Emerson Liebert DS Series User Manual Download Page 13 | Manualshive

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Liebert DS Components and Nomenclature

3

1.0

L

IEBERT

DS C

OMPONENTS

AND

N

OMENCLATURE

Figure 1

Downflow model component locations

14

1. Liebert iCOM
2. Electric Box
3. Filters
4. Evaporator Coil
5. Motor
6. Blower
7. Fan Pulley
8. Motor Sheave and Belts
9. Compressor Section

10. Infrared Humidifier, optional
11. Disconnect, optional
12. Condensate Pump, optional
13. Smoke Sensor, optional
14. Condenser Cleanout Plugs, fluid-cooled units only
15.Condenser Drain Plugs, fluid-cooled units only
16. Econ-O-Coil Valve, GLYCOOL/Dual Cooling
17. Variable Frequency Drive (optional on
digital scroll units only)
18. EC Fans, optional

DPN000958
Rev. 3

3

1

17

11

2

9

15

4

16 10

12

6

8

5

18

18

7

13

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11
12
13
14
15
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Summary of Contents for Liebert DS Series

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Page 3: ...to the Installation Location with Piano Jacks 40 5 2 3 Removing Piano Jacks 40 5 2 4 Removing Liebert DS from Skid Using Rigging 41 5 3 Semi Hermetic Compressor Spring Isolation System 43 5 4 Placing the Unit on a Floor Stand 43 6 0 EC FANS LOWERING AND REMOVING 44 6 1 Lowering the EC Fans into the Floor Stand 44 6 2 Removing the EC Fans 47 7 0 DISASSEMBLING THE LIEBERT DS FOR TRANSPORT 50 7 1 Req...

Page 4: ...dures for R 407C and R 22 89 9 3 1 Air Cooled Condenser with Variable Fan Speed Head Pressure Control Systems 89 9 3 2 Air Cooled Condenser with Liebert Lee Temp Flooded Condenser Head Pressure Control System 91 9 3 3 Water Glycol Cooled System 93 10 0 PIPING SCHEMATICS 94 11 0 CHECKLIST FOR COMPLETED INSTALLATION 124 11 1 Moving and Placing Equipment 124 11 2 Electrical 124 11 3 Piping 124 11 4 O...

Page 5: ...Electric Reheat Three Stage and SCR 144 13 9 Thermostatic Expansion Valve 144 13 9 1 Determine Suction Superheat 144 13 9 2 Adjust Superheat Setting with the TEV 144 13 10 Compressor 145 13 10 1 Compressor Oil 145 13 10 2 Semi Hermetic Compressors 145 13 10 3 Scroll and Digital Scroll Compressors 145 13 11 Compressor Replacement 145 13 11 1 Compressor Motor Burnout 145 13 11 2 Digital Compressor U...

Page 6: ... Cabinet and floor planning dimensions upflow water glycol GLYCOOL 28 42kW 8 12 ton all compressor models 21 Figure 17 Cabinet and floor planning dimensions upflow air cooled 53 77kW 15 22 ton semi hermetic compressor models 22 Figure 18 Cabinet and floor planning dimensions upflow air cooled 53 77kW 15 22 ton scroll or digital scroll compressor models 23 Figure 19 Cabinet and floor planning dimen...

Page 7: ...sions upflow air cooled 28 42kW 8 12 ton semi hermetic compressor models 67 Figure 53 Component dimensions upflow air cooled 28 42kW 8 12 ton scroll digital scroll compressor models 68 Figure 54 Component dimensions upflow water glycol GLYCOOL 28 42kW 8 12 ton all compressor models 69 Figure 55 Component dimensions upflow air cooled 53 77kw 15 22 ton semi hermetic compressor models 70 Figure 56 Co...

Page 8: ...ompressor models 112 Figure 86 Primary connection locations downflow air cooled 105kW 30 ton all compressor models with EC fan 113 Figure 87 Primary connection locations downflow water glycol GLYCOOL 105kW 30 ton all compressor models 114 Figure 88 Primary connection locations downflow water glycol GLYCOOL 105kW 30 tons all compressor models with EC fan 115 Figure 89 Primary connection locations u...

Page 9: ...n models 27 Table 20 Floor stand and floor planning dimensions downflow 53 77kW 15 22 ton models 28 Table 21 Floor stand and floor planning dimensions downflow 53 77kW 15 22 ton models with EC fans 29 Table 22 Floor stand and floor planning dimensions downflow 105kW 30 ton models 30 Table 23 Floor stand and floor planning dimensions downflow 105kW 30 ton models with EC fans 31 Table 24 Blower outl...

Page 10: ...51 R 22 and R 407C refrigerant required approximate 87 Table 52 Interconnecting piping refrigerant charge 87 Table 53 Additional oil required per refrigerant charge 88 Table 54 Fan speed suction pressure transducer settings 90 Table 55 Lee Temp suction pressure transducer settings 92 Table 56 Water Glycol cooled and GLYCOOL suction pressure transducer settings 93 Table 57 Piping data upflow air co...

Page 11: ...e The only way to ensure that there is NO voltage inside the unit is to install and open a remote disconnect switch Refer to unit electrical schematic Follow all local codes WARNING Risk of explosive discharge from high pressure refrigerant Can cause injury or death This unit contains fluids and gases under high pressure Relieve pressure before working with piping WARNING Risk of refrigerant syste...

Page 12: ...tablish the inhibitor requirement The water or water glycol solution must be analyzed every six months to determine the pattern of inhibitor depletion The complexity of water caused problems and their correction makes it important to obtain the advice of a water treatment specialist and follow a regularly scheduled maintenance program CAUTION Risk of contact with hot surfaces Can cause injury The ...

Page 13: ...ave and Belts 9 Compressor Section 10 Infrared Humidifier optional 11 Disconnect optional 12 Condensate Pump optional 13 Smoke Sensor optional 14 Condenser Cleanout Plugs fluid cooled units only 15 Condenser Drain Plugs fluid cooled units only 16 Econ O Coil Valve GLYCOOL Dual Cooling 17 Variable Frequency Drive optional on digital scroll units only 18 EC Fans optional DPN000958 Rev 3 3 1 17 11 2 ...

Page 14: ...or 6 Blower 7 Fan Pulley 8 Motor Sheave and Belts 9 Compressor Section 10 Infrared Humidifier optional 11 Disconnect optional 12 Condensate Pump optional 13 Smoke Sensor optional 14 Condenser Cleanout Plugs fluid cooled units only 15 Condenser Drain Plugs fluid cooled units only 16 Econ O Coil Valve GLYCOOL Dual Cooling 17 Variable Frequency Drive optional on Digital Scroll units only DPN001222 Re...

Page 15: ...col K GLYCOOL H Dual Cooling Water Glycol Factory Configuration Number Humidification 0 None I Infrared S Steam Generating Canister Reheat Type 0 None E Three stage electric S SCR W Hot water Voltage A 460 3 60 B 575 3 60 C 208 3 60 D 230 3 60 2 380 3 60 J 200 3 50 M 380 415 3 50 Compressor Type U Semi hermetic with four step R 407C S Scroll R 407C D Digital Scroll R 407C M Semi hermetic with four...

Page 16: ...tory charged and tested Field installed water piping is required from the unit to the cooling tower GLYCOOL GLYCOOL units are factory charged and tested Field installed piping is required from the unit to the drycooler and pump package An additional coil is included for use when fluid temperatures are sufficiently low below room temperature Cooling is provided by circulating cold glycol through th...

Page 17: ... 3 2 Air Distribution Downflow Units Verify that the raised floor has been properly sized for the unit s airflow and the room is free of airflow restrictions Perforated floor tiles in the raised floor should ensure minimal pressure loss The raised floor must provide 7 1 2 191mm of clearance Ensure that there is adequate clearance above the unit for service such as replacing filters Optional plenum...

Page 18: ...5 Upflow ducting configurations WARNING Risk of high speed moving parts Can cause injury or death Disconnect all local and remote electric power supplies before working in the unit Do not operate upflow units without installing a plenum ductwork or guard over the blower opening s on the top surface of the unit cabinet Ductwork must be connected to the blower s or a plenum must be installed on the ...

Page 19: ...ional and local electrical codes See equipment nameplate for details If seismic requirements apply consult your local Emerson representative for information about a seismic rated floor stand 3 5 Operating Conditions The Liebert DS must be operated in a conditioned space within the operating envelope ASHRAE recommends for data centers Maximum temperature of 77 F 25 C DB and 55 RH or maximum WB of 6...

Page 20: ... 1918 2088 1968 2138 G C Semi 2218 2388 2268 2438 Scroll 2068 2238 2118 2288 15 Ton Air Semi 2512 2712 2512 2712 Scroll 2070 2260 2220 2410 Air D C Semi 2692 2892 2692 2892 Scroll 2250 2440 2400 2590 W G Semi 2812 3012 2812 3012 Scroll 2382 2582 2532 2732 G C Semi 2992 3192 2992 3192 Scroll 2562 2762 2712 2912 20 Ton Air Semi 2562 2762 2662 2862 Scroll 2120 2310 2220 2410 Air D C Semi 2742 942 284...

Page 21: ...ev 3 Secondary Refrigerant Piping Entrance Opening 56 7 8 1445mm Air Inlet Opening Top View 86 2184mm Secondary Entrance High Volt Connection s 35 889mm 33 838mm 76 1930mm 2 51mm Front View 85 2159mm Shaded areas indicate a recommended minimum clearance for component access 34 864mm 15 381mm Bezels Minimum clearance required for filter replacement 3 4 19mm Secondary Entrance Low Volt Connections O...

Page 22: ...rigerant Piping Entrance DPN000796 Rev 2 Notes Filters are accessible through top of unit only Downflow electrical connections can be made from top or bottom of unit Shaded area indicates a recommended minimum clearance for component access Top View Air Inlet Opening Secondary Entrance High Volt Connection s Secondary Entrance Low Volt Connections Minimum required for filter replacement 73 1854mm ...

Page 23: ...YCOOL Dual Cool 1930 877 33 838mm Notes Filters are accessible through top of unit only Downflow electrical connections can be made from top or bottom of unit Front View Top View Air Inlet Opening Shaded area indicates a recommended minimum clearance for component access 86 2184mm DPN000894 Rev 3 2 51mm 85 2159mm 76 1930mm 35 889mm 56 7 8 1445mm Opening 3 4 19mm Bezels Secondary Entrance High Volt...

Page 24: ... 1173 2630 1196 33 838mm 35 889mm 109 2769mm 76 1930mm 2 51mm 108 2743mm 34 864mm Shaded area indicates a recommended minimum clearance for component yaccess 15 381mm 3 4 19mm 24 3 8 619mm 80 2032mm Second Refrigerant Piping Entrance Air Inlet Opening Opening Opening Bezels Secondary Entrance Low Volt Connections Minimum required for filter replacement Secondary Entrance High Volt Connection s Top...

Page 25: ...200 1000 15 381mm Notes Filters are accessible only through top of unit Downflow electrical connections can be made from top or bottom of unit Front View Top View Air Inlet Opening Shaded area indicates a recommended minimum clearance for component access Secondary Entrance High Volt Connection s Secondary Refrigerant Piping Entrance Secondary Entrance Low Volt Connections 76 1930mm 2 51mm DPN0009...

Page 26: ... 2270 1032 2320 1055 GLYCOOL Dual Cool 2400 1091 2450 1114 2500 1137 Notes Filters are accessible through top of unit only Downflow electrical connections can be made from top or bottom of unit Shaded area indicates a recommended minimum clearance for component access Required for condenser cleanout 15 381mm 34 864mm DPN000931 Rev 3 76 1930mm Top View Air Inlet Opening Secondary Entrance High Volt...

Page 27: ...sor Air Cooled 2920 1327 2654 1204 Dual Cool 3280 1491 3014 1367 33 838mm 35 889mm 132 3353mm 76 1930mm 131 3327mm 34 864mm Shaded area indicates a recommended minimum clearance for component access 15 381mm 3 4 19mm 24 3 8 619mm 102 13 16 2611mm Opening Secondary Refrigerant Piping Entrance Opening Bezels Secondary Entrance Low Volt Connections Minimum required for filter replacement Secondary En...

Page 28: ...Cool 3650 1659 Notes Filters are accessible through top of unit only Downflow electrical connections can be made from top or bottom of unit TOP VIEW AIR INLET OPENING Shaded area indicates a recommended minimum clearance for component access Minimum required for filter replacement Secondary Entrance High Volt Connection s FRONT VIEW Required for condenser cleanout Secondary Entrance Low Volt Conne...

Page 29: ...N001162 Rev 1 33 838mm 35 889mm 1 1 2 38mm 86 2184mm Top View 76 1930mm High Volt Connection s 2 51mm 85 2159mm 34 864mm 24 610mm Minimum required for blower replacement Shaded area indicates a recommended minimum clearance for component access Front View 3 4 19mm Bezels Low Volt Connection s Alternate Refrigerant Piping Entrance Note Front air return unit shown For rear return unit in addition to...

Page 30: ...1670 758 Alternate Refrigerant Piping Entrance 3 4 19mm Bezels 24 610mm 34 864mm 72 1829mm FRONT VIEW DPN001163 Rev 1 Shaded area indicates a recommended minimum clearance for component access 2 51mm 76 1930mm 1 1 2 38mm TOP VIEW 73 1854mm High Volt Connection s 35 889mm 33 838mm Minimum required for blower replacement Low Volt Connection s Note Front air return unit shown For rear return unit in ...

Page 31: ...YCOOL Dual Cool 1980 898 DPN001164 Rev 1 Alternate Refrigerant Piping Entrance 3 4 19mm Bezels 24 610mm 34 864mm 85 2159mm FRONT VIEW Shaded area indicates a recommended minimum clearance for component access 2 51mm 76 1930mm 1 1 2 38mm TOP VIEW 86 2184mm High Volt Connection s Condenser Cleanout Access 35 889mm 33 838mm Minimum required for blower replacement Required for condenser cleanout Low V...

Page 32: ...2680 1216 DPN001165 Rev 1 TOP VIEW FRONT VIEW High Volt Connection s Alternate Refrigerant Piping Entrance Low Volt Connection s Shaded area indicates a recommended minimum clearance for component access 3 4 19mm Bezels 35 889mm 33 838mm 76 1930mm 2 51mm 109 2769mm 108 2743mm 1 1 2 38mm 24 610mm 34 864mm Minimum required for blower replacement Note Front air return unit shown For rear return unit ...

Page 33: ...l 2250 1021 DPN001166 Rev 1 TOP VIEW FRONT VIEW High Volt Connection s Alternate Refrigerant Piping Entrance Low Volt Connection s Shaded area indicates a recommended minimum clearance for component access 3 4 19mm Bezels 35 889mm 33 838mm 76 1930mm 2 51mm 98 2489mm 97 2464mm 1 1 2 38mm 24 610mm 34 864mm Minimum required for blower replacement Note Front air return unit shown For rear return unit ...

Page 34: ...er Glycol 2370 1075 GLYCOOL Dual Cool 2550 1157 DPN001167 Rev 1 TOP VIEW FRONT VIEW High Volt Connection s Alternate Condenser Fluid Piping Entrance Low Volt Connection s Shaded area indicates a recommended minimum clearance for component access 3 4 19mm Bezels Condenser CleanoutAccess 35 889mm 33 838mm 76 1930mm 2 51mm 109 2769mm 108 2743mm 1 1 2 38mm 24 610mm 34 864mm Minimum required for blower...

Page 35: ... Dual Cool 3210 1456 DPN001168 REV 0 FRONT VIEW TOP VIEW High Volt onnection s Alternate Refrigerant Piping Entrance Low Volt Connection s Shaded area indicates a recommended minimum clearance for component access Minimum required for blower replacement 34 864mm 24 610mm 3 4 19mm Bezels 33 838mm 35 889mm 2 51mm 76 1930mm 1 1 2 38mm 131 3327mm 132 3353mm Note Front air return unit shown For rear re...

Page 36: ...9 REV 0 FRONT VIEW TOP VIEW High Volt Connection s Alternate Condenser Fluid Piping Entrance Alternate Refrigerant Piping Entrance Low Volt Connection s Shaded area indicates a recommended minimum clearance for component access Minimum required for blower replacement Required for condenser cleanout 34 864mm 24 610mm 3 4 19mm Bezels 33 838mm 35 889mm 2 51mm 76 1930mm 1 1 2 38mm 131 3327mm 132 3353m...

Page 37: ...33 16 416 24 610 19 492 DPN000820 REV 2 Right side of paneled unit is flush with right side of floor stand All other paneled sides overhang floor stand 1 25mm Leveling feet are provided with 1 1 2 38mm adjustment from nominal height C Gussets supplied on floor stands 12 305 mm tall and greater Turning vane air outlet Optional turning vane can be field installed in supply air discharge opening for ...

Page 38: ... 533 16 416 24 610 19 492 DPN000930 REV 1 Gussets supplied on floor stands 12 305 mm tall and greater Turning vane air outlet Optional turning vane can be field installed in supply air discharge opening for front or rear air discharge Supply air discharge opening Optional turning vane shown as front air discharge Supply air discharge opening 34 1 2 876mm with feet A 1 1 2 38mm with feet 33 838mm 6...

Page 39: ...e of floor stand All other paneled sides overhang floor stand 1 25mm 3 The floor stand used with EC units is not symmetrical and its orientation to the Liebert DS is critical for lowering the EC fans Unless the floor stand is installed in the correct position the blowers will not lower into the floor stand 4 Jack and jack support are shipped loose and are intended to be placed into position under ...

Page 40: ...g vane air outlet Optional turning vane can be field installed in supply air discharge opening for front or rear air discharge Supply air discharge opening Optional turning vane shown as front air discharge Supply air discharge opening 33 838mm 34 1 2 876mm with feet 132 1 2 3366mm with feet 26 660mm 91 3 4 2330mm 131 3327mm 16 3 4 425mm 1 25mm TYP 3 76mm 7 8 23mm 4 1 2 114mm C Right side of panel...

Page 41: ...ht side of floor stand All other paneled sides overhang floor stand 1 25mm 3 The floor stand used with EC units is not symmetrical and its orientation to the Liebert DS is critical for lowering the EC fans Unless the floor stand is installed in the correct position the blowers will not lower into the floor stand 4 Jack and jack support are shipped loose and are intended to be placed into position ...

Page 42: ... Throw 15 7 8 404 18 5 8 472 2 1 8 54 25 5 8 651 25 635 Rear Throw 15 7 8 404 18 5 8 472 11 5 8 295 25 5 8 651 25 635 15 x 11 Front Throw 15 7 8 404 14 1 2 368 2 1 8 54 25 5 8 651 25 635 Rear Throw 15 7 8 404 14 1 2 368 11 5 8 295 25 5 8 651 25 635 E C B A D 73 1854mm or 86 2184mm Ref 35 889mm Ref 76 1930mm Ref 1 1 2 38mm Blower Deck DPN001120 Rev 2 Blower Outlet Duct flange not provided Blower Ou...

Page 43: ...11 5 8 295 25 5 8 651 27 3 4 705 55 1 2 1410 25 1 8 638mm 50 1 2 1283mm 15 x 11 Front Throw 15 7 8 404 14 11 16 373 2 1 8 54 25 5 8 651 31 3 8 797 58 7 16 1484 27 3 4 705mm 47 1194mm Rear Throw 15 7 8 404 14 11 16 373 11 5 8 295 25 5 8 651 31 3 8 797 58 7 16 1484 27 3 4 705mm 47 1194mm Blower Deck Top of Unit Front or Rear Air Throw Supply Blower Deck 1 1 2 38mm 76 1930mm Ref DPN001191 Rev 4 Blowe...

Page 44: ... ton 15 x 11 Front Throw 15 7 8 404 14 11 16 373 2 1 8 54 25 5 8 651 30 3 4 781 54 1 2 1384 78 1 8 1984 Rear Throw 15 7 8 404 14 11 16 373 11 5 8 295 25 5 8 651 30 3 4 781 54 1 2 1384 78 1 8 1984 1 1 2 38mm A A A G F E C 132 3353mm 35 889mm Ref Front of Unit Blower Outlets Blower Outlet Location TOP VIEW Blower Deck Duct Flanges Not Provided Top of Unit D Front or Rear Throw Air Supply 76 1930mm R...

Page 45: ... 22 ton Air Cooled Scroll and Air Cooled Digital Scroll Models 3 1 4 83 75 1 2 1918 19 1 4 489 72 3 8 1838 6 53 77kW 15 22 ton Semi Hermetic and all Water Glycol GLYCOOL Models 3 1 4 83 75 1 2 1918 30 1 4 768 72 3 8 1838 6 105kW 30 ton All Models 2 1 4 57 100 1 4 2546 29 1 2 749 97 1 8 2467 8 DPN001196 Rev 0 NOTES 1 Filters can be accessed from either side 2 25 635mm minimum clearance provided on ...

Page 46: ... 4 2089 26 3 4 679 18 x 78 457 x 1981 18 x 20 457 x 508 105kW 30 ton All Models 105 1 4 2673 26 3 4 679 36 914 1 18 x 20 457 x 508 18 x 20 457 x 508 1 18 x 78 457 x 1981 Notes 1 Typical 53 77kW 15 22ton unit orientation shown with grille plenum View varies by unit size and plenum selection 2 All plenums are shipped flat and must be field assembled 3 Optional grille plenum kits must include front o...

Page 47: ...antled as detailed in 7 0 Disassembling the Liebert DS for Transport NOTICE Risk of damage from forklift Keep tines of the forklift level and at a height suitable to fit below the skid and or unit to prevent exterior and or underside damage NOTICE Risk of damage from forklift Keep tines of the forklift level and at a height suitable to fit below the skid and or unit to prevent exterior and or unde...

Page 48: ...und The unit is to be pulled by the forklift If the unit must be lifted higher than 6 152mm great care must be exercised Personnel who are not directly involved in moving the unit must be kept 20 5m or farther from the lift point of the unit Always refer to the location of the center of gravity indicators when lifting the Liebert DS see Figure 36 5 2 Unpacking the Unit Remove outer packaging when ...

Page 49: ...oper moving Can cause equipment damage injury or death Use the center of gravity indicators on the unit to determine the entry points for the tines see Figure 36 The center of gravity varies depending on the unit size and selected options The forklift s tines must be equally spaced on either side of the center of gravity indicator WARNING Risk of improper moving Can cause equipment damage injury o...

Page 50: ...he forklift 4 Use the piano jacks to move the unit for installation Figure 35 Moving the unit to its installation location 5 2 3 Removing Piano Jacks 1 Lower the unit as much as the piano jacks will allow 2 Undo all strapping holding the piano jacks to the unit 3 Use a pry bar or similar device to lift one end of the unit just enough to allow removal of the piano jack from that end 4 Repeat Step 3...

Page 51: ...ft the Liebert DS off the skid 7 Move the skid from under the unit WARNING Risk of improper moving Can cause equipment damage injury or death Use the center of gravity indicators see Figure 36 on the unit to determine the position of the slings The center of gravity varies depending on the unit size and selected options The forklift s tines must be equally spaced on either side of the center of gr...

Page 52: ...Equipment Inspection and Handling 42 Figure 37 Using rigging to lift Liebert DS off skid Equal Distance Equal Distance Lifting Sling Lifting Sling 181659P1 Rev 5 ...

Page 53: ...oor Stand Ensure that the optional turning vane is installed in the floor stand if included prior to placing the unit Refer to the floor stand installation sheet 182278P1 located inside the floor stand package Lower the unit onto the floor stand Refer to Detail A in Figure 38 Be sure to align the welded tabs on top of the floor stand with the inside of the unit frame base Figure 38 Setting the uni...

Page 54: ... plate All other cable ties that route the fan wiring should remain intact 6 Remove the six 1 2 hex head screws Retain the hardware for later use WARNING Risk of electric shock and high speed rotating fan blades Can cause injury or death Disconnect all local and remote electric power supplies and verify that fan blades have stopped rotating before working within WARNING Risk of very heavy fan modu...

Page 55: ...op Cut and Remove Cable Tie Securing Wiring Loop Z Bracket not present on Liebert DS units Z Bracket not present on Liebert DS Section Not Shown Raise Jack to Support Fan Raise Jack to Support Fan Remove Middle Panel from Front of Unit Remove Bottom Panel from Front of Unit Remove Infrared Humidifier Section Not Shown Tabs Detail A Section B B Top View of Fan Deck DPN002037 Page 1 Rev 4 Jack Locat...

Page 56: ...ling the hex head screws directly to the frame Screw clearance holes are provided in the fan module 9 Repeat Steps 3 through 8 to lower remaining fan modules Figure 40 Lowering EC fans into floor stand Steps 7 through 9 NOTE Not all hardware retained will be used to secure the fans in the lowered positioned C C 6 DPN002037 Page 2 Rev 4 Fan Deck and Side Panels Not Shown SECTION C C Z Brackets not ...

Page 57: ...while raising the fan to be sure that they are not caught or pinched while the fan is being raised WARNING Risk of electric shock and high speed rotating fan blades Can cause injury or death Disconnect all local and remote electric power supplies and verify that fan blades have stopped rotating before working within WARNING Risk of very heavy fan modules dropping downward suddenly Can cause injury...

Page 58: ...h the front of the unit 9 To reinstall the fan module reverse the steps above Remove the field supplied fan removal device before resuming unit operation NOTE Refer to the unit s electrical schematic for specific wire attachment points B B A DPN001695 Page 1 Rev 5 Tabs SECTION B B Detail A Jack Location Floor Stand Partially Hidden Raise Jack to Support Fan Position Jack to Support Fan Position Ja...

Page 59: ...rame Channel Raise Fan Module With Jack Disconnect Hign and Low Voltage Wiring Front Frame Channel Rear Frame Channel Right Side Panel Not Shown Right Side Panel Not Shown DPN001695 Page 3 Rev 5 Field Supplied Fan Removal Devices End View Field Supplied Fan Removal Devices Slide the Fan Out the Front of the Unit ...

Page 60: ... jacks Stepladder for downflow units Refrigeration tools WARNING Risk of explosive discharge from high pressure refrigerant Can cause injury or death This unit contains fluids and or gases under high pressure Relieve pressure before working with piping compressors or other internal components WARNING Risk of top heavy unit falling over Improper handling can cause equipment damage injury or death R...

Page 61: ...harness from the bottom of the contactor in the electric box b For infrared humidifiers Remove the quick connect plugs from the following low voltage connections 35 5 and 35 6 safety under pan 35 3 and 35 4 humidifier make up valve and 8 5 and 8 7 high water alarm For steam generating humidifiers Remove the quick connect plugs from the following low voltage connections 35 1 H 24H and H 24G and 35 ...

Page 62: ...s that interconnect unit sections 22 Immediately cap and seal all piping that has been cut including the suction and liquid lines as well as the fluid piping on GLYCOOL and dual cool units 7 2 1 Remove the Compressor Assembly 1 Secure the compressor wire harness to the compressor assembly 2 Remove the 10 thread cutting bolts holding the compressor section assembly to the filter and electric box as...

Page 63: ... shocks The blower and coil assembly must remain upright The coil is not secured to the blower and coil assembly Secure the coil to the bottom section with straps or a similar method before moving the section 7 Move each section of the Liebert DS to the installation location 7 3 Reassembly Downflow Units 1 Replace the top section Make sure to clear the Schrader valves on the coil header 2 Reconnec...

Page 64: ...r charge 8 Reinstall the galvanized panels on the left side of the coil 9 Replace the filters 10 Replace the panels 7 4 Reassembly Checklist ___ 1 Thread cutting bolts reconnected and torqued to 225 in lb 25Nm ___ 2 Top cover plate attached to coil ___ 3 Filter plate attached ___ 4 High voltage wires connected to proper contactors ___ a Compressor ___ b Fan motor ___ c Reheat if applicable ___ d H...

Page 65: ... Cooled Dual Cool Compressor Assembly 800 364 800 364 Filter Electric Box Assembly 210 96 210 96 Blower Coil Assembly 770 350 920 418 59 1499mm DPN000801 Rev 1 33 838mm 76 1930mm 26 660mm 85 2159mm Assembled Length 76 1930mm Assembled Height 60 3 16 1529mm 37 940mm 39 991mm Compressor Assembly Filter Electric Box Assembly Blower Coil Assembly Drawing views are simplified with panels removed to sho...

Page 66: ...Cooled Dual Cool Compressor Assembly 490 223 490 223 Filter Electric Box Assembly 210 96 210 96 Blower Coil Assembly 770 350 920 418 59 1499mm DPN000802 Rev 1 33 838mm 13 330mm 76 1930mm 72 1829mm Assembled Length 76 1930mm Assembled Height 60 3 16 1529mm 37 940mm 39 991mm Compressor Assembly Filter Electric Box Assembly Blower Coil Assembly Drawing views are simplified with panels removed to show...

Page 67: ...COOL Dual Cool Water Glycol GLYCOOL Dual Cool Compressor Assembly 950 432 950 432 800 364 800 364 Filter Electric Box Assembly 210 96 210 96 210 96 210 96 Blower Coil Assembly 770 350 920 418 770 350 920 418 59 1499mm DPN000899 Rev 1 33 838mm 26 660mm 76 1930mm 85 2159mm Assembled Length 76 1930mm Assembled Height 60 3 16 1529mm 37 940mm 39 991mm Compressor Assembly Filter Electric Box Assembly Bl...

Page 68: ...nels lb kg Component Air Cooled Dual Cool Compressor Assembly 970 441 970 441 Filter Electric Box Assembly 250 114 250 114 Blower Coil Assembly 1230 560 1410 641 82 2083mm 33 838mm 26 660mm 76 1930mm 108 2743mm Assembled Length 76 1930mm Assembled Height 59 7 16 1509mm 37 940mm 39 991mm Compressor Assembly Filter Electric Box Assembly DPN000926 Rev 3 Blower Coil Assembly Drawing views are simplifi...

Page 69: ...luding Panels lb kg Component Air Cooled Dual Cool Compressor Assembly 540 246 540 246 Filter Electric Box Assembly 250 114 250 114 Blower Coil Assembly 1230 560 1410 641 82 2083mm DPN000927 Rev 3 33 838mm 15 381mm 76 1930mm 97 2464mm Assembled Length 76 1930mm Assembled Height 59 7 16 1509mm 37 940mm 39 991mm Compressor Assembly Filter Electric Box Assembly Blower Coil Assembly Drawing views are ...

Page 70: ...Glycol lb kg GLYCOOL Dual Cool lb kg Compressor Assembly 1270 578 1270 578 840 382 840 382 Filter and Electric Box Assembly 250 114 250 114 250 114 250 114 Blower Coil Assembly 1230 560 1410 641 1230 560 1410 641 76 1930mm Assembled Height 33 838mm 76 1930mm 26 660mm Compressor Assembly Filter Electric Box Assembly Blower Coil Assembly 108 2743mm Assembled Length 82 2083mm 37 940mm 59 7 16 1509mm ...

Page 71: ...ual Cool Air Cooled Dual Cool Compressor Assembly 950 432 950 432 950 432 950 432 Filter Electric Box Assembly 270 123 270 123 270 123 270 123 Blower Coil Assembly 1820 827 2180 991 1560 708 1915 870 37 940mm 59 7 16 1510mm DPN001057 Rev 1 131 3327mm Assembled Length 33 838mm 26 660mm 105 2667mm 76 1930mm 76 1930mm Assembled Height 39 991mm 41 11 16 1059mm Filter and Electric Box Assembly Compress...

Page 72: ...l Cool Air Cooled Dual Cool Compressor Assembly 830 377 830 377 830 377 830 377 Filter Electric Box Assembly 270 123 270 123 270 123 270 123 Blower Coil Assembly 1820 827 2180 991 1560 708 1915 870 DPN001058 Rev 1 131 3327mm Assembled Length 76 1930mm Assembled Height Blower and Coil Assembly Compressor Assembly Filter Electric Box Assembly 37 940mm 59 7 16 1510mm 39 991mm 41 11 16 1059mm 76 1930m...

Page 73: ...l Water Glycol GLYCOOL Dual Cool Compressor Assembly 1320 600 1320 600 1200 545 1200 545 Filter Electric Box Assembly 270 123 270 123 270 123 270 123 Blower Coil Assembly Forward Curve Fan EC Fan 1820 827 1560 708 2180 991 1915 870 1820 827 1560 708 2180 991 1915 870 DPN001060 Rev 1 59 7 16 1510mm Filter Electric Box Assembly 33 838mm 76 1930mm 76 1930mm Assembled Height 26 660mm Compressor Assemb...

Page 74: ...assembly section 9 Condensate pump optional component Disconnect condensate pump high voltage wire harness Remove low volt wires from terminal strip 24 and 55 Pull conduit and wires into filter and coil assembly section of unit 10 Glycool Dual Cool optional component On units with actuator unplug valve actuator harness at actuator and pull wire harness into electric box Disconnect glycol sensor fr...

Page 75: ...ove the shipping blocks from the semi hermetic compressors until the Liebert DS is fully reassembled and ready for installation 7 5 2 Remove Blower and Electric Box Assembly 1 Remove the motor access plate from right end of unit This will provide a place to grasp the blower and electric box assembly and move it Remove the coil access plates on the left side of the unit for clearance when brazing t...

Page 76: ...m the brazing area 11 Wrap the piping with wet cloths Use copper fittings where required 12 Refer to 9 0 Piping for piping guidelines and to the ASHRAE Refrigeration Handbook for general good practice refrigeration piping 13 Open service valves on compressor 14 Reinsert plastic bushings 15 Charge the Liebert DS with refrigerant see the unit s nameplate for the proper charge 16 Replace the galvaniz...

Page 77: ...nent Air Cooled Dual Cool Compressor Assembly 800 364 800 364 Blower Electric Box Assembly 510 231 510 231 Filter Coil Assembly 520 236 670 304 DPN001171 Rev 0 31 1 4 794mm 45 13 16 1163mm 76 1930mm Assembled Height 85 2159mm 59 1499mm Assembled Length 26 660mm Drawing views are simplified with panels removed to show overall dimensions See disassembly and handling instructions in installation manu...

Page 78: ...kg Component Air Cooled Dual Cool Compressor Assembly 490 223 490 223 Blower Electric Box Assembly 510 231 510 231 Filter Coil Assembly 520 236 670 304 31 1 4 794mm 76 1930mm Assembled Height 45 13 16 1163mm DPN001172 Rev 0 59 1499mm 72 1829mm 13 330mm 33 838mm 76 1930mm Compressor Assembly Filter Coil Assembly Blower Electric Box Assembly Assembled Length Drawing views are simplified with panels ...

Page 79: ...OL Dual Cool Water Glycol GLYCOOL Dual Cool Compressor Assembly 950 432 950 432 800 364 800 364 Blower Electric Box Assembly 510 231 510 231 510 231 510 231 Filter Coil Assembly 520 236 670 304 520 236 670 304 DPN001173 Rev 0 31 1 4 794mm 45 13 16 1163mm 76 1930mm Assembled Height 85 2159mm Assembled Length 59 1499mm 26 660mm 33 838mm 76 1930mm Compressor Assembly Blower Electric Box Assembly Filt...

Page 80: ...nent Air Cooled Dual Cool Compressor Assembly 970 441 970 441 Blower Electric Box Assembly 770 349 770 349 Filter Coil Assembly 760 345 940 426 82 2083mm 33 838mm 76 1930mm DPN001209 Rev 0 26 660mm Compressor Assembly Blower Electric Box Assembly Filter Coil Assembly 45 13 16 1163mm 31 1 4 794mm 76 1930mm Assembled Height 108 2743mm Assembled Length Drawing views are simplified with panels removed...

Page 81: ... kg Component Air Cooled Dual Cool Compressor Assembly 540 246 540 246 Blower Electric Box Assembly 770 349 770 349 Filter Coil Assembly 760 345 940 426 82 2083mm 33 838mm 76 1930mm DPN001210 Rev 0 15 381mm Compressor Assembly Blower Electric Box Assembly Filter Coil Assembly 45 13 16 1163mm 31 1 4 794mm 76 1930mm Assembled Height 97 2464mm Assembled Length Drawing views are simplified with panels...

Page 82: ...ol GLYCOOL Dual Cool Water Glycol GLYCOOL Dual Cool Compressor Assembly 1270 578 1270 578 840 382 840 382 Blower Electric Box Assembly 770 349 770 349 770 349 770 349 Filter Coil Assembly 760 345 940 426 760 345 940 426 82 2083mm 33 838mm 76 1930mm DPN001211 Rev 0 26 660mm Compressor Assembly Blower Electric Box Assembly Filter Coil Assembly 45 13 16 1163mm 31 1 4 794mm 76 1930mm Assembled Height ...

Page 83: ...r Cooled Dual Cool Compressor Assembly 950 431 950 431 Blower Electric Box Assembly 1080 490 1080 490 Filter Coil Assembly 970 440 1300 590 DPN001254 REV 0 31 1 4 794mm 33 838mm 76 1930mm 26 660mm Filter Coil Assembly Compressor Assembly Blower Electric Box Assembly 105 2667mm 131 3327mm Assembled Length 45 13 16 1164mm 76 1930mm Assembled Height Drawing views are simplified with panels removed to...

Page 84: ...onent Air Cooled Dual Cool Compressor Assembly 830 376 830 376 Blower Electric Box Assembly 1080 490 1080 490 Filter Coil Assembly 970 440 1300 590 DPN001255 REV 0 31 1 4 794mm 33 838mm 76 1930mm 26 660mm Filter Coil Assembly Compressor Assembly Blower Electric Box Assembly 105 2667mm 131 3327mm Assembled Length 45 13 16 1164mm 76 1930mm Assembled Height Drawing views are simplified with panels re...

Page 85: ...L Dual Cool Water Glycol GLYCOOL Dual Cool Compressor Assembly 1320 599 1320 599 1200 544 1200 544 Blower Electric Box Assembly 1080 490 1080 490 1080 490 1080 490 Filter Coil Assembly 970 440 1300 590 970 440 1300 590 DPN001256 REV 0 31 1 4 794mm 33 838mm 76 1930mm 26 660mm Filter Coil Assembly Compressor Assembly Blower Electric Box Assembly 105 2667mm 131 3327mm Assembled Length 76 1930mm Assem...

Page 86: ...ection NOTICE Risk of improper electrical supply connection Can cause equipment damage See transformer label for primary tap connections Installer will need to change transformer primary taps if applied unit voltage is other than pre wired tap voltage NOTICE Risk of overheated terminals Can cause wiring and component damage Use copper wiring only Make sure that all connections are tight WARNING Ri...

Page 87: ...PFLOW P64 P67 Liebert IntelliSlot Housing DOWNFLOW LOW VOLTAGE SECTION OVERCURRENT PROTECTION DEVICES CONTACTORS CONTACTORS RELAYS AND OVERLOAD PROTECTORS Note Typical orientation of components shown Component location varies by option and unit size CAUTION Risk of broken or shorted low voltage wiring Field installed low voltage wiring must be routed with loop as shown to allow electric box to swi...

Page 88: ...s from smoke sensor are 91 common 92 NO and 93 NC Supervised contacts 80 81 open on sensor trouble indication This smoke sensor is not intended to function as or replace any room smoke detection system that may be required by local or national codes 1A 24VAC max load Use field supplied Class 1 wiring 16 Reheat and humidifier lockout Remote 24VAC required at Terminals 82 83 for lockout of reheat an...

Page 89: ...nd VSD requirements May cause equipment damage and failure The EMC filter must be removed from the VSD if the power supply is Delta connected 8 1 2 Wye Connected Power Supply No control changes are required if the Liebert VSD Control unit will be operated with Wye connected power Figure 62 Wye connected power diagram WARNING Risk of electric shock from leakage current Can cause injury or death Rec...

Page 90: ...the power supply before working on the unit 2 Locate the VSD refer to Figure 1 for the drive s location on downflow units see Figure 2 for the location on upflow units 3 Remove electrical junction box cover 4 Using Figure 64 locate the small black plastic tab immediately to the right of the wiring connection block of the VFD control 5 Pull the tab to fully extend it disconnecting the EMC filter fr...

Page 91: ...on downflow units see Figure 2 for the location on upflow units 3 Remove inverter assembly Follow instructions in 13 2 4 Electronic Variable Speed Drive Inverter 4 Loosen and remove the screws as shown 1 in Figure 65 and 2 in Figure 65 5 Remove filter 3 in Figure 65 6 Reinsert and tighten the screws removed in Step 4 Figure 65 Figure bb Disconnecting EMC filter for operation with Delta connected p...

Page 92: ... and in good condition with no visible sign of damage or leaks This unit may also require an external water supply to operate Improper installation application and service practices can result in water leakage from the unit Water leakage can result in severe property damage and loss of critical data center equipment Do not locate unit directly above any equipment that could sustain water damage Em...

Page 93: ... DOWNFLOW DS UNIT UPFLOW DS UNIT UNIT INTERNAL DRAIN EXTERNAL DRAIN CONTINUOUS DOWNWARD SLOPE INTERNAL DRAIN UNIT UNIT EXTERNAL DRAIN INCORRECT INTERNAL DRAIN EXTERNAL DRAIN THESE ARE EXTERNAL TRAPS ALSO ALTHOUGH UNINTENTIONAL LINES MUST BE RIGID ENOUGH NOT TO BOW OVER TOP OF OTHER OBJECTS INCORRECT INCORRECT THESE ARE EXTERNAL TRAPS ALSO ALTHOUGH UNINTENTIONAL LINES MUST BE RIGID ENOUGH NOT TO BO...

Page 94: ... proper percentage of glycol and water for the coldest design ambient Automotive antifreeze is unacceptable and must NOT be used in any glycol fluid system NOTICE Risk of corrosion Can cause equipment damage Read and follow individual unit installation instructions for precautions regarding fluid system design material selection and use of field provided devices Liebert systems contain iron and co...

Page 95: ...than 20psig 138kPa can cause premature compressor failure NOTE During leak checking of field installed piping Emerson recommends that the unit be isolated using field installed shutoff valves When the Liebert units are included in a leak test use of fluid for pressure testing is recommended When pressurized gas is used for leak testing the Liebert unit the maximum recommended pressure is 30 psig 2...

Page 96: ...042 053 070 077 105 Equivalent Length Hot Gas Line Liquid Line Hot Gas Line Liquid Line Hot Gas Line Liquid Line Hot Gas Line Liquid Line Hot Gas Line Liquid Line Hot Gas Line Liquid Line Hot Gas Line Liquid Line 50 ft 15m 7 8 1 2 7 8 1 2 7 8 1 2 7 8 5 8 1 1 8 7 8 1 1 8 7 8 1 3 8 7 8 100 ft 30m 7 8 5 8 7 8 5 8 7 8 5 8 1 1 8 7 8 1 1 8 7 8 1 1 8 7 8 1 3 8 7 8 150 ft 45 m 7 8 5 8 7 8 5 8 7 8 5 8 1 1 ...

Page 97: ...d approximate Standard Condenser Models Approximate R 22 Refrigerant Needed Approximate R 407C Refrigerant Needed Dual Circuit lb circuit kg circuit Dual Circuit lb circuit kg circuit FSC or VFD Lee Temp includes receiver FSC or VFD Lee Temp includes receiver 165 5 2 3 27 12 3 5 2 3 26 11 8 205 7 3 2 56 25 3 7 3 2 54 24 4 251 10 4 6 38 17 2 10 4 6 36 16 3 308 11 5 0 58 26 3 11 5 0 55 24 9 415 25 1...

Page 98: ...es and quantities recommended by the compressor manufacturer may reduce compressor life and void the compressor warranty See Table 64 for compressor oil types Do not mix polyolester POE and mineral based oils Do not mix oils of different viscosities Consult Emerson or the compressor manufacturer if questions arise Table 53 Additional oil required per refrigerant charge Model System Charge Per Circ...

Page 99: ...M user manual SL 18835 If unit power is not available a field supplied 24VAC 75VA power source must be directly connected to each of the unit solenoid valves 2 For semi hermetic compressors connect refrigeration gauges to the suction and discharge service valves of both compressors 3 For scroll and digital scroll compressors connect refrigerant gauges to the suction rotalock valves and discharge l...

Page 100: ...arts to rotate at 190 psig 1310 kPA and is full speed at 250 psig 1724 kPA CAUTION Risk of improper refrigerant charging Can cause equipment damage Refrigerant R407C is a blend of three components and must be introduced and charged from the cylinder only as a liquid When adding liquid refrigerant to an operating system it may be necessary to add the refrigerant through the compressor suction servi...

Page 101: ...he unit liquid line solenoid valves using the evacuation function for System 1 and System 2 in the diagnostic section of the Liebert iCOM control If unit power is not available a field supplied 24VAC 75VA power source must be directly connected to each of the unit solenoid valves 2 Attach a jumper hose from the service valve fitting on the outlet of the receiver and the Schrader fitting on the dis...

Page 102: ...mmends connecting a sight glass between the charging hose and the compressor suction service valve This will permit adjustment of the cylinder hand valve so that liquid can leave the cylinder while allowing vapor to enter the compressor 5 Turn on unit disconnect switch Operate the unit for 30 minutes using the charging function for System 1 and System 2 in the diagnostic section of the Liebert iCO...

Page 103: ...d and includes and includes a Paradenser condenser and control valves Table 56 Water Glycol cooled and GLYCOOL suction pressure transducer settings Function R 22 R 407C Gauge Sea Level psiG kPa Absolute psiA kPa Gauge Sea Level psiG kPa Absolute psiA kPa Pump Down Cutout 35 241 50 344 35 241 50 344 Pump Down Reset 65 448 80 552 65 448 80 552 Minimum to Start Cooling 50 345 65 448 50 345 65 448 Low...

Page 104: ... External Equilizer Sensing Bulb Muffler COMPRESSOR Service Valve Muffler HOT GAS DISCHARGE LIQUID RETURN Isolation Valve Isolation Valve Components are not supplied by Emerson but are recommended for proper circuit operation and maintenance Components supplied by Emerson and must be field installed 70kW 77kW 105kW models only NOTES Schematic representation shown Do not use for specific connection...

Page 105: ...lve Service Valve 28 42kW Digital Solenoid Valve SUCTION External Equalizer Sensing Bulb COMPRESSOR Isolation Valve HOT GAS DISCHARGE LIQUID RETURN Filter Drier Sight Glass Solenoid Valve Expansion Valve Isolation Valve Components are not supplied by Emerson but are recommended for proper circuit operation and maintenance NOTES Schematic representation shown Do not use for specific connection loca...

Page 106: ...or Aquastat Sensing Bulb Check Valves on Dual Pump Systems only Flow Switch Supplied with Dual Pump Systems Flow Regulating Valve Supply Return Return Supply Liquid Suction 2 Way Regulating Valve Optional 3 Way Regulating Valve Discharge Liebert DS Unit and associated piping To Second Refrigeration Circuit Service Schrader Access Connection No Valve Core Service Schrader Access Connection With Val...

Page 107: ...ximum 480 PSIG 33 Bar TO SECOND REFRIGERATION CIRCUIT Sensor Optional Factory Piping Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance Field installed at highest point in system on return line to pumps Locate at tops of all risers and any intermediate system high points DPN000896 REV 3 Check Valves on Dual Pump Systems only Gate Valves Pressure...

Page 108: ...on Valve Solenoid Valve Sight Glass PARADENSER CONDENSER TO SECOND REFRIGERATION CIRCUIT 3 Way Regulating Valve Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance Field installed at highest point in system on return line to pumps Locate at tops of all risers and any intermediate system high points Factory Piping Field Piping Service Schrader Acc...

Page 109: ...ansion Valve COMPRESSOR LIQUID SUCTION Sight Glass Solenoid Valve Filter Dryer DPN000898 REV 3 Paradenser Condenser To Second Refrigeration Circuit Hose Bib Hose Bib Shutoff Valve Shutoff Valve Shutoff Valve Shutoff Valve Flow Regulating Valve Flow Switch Supplied with Dual Pump Systems Pressure Port Gate Valves Check Valves on Dual Pump Systems only GLYCOL PUMPS EXPANSION TANK Hose Bib ECON O COI...

Page 110: ...Valve Check Valve Expansion Valve Solenoid Valve Sight Glass Filter Drier Relief valve s supplied with 50 Hz EU CE units rated maximum 480 PSIG 33 Bar Pressure Transducer NOTE TWO REFRIGERATION CIRCUITS PROVIDED SINGLE REFRIGERATION CIRCUIT SHOWN FOR CLARITY TO SECOND REFRIGERATION CIRCUIT Optional 3 Way Motorized Ball Valve Shut Off Valve Shut Off Valve Hose Bib Hose Bib 2 Way Motorized Ball Valv...

Page 111: ...VE CORE SERVICE SCHRADER ACCESS CONNECTION WITH VALVE CORE Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance Field installed at highest point in system on return line to pumps Locate at tops of all risers and any intermediate system high points NOTE SCHEMATIC REPRESENTATION SHOWN THIS SCHEMATIC DOES NOT IMPLY OR DEFINE ELEVATIONS AND COMPONENT ...

Page 112: ...n field supply line Note 1 Place thermistor in location where flow is always present 2 Thermistor must be located out of the supply air stream Factory Piping Field Piping Actuator Return Supply Econ O Coil Optional Econ O Coil 2 Way Valve Return Supply Thermistor Optional Econ O Coil 3 Way Valve Actuator Return Supply Econ O Coil Supply Return Thermistor ...

Page 113: ...Cu Sweat ECR Econ O Coil Return 49 3 8 1254 30 3 4 781 1 5 8 Cu Sweat E1 Electrical Connection High Volt 55 1 2 1410 31 1 4 794 2 1 2 E2 Electrical Connection High Volt 52 7 16 1332 31 1 4 794 2 1 2 LV1 Electrical Connection Low Volt 2 1 4 57 27 686 7 8 LV2 Electrical Connection Low Volt 2 1 4 57 29 737 7 8 LV3 Electrical Connection Low Volt 2 1 4 57 31 787 7 8 B Blower Outlet 21 15 16 558 18 1 16...

Page 114: ...1 5 8 Cu Sweat ECR Econ O Coil Return 49 3 8 1254 30 3 4 781 1 5 8 Cu Sweat E1 Electrical Connection High Volt 55 1 2 1410 31 1 4 794 2 1 2 E2 Electrical Connection High Volt 52 7 16 1332 31 1 4 794 2 1 2 LV1 Electrical Connection Low Volt 2 1 4 57 27 686 7 8 LV2 Electrical Connection Low Volt 2 1 4 57 29 737 7 8 LV3 Electrical Connection Low Volt 2 1 4 57 31 787 7 8 B Blower Outlet 21 15 16 557 1...

Page 115: ...n 49 13 16 1265 28 1 2 724 1 5 8 Cu Sweat E1 Electrical Conn High Volt 55 1 2 1410 31 1 4 794 2 1 2 E2 Electrical Conn High Volt 52 7 16 1332 31 1 4 794 2 1 2 LV1 Electrical Conn Low Volt 2 1 4 57 27 686 7 8 LV2 Electrical Conn Low Volt 2 1 4 57 29 737 7 8 LV3 Electrical Conn Low Volt 2 1 4 57 31 787 7 8 B Blower Outlet 21 15 16 557 18 1 16 459 18 3 4 x 16 1 16 476 x 408 Field pitch condensate dra...

Page 116: ...2 E2 Electrical Conn High Volt 75 3 8 1915 31 1 8 790 2 1 2 LV1 Electrical Conn Low Volt 1 7 8 48 28 1 2 724 7 8 LV2 Electrical Conn Low Volt 1 7 8 48 30 1 4 768 7 8 LV3 Electrical Conn Low Volt 1 7 8 48 32 813 7 8 B1 Blower Outlet 15 x 15 23 1 8 587 18 1 16 459 18 3 4 x 16 1 16 476 x 408 Blower Outlet 15 x 11 27 3 4 705 18 1 16 459 14 3 4 x 16 1 16 375 x 408 B2 Blower Outlet 15 x 15 50 3 8 1280 1...

Page 117: ...Coil Return 73 15 16 1862 26 9 16 675 2 1 8 Cu Sweat HS Hot Water Reheat Supply CONSULT FACTORY HR Hot Water Reheat Return CONSULT FACTORY E1 Electrical Conn High Volt 78 1 2 1994 31 1 8 790 2 1 2 E2 Electrical Conn High Volt 75 3 8 1915 31 1 8 790 2 1 LV1 Electrical Conn Low Volt 2 51 29 737 7 8 LV2 Electrical Conn Low Volt 2 51 30 7 8 784 7 8 LV3 Electrical Conn Low Volt 2 51 32 813 7 8 Field pi...

Page 118: ... 2 1 2 E2 Electrical Conn High Volt 75 3 8 1915 31 1 8 790 2 1 2 LV1 Electrical Conn Low Volt 1 7 8 48 28 1 2 724 7 8 LV2 Electrical Conn Low Volt 1 7 8 48 30 1 4 768 7 8 LV3 Electrical Conn Low Volt 1 7 8 48 32 813 7 8 B1 Blower Outlet 15 x 15 23 1 8 587 18 1 16 459 18 3 4 x 16 1 16 476 x 408 Blower Outlet 15 x 11 27 3 4 705 18 1 16 459 14 3 4 x 16 1 16 375 x 408 B2 Blower Outlet 15 x 15 50 3 8 1...

Page 119: ... 9 16 675 2 1 8 Cu Sweat HS Hot Water Reheat Supply CONSULT FACTORY HR Hot Water Reheat Return CONSULT FACTORY E1 Electrical Conn High Volt 78 1 2 1994 31 1 8 790 2 1 2 E2 Electrical Conn High Volt 75 3 8 1915 31 1 8 790 2 1 2 LV1 Electrical Conn Low Volt 2 51 29 737 7 8 LV2 Electrical Conn Low Volt 2 51 30 7 8 784 7 8 LV3 Electrical Conn Low Volt 2 51 32 813 7 8 B1 Blower Outlet 4 1 2 114 33 838 ...

Page 120: ...cal Conn Low Volt 1 7 8 48 28 1 2 724 7 8 LV2 Electrical Conn Low Volt 1 7 8 48 30 1 4 768 7 8 LV3 Electrical Conn Low Volt 1 7 8 48 32 813 7 8 B1 Blower Outlet 15 x 15 23 1 8 587 18 1 16 459 18 3 4 x 16 1 16 476 x 408 Blower Outlet 15 x 11 27 3 4 705 18 1 16 459 14 3 4 x 16 1 16 375 x 408 B2 Blower Outlet 15 x 15 50 3 8 1280 18 1 16 459 18 3 4 x 16 1 16 476 x 408 Blower Outlet 15 x 11 54 3 8 1381...

Page 121: ...Water Reheat Return CONSULT FACTORY E1 Electrical Conn High Volt 78 1 2 1994 31 1 8 790 2 1 2 E2 Electrical Conn High Volt 75 3 8 1915 31 1 8 790 2 1 2 LV1 Electrical Conn Low Volt 2 51 29 737 7 8 LV2 Electrical Conn Low Volt 2 51 30 7 8 784 7 8 LV3 Electrical Conn Low Volt 2 51 32 813 7 8 B1 Blower Outlet 4 1 2 114 33 838 58 3 8 x 30 1483 x 762 Field pitch condensate drain line a minimum of 1 8 3...

Page 122: ...olt 98 1 8 2492 31 1 4 794 2 1 2 E2 Electrical Conn High Volt 91 2311 31 1 4 794 2 1 2 LV1 Electrical Conn Low Volt 2 51 28 1 4 718 7 8 LV2 Electrical Conn Low Volt 2 51 30 1 4 768 7 8 LV3 Electrical Conn Low Volt 2 51 32 813 7 8 B1 Blower Outlet 27 7 8 708 18 457 14 1 2 x 15 11 16 368 x 398 B2 Blower Outlet 52 1 16 1322 18 457 14 1 2 x 15 11 16 368 x 398 B3 Blower Outlet 76 1 4 1937 18 457 14 1 2...

Page 123: ... Water Reheat Supply CONSULT FACTORY HR Hot Water Reheat Return CONSULT FACTORY E1 Electrical Conn High Volt 98 1 8 2492 31 788 2 1 2 E2 Electrical Conn High Volt 91 2311 31 788 2 1 2 LV1 Electrical Conn Low Volt 2 51 29 737 7 8 LV2 Electrical Conn Low Volt 2 51 30 7 8 784 7 8 LV3 Electrical Conn Low Volt 2 51 32 813 7 8 B1 Blower Outlet 4 1 2 114 33 838 77 3 8 x 30 1965 x 762 Field pitch condensa...

Page 124: ...nn High Volt 88 7 16 2246 30 762 2 1 2 LV1 Electrical Conn Low Volt 2 51 27 1 2 796 7 8 LV2 Electrical Conn Low Volt 2 51 30 1 4 768 7 8 LV3 Electrical Conn Low Volt 2 51 32 813 7 8 B1 Blower Outlet 28 1 4 718 18 457 14 1 2 x 15 7 8 368 x 403 B2 Blower Outlet 52 1321 18 457 14 1 2 x 15 7 8 368 x 403 B3 Blower Outlet 75 11 16 1922 18 457 14 1 2 x 15 7 8 368 x 403 Field pitch condensate drain line a...

Page 125: ... Hot Water Reheat Return CONSULT FACTORY E1 Electrical Conn High Volt 98 1 8 2492 31 788 2 1 2 E2 Electrical Conn High Volt 91 2311 31 788 2 1 2 LV1 Electrical Conn Low Volt 2 51 29 737 7 8 LV2 Electrical Conn Low Volt 2 51 30 7 8 784 7 8 LV3 Electrical Conn Low Volt 2 51 32 813 7 8 B1 Blower Outlet 4 1 2 114 33 838 77 3 8 x 30 1965 x 762 Field pitch condensate drain line a minimum of 1 8 3 2 mm p...

Page 126: ...62 2 1 2 E2 Electrical Connection High Voltage 46 7 8 1191 30 762 2 1 2 LV1 Electrical Connection Low Voltage 19 1 2 495 29 1 16 738 7 8 LV2 Electrical Connection Low Voltage 19 1 2 495 30 1 2 775 7 8 LV3 Electrical Connection Low Voltage 19 1 2 495 31 15 16 811 7 8 Field pitch condensate drain line a minimum of 1 8 3 2 mm per foot 305 mm All units contain a factory installed condensate trap Do no...

Page 127: ...n High Volt 46 7 8 1191 30 762 2 1 2 LV1 Electrical Conn Low Volt 19 1 2 495 29 1 16 738 7 8 LV2 Electrical Conn Low Volt 19 1 2 495 30 1 2 775 7 8 LV3 Electrical Conn Low Volt 19 1 2 495 31 15 16 811 7 8 Field pitch condensate drain line a minimum of 1 8 3 2 mm per foot 305 mm All units contain a factory installed condensate trap Do not trap external to the unit Drain line may contain boiling wat...

Page 128: ...1 Electrical Connection Low Voltage 19 1 2 495 29 1 16 738 7 8 LV2 Electrical Connection Low Voltage 19 1 2 495 30 1 2 775 7 8 LV3 Electrical Connection Low Voltage 19 1 2 495 31 15 16 811 7 8 Field pitch condensate drain line a minimum of 1 8 3 2 mm per foot 305 mm All units contain a factory installed condensate trap Do not trap external to the unit Drain line may contain boiling water Select ap...

Page 129: ...Low Voltage 19 1 2 495 30 1 2 775 7 8 LV3 Electrical Connection Low Voltage 19 1 2 495 31 15 16 811 7 8 Field pitch condensate drain line a minimum of 1 8 3 2 mm per foot 305 mm All units contain a factory installed condensate trap Do not trap external to the unit Drain line may contain boiling water Select appropriate drain system materials The drain line must comply with all local codes Supplied...

Page 130: ...1915 30 762 2 1 2 E2 Electrical Connection High Voltage 69 7 8 1775 30 762 2 1 2 LV1 Electrical Connection Low Voltage 19 1 2 495 29 1 16 738 7 8 LV2 Electrical Connection Low Voltage 19 1 2 495 30 1 2 775 7 8 LV3 Electrical Connection Low Voltage 19 1 2 495 31 15 16 811 7 8 Field pitch condensate drain line a minimum of 1 8 3 2 mm per foot 305 mm All units contain a factory installed condensate t...

Page 131: ...69 7 8 1775 30 762 2 1 2 LV1 Electrical Connection Low Voltage 19 1 2 495 29 1 16 738 7 8 LV2 Electrical Connection Low Voltage 19 1 2 495 30 1 2 775 7 8 LV3 Electrical Connection Low Voltage 19 1 2 495 31 15 16 811 7 8 Field pitch condensate drain line a minimum of 1 8 3 2 mm per foot 305 mm All units contain a factory installed condensate trap Do not trap external to the unit Drain line may cont...

Page 132: ...362 30 762 2 1 2 LV1 Electrical Conn Low Volt 41 1 8 1045 30 3 8 772 7 8 LV2 Electrical Conn Low Volt 38 7 8 987 30 3 8 772 7 8 LV3 Electrical Conn Low Volt 35 1 8 892 30 3 8 772 7 8 LV4 Electrical Conn Low Volt 31 5 8 803 30 3 8 772 7 8 Field pitch condensate drain line a minimum of 1 8 3 2 mm per foot 305 mm All units contain a factory installed condensate trap Do not trap external to the unit D...

Page 133: ... Volt 93 2362 30 762 2 1 2 LV1 Electrical Conn Low Volt 41 1 8 1045 30 3 8 772 7 8 LV2 Electrical Conn Low Volt 38 7 8 987 30 3 8 772 7 8 LV3 Electrical Conn Low Volt 35 1 8 892 30 3 8 772 7 8 LV4 Electrical Conn Low Volt 31 5 8 803 30 3 8 772 7 8 Field pitch condensate drain line a minimum of 1 8 3 2 mm per foot 305 mm All units contain a factory installed condensate trap Do not trap external to ...

Page 134: ...and compressors scroll only for proper rotation ___ 10 Upflow units only Field installed low volt wiring routed with loop to allow electric box to swing ___ 11 For units with variable speed drive VSD operating on Delta connected power ensure that the EMC filter has been disconnected see 8 1 Variable Speed Drive for details ___ 12 Check for loose electrical connections on steam generating humidifie...

Page 135: ...ed on user requirements ___ 6 Blower drive system rotates freely and belts are properly aligned and tensioned ___ 7 Compressor shipping blocks removed and springs adjusted see 5 3 Semi Hermetic Compressor Spring Isolation System ___ 8 Remove rubber band from float in optional infrared humidifier ___ 9 Seal openings around piping and electrical connections ___ 10 Installation materials and tools ha...

Page 136: ...bert DS warranty startup procedures includes the following steps These steps must be completed to validate warranty WARNING Risk of electric shock Can cause injury or death Disconnect local and remote power supplies before working within Before proceeding with installation read all instructions verify that all the parts are included and check the nameplate to be sure the voltage matches available ...

Page 137: ...nnection ___ 3 Check unit belts for correct tension and alignment ___ 4 Check unit electrical connections including and Mate N Loc connections to the control boards and tighten or secure if needed ___ 5 Remove all debris tools and documents from unit area 12 2 1 Inspect and Record Main Fan hp _________________________ Voltage _________________________ Proper Belt Tension and Alignment ____________...

Page 138: ...losure 12 Decrease humidity setpoint to call for dehumidification Check for valve travel in dehumidification mode 13 Decrease temperature setpoint to energize compressor s Check and record compressor amps 1 L1 _____________ L2 _____________ L3 _____________ Fuse _____________ 2 L1 _____________ L2 _____________ L3 _____________ 14 Check compressor operating pressure and record Check digital compre...

Page 139: ...er to less than 100 will cause the coil to freeze on DX units will overheat the reheat components on any unit and cause condensation problems on any unit equipped with a humidifier 8 Turn Off the unit with the On Off button 9 Remove power from main unit disconnect and main breaker and check with a meter 10 Replace all fuses removed in Step 2 11 Restore power to the unit 12 Turn On the main unit di...

Page 140: ...operation costs and maximizing product life Read and follow monthly and semi annual maintenance schedules included in this manual These MINIMUM maintenance intervals may need to be more frequent based on site specific conditions See the Liebert iCOM user manual SL 18835 for instructions on how to utilize the unit controller to predict some service maintenance intervals Emerson recommends the use o...

Page 141: ...erson representative to order replacement filters Table 59 Filter quantities downflow units Unit Size Filter Size Width x Length Filter Quantities 4 Filter Option Merv 8 or Merv 11 2 Primary 2 Pre Filter Option Merv 11 Primary Filter Merv 7 Pre Filter DS 028 035 042 16 x 25 5 5 5 DS 053 070 077 7 7 7 DS 105 9 9 9 Table 60 Filter quantities upflow units Upflow Models Filter Size Width x Length Filt...

Page 142: ...ion of the airflow see Figure 97 4 Test the operation of the filter clog switch The unit panels must be in place and closed to find this point 5 Start the blower and turn the switch counterclockwise until the alarm is energized 6 Turn the adjusting knob one turn clockwise or to the desired filter change point Figure 97 Proper filter pleat direction 13 2 Blower Drive System Centrifugal Fans Blower ...

Page 143: ... volt electric box to the sheet metal shoulder 4 Swing open low voltage electric box to gain access to the motor Figure 98 Upflow motor access 13 2 2 Belt Removal 1 Disconnect power to unit Do not pry the belts off sheave or pulley 2 Refer to instruction labels on unit near motor base 3 Turn adjustment nut see Figure 99 counterclockwise left to loosen belts and bring motor base internal spring out...

Page 144: ...l spring for proper belt tension no readjustments necessary Figure 99 Auto belt tensioning motor base Blower Bearing Maintenance Field lubrication is NOT required for the life of the bearing Bearings are permanently sealed and self lubricating and cannot be greased Blower Bearing Inspection 1 Disconnect power to unit 2 Remove drive belts see 13 2 2 Belt Removal 3 Inspect bearing for tightness of s...

Page 145: ...rom the sheet metal bracket 7 Install the new VSD on the sheet metal bracket 8 Reconnect wires to the VSD 9 Reinstall the VSD sheet metal cover 10 Re mount the VSD on the unit shoulder or on the unit floor 11 Reinstall the right panel 12 Engage power to the unit disconnect 13 3 Blower Drive System EC Fans 13 3 1 Fan Impellers and Bearings Fan impellers should be periodically inspected and any debr...

Page 146: ...turn unit OFF at Liebert iCOM control 4 Pull out the humidifier standpipe in pan 5 Inspect the O ring replace if necessary 6 Let the pan drain and condensate pump operate if applicable 7 Disconnect power from the unit 8 Disconnect the drain coupling from the bottom of the pan 9 Remove the thermostat from the bottom of the pan and the retaining screws from the sides of the pan 10 Slide the pan out ...

Page 147: ... lamps 7 Loosen two screws securing lamp lead wires to junction block 8 Pull bulb straight down and discard 9 Wrap lead wires once around new lamp s metal ends This will support lamp and allow for thermal expansion Insert lead wires into junction block and torque screws to 30 in lb 10 Reassemble by reversing Steps 1 through 9 Figure 101Infrared humidifier lamps NOTE Touching quartz lamps with bare...

Page 148: ... proceeding with installation read all instructions verify that all the parts are included and check the nameplate to be sure the voltage matches available utility power Follow all local codes WARNING Risk of improper wiring piping moving lifting and handling Can cause equipment damage injury or death Only properly trained and qualified service personnel should work on this equipment Read all inst...

Page 149: ...up to remove the plugs from the pins 6 Use slotted screwdriver to loosen the steam hose clamp s 7 Disconnect the steam hose by pulling it straight up 8 Loosen reversible cylinder zip tie 9 The cylinder is now ready to be lifted out of the unit Figure 103Removing the old canister WARNING Risk of humidifier canister meltdown smoke and fire Can cause fire suppression system activation fire and smoke ...

Page 150: ...aning 6 Remove the snap fit red cap from the coil assembly and slide the coil off the actuator 7 Loosen actuator using a wrench and unscrew from the plastic body 8 Clean the exposed core spring and plastic drain valve pot 9 Reinstall in the reverse order 10 Hand tighten the actuator back into place then secure it by using a wrench to turn it a quarter of a turn 11 Clean out the end of the hose the...

Page 151: ...e 105 3 Ensure that cylinder plugs are snug on the pins Replace any loose fitting plugs as these may result in hazardous operation Figure 105Canister plugs WARNING Risk of humidifier canister meltdown smoke and fire Can cause fire suppression system activation fire and smoke alarm activation equipment or serious building damage injury and death Check steam generating humidifier electrode plugs to ...

Page 152: ...linder Color coding Low water conductivity Three flashes in sequence Off No current detected with high water sensor activated Check L1 to ensure that power is properly connected Check that L1 wire runs through CT of main PCB Cylinder may be defective check for conductivity between powered pins and H W S should be an opened circuit Ensure all legs are drawing similar current Low water conductivity ...

Page 153: ... iCOM control Disconnect local and remote power supplies before working within J18 J19 J17 J20 J16 J21 J15 J22 J14 J13 J12 J11 P11 1 1 P12 J1 J2 J3 J4 J5 J6 J7 Current Transformer J23 J10 J8 J9 J25 J26 J24 200V 208V J6 J9 J15 J17 J19 J10 J23 P11 pin 2 3 230V J5 J9 J15 J17 J19 J10 J23 P11 pin 2 3 380V 415V J3 J8 J15 J17 J19 J10 J23 P11 pin 2 3 460V J2 J8 J15 J17 J19 J10 J23 P11 pin 2 3 575V J1 J8 J...

Page 154: ... setting is between 10 and 20 F 12 and 6 C If too little refrigerant is being fed to the evaporator the superheat will be high if too much refrigerant is being supplied the superheat will be low 13 9 1 Determine Suction Superheat To determine superheat 1 Measure the temperature of the suction line at the point the TEV bulb is clamped 2 Obtain the gauge pressure at the compressor suction valve 3 Ad...

Page 155: ...st five minutes before viewing the oil level If oil level is low the cause must be corrected and oil level returned to its proper level 13 10 3Scroll and Digital Scroll Compressors Hermetic scroll and digital scroll compressors do not have an oil sight glass 13 11 Compressor Replacement Replacement compressors are available through your local Emerson office Compressors are shipped in reusable pack...

Page 156: ...ing solenoid 9 Evacuate charge and operate per 9 3 Dehydration Leak Test and Charging Procedures for R 407C and R 22 10 Semi hermetic only see 5 3 Semi Hermetic Compressor Spring Isolation System for compressor spring adjustment NOTICE Risk of improper component reinstallation Can cause equipment damage Identify and mark location of suction pressure transducer and discharge pressure switch These d...

Page 157: ... and torque using drag link socket to 25 ft lb 12 Leak check fluid system refer to Leak Checking of Unit and Field Piping on page 85 13 Bleed system using Schrader ports near the top of the Paradenser 14 Ensure that condensing fluid isolation valves are fully open 15 Unit is ready to be put on line 13 14 Water Glycol Control Valves 13 14 1Regulating Valves Semi Hermetic and Standard Scroll Compres...

Page 158: ... the pressure falls below the lower threshold the valve closes There are multiple adjustment bands to ease discharge pressure back into control range Adjustment Both pressure thresholds can be shifted simultaneously over a 50 PSI 345 kPa range the 35 PSI 241 kPa differential remains constant The ball valve setpoint offset parameter in the Service menu can be adjusted from 0 to 50 PSI 345 kPa to ra...

Page 159: ...Setting Glycol see Notes 1 and 2 Optional Setting GLYCOOL see Note 3 AQ1 F1 65 F 18 3 C 35 F 1 7 C AQ2 F2 F3 75 F 23 9 C 45 F 7 2 C AQ3 F4 70 F 21 1 C 40 F 4 4 C Table 68 Aquastat settings six fan drycoolers Dial Setting Stat Open Temp Set for Mid Differential 8 F 4 4 C Rise to Close Aquastat Fans Stat Location Cabinet Factory Setting Glycol see Notes 1 and 2 Optional Setting GLYCOOL see Note 3 AQ...

Page 160: ...fier ___ 1 Check drain valve drain lines trap for clogs ___ 2 Check water make up valve and all hoses for leaks ___ 3 Clean the fill strainer ___ 4 Replace humidifier bottle if necessary ___ 5 Check operation of humidifier ___ 6 Humidifier amp draw L1 ______________ L2 _______________L3 __________________ Infrared Humidifier ___ 1 Check drain lines and trap for clogs ___ 2 Check clean pan for mine...

Page 161: ...vel ___ 2 Check for oil leaks ___ 3 Check compressor mounts springs bushings ___ 4 Cap tubes not rubbing ___ 5 Check wire connections inside compressor box ___ 6 Compressor operation vibration noise ___ 7 Suction Pressure Circuit 1 __________________ Circuit 2 ______________________ ___ 8 Discharge Pressure Circuit 1 __________________ Circuit 2 ______________________ ___ 9 Superheat Circuit 1 ___...

Page 162: ...n support and secure as necessary ___ 5 Check fuses ___ 6 Check contactors for pitting ___ 7 Check wire connections ___ 8 Fan speed control operation ___ 9 Check operational sequence thermostat setpoints ___ 10 Check refrigerant glycol lines for signs of leaks repair leaks as found ___ 11 Check refrigerant level in each Liebert Lee Temp receiver ___ 12 Glycol level ___ 13 Glycol solution__________...

Page 163: ..._____________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ___________________________________________________________________________...

Page 164: ...HVAC Maintenance Checklist 154 NOTES ...

Page 165: ...HVAC Maintenance Checklist 155 ...

Page 166: ...HVAC Maintenance Checklist 156 ...

Page 167: ...ante declara por este meio que este produto quando ostenta a marca CE está em conformidade com as directivas da União Europeia Tillverkaren tillkännager härmed att den här produkten när den är CE märkt överensstämmer med EU s direktiv De fabrikant verklaart hierbij dat dit product indien het van de CE markering is voorzien conform de EU richtlijnen is Valmistaja vakuuttaa täten että mikäli tuottee...

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