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IM 738-2

53

Electrical Installation:

Field Power Wiring

Figure 65. Typical power wire entrance, unit view—RPS 015C to 040Cshown (actual opening shown on submittal
documents)

All Units

The minimum circuit ampacity (wire sizing amps) is shown on
the unit nameplate. Refer to Table 22 on page 54 for the
recommended number of power wires.

Copper wire is required for all conductors. Size wires in
accordance with the ampacity tables in Article 310 of the
National Electrical Code. If long wires are required, it may be
necessary to increase the wire size to prevent excessive voltage
drop. Wires should be sized for a maximum of 3% voltage
drop. Supply voltage must not vary by more than 10% of
nameplate. Phase voltage imbalance must not exceed 2%.
(Calculate the average voltage of the three legs. The leg with
voltage deviating the farthest from the average value must not

be more than 2% away.) Contact the local power company for
correction of improper voltage or phase imbalance.

A ground lug is provided in the control panel for each
disconnect or power block. Size grounding conductor in
accordance with Table 250-95 of the National Electrical Code.

Detail B

12.0

8.8

3.8

0.9 Dia. K.O.

(Qty 4)

3.0 Dia. K.O.
(Qty 3)

6.8

7.6

6.6

Varies

based on

options

Reference from leaving
air end of section

Bottom return
opening

86.5

76.0

3.8

10.0

6.0

20.0

Supply air opening

1.50 MPT drain

A

10.0

3.8

C

B

C

E

3.8

94.0

11.9

12.9

22.3

17.7

15.3

24.3

CAUTION

Provide proper line voltage and phase balance.
Improper line voltage or excessive phase imbalance constitutes
product abuse. It can cause severe damage to the unit's
electrical components.

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Содержание RDT-135c

Страница 1: ...RoofPak Singlezone Roof Mounted Heating and Cooling Units RPS RDT RFS RCS 015 135C Installation and Maintenance Manual IM 738 2 Group Applied Air Systems Part Number IM 738 Date October 2018...

Страница 2: ...Clock 90 Smoke and Fire Protection 90 Freeze Protection 91 Entering Fan Temperature Sensor 91 Duct High Pressure Limit 91 MicroTech II Remote User Interface UI 92 Variable Frequency Drive Operation 93...

Страница 3: ...mation on the optional forced draft gas fired furnace refer to Bulletin No IM 684 or IM 685 The MicroTech II applied rooftop unit controller is available on C vintage applied rooftop units For a detai...

Страница 4: ...mation only See the project s certified submittals for actual specific dimensions and locations Figure 3 Typical component locations RPS units R P S R D T R F S R S Evaporator coil Power and control e...

Страница 5: ...air opening Filter section Optional outside return air dampers Power entrances 3 dia K O Control entrances 7 8 dia K O Bottom return opening 1 50 MPT drain Bottom supply air opening Outside air louve...

Страница 6: ...each unit size Table 2 Condenser fan arrangement Unit size Refrigerant circuit Arrangement Unit size Refrigerant circuit Arrangement 015C 018C 020C 1 or 2 075C 080C 090C 1 2 025C 030C 1 or 2 105C 1 2...

Страница 7: ...shutoff valve F Filter drier G Liquid line solenoid valve H Sightglass I Liquid line J Suction line K Thermal expansion valve L Distributor M Hot gas bypass and solenoid valve optional N Hot gas bypa...

Страница 8: ...tion Piping Figure 7 Condenser piping four reciprocating compressors 115 to 135C Legend 1 Discharge Line Service Valve 2 Discharge Muffler 3 High Pressure Relief Valve 4 Liquid Line Manual Shut off Va...

Страница 9: ...valve optional 5 Thermostatic expansion valve 6 Distributor Liquid line circuit 1 2 1 Liquid line circuit 2 1 Suction line circuit 1 circuit 2 Optional hot gas bypass line circuit 1 circuit 2 4 Conde...

Страница 10: ...the wiring diagram legend which is included in Wiring Diagrams on page 62 Figure 10 Control locations RPS units Return air economizer Filter section Supply fan Heat DX section Discharge plenum section...

Страница 11: ...section Condenser C19 20 RAT LT11 optional S11 REC11 SD2 RAE ACT3 PC5 OAE VM1 LT10 optional DAT OAT SV1 2 SC11 21 optional C11 21 optional optional HP3 4 optional HTR3 4 optional section section secti...

Страница 12: ...cific unit configurations may differ slightly from these figures depending on the particular unit options See Wiring Diagrams on page 62 for the legend and component description Figure 12 Control pane...

Страница 13: ...IM 738 2 11 Introduction Control Panel Figure 13 Typical main control panel 015 to 040 460 volt See separate detail page 17...

Страница 14: ...12 IM 738 2 Introduction Control Panel Figure 14 Typical main control panel 045 to 075 460 volt See separate detail page 17...

Страница 15: ...IM 738 2 13 Introduction Control Panel Figure 15 Typical main control panel 080 to 135 460 volt...

Страница 16: ...l Panel Figure 16 Typical gas heat panel 1000 MBH Figure 17 Typical propeller exhaust panel three fans 460 volt Figure 18 VFD bypass panel 40 HP 460 volt S3 FSG FSG Time LS1 LS2 AS IT TD10 R22 R20 R23...

Страница 17: ...5 Introduction Control Panel Figure 19 RCS control panel with MicroTech II 015 to 040C Figure 20 RCS control panel with MicroTech II RPS 045 to 075C Figure 21 RCS control panel with MicroTech II RPS 0...

Страница 18: ...t panel sizes 45 to 75C Figure 24 Electric heat panel sizes 80 to 135 M41 M42 M41 M33 M32 M31 FB33 FB32 FB31 FB43 FB42 FB41 PB3 SR2 SR3 SR1 TB11 GLG3 DS3 M41 M43 FB41 FB42 FB43 H53 TB11 M31 M32 M33 FB...

Страница 19: ...ol Panel Figure 25 Harness plug connector detail LT OP1 LT OP2 LT11 LT10 COMP6 COMP5 COMP3 COMP4 COMP1 COMP2 DFRH DFLH OPEN4 SD1 SD2 GSHT1 GSHT2 HL22 OPEN3 OAE PC7 PC5 ACT3 OPEN2 SV12 SV56 AFD10 AFD20...

Страница 20: ...4 High pressure control Stops compressor when refrigerant discharge pressure is too high Manual relay latched Compressor See page 117 N A 100 psi 689 kPa 047356120 LP1 2 Low pressure control Stops com...

Страница 21: ...onverts static pressure signals to voltage signals N A Main control box N A 0 5 w c 0 1245 4 Pa 1 6 VDC out N A 049545007 SPS2 Static pressure sensor duct 2 Converts static pressure signals to voltage...

Страница 22: ...RDT RPR Degrees Farenheit B05 B06 B07 B08 Setpoint Differential Setpoint Differential Setpoint Differential Setpoint Differential 015 to 020C 0 5 60 5 025 to 030C 0 5 65 5 036 0 5 70 5 045 to 045C 0...

Страница 23: ...n it when received All units should be carefully inspected for damage when received Report all shipping damage to the carrier and file a claim In most cases equipment is shipped F O B factory and clai...

Страница 24: ...ear exhaust vents or other sources of contaminated air If the unit is installed where windy conditions are common install wind screens around the unit maintaining the clearances specified see Figure 2...

Страница 25: ...3 Bolt curbing parts together using fasteners provided Tighten all bolts finger tight 4 Square entire curbing assembly and securely tighten all bolts 5 Position curb assembly over roof openings Curb m...

Страница 26: ...t equal Main 5 9 4 3 7 2 1 8 6 1 Unit Base 2 Curb Gasketing 3 2 x 4 Nailer Strip 4 Galvanized Curb 5 Cant Strip not furnished 6 Roofing Material not furnished 7 Rigid Insulation not furnished 8 Counte...

Страница 27: ...ower wire entrance curb view RPS RFS 015C to 040C shown see project certified drawings Unit length minus 6 4 12 1 See Detail A Detail A 3 4 5 1 0 9 Dia K O 3 0 Dia K O 4 6 4 8 2 0 2 1 4 3 3 1 9 7 E 8...

Страница 28: ...the unit to prevent flooding of the equipment 4 Provide adequate protection from vandalism mechanical contact etc 5 Securely close the doors 6 If there are isolation dampers make sure they are proper...

Страница 29: ...X Outdoor return air section length refer to Table 8for this dimension Y Refer to Table 9 for this dimension see Figure 33 and Figure 34 If A 288 7315 mm 4 point lifting is sufficient If A 288 7315 mm...

Страница 30: ...t type RCS Figure 36 Unit type RCS or condenser section from RPS RDT factory split at condenser A Z X 4 L i f t i n g P o i n t s Y 0 A 4 L i f t i n g P o i n t s 0 0 0 A M i n 9 8 6 m m A 4 L i f t...

Страница 31: ...if a packaged RPS unit is desired but cannot go to the job site because of shipping length or weight limitations A single nameplate is attached to the air handler section and power is fed to both sect...

Страница 32: ...2 Remove screws on fan panel leaving retainer clips in place to secure bulkhead Save screws for Phase II Step5 3 Remove plywood and retaining angles from unit and discard 4 Carefully lower both secti...

Страница 33: ...e cap 3 Caulk watertight vertical seam 4 Install 10 screws provided 5 Install screws 25 20 75 removed in Phase I Step 6 Install splice cover provided Figure 39 Reassemble cabinet 7 Reinstall top cap s...

Страница 34: ...ss length from the external raceway on the DX side of the split then route along the raceway through the bushed hole in the fan section and into the junction box where control wiring terminal blocks a...

Страница 35: ...ir handler is installed remove lifting bracket and adjacent bolts on air handler unit see Figure 42 and save for step 7 Discard lifting bracket If unit is post and rail mounted on a structural beam th...

Страница 36: ...l c o n d e n s e r s u p p o r t o n m a i n u n i t a s s h o w n w i t h b o l t s s a v e d f r o m s t e p t y p b o t h s i d e s o f u n i t f i l l u n u s e d h o l e s i n u n i t b a s e w...

Страница 37: ...1 See Figure 45 11 Caulk watertight ends of splice cap and vertical seam See Figure 45 12 Install 1 2 bolt removed in Step 5 See Figure 45 13 Install splice cover provided see Figure 45 Figure 45 Caul...

Страница 38: ...2 charge and the DX coil charge Figure 46 RFS RCS 015 to 030 refrigerant piping connections Note RFS units with front discharge do NOT include refrigerant piping to the DX coil Field piping is require...

Страница 39: ...n locations 045C 050C to 075C 080C to 90C 105C to 135C RPS split and RFS 045 to 075C RCS 045 to 075C 080 to 135C X in Y in X in Y in X in Y in S1 Suction line Ckt 1 1 5 8 2 1 8 2 1 8 2 5 8 11 7 5 2 21...

Страница 40: ...nduit on the bulkhead of the air handler section see Figure 49 4 Terminate the conduit to the vertical raceway in the condenser section see Figure 50 5 Wire nut the ends of the two harnesses together...

Страница 41: ...line shutoff valves Make sure manual valves are not back seated to shut off the gauge ports RFS Vent to atmosphere by cutting off the process tubes on the suction line caps The RFS unit does not have...

Страница 42: ...rigerant sensors or protective devices see Refrigerant Charge on page 43 for an important warning to prevent an abrupt loss of the entire charge CAUTION To service liquid line components the manual sh...

Страница 43: ...Condenser pumpdown capacity lbs RPS RDT DX S DX L Circuit 1 Circuit 2 Circuit 1 Circuit 2 045C 31 30 31 26 2 3 103 050C 31 30 32 31 2 3 2 8 103 060C 32 31 32 31 2 3 2 8 103 070C 36 36 37 37 2 3 2 8 12...

Страница 44: ...ire cylinder is to be charged into the system Refer to charging instructions provided by the refrigerant manufacturer 5 After 75 of the required charge enters the condenser reconnect the refrigerant d...

Страница 45: ...gs will not be accurate and the potential exists for over or undercharging of the refrigerant circuit Refrigeration Service Valves The unit is shipped with all refrigeration service valves closed RDT...

Страница 46: ...have some moisture in them algae etc will grow Periodically clean to prevent this buildup from plugging the drain and causing the drain pan to overflow Clean drain pans to prevent the spread of disea...

Страница 47: ...me NPT size as the valve with female threading see Figure 56 on page 46 Refer to the certified drawings for the recommended piping entrance locations All piping penetrations must be sealed to prevent...

Страница 48: ...e required pressure differential will always be available Do not undersize 2 Float and thermostatic or bucket traps are recommended for low pressure steam Use bucket traps on systems with on off contr...

Страница 49: ...is set so that the crankarm moves through a 90 degree angle to bring the economizer dampers from full open to full close see Figure 57 Access to the actuator and linkage is from the filler section Mec...

Страница 50: ...operation providing fresh air quantities from 0 to 30 of the total system airflow depending on the damper setting This setting is made at the linkage rod on units with manually adjustable linkages On...

Страница 51: ...nd SMACNA recommendations and local building codes Installing Ductwork On bottom supply bottom return units if a Daikin roof curb is not used installing contractor should make an airtight connection b...

Страница 52: ...t several duct diameters away from take off points bends neckdowns attenuators vanes or other irregularities 5 Use a static pressure tip Dwyer A302 or equivalent or the bare end of the plastic tubing...

Страница 53: ...it is not affected by snow Not connecting the reference tap to the sensor results in unsatisfactory operation 6 Use an outdoor static pressure tip Dwyer A306 or equivalent to minimize the adverse effe...

Страница 54: ...be turned off to open the main control panel door However the door can be opened without disconnecting power by following the procedure covered on page 119 If this is done use caution since power is n...

Страница 55: ...imbalance must not exceed 2 Calculate the average voltage of the three legs The leg with voltage deviating the farthest from the average value must not be more than 2 away Contact the local power comp...

Страница 56: ...ry field to cut larger holes as required for power wire Conduit and hub shipped with RCS unit Terminal block TB8 for 115V service receptical circuit 7 8 knockout for TB8 wire entry switch DS4 or disco...

Страница 57: ...control signals from the RFS unit Two 7 8 knockouts are provided in the right side of the RCS control box Interconnecting wiring enters the RFSunit through 7 8 knockouts in the bottom of the main con...

Страница 58: ...than at the motor end When the fan is operating against a static pressure it should run level If not level the assembly as follows see Figure 72 1 Loosen the 1 5 16 jam nut above the fan base 2 Using...

Страница 59: ...ings After the spring mounts are adjusted for level operation when the fan is running check the thrust restraints With the fan off set the adjustment nuts so the spring is slightly compressed against...

Страница 60: ...g terminal TB2 105 de energizes line 220 Binary input MCB BI3 de energizes and the cooling is disabled When the field supplied Heat Enable switch is in the OFF position field wiring terminal TB2 106 d...

Страница 61: ...CB2 lines 805 838 as well as the following cooling circuit binary inputs Frost protect FP1 to CCB1 BI8 line 811 Optional when no hot gas bypass is ordered on the unit Frost protect FP2 to CCB2 BI8 lin...

Страница 62: ...If cooling is still needed the cooling tries to restart The cooling resets up to three times in a 24 hour period between 2 00 a m and 2 00 a m After the third trip the alarm remains until manually cl...

Страница 63: ...its minimum position overriding MicroTech II control of VM1 via MCB BO10 and MCB BO9 Because relay R23 de energizes whenever GV2 de energizes the burner always starts at low fire Safety Lockout If the...

Страница 64: ...enser RCS Only RCS control box EAT Exhaust air temperature sensor Energy recovery section EFT Entering fan air temperature sensor Supply fan section EHB1 Staged electric heat board Main control box ER...

Страница 65: ...ssure controls compr 1 4 Condenser section PB1 2 Power block power distribution Main control box ID Description Standard location PB3 Power block power distribution electric heat Electric heat box PB4...

Страница 66: ...ntrol box T11 Transformer speedtrol line 240VAC Condenser section TB1 Terminal block internal Main control box TB2 Terminal block field Main control box TB3 Terminal blocks factory Main control box TB...

Страница 67: ...6 137 138 139 140 141 142 109 440 427 425 426 MTR L3B L3A L2B L2A L1B L1A L3 3 L2 3 L1 3 GND W2 V2 U2 W1 V1 U1 G G T3B T2B T1B T3A T2A T1A L3 L2 L1 T3 T2 T1 L3 L3 L2 L2 L1 L1 T3 T2 T1 T3 T2 T1 L3 L2 L...

Страница 68: ...L3 1 L2 1 L1 1 L3 6 L2 6 L1 6 1 2 3 4 5 6 7 8 GRD 2 1 2 1 2 1 X3 X1 X2 H4 H3 H2 H1 3 2 1 T3 T2 T1 C2 B2 A2 C1 B1 A1 L3 L3 L2 L2 L1 L1 T3 T2 T1 T3 T2 T1 L3 L2 L1 T3 T2 T1 L3 L2 L1 T3B T3A T2B T2A T1B T...

Страница 69: ...8 139 140 141 142 109 440 427 425 426 MTR L3B L3A L2B L2A L1B L1A L3 3 L2 3 L1 3 GND W2 V2 U2 W1 V1 U1 G G T3B T2B T1B T3A T2A T1A L3 L2 L1 T3 T2 T1 L3 L3 L2 L2 L1 L1 T3 T2 T1 T3 T2 T1 L3 L2 L1 T3 T2...

Страница 70: ...3 164 165 166 167 168 169 170 109 431 109 426 MTR 2 1 2 1 2 1 X3 X1 X2 H4 H3 H2 H1 1 2 3 4 5 6 7 8 GRD L3 1 L2 1 L1 1 T3 T2 T1 T3 T2 L3 L2 T1 L1 T3B T3A T2B T2A T1B T1A L3B L3A L2B L2A L1B L1A L1 L2 L...

Страница 71: ...L2 T1 L1 T3 T2 L3 L2 T1 L1 A B C L3 L2 L1 T3 T2 T1 L3 L2 L1 L3 L2 L1 L3 L2 L1 A B C A B C T3 T2 L3 L2 T1 L1 T3 T2 L3 L2 T1 L1 T3B T3A T2B T2A T1B T1A L3B L3A L2B L2A L1B L1A L3 L2 L1 T3 T2 T1 L3 L2 L...

Страница 72: ...763 764 765 Schematic continues on previous page 832 865 827 860 8 2 4 8 5 7 MTR MTR 24V 24V MTR MTR L3 L2 L1 L3 L2 L1 L1 M1 1 2 L1 M1 1 2 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 2 3 1 T3 L3 T1 L1 T3 L...

Страница 73: ...ABLE OVERRIDE REQ D FOR NIGHT SETBACK OR SPACE RESET ZONE OR SPACE SENSOR AIR FLOW 5 4 3 2 4 1 7 6 R 5 4 R 3 2 R 1 7C 7 6C 6 5C 5 4C 4 3C 3 2C 2 1C 1 P1 REF N2 N2 J1 COM 24VAC 14 15 GRD 16 10 11 12 13...

Страница 74: ...C 9 8C 8 3 1 1 4 2 SR TR1 TR 3 1 2 S 10 8 13 WHT BLK DRN WHT BLK DRN 6 8 3 8 7 8 7 WHT BLK DRN S 103 G T Y 1 4 3 2 RED WHT BLK DRN 3 2 1 4 1 2 3 DRN RED WHT BLK 4 1 109 3 2 3 1 131 WHT BLK DRN PWR COM...

Страница 75: ...ROCESSOR CONTROL BOARD ANALOG INPUT BINARY INPUT 3 2 1 104 102 105 106 101 101 1 2 4 A C 1 2 4 A C 120 121 132 3 4 WHT BLK DRN WHT BLK DRN BLK RED WHT DRN GRD WHT BLK DRN 3 4 17 16 6 5 17 16 6 6 3 5 1...

Страница 76: ...13 107 8 4 7 1 4 3 2 DRN RED WHT BLK 1 4 2 SR TR1 TR 3 1 2 S 7 4 8 9 4 3 5 DRN WHT RED BLK 3 4 17 16 6 5 17 16 6 6 3 5 113 2 1 115 H 1 115 H 2 4 1 109 3 131 WHT BLK DRN PWR COM OUT 126 127 GRD 3 113 1...

Страница 77: ...9 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 207 207 207 364 362 207 207 239 SRC FAN_OPERATION EXT_ALARM_SIGNAL BO4 BO3 24V SRC jprs 24V SRC jp...

Страница 78: ...65 366 367 368 369 306 306 207 207 243 RECTIFIER DC 12V 115V RELIEF DAMPER OPP DR SIDE RELIEF DAMPER DRIVE SIDE HEAT OPEN B10 CLOSE B09 24V SRC jprs 24V SRC jprs AC AC L1 X1 L2 X2 1 3 BLK WHT WHT BLK...

Страница 79: ...BO2 24V SRC jprs 24V SRC jprs 24V SRC jprs SAF INCR BO14 RAF INCR BO16 HEAT ENABLE BO11 24V SRC jprs 24V SRC jprs SAF DECR BO13 RAF DECR BO15 24V SRC jprs 2ND 2NC 1NO 1NC 2C 1C 12 32 11 31 12 32 11 31...

Страница 80: ...239 425 405 137 261 404 241 430 409 149 264 DECR INCR SAF ABB401 DECR INCR RAF ABB401 7 6 4 1 3 5 14 13 7 14 H2DN H2V H2UP 14 9 12 16 10 8 11 13 7 6 5 2 3 5 12 14 13 15 H2DN H2V H2UP 14 9 12 16 10 8 1...

Страница 81: ...prs 24V SRC jprs 6000V X1 X2 115V FSG G FSG F FLAME ROD FD MICROCOMPUTER 5K1 2K1 1K1 L1 6K1 3K1 4K1 2K2 FLAME AMPLI FIER T I M E R FSG FLAME SAFEGUARD PLUG IN TYPE CONTROLLER BLK BLK 10NO 10 8 9 9 11...

Страница 82: ...O 10 ON THE MAIN CONTROL BOARD MCB ARE CLOSED THE ACTUATOR WILL REMAIN WILL RE POSITION TOWARD A HIGHER FIRING RATE UNTIL BO 10 OPENS OR THE ACTUATOR REACHES ITS MAXIMUM POSITION WHEN THE MAIN CONTROL...

Страница 83: ...E AMPLI FIER T I M E R FSG FLAME SAFEGUARD PLUG IN TYPE CONTROLLER 6000V X1 X2 115V BLK BLK 9 9 8 10NO 10 9NO 9 5 6 4 11 12 RED_G630 B WHT_G630 W YEL_G632 R YEL_G633 1 YEL_G634 2 2 1 R WHT BLK C2 C1 C...

Страница 84: ...FOR HEAT THE CONTROL SYSTEM WILL CLOSE BO 11 ON THE MAIN CTRL BRD MCB THUS ENERGIZING RELAY R20 WHEN THE ROOFTOP UNIT IS ENERGIZED 120 VOLT POWER IS SUPPLIED TO THE SYSTEM ON OFF SWITCH S1 TO BURNER...

Страница 85: ...5 3 2 4 1 2 1 GRD 18 15 13 11 10 7 20 4 17 16 12 9 8 19 6 5 2 1 3 COM2 BI6 BI5 BI4 BI3 BI2 COM1 BI1 REF N2 N2 24C BI12 BI11 BI8 BI10 BI9 BI7 24V 4 3 2 1 14 13 11 1 2 12 8 GRD 30 31 29 28 7NO 7 8 7 A1...

Страница 86: ...ED JUST UNDER COMM CARD N2 BUS 14 13 14 13 2 1 3 5 4 3 2 1 GRD 18 15 13 11 10 7 20 4 17 16 12 9 8 19 6 5 2 1 3 COM2 BI6 BI5 BI4 BI3 BI2 COM1 BI1 REF N2 N2 24C BI12 BI11 BI8 BI10 BI9 BI7 24V 1 2 2 3 WH...

Страница 87: ...2 2 1 2 1 3 A1 A2 2 1 2 2 2 2 2 2 2 4 2 3 1 4 A1 A2 7 38 40 120 T2 M L 6 12 32 11 31 5 22 21 2 1 50 12 A1 A2 2 1 2 2 2 2 2 2 2 1 4 2 3 1 8 7 A1 A2 3 45 47 120 T2 M L 3 1 2 2 12 32 11 31 22 21 8 2 1 5...

Страница 88: ...2 2 2 2 2 2 2 2 2 2 2 2 2 7 7 A1 A2 A1 A2 8 7 A1 A2 A1 A2 8 7 2 1 2 1 10 11 10 11 3 5 2 1 2 1 3 1 2 4 2 3 1 9 4 120 T2 120 T2 9 42 8 12 32 11 31 1 5 22 21 12 32 11 31 44 2 1 2 1 41 M L M L 48 4 22 21...

Страница 89: ...NTERNAL SOURCE 9 16 T3_COM 3 11 T3_24V 3 11 115VAC_GF 1 T1_N 1 68 401A 404A TB2 42 TB2 45 2 R68 10 2 R67 10 jprs 24V SRC MCB 2 2NO BO2 RETURN FAN 207 jprs 24V SRC MCB 1 1NO BO1 SUPPLY FAN 207 SRC 9 16...

Страница 90: ...relay and a ground fault current sensor The ground fault relay employs solid state circuits that will instantaneously trip and open a set of relay contacts in the 115 volt control circuit to shut the...

Страница 91: ...whenever the controller calls for the first stage of cooling The pressure regulating valve starts to modulate open at 57 psig 393 kPa The regulating valve opening point can be determined by slowly re...

Страница 92: ...nd Fire Protection Daikin optionally offers factory installed outdoor air return air and exhaust air dampers as well as smoke detectors in the supply and return air openings complete with wiring and c...

Страница 93: ...again the Freeze Prob alarm automatically clears This feature protects the coil and allows the system to start normally after a cold night Entering Fan Temperature Sensor The entering fan temperature...

Страница 94: ...s the remote UI See Figure 91 Cable and Wiring Recommendations Remote wiring to connect the unit to the remote UI is not included See Figure 92 on page 92 for wiring information and the following reco...

Страница 95: ...vanes see Figure 93 1 Verify that power is supplied to the unit s MicroTech II control system The DesignFlow startup procedure cannot be completed without use of the MicroTech II controls 2 Unlock an...

Страница 96: ...two thumbscrews rest on the top edge of the fulcrum b Its top thumbscrew rests against the vertical alignment mark on the vane Note The alignment mark is located 0 50 inch in from the bend on the out...

Страница 97: ...nd of the unit Do this by turning the long adjuster nut to decrease the L dimension in Figure 98 Note If the necessary adjustment cannot be made using the long adjuster nut reposition the two 25 20 NC...

Страница 98: ...compare to name plate rating when changing fan speed Figure 100 Fan rotation Once the fan is put into operation set up a periodic maintenance program to preserve the reliability and performance of th...

Страница 99: ...upply for air exhaust fans or exhaust air for supply fans Unit running backwards See Prestarting Checks on page 96 Fan speed too low Increase fan speed Excessive dirt on propeller Clean propeller Exce...

Страница 100: ...peller blades causing severe imbalance if left unchecked Use caution and do not allow water or solvents to enter the motor or bearings Under no circumstances should motors or bearings be sprayed with...

Страница 101: ...losed and all doors with door power disconnect switches are closed To turn the lights off disconnect power to the entire unit or open system switch S1 The normally open disconnect switches are wired i...

Страница 102: ...he shutoff cock is installed ahead of the furnace and that all air has been bled from the gas lines 9 Manually rotate all fans and verify that they rotate freely 10 Verify that the belts are tight and...

Страница 103: ...or proper airflow during air balancing For more information refer to Air Balancing on page 104 Economizer Start up 1 Check whether the outdoor air is suitable for free cooling by displaying the keypad...

Страница 104: ...Cooling DAT Clg Spt will need to be adjusted below the temperature shown in Temperature Discharge Cooling Disch Air 2 Place the unit into cooling mode through the keypad menu System Summary System Ct...

Страница 105: ...he off cycle even if the low pressure switch closes due to small leaks in the solenoid valve or compressor check valve 13 Verify that the condenser refrigerant subcooling at full capacity is between 1...

Страница 106: ...at The steam valve actuator should open the valve The steam valve is open when the valve stem is up If the unit loses power the spring in the actuator should drive the valve wide open Check this by op...

Страница 107: ...4 Over tensioning shortens belt and bearing life 5 Keep belts free from foreign material which may cause slippage 6 Make V drive inspection on a periodic basis Adjust tension if the belt is slipping D...

Страница 108: ...roove sheaves slide the sheave onto the motor shaft so that the side of the sheave with setscrew A is away from the motor see Figure 110 on page 107 2 To remove the flange and locking rings a Loosen s...

Страница 109: ...to the desired pitch diameter by turning the outer locking ring with a spanner wrench Any pitch diameter can be obtained within the sheave range One complete turn of the outer locking ring will result...

Страница 110: ...and Adjusting Motor Sheaves Figure 112 MVP variable pitch sheaves type A B L o c k i n g S c r e w s A E n d F l a n g e e n t e r F l a n g e A s s e m b l y T h r e a d B a r r e l B a r r e l F l a...

Страница 111: ...th a Building Automation System these settings may need to be kept at the default of no schedule a Schedules Daily Schedule b Schedules Holiday Schedule 18 Temporarily disconnect static pressure senso...

Страница 112: ...Db 2 0 F Min Clg Spt 55 0 F Max Clg Spt 65 0 F Clg Reset None 1 1 or 3 Min Clg Spt 0 1 1 or 3 Max Clg Spt 100 1 1 or 3 Discharge Heating Disch Air xxx x F Htg Capacity xxx Eff Htg Spt xxx x F DAT Htg...

Страница 113: ...dd Hol 16 mmmdd mmmdd Htg Zero OAT 0 F Clg Rate 0 4 F min Clg OAT 85 F Clg Zero OAT 100 F Unit Configuration AHU ID _____ Calibrate Mode No Space Sensor Yes EFT Sensor No ERcvry xxxxx hr 19 1or2 Time...

Страница 114: ...a Slow 3 8 Ckt2 Clg Ena Slow 3 8 GenC Clg Ena Slow 3 8 HtgB Htg Ena Slow 9 2 Ckt1 Comm Fail Slow 3 8 Ckt2 Comm Fail Slow 3 8 Genc Comm Fail Slow 3 8 HtgB Comm Fail Slow 9 2 ERecB CommFail Slow 19 1 or...

Страница 115: ...e running amperage of all motors Check all operating temperatures and pressures Check and adjust all temperature and pressure controls as needed Check and adjust all damper linkages as needed Check th...

Страница 116: ...n the panel 3 The location and wattage of the heat source is dependent on local environmental conditions 4 Check the control compartment every two weeks to provide that the heat source is functional a...

Страница 117: ...this is not done severe equipment damage could occur Using Table 28 check the tightness of all setscrews with a torque wrench Note that if the return fan bearings setscrews must be retightened a spec...

Страница 118: ...ay last 4 Verify that the radial clearance around the fan is uniform Radial clearance can be adjusted by slightly loosening the funnel hold down fasteners shifting the funnel as required and retighten...

Страница 119: ...sizes 015 to 105C 425 psig Reciprocating compressor units sizes 15 to 135C 400 psig a The switches have a differential of 100 psig 4 High pressure relief protective valve on sizes 115 to 135C only an...

Страница 120: ...to the ON position See Figure 120 Other MMP features Three position rotary operator OFF TRIP ON See Figure 120 Lockout tagoutable rotary operator turn the rotary operator to OFF slide out the extensi...

Страница 121: ...The terminals are spring clamp type They only require inserting see in Figure 123 and clamping the wire to be stripped which offers several advantages over screw terminals The clamping is done by inse...

Страница 122: ...e conditions return to an acceptable level for a specified amount of time Restart Delay The trip and restart delays prevent nuisance tripping due to rapidly fluctuating power line conditions Other fea...

Страница 123: ...e length field cut to length 060004705 SPS1 Static Pressure Sensor Duct No 1 049545007 SPS2 Static Pressure Sensor Duct No 2 049545007 Static Pressure Sensor Building Space Pressure 049545006 T2 Trans...

Страница 124: ...ing limitations 1 RPS 018 to 020C with single compressors No limitations 2 RPS 025 to 030C with single and tandem compressors a If any part of the tandem fails then the entire tandem must be replaced...

Страница 125: ...here to send the compressor If the compressor is not returned you will be billed for the replacement compressor 5 Consideration may be given at this time to a compressor teardown analysis depending on...

Страница 126: ...his warranty shall expire twelve 12 months from that date Exceptions 1 If free warranty labor is available as set forth above such free labor does not include diagnostic visits inspections travel time...

Страница 127: ...____________ Serial number ___________________________________ Compressor 6 model number ________________________________________ Serial number ___________________________________ Circle Yes or No If...

Страница 128: ...cuit 1 __________ psig Circuit 2 __________ psig Liquid press fully loaded 2 3 compressors at liquid line shutoff valve Circuit 1 __________ psig Circuit 2 __________ psig Liquid temperature fully loa...

Страница 129: ...o N A M Low Gas Pressure Switch OK Yes No N A N Main Gas Valve Close off OK Yes No N A VIII OIL BURNER CHECK TEST START A Nozzle s Type manufacturer GPH Angle Pattern manufacturer B Nozzle pressure __...

Страница 130: ...unit ___________________________________________________________________________ 5 Were there any refrigerant leaks Yes No N A Shipping Workmanship Design 6 Does the refrigerant piping have excessive...

Страница 131: ...IM 738 2 129...

Страница 132: ...ment its care should be a high priority For training information on all Daikin HVAC products please visit us at www DaikinApplied com and click on training or call 540 248 9646 and ask for the Trainin...

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