TempMaster Omni Premier 25 Ton Installation And Maintenance Manual Download Page 9

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General

Table 1: Physical data

Unit size

25 ton

30 ton

40 ton

50 ton

60 ton

70 ton

80 ton

Compressor data - standard capacity, standard efficiency

Quantity/size
(nominal HP)

1/4.5, 1/7, 1/10

1/5.5, 1/7,

1/7, 1/7.5

1/5.5, 1/8.5,

1/10, 1/11.5

1/7.5, 1/10,

1/11.5, 1/15

1/12, 1/12,

1/15, 1/15

1/10, 1/15,

1/15, 1/20

1/15, 1/15,

1/15, 1/20

Type

Scroll

Capacity steps

Number of circuits

Compressor data - high capacity, standard efficiency

Quantity/size
(nominal HP)

1/5, 1/7.5, 1/10

1/5.5, 1/7,

1/7, 1/ 8.5

1/7, 1/13,

1/8.5, 1/10

1/8.5, 1/15,

1/7.5, 1/15

Type

Scroll

Capacity steps

Number of circuits

Compressor data - standard capacity, high efficiency

Quantity/size
(nominal HP)

1/5, 1/7.5, 1/13 1/7, 1/7, 1/18.5 1/7.5, 1/7.5,

1/10, 1/13

1/10, 1/10,

1/12, 1/17.5

1/10, 1/15,

1/15, 1/17.5

1/13, 1/15,

1/15, 1/27

1/15, 1/15,

1/15, 1/27

Type

Scroll

Capacity steps

15–100%

Number of circuits

Supply fan

Quantity of fans/

motors

1/1

2/2

Type

Direct drive

plenum

Direct drive

plenum

Direct drive

plenum

Direct drive

plenum

Direct driven

plenum

Direct driven

plenum

Direct driven

plenum

Size (in.)

Motor size range each

fan (min to max HP)

5–25

10–50

5-30

Airflow range (min to

max CFM)

5,000–12,000

8,000–20,000

8,000–20,000 12,000-24,000 14,000-32,000 14,000-32,000

Total static pressure

range (min to max iwg)

1.0–8.0

1-8.3

Return fan

Quantity of fans/

motors

1/1

Type

Belt-driven

plenum

Belt-driven

plenum

Belt-driven

plenum

Belt-driven

plenum

Direct driven

plenum

Direct driven

plenum

Direct driven

plenum

Size (in.)

Motor size range (min

to max HP)

5–10

5–20

7.5-40

Airflow range (min to

max CFM)

5,000–12,000

8,000–20,000

8,000–20,000 12,000-24,000 14,000-32,000 14,000-32,000

Total static pressure

range (min to max iwg)

0.5–3.0

Exhaust fan

Quantity of fans/

motors

1/1

Type

Belt-driven

forward curved

Belt-driven

forward curved

Belt-driven

forward curved

Belt-driven

forward curved

Belt-driven

forward curved

Belt-driven

forward curved

Belt-driven

forward curved

Size (in.)

18–18

25–25

30-30

Motor size range (min

to max HP)

3–15

5–20

5-25

5-40

Tempmaster

Omni™ Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide

Tempmaster

Summary of Contents for Omni Premier 25 Ton

Page 1: ...Form Number 5881373 TIM 421 New Release Installation Guide Issue Date 2021 04 01 Tempmaster Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide ...

Page 2: ...2 Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide Tempmaster ...

Page 3: ...y 18 Indoor air quality 18 Double wall construction 18 Demand control ventilation 18 Smoke control 19 Filtration 19 Ultraviolet lights 19 Electrical 19 Single point power 19 Dual point power 19 Power phase monitor 19 Unit mounted disconnect 65 kA SCCR 19 Service and Installation 19 Split ship 19 Internal lights 19 Access doors padlocks viewports safety latch and door tiebacks 19 Service valves and...

Page 4: ...cation 97 Condensate drain 98 Periodic maintenance yearly 99 Entire unit inspection 99 Condensate float switch 99 Ultraviolet lights 99 Internal lights 99 Sheave alignment 99 Belts 100 Belt replacement 100 Filter drier replacement 100 Energy recovery wheel 101 Remove the wheel holder supports 101 Sliding the ERW 102 Remove wheel segments 103 Install wheel segments 104 Periodic maintenance as neede...

Page 5: ...ed literature Manual Description Form Number Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 5881373 TIM Omni Premier 25 Ton to 80 Ton Rooftop Units R 410A Start Up and Operation Guide 5881376 TSG A Omni Premier 60 Ton to 80 Ton Rooftop Units Split Ship Assembly Installation Manual 6011418 TIM Omni Premier 25 Ton to 80 Ton Rooftop Units Advanced Graphic Touchscreen D...

Page 6: ...point terminal block H 460 V 3Ph 60 Hz dual point terminal block J 460 V 3Ph 60 Hz single point non fused DISC K 460 V 3Ph 60 Hz single point terminal block 65KA SCCR L 460 V 3Ph 60 Hz dual point terminal block 65KA SCCR M 460 V 3Ph 60 Hz single point fused DISC 65KA SCCR N 575 V 3Ph 60 Hz single point terminal block P 575 V 3Ph 60 Hz dual point terminal block Q 575 V 3Ph 60 Hz single point non fu...

Page 7: ...tion P Belt guards and return fan airflow measurement station and shaft grounding ring Q Extended grease lines and belt guards and return fan airflow measurement station R Extended grease lines and belt guards and return fan airflow measurement station and shaft grounding ring R Extended Grease Lines and Belt Guards and Return Fan Airflow Measurement Station and Shaft Grounding Ring Digits 24 Retu...

Page 8: ... sensors demand controlled ventilation Digit 36 Gas heat shipped loose kits 0 None 1 Gas heat side penetration 2 Gas heat bottom penetration 3 Gas heat high altitude kit natural gas NG side penetration 4 Gas heat high altitude kit NG bottom penetration 5 Gas heat high altitude kit liquid propane LP side penetration 6 Gas heat high altitude kit LP bottom penetration 7 Gas heat LP conversion kit sid...

Page 9: ... driven plenum Direct driven plenum Direct driven plenum Size in 27 27 33 33 27 27 27 Motor size range each fan min to max HP 5 25 5 25 10 50 10 50 5 30 5 30 5 30 Airflow range min to max CFM 5 000 12 000 5 000 12 000 8 000 20 000 8 000 20 000 12 000 24 000 14 000 32 000 14 000 32 000 Total static pressure range min to max iwg 1 0 8 0 1 0 8 0 1 0 8 0 1 0 8 0 1 8 3 1 8 3 1 8 3 Return fan Quantity o...

Page 10: ...d capacity high efficiency Size sq ft 24 24 36 36 49 5 66 66 Number of rows fins per in 4 17 6 17 4 17 6 17 6 17 6 17 6 17 Size tube diameter in in 3 8 3 8 3 8 3 8 3 8 3 8 3 8 Hot gas reheat HGRH coil Coil type Microchannel Microchannel Microchannel Microchannel Microchannel Microchannel Microchannel Control type Modulating Modulating Modulating Modulating Modulating Modulating Modulating Size are...

Page 11: ...ted RA filters size number 25 x 25 2 25 x 25 2 15 x 20 6 15 x 20 6 OA filters size number 25 x 25 2 25 x 25 2 15 x 20 6 15 x 20 6 Energy recovery wheel ERW low CFM Cassette dimensions L in x W in x H in 44 x 4 36 x 44 44 x 4 36 x 44 56 19 x 4 36 x 56 19 56 19 x 4 36 x 56 19 Wheel segments 6 6 6 6 Motor V ph Hz 208 230 3 60 460 3 60 575 3 60 208 230 3 60 460 3 60 575 3 60 208 230 3 60 460 3 60 575 ...

Page 12: ...1 Material Copper Tube Aluminum Fin Copper Tube Aluminum Fin Copper Tube Aluminum Fin Copper Tube Aluminum Fin Fins per in low high 8 14 8 14 8 14 8 14 Size H in x L in rows low 24 x 68 1 24 x 68 1 42 x 68 1 42 x 68 1 Size H in x L in rows high 24 x 68 1 24 x 68 1 42 x 68 1 42 x 68 1 Draw through 2 in throwaway angled filters Quantity 18 24 28 Size L in x W in 16 x 20 16 x 20 16 x 24 Total filter ...

Page 13: ...lters MERV 15 bag filters with 2 in pre filters Quantity 4 4 8 3 6 8 Size L in x W in 24 x 24 20 x 20 24 x 24 12 x 24 24 x 24 20 x 24 Pre filters Total filter face area sq ft 27 11 38 00 48 47 Quantity 3 4 2 6 7 6 4 4 Size L in x W in 24 x 24 20 x 20 12 x 24 24 x 24 12 x 24 24 x 24 24 x 20 20 x 24 Bag filters Total filter face area sq ft 27 11 38 00 47 93 Final filters MERV 14 rigid filters with 2...

Page 14: ...0 34 26 Figure 1 25 80 ton packaged rooftop unit cabinet assembly Note Some components listed are optional 1 Economizer 8 Condenser coil cleaning hatch not shown 2 Evaporator coil 9 Unit controller and power 3 Direct drive plenum DDP supply fan 10 Filter section 4 Modulating or staged gas heat 11 Collapsible rain hoods 5 Condenser maintenance safety tie off 12 Exhaust or return fan 6 Condenser fan...

Page 15: ...ed in this manual to find the options that were selected for your unit Ecological and economical design The Premier rooftop units feature a capacity range from 25 ton to 80 ton The units are configured to order with a wide selection of factory installed options A complete range of heating and cooling options are provided to meet today s customers requirements The unit has also been thoughtfully de...

Page 16: ...e use of an epoxy coated coil is recommended for units installed in a corrosive environment Condenser coil protection The unit is available with a wire mesh guard or louvered hail guard for optimum coil protection Blank section Sound attenuator To meet customer specific requirements in sound sensitive applications such as theaters libraries or hospitals a sound attenuator is provided as an option ...

Page 17: ... to drill holes either through the base or side of the unit Air management Fans High efficiency fans are used to improve application flexibility and address sound and application concerns The fan section is equipped with a single width single inlet SWSI airfoil plenum wheel on 25 ton to 50 ton and dual SWSI airfoil plenum wheels on 60 ton to 80 ton as a standard feature Plenum fans are direct driv...

Page 18: ...ned for quick selections An optional color wide screen thin film transistor TFT with multitouch capacitive touchscreen and 1280 800 resolution is also available to order factory installed or to field install The user interface display along with all VFD displays are located in the control cabinet section When cabinet and control panel sizes allow the display mounted panel can be adjusted according...

Page 19: ...ase imbalance and high and low voltage To ensure operator safety high and low voltage connections are separated in the controls cabinet Unit mounted disconnect 65 kA SCCR Factory provided disconnect is available as an option to minimize time during installation of equipment and to reduce necessary field installed items 65 kA short circuit current rating SCCR is available as an option to safely wit...

Page 20: ...ly fan inlet and optional belt guards are provided to enclose the drive and sheave package on the return 25 ton to 50 ton and exhaust 25 ton to 80 ton fan A spare set of belts for the return 25 ton to 50 ton and exhaust 25 ton to 80 ton fan are available as a ship loose option Start up and air balancing wizard One of the most critical phases of the unit s life is during installation and start up P...

Page 21: ... transducers All other sensors and transducers listed are optional Actual sensor locations and availability may vary based on the unit configuration and options ordered Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 21 Tempmaster ...

Page 22: ...service agency or the gas supplier WARNING Improper installation may create a condition where the operation of the product could cause personal injury or property damage Improper installation adjustment alteration service or maintenance can cause injury or property damage Refer to this manual for assistance or for additional information consult a qualified contractor installer or service agency WA...

Page 23: ...ve all precautions in the literature tags and labels attached to the unit and other safey precautions that apply whenever working on air conditioning equipment Wear safety glasses and work gloves use quenching cloth for unbrazing operations and have a fire extinguisher available for all brazing operations Limitations The installation of this unit must conform with local building codes or in the ab...

Page 24: ...gulations If the unit installation will be at ground level consider the following points Install the unit on a substantial base that will not settle Settling causes undue stress and strain on refrigerant lines which could cause costly leaks in the refrigeration systems A one piece concrete slab with footers that extend below the frost line is highly recommended The slab should be isolated from the...

Page 25: ... not be installed near other flue stacks or exhaust fan outlets from the building to prevent possible reintroduction of contaminated air through the outside air intakes Proper service clearances must be maintained around the perimeter of the unit This will allow for proper servicing of the unit as well as adequate air flow for condenser coils and combustion air for gas fired furnaces Note The clea...

Page 26: ...mittal Data for the exact unit weight corner loads and center of gravity As part of the submittal data a unit specific rigging and handling instructions document with lifting lug drawing is available Proper spreader bar s and cables that are appropriate for the configuration and size of the unit must be used during rigging Refer to Figure 6 and Figure 7 for the lifting lug angles and examples For ...

Page 27: ...nd all lifting lugs whenever the unit is lifted Failure to do so could result in damage to the unit or injury to personnel Figure 5 Warning label on the unit Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 27 Tempmaster ...

Page 28: ... a trained professional rigger The most appropriate rigging and lifting method will depend on job specific factors such as the rigging equipment available and site needs Therefore a professional rigger must determine the rigging and lifting method to be used and it is beyond the scope of this drawing to specify rigging and lifting details for all applications Figure 7 Lifting load angles Tempmaste...

Page 29: ...Use either a 3 4 in round pin anchor shackle or a 3 4 in round pin chain shackle for each lifting lug Figure 9 Unit base rail to curb fitup Note The roof curb wood nailer and gasket are factory provided All other illustrated items insulation flashing felts and so on must be field supplied Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 29 Tempmaster ...

Page 30: ... 5 440 440 471 471 423 423 423 Large post evaporator blank cabinet 6 914 914 978 978 Discharge plenum cabinet 7 501 501 554 554 606 686 686 DDP supply fan components 8 Supply fan and 5 HP 208 230 460 V ODP 415 415 598 598 598 Supply fan and 7 5 HP 208 230 460 V ODP 463 463 725 725 725 Supply fan and 10 HP 208 230 460 V ODP 464 464 600 600 757 757 757 Supply fan and 15 HP 208 230 460 V ODP 563 563 ...

Page 31: ... Motor 208 230 460 V ODP 1511 1535 1535 Direct driven return fan and 30 HP Motor 208 230 460 V ODP 1613 1637 1637 Direct driven return fan and 40 HP Motor 208 230 460 V ODP 1792 1816 1816 Direct driven return fan and 7 5 HP Motor 575 V ODP 1379 1403 1403 Direct driven return fan and 10 HP Motor 575 V ODP 1448 1472 1472 Direct driven return fan and 15 HP Motor 575 V ODP 1498 1522 1522 Direct driven...

Page 32: ... 405 506 506 Gas heat stage or modulating aluminized or stainless steel 250 MBH 233 233 500 MBH 348 348 361 361 358 358 358 750 MBH 530 530 542 542 1000 MBH 610 610 610 1250 MBH 839 839 1500 MBH 860 860 860 Electric heat 11 Low heat 315 315 420 420 High heat 346 346 462 462 Hot water heat Low heat with valves 202 202 224 224 High heat with valves 341 341 267 267 Steam heat Low heat with valves 223...

Page 33: ...et guards 10 For belt driven exhaust return fan motor includes the weight of the motor VFD line reactor and VFD bypass For direct driven return fan weight includes return fan and motor isolators inlet guards shaft grounding ring VFD line reactor Return fan redundant VFD weight included under miscellaneous options 11 All sizes of electric heat 12 A transformer is required if convenience outlet gas ...

Page 34: ...exhaust fan with backdraft damper or modulating damper Dimension set M L3 W2 N O P Q R Bottom return right OA side exhaust 86 63 51 36 31 94 59 92 19 26 21 00 7 00 17 17 Bottom return right OA front exhaust 86 63 51 36 31 94 59 92 19 26 21 00 7 00 17 17 Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 34 Tempmaster ...

Page 35: ...ide exhaust 8 98 38 00 45 26 25 50 22 45 16 55 7 00 17 17 Top return right OA front exhaust 8 98 38 00 45 26 25 50 22 45 16 55 7 00 17 17 Top return left OA side exhaust 8 98 38 00 45 26 25 50 22 45 16 55 7 00 17 17 Top return left OA front exhaust 8 98 38 00 45 26 25 50 22 45 16 55 7 00 17 17 Top return no OA no EA 8 98 38 00 45 26 25 50 Dimension set S L1 H2 T O P Q R Left return right OA front ...

Page 36: ...ludes either gas hot water steam or electric 3 SU Standard Unit DP Discharge Plenum B Bottom Discharge L Left Discharge R Right Discharge T Top Discharge 4 Dimensions are 1 in Table 6 25 ton to 30 ton unit dimensions in with bottom and top discharge Bottom discharge Top discharge Unit configuration G L4 I W3 G L4 I W3 SU with vertical filter 4 in DP B L R T 158 09 30 13 9 53 77 00 158 09 30 13 9 5...

Page 37: ...DP B L R T 269 56 28 21 4 65 47 04 269 56 28 21 4 65 47 04 SU with vertical filter 4 in discharge through heat section B L 160 75 43 00 15 09 34 00 SU with discharge through heat section B L 177 75 43 00 15 09 34 00 SU with heat DP B L R T 227 66 28 21 4 65 47 04 227 66 28 21 4 65 47 04 SU with pre evap blank discharge through heat section B L 230 75 43 00 15 09 34 00 SU with pre evap blank heat D...

Page 38: ... OA side exhaust 93 57 52 86 45 00 46 86 31 13 23 40 4 10 17 17 Bottom return right OA front exhaust 93 57 52 86 45 00 46 86 31 13 23 40 4 10 17 17 Table 9 40 ton to 50 ton unit dimensions in for return options without an ERW Unit configuration If unit has a return fan with modulating damper If unit has an exhaust fan with backdraft damper or modulating damper Dimension set M L3 W2 N O P Q R M L3 ...

Page 39: ...8 04 19 10 29 16 20 18 4 10 17 17 Top return no OA no EA 4 31 47 34 58 04 19 10 Dimension set S L1 H2 T O P Q R Left return right OA front exhaust 7 63 50 00 55 00 8 19 29 16 20 18 4 10 17 17 Left return no OA no EA 7 63 50 00 55 00 8 19 Right return left OA front exhaust 7 63 50 00 55 00 8 19 29 16 20 18 4 10 17 17 Right return no OA no EA 7 63 50 00 55 00 8 19 Dimension set U W1 H1 V O P Q R Fro...

Page 40: ... 77 00 284 09 30 13 9 53 77 00 SU with vertical filter 4 in discharge through heat section B L 180 25 40 00 25 89 50 00 SU with discharge through heat section B L 197 25 40 00 25 89 50 00 SU with heat DP B L R T 244 19 30 13 9 53 77 00 244 19 30 13 9 53 77 00 SU with pre evap blank discharge through heat section B L 250 25 40 00 25 89 50 00 SU with pre evap blank heat DP B L R T 297 19 30 13 9 53 ...

Page 41: ... 62 04 366 06 28 21 4 65 62 04 SU with pre evap blank large post evap blank DP B L R T 408 06 28 21 4 65 62 04 408 06 28 21 4 65 62 04 SU with small post evap blank DP B L R T 313 06 28 21 4 65 62 04 313 06 28 21 4 65 62 04 No heat SU with large post evap blank DP B L R T 355 06 28 21 4 65 62 04 355 06 28 21 4 65 62 04 SU with discharge through heat section B L 271 75 40 00 14 09 50 00 SU with hea...

Page 42: ...51 12 83 47 06 15 98 16 17 13 93 13 66 56 91 77 87 4 13 35 95 26 92 16 17 13 93 Dimension set S L1 H2 T O P Q R S L1 H2 T O P Q R Left return right OA front exhaust 5 09 74 78 66 11 7 64 35 95 26 92 16 17 13 93 Unit configuration If unit has no fan and barometric damper Dimension set M L3 W2 N O P Q R Bottom return right OA side exhaust 6 13 54 28 65 00 43 92 33 23 23 08 11 27 13 93 Bottom return ...

Page 43: ...er discharge through heat section B L 190 85 40 00 26 51 60 00 190 75 40 00 9 19 60 00 NA NA NA NA SU discharge through heat section B L 207 85 40 00 26 51 60 00 207 75 40 00 9 19 60 00 NA NA NA NA SU with heat discharge plenum B L R 256 19 30 00 19 52 74 00 257 06 28 21 4 65 72 04 257 06 28 21 4 65 72 04 Basic economizer no ERW Heat SU with heat small post evap blank discharge plenum B L R 301 19...

Page 44: ...41 63 45 51 12 83 52 68 13 07 16 17 13 93 13 66 56 91 77 87 4 13 35 95 26 92 16 17 13 93 Dimension set S L1 H2 T O P Q R S L1 H2 T O P Q R Left return right OA front exhaust 5 09 74 78 66 11 7 64 35 95 26 92 16 17 13 93 Unit configuration If unit has no fan and barometric damper Dimension set M L3 W2 N O P Q R Bottom return right OA side exhaust 6 13 54 28 65 00 43 92 38 08 20 58 11 27 13 93 Botto...

Page 45: ...n vertical filter discharge through heat section B L 219 35 40 00 26 50 60 00 219 25 40 00 9 19 60 00 NA NA NA NA SU discharge through heat section B L 236 35 40 00 26 50 60 00 236 25 40 00 9 19 60 00 NA NA NA NA SU with heat discharge plenum B L R 284 69 40 00 19 52 74 00 285 56 38 21 4 65 72 04 285 56 38 21 4 65 72 04 Basic economizer no ERW Heat SU with heat small post evap blank discharge plen...

Page 46: ...blank options Empty Empty Empty Humidifier Humidifier Air blender Sound attenuator Sound attenuator Final filter Final filter Sound attenuator and final filter Sound attenuator and humidifier Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 46 Tempmaster ...

Page 47: ...368 4 91 55 72 440 40 84 38 SU with discharge through heat section B L 302 90 96 05 298 40 91 55 72 370 40 84 38 SU with heat DP B L R T 337 50 96 05 333 00 91 55 72 405 00 84 38 SU with pre evap blank with discharge through heat section B L 359 00 96 05 354 50 91 55 72 426 50 84 38 SU with pre evap blank heat DP B L R T 390 50 96 05 386 00 91 55 72 458 00 84 38 SU with pre evap blank heat small p...

Page 48: ...tom supply opening with ERW in Unit configuration AHU LG Unit WD AHU curb LG Curb WD Cond LG Total LG E A SU with pre evap blank small post evap blank DP B L R T See SU with heat small post evap blank DP B L R T SU with pre evap blank large post evap blank DP B L R T See SU with heat large post evap blank DP B L R T SU with small post evap blank DP B L R T 346 40 96 05 341 90 91 55 87 30 429 20 91...

Page 49: ...52 86 4 40 17 90 40 00 50 00 SU with pre evap blank heat DP B L R T 45 00 52 86 7 27 30 13 77 00 SU with pre evap blank heat small post evap blank DP B L R T 45 00 52 86 7 27 30 13 77 00 SU with pre evap blank heat large post evap blank DP B L R T 45 00 52 86 7 27 30 13 77 00 SU with heat small post evap blank DP B L R T 45 00 52 86 7 27 30 13 77 00 Heat SU with heat large post evap blank DP B L R...

Page 50: ...5 302 90 91 55 72 00 374 90 11 41 Heat SU with heat large post evap blank DP B L R T 349 40 96 05 344 90 91 55 72 00 416 90 11 41 Table 23 25 ton to 30 ton left bottom return opening with bottom supply opening without ERW in Unit configuration B RA WD RA LG C D SA LG SA WD SU with vertical filter 4 in DP B L R T 9 35 51 00 33 73 7 27 30 13 77 00 SU with DP B L R T 9 35 51 00 33 73 7 27 30 13 77 00...

Page 51: ...ap blank DP B L R T 366 90 96 05 362 40 91 55 87 30 449 70 11 41 Table 25 40 ton to 50 ton left bottom return opening with bottom supply opening without ERW in Unit configuration B RA WD RA LG C D SA LG SA WD SU with vertical filter 4 in DP B L R T 72 99 37 63 7 27 30 13 77 00 SU with DP B L R T 72 99 37 63 7 27 30 13 77 00 SU with pre evap blank small post evap blank DP B L R T See SU with heat s...

Page 52: ...98 40 91 55 72 00 370 40 11 41 SU with vertical filter 4 in with discharge through heat section B L 209 40 96 05 204 90 91 55 72 00 276 90 11 41 SU with discharge through heat section B L 226 40 96 05 221 90 91 55 72 00 293 90 11 41 SU with Heat DP B L R T 261 00 96 05 256 50 91 55 72 00 328 50 11 41 SU with pre evap blank with discharge through heat section B L 279 40 96 05 274 90 91 55 72 00 346...

Page 53: ...pening without ERW in Unit configuration AHU LG Unit WD AHU curb LG Curb WD Cond LG Total LG E A SU with vertical filter 4 in DP B L R T 209 90 96 05 205 40 91 55 87 30 292 70 11 41 SU with DP B L R T 226 90 96 05 222 40 91 55 87 30 309 70 11 41 SU with pre evap blank small post evap blank DP B L R T See SU with heat small post evap blank DP B L R T SU with pre evap blank large post evap blank DP ...

Page 54: ...with discharge through heat section B L 72 99 37 63 4 40 17 90 40 00 50 00 SU with heat DP B L R T 72 99 37 63 7 27 30 13 77 00 SU with pre evap blank with discharge through heat section B L 72 99 37 63 4 40 17 90 40 00 50 00 SU with pre evap blank heat DP B L R T 72 99 37 63 7 27 30 13 77 00 SU with pre evap blank heat small post evap blank DP B L R T 72 99 37 63 7 27 30 13 77 00 SU with pre evap...

Page 55: ...9 8 108 49 97 2 347 0 3 8 SU with discharge through heat section B L with standard eco 278 4 113 0 273 8 108 49 97 2 371 0 11 4 SU with heat DP B L R with basic eco 290 4 113 0 285 8 108 49 97 2 383 0 3 8 SU with heat DP B L R with standard eco 314 4 113 0 309 8 108 49 97 2 407 0 11 4 SU with heat small post evap blank DP B L R with basic eco 335 4 113 0 330 8 108 49 97 2 428 0 3 8 Heat SU with he...

Page 56: ...ertical filter 4 in DP B L R with standard eco 263 9 113 0 259 3 108 49 125 2 384 5 11 4 SU with DP B L R with basic eco 256 9 113 0 252 3 108 49 125 2 377 5 3 8 SU with DP B L R with standard eco 280 9 113 0 276 3 108 49 125 2 401 5 11 4 SU with small post evap blank DP B L R with basic eco 320 9 113 0 316 3 108 49 125 2 441 5 3 8 No heat SU with small post evap blank DP B L R with standard eco 3...

Page 57: ...ion B L with standard eco 62 6 77 9 56 9 4 2 24 3 40 0 60 0 SU with discharge through heat section B L with basic eco 62 6 65 0 54 3 4 2 24 3 40 0 60 0 SU with discharge through heat section B L with standard eco 62 6 77 9 56 9 4 2 24 3 40 0 60 0 SU with heat DP B L R with basic eco 62 6 65 0 54 3 NA 17 2 40 0 74 0 SU with heat DP B L R with standard eco 62 6 77 9 56 9 NA 17 2 40 0 74 0 SU with he...

Page 58: ... 306 4 113 0 301 8 108 49 97 2 399 0 11 4 SU with vertical filter 4 in with discharge through heat section B L with basic eco 237 4 113 0 232 8 108 49 97 2 330 0 3 8 SU with vertical filter 4 in with discharge through heat section B L with standard eco 261 4 113 0 256 8 108 49 97 2 354 0 11 4 SU with discharge through heat section B L with basic eco 254 4 113 0 249 8 108 49 97 2 347 0 3 8 SU with ...

Page 59: ... 0 60 0 SU with heat DP B L R with basic eco 48 6 65 0 54 3 NA 17 2 30 0 74 0 SU with heat DP B L R with standard eco 48 6 77 9 56 9 NA 17 2 30 0 74 0 SU with heat small post evap blank DP B L R with basic eco 48 6 65 0 54 3 NA 17 2 30 0 74 0 Heat SU with heat small post evap blank DP B L R with standard eco 48 6 77 9 56 9 NA 17 2 30 0 74 0 Table 33 70 ton to 80 ton right bottom return opening wit...

Page 60: ...U with vertical filter 4 in DP B L R with standard eco 62 6 77 9 56 9 NA 17 2 40 0 74 0 SU with DP B L R with basic eco 62 6 65 0 54 3 NA 17 2 40 0 74 0 SU with DP B L R with standard eco 62 6 77 9 56 9 NA 17 2 40 0 74 0 SU with small post evap blank DP B L R with basic eco 62 6 65 0 54 3 NA 17 2 40 0 74 0 No heat SU with small post evap blank DP B L R with standard eco 62 6 77 9 56 9 NA 17 2 40 0...

Page 61: ...ith the Nomenclature 25 ton to 80 ton model number to see what options the unit has Find the submittal data specific to your unit in the Selection Navigator on the Navigator customer portal Note Alternatively download and use the RTUToolkit application to get unit specific data Electrical data The rooftop unit requires both power and control wiring Power and control wiring must be field provided a...

Page 62: ...al to 1 0 amp Use the following calculations to determine MCA and MOP for units supplied with a single point power connection Note For electric heat applications the nameplate MCA MOP value is the larger of the cooling mode or the heating mode value calculated MCA 1 25 Load1 1 25 Load3 Load2 Load4 Exception Load3 may be multiplied by 1 if the electric heater is greater than 50kW MOP 2 25 Load1 Loa...

Page 63: ...2B 25 0 164 0 12 2 100 0 9 0 78 0 1A 25 0 164 0 12 2 100 0 9 0 78 0 1B 25 0 164 0 12 2 100 0 9 0 78 0 2A 22 4 149 0 10 6 75 0 7 7 54 0 30 ton 2B 27 6 191 0 12 8 101 0 9 6 78 0 1A 48 1 245 0 18 6 125 0 14 7 100 0 1B 22 4 149 0 10 6 75 0 7 7 54 0 2A 34 0 240 0 16 0 140 0 12 9 107 6 40 ton 2B 28 2 240 0 14 7 130 0 11 3 93 7 1A 29 5 195 0 14 7 95 0 12 2 80 0 1B 55 8 340 0 26 9 173 0 23 7 132 0 2A 48 1...

Page 64: ...data Nominal voltage 208 230 3 60 460 3 60 575 3 60 Model Compressor RLA Input A LRA RLA Input A LRA RLA Input A LRA VSD2 3 50 4 24 5 26 3 2A 19 0 123 0 9 7 62 0 7 4 50 0 25 ton 2B 27 6 191 0 12 8 101 0 9 6 78 0 VSD2 3 80 0 49 9 37 6 2A 25 0 164 0 12 2 100 0 9 0 78 0 30 ton 2B 25 0 164 0 12 2 100 0 9 0 78 0 VSD2 3 68 0 31 0 31 0 1B 39 1 267 0 18 6 142 0 15 4 103 0 2A 27 6 203 0 14 1 98 0 11 5 84 0...

Page 65: ...iency standard capacity 2 1 1 16 7 7 7 5 6 Standard efficiency standard capacity 30 ton Standard efficiency High capacity 2 0 2 19 8 6 7 8 40 ton All configurations Standard ambient 50 ton All configurations 4 4 0 28 8 13 6 6 8 25 ton 30 ton 2 0 2 19 8 6 7 8 40 ton Low ambient 50 ton All configurations 4 2 2 33 4 15 4 11 2 60 ton All configurations 4 4 0 28 8 13 6 6 8 Standard ambient 70 ton to 80...

Page 66: ... 20 0 8 184 4 147 5 Note 208 VA to 230 VA are based on 230 V operation Silicon controlled rectifier SCR is a modulating electric heat option SCR electric heat is installed on the first stage of the unit and provides modulation from 0 100 Table 43 Supply fan and return exhaust fan 25 ton to 50 ton premium efficiency ODP Nominal voltage 208 230 3 60 460 3 60 575 3 60 Motor HP FLA FLA FLA 5 14 6 6 5 ...

Page 67: ... 7 5 19 4 9 7 8 01 10 25 12 5 10 15 36 18 14 2 20 48 24 19 1 25 60 30 24 5 30 72 36 29 Exhaust fan motor 40 98 49 40 Table 45 Supply fan and return exhaust fan 25 ton to 50 ton premium efficiency TEFC Nominal voltage 208 230 3 60 460 3 60 575 3 60 Motor HP FLA FLA FLA 5 13 9 6 7 5 3 7 5 20 9 5 7 6 10 25 4 12 9 6 15 38 18 1 14 6 20 52 24 19 2 25 64 31 24 30 78 38 29 40 102 48 39 Supply fan motor 50...

Page 68: ...A FLA Low CFM ERW 0 88 0 44 0 46 25 ton High CFM ERW 0 88 0 44 0 46 Low CFM ERW 0 88 0 44 0 46 30 ton High CFM ERW 0 88 0 44 0 46 Low CFM ERW 0 88 0 44 0 46 40 ton High CFM ERW 2 2 1 1 0 88 Low CFM ERW 0 88 0 44 0 46 50 ton High CFM ERW 2 2 1 1 0 88 Note 208 VA to 230 VA are based on 230 V operation Table 48 Miscellaneous data Nominal voltage 208 230 3 60 460 3 60 575 3 60 Description A A A Contro...

Page 69: ...VAC must be provided by the main control board On the main control board wire between W10 24 VAC output and W4 OCC S input Figure 21 Safety switch input The rooftop unit can accept a safety switch input that can immediately shut down all unit operation The safety switch input is on terminal W5 on the main control board When 24 VAC is not present at the safety switch input the unit shuts down all o...

Page 70: ...he unit is ordered with a specific option that requires this board There are several field wiring connections that can be used to monitor and control components on the options board Figure 24 See the options board and its list of terminals For their locations and descriptions refer to the Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units R 410A Start Up and Operation Guide 5881376 TSG A that ...

Page 71: ...d 1 CB2 Condenser Board 2 OB Options Board CTB Customer Terminal Board Figure 23 Field wiring to CTB Figure 24 Field wiring to OB Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 71 Tempmaster ...

Page 72: ...wn To adjust panels with 3 VFD cutouts remove the 2 brackets with 8 screws total Adjust the panel to the desired allowable height see Figure 30 and Figure 28 Assemble the panel in the desired location by re installing the 2 brackets and 8 screws using the pre drilled holes see Figure 30 To adjust panels with 7 VFD cutouts remove the 3 brackets with 12 screws total Adjust the panel to the desired a...

Page 73: ... Three VFD cutout display panel Table 50 Seven VFD cutout display panel mounting options Location X in Y in Upper Not an Available Option Center 7 89 11 34 25 ton to 30 ton Lower Not an Available Option Upper Not an Available Option Center 15 02 19 21 40 ton to 50 ton Lower 26 22 8 01 Table 50 Seven VFD cutout display panel mounting options Location X in Y in Upper 3 83 40 5 Center 15 02 29 3 60 t...

Page 74: ...is switch trips frequently the user is advised to evaluate the appliance wiring or amperage draw The convenience outlet load should not exceed 15 amps Unit enable switch The unit enable switch is provided as a standard feature below the display panel to disable the unit in case of emergency or when the user needs to shut down the unit instantly The unit cannot be turned ON unless this switch has b...

Page 75: ...sure transducer A unit can be ordered with a factory installed exhaust damper that is capable of removing excess building static pressure If the unit was ordered with an exhaust damper a building static pressure transducer is factory installed Route the field provided pneumatic tubing from the high side port of the building static pressure transducer to the building static pressure probe The ideal...

Page 76: ...uired specific gravity of the gas and the length of piping run The latest edition of the National Fuel Gas Code Z223 1 should be followed in all cases unless superseded by local codes Refer to Table 52 The maximum gas pressure allowed at the unit connection is 0 5 psig or 13 5 iwg WARNING If the information in this manual is not followed exactly a fire or explosion can result and cause property da...

Page 77: ...al gas piping connection Table 52 Sizing of inlet gas piping Nominal iron pipe size Length ft 1 1 4 in 1 1 2 in 2 in 10 1 404 2 103 3 050 20 965 1 445 2 100 30 775 1 116 1 650 40 663 993 1 450 50 880 1 270 60 798 1 150 70 734 1 050 80 638 990 Note Maximum capacity of pipe in cubic feet of gas per hour based upon a pressure drop of 0 5 iwg and 0 6 specific gravity gas Gas connection The gas supply ...

Page 78: ... as is The hollow grommet should properly fit between the drain pan hole and fuel pipe outside diameter Apply proper sealant across the grommets to seal the gap across its internal and external diameter Figure 35 The hollow grommet Component Description A Drain pan B Hollow grommet Component Description C Bottom intake fuel supply kit Flue gas chimney installation On units that have optional stage...

Page 79: ...tings See Figure 38 Piping locations can also be found in the submittal data A field provided and installed valve can also be used as long as the valve matches the specifications ratings of the factory installed valve Connect the modulating valve to the customer terminal board using the hot water steam heating valve output HTGV O at terminal W32 See Figure 37 Figure 37 Hot water steam heating valv...

Page 80: ...alve can also be used as long as the valve matches the specifications ratings of the factory installed valve Connect the modulating valve to the customer terminal board using the hot water steam heating valve output HTGV O at terminal W32 See Figure 37 Humidifier The rooftop unit can be ordered with an optional factory installed steam humidifier manifold The steam control valve Y wye type strainer...

Page 81: ... preclude use of economizers or outdoor fresh air intakes CAUTION Elbows discharge damper and other abrupt flow area changes installed directly at the fan outlet will cause system losses These losses must be taken into account during the design phase and must be added to any field measurements The supply and return air duct connections at the unit should be made with flexible joints to minimize no...

Page 82: ...n Bottom Left Right Bottom Left Left Right Side Front Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Cooling only Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Cooling with discharge through heat section Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Cooling with heat and discharge plenum or cooling with downstream section and...

Page 83: ...5 and Figure 46 which details the removal of the hold down brackets and securing the side pieces to the hood Outside air hood Note The 25 ton to 30 ton units only have two hoods The 40 ton to 80 ton units have three hoods as shown in Figure 45 1 Remove the hold down brackets from the air hoods one on each side of each hood There will be either four or six total hold down brackets depending on the ...

Page 84: ...stalled Both return air filters and final filters can be selected Return air filters are installed in the return airstream before the evaporator coil Final filters are installed in the supply airstream after the cooling and heating components Filters must be kept clean Dirty filters reduce the overall capacity of the unit and could result in cooling or heating safety lockouts The unit should never...

Page 85: ... close evaporator supply fan or filter cabinet door and switch the UV light reset switch on the display panel to ON see Figure 26 and Figure 27 Condensate drain The unit must have a condensate drain installed The connection for the condensate drain is on the right side of the unit For the correct location of the drain connection refer to the submittal data The drain connection is 1 1 4 in FPT The ...

Page 86: ...RIOR TO OPERATION OF THE FANS During installation and before starting up the unit the supply exhaust and return fan isolator spring tie down bolts must be removed For each variation and cabinet size of the exhaust return supply fans there are four tie down bolts washers and spacers to remove and discard two on both sides of the fan Refer to Figure 49 through Figure 56 Figure 49 25 ton to 50 ton su...

Page 87: ...Figure 50 60 ton to 80 ton supply fan tie down bolts Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 87 Tempmaster ...

Page 88: ...Figure 51 25 ton to 80 ton front side exhaust fan tie down bolts Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 88 Tempmaster ...

Page 89: ...Figure 52 25 ton to 50 ton front left right return fan Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 89 Tempmaster ...

Page 90: ...ottom return fan tie down bolts left OA Figure 55 60 ton to 80 ton bottom return fan tie down bolts right OA Remove bolt from each corner four total of the fan skid as shown in Figure 56 Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 90 Tempmaster ...

Page 91: ...nces of operation the BACnet points list and the faults list refer to the Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units R 410A Start Up and Operation Guide 5881376 TSG A that shipped with the unit Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 91 Tempmaster ...

Page 92: ...r maintenance on the rooftop unit WARNING Before performing service or maintenance operations on this unit turn off the main power switch to the unit Electrical shock could cause personal injury Improper adjustment alteration service or maintenance can cause injury or property damage For assistance or additional information consult a qualified service agency or the gas supplier Condenser safety ti...

Page 93: ...nation CAUTION When using the factory installed valve package to perform a pump down of the refrigerant system do not allow the scroll compressor to pump the low side into a vacuum Pump down should be stopped when suction pressure reaches 10 psig The remaining refrigerant must be removed using proper recovery methods Allowing a scroll compressor to pump into a vacuum causes internal arcing of the ...

Page 94: ...e out can also be used When brushing dirt and debris off the face of the heat exchanger a clean unused soft bristle not wire brush can be used Take care to prevent damage to the coil The brush should not be contaminated with other metallic debris such as copper shavings Water pressure for cleaning should not exceed the pressure of the spray from a common garden hose with attached nozzle Use a gent...

Page 95: ...o prevent grease contamination Lubrication preparation 1 Select the appropriate service condition from Table 56 2 Select the lubrication interval from Table 57 3 Adjust the lubrication interval with the appropriate multiplier from Table 56 4 Select volume of grease from Table 58 If the unit runs at standard service intervals of 8 hours per day at 1 770 RPM the motor would require greasing every 2 ...

Page 96: ...10 incl 132 5 500 hours 12 000 hours 18 000 hours 22 000 hours 120 280 incl 180 3 600 hours 9 500 hours 15 000 hours 18 000 hours 280 360 incl 225 2 200 hours 7 400 hours 12 000 hours 15 000 hours 360 5 800 incl 400 2 200 hours 3 500 hours 7 400 hours 10 500 hours 324T 200 3 000 hours Note Re lubrication intervals are for ball bearings For vertically mounted motors and roller bearings divide the r...

Page 97: ... 44 1 4 77 Frame 210 132 6210 0 32 9 0 0 64 2 1 80 Frame 250 160 6213 0 49 14 0 0 99 3 3 Note 324T TECO motor applicable only to 60 ton to 80 ton return fan Table 59 25 ton to 80 ton fan bearing lubrication schedule months for ball bearing pillow blocks Speed RPM Shaft diameter in 500 1000 1500 2000 2500 3000 3500 4000 4500 1 2 1 11 16 6 6 5 3 3 2 2 2 1 1 15 16 2 7 16 6 5 4 2 2 1 1 2 1 4 1 4 2 11 ...

Page 98: ...s one fixed and one float 1 15 16 60 ton to 80 ton Normal duty SC Pillow block setscrew ball bearing 2 11 16 Condensate drain Inspect and flush the trap drain lines when required Protect the trap drain lines from freezing Note The unit must be properly trapped and charged with water before the units are started Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Gui...

Page 99: ...sually inspect the float on the switch to ensure it is free of any debris or scale accumulation Figure 64 Installation on drain pan Component Description A Clip or bracket B Drain pan C Float switch Ultraviolet lights The unit controller issues a warning to replace the UV lights after 9 000 hours of unit runtime which is equal to approximately 1 year CAUTION Take care when handling the UV lights O...

Page 100: ...sheaves This can permanently damage the belts Figure 66 Loosen adjusting nuts on motor base Filter drier replacement The filter drier must be replaced any time work is performed on the refrigerant circuit The rooftop unit comes with sealed type non replaceable core standard or optional replaceable core If the unit is not equipped with the optional valve package suction discharge and liquid line va...

Page 101: ... is based on ASHRAE 62 1 2016 classifications 2 For Class 4 the manufacturer recommends inspecting and cleaning once or twice per year to maintain optimal performance CAUTION Do not use acid based cleaners aromatic solvents temperatures in excess of 170 0 F 76 6 C or steam to clean the ERW segments Follow these recommended cleaning procedures when cleaning is required For a buildup of dry contamin...

Page 102: ... Sliding the ERW Note Low and high CFM ERWs can slide a maximum of 26 in 66 cm outside the unit Figure 70 Sliding high CFM ERW Back Figure 71 Sliding high CFM ERW Front Tempmaster Omni Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide 102 Tempmaster ...

Page 103: ...heel segment that will be removed to the top of the wheel 3 Use a flathead screwdriver to unlock and open the two segment retaining latches at the outer corners of the segment being removed 4 Use a 3 16 in Allen wrench to remove the nose bolt securing the segment to the hub plate 5 Slide out the outer portion of the wheel segment before disengaging the nose Note A flathead screwdriver may be used ...

Page 104: ...he outer portion of the segment into the wheel frame 3 Use a 3 16 in Allen wrench to install the nose bolt to secure the wheel segment to the hub 4 Close the segment retaining latches on the outer corners of the wheel segment to secure it inside the wheel 5 Rotate the first segment 180 to install the opposing wheel segment to rebalance the wheel 6 Repeat until all of the remaining wheel segments a...

Page 105: ...tment control counterclockwise just until the green NORM indicator illuminates At this point the phase monitor is the most sensitive to irregular power line conditions If nuisance tripping occurs rotate the adjustment control slightly farther counterclockwise Compressor replacement When it is necessary to replace a compressor in the unit follow these steps 1 Determine if the compressor failure was...

Page 106: ...conduit nipple 3 Install the power and control wiring conduit nipples with the applicable nuts and proper seal 4 Inside the unit run the wiring along the floor to the control panel Drill any additional holes necessary through internal components and install conduit nipples hardware and seals as needed until the wiring reaches the control panel Figure 74 The control panel on a rooftop Note A 40 ton...

Page 107: ...e 77 and position the drill to align with the symbol Figure 77 Bend radius for power wiring Note a This distance is determined by the data in Table 312 6 A in the 2017 National Electric Code NFPA 70 b This distance is determined by the data in Table 312 6 B in the 2017 National Electric Code NFPA 70 4 Bore the hole depending on the size of the gland and the size of wire required 5 Use tight liquid...

Page 108: ... to install To avoid damaging door tie backs install them after the unit is installed in its final location 2 To install door tie back brackets a Align with holes in base rail b Bracket can be mounted either way c Use provided screws to mount all brackets 3 It is important that all brackets are mounted to provide a catch for the chain to hold the door open Figure 78 Item locations Tempmaster Omni ...

Page 109: ... d autres dispositif de chauffage à gaz qui génèrent une condensation Un échangeur de chaleur en acier inoxydable est également disponible en option Le chauffage à gaz totalement modulante et les étapes de contrôle de capacité supérieure offrent des performances de conception supérieures tout en maintenissant un comfort optimal pour les occupants L option de chauffage au gaz inclut une réduction n...

Page 110: ...ébit d air min à max m3 s 2 36 5 66 3 8 9 44 5 6 11 32 6 6 15 10 6 6 15 10 Table 64 Tableau Données du poids du chauffage à gaz Le Modèle 25 kg 30 kg 40 kg 50 kg 60 kg 70 kg 80 kg Chaleur gazeuse en phase ou modulante acier aluminisé ou inoxydable 250 MBH 118 118 500 MBH 173 173 181 181 162 162 162 750 MBH 259 259 268 268 1000 MBH 277 277 277 1250 MBH 409 409 1500 MBH 390 390 390 Les dégagements L...

Page 111: ...opane peut être commandé en option L entrepreneur chargé de l installation est responsable du bon dimensionnement de la tuyauterie d admission de gaz Le dimensionnement correct dépend du pied cube par heure de débit de gaz requis de la densité du gaz et de la longueur de la tuyauterie Code d installation pour les gaz naturelles et code d installation pour le propane CSA B149 1 Voir le Table 65 La ...

Page 112: ...ntrer dans l unité par un orifice d accès inférieur ou latéral Faites fonctionner la conduite d alimentation en gaz à l intérieur du bâtiment et pénétrez dans le toit à proximité de l entrée de gaz ou installez la conduite exposée sur le toit du bâtiment Si la pression dans la conduite d alimentation en gaz est supérieure à 0 5 psig ou 13 5 iwg un détendeur de taille appropriée doit être installé ...

Page 113: ...au savonneuse Un taraudage obturé avec un filetage national NPT de 3 175 millimètres doit être installé im médiatement en amont du raccordement de l alimentation en gaz à lachaudière Installation de cheminée de gaz de combustion Sur les appareils dotes d une modulante de chaleur à gaz l installation d une cheminée est necessaire Le gaz de combustion est cheminée en vrac dans la section de libérati...

Page 114: ...6 30 1 Note Pour un fonctionnement correct la pression du gaz naturel fournie par le bâtiment doit être comprise entre 7 et 14 iwg la pression pour le propane liquide doit être comprise entre 12 et 14 iwg L élévation de température peut être calculée là où l élévation de température capacité d entrée de gaz kW x 0 81 m3 s x 1 085 La température maximale de l air sortant ne doit pas dépasser 48 8 C...

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