Carrier 40RMS008-034, 40RMQ008-028, 40RM007-034 User Manual

Packaged Air-Handling Units

Installation, Start-Up and

Service Instructions

40RM007-034

40RMQ008-028

40RMS008-034

50/60 Hz

CONTENTS

Page

SAFETY CONSIDERATIONS ...................... 1

PRE-INSTALLATION.............................1,2

Moving and Storage .............................. 2

Rigging ..........................................2

INSTALLATION ................................ 2-25

General .......................................... 2

Uncrating ........................................ 2

Accessories...................................... 2

Unit Positioning .................................13

Unit Isolation....................................13

Refrigerant and Chilled Water

Piping Access..................................13

Refrigerant Piping...............................13

Chilled Water Piping ............................ 19

Condensate Drain ...............................20

Fan Motors and Drives .......................... 20

Power Supply and Wiring .......................21

Connecting Ductwork ........................... 24

Return-Air Filters................................ 24

START-UP ....................................... 25

SERVICE ..................................... 25-45

Panels...........................................25

Fan Motor Lubrication........................... 25

Fan Shaft Bearings..............................25

Centering Fan Wheel ............................ 26

Fan Shaft Position Adjustment .................. 26

Individual Fan Wheel Adjustment ...............26

Fan Belts ........................................ 26

Fan Rotation .................................... 26

Fan Pulley Alignment ...........................27

Pulley and Drive Adjustment ....................27

Condensate Drains..............................27

Return-Air Filters................................ 27

Chilled Water Coil Freeze Protection ............ 27

Coil Removal....................................27

Cleaning Cooling Coil ...........................27

Cleaning Insulation .............................27

Replacing Filters ................................ 28

START-UP CHECKLIST ...................CL-1,CL-2

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electric shock, or other occurrences which may injure you or damage your property. Consult qualified installer or service agency for information or assistance. The qualified installer or agency must use only factory-authorized kits or accessories when modifying this product.

Recognize safety information. This is the safety-alert symbol ( ). When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.

Understand the signal words — DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. Danger identifies the most serious hazards which will result in severe personal injury or death. Warning indicates a condition that could result in personal injury. Caution is used to identify unsafe practices which would result in minor personal injury or product and property damage.

Installing, starting up, and servicing this equipment can be hazardous due to system pressures, electrical components and equipment location (elevated structures, etc.).

Only trained, qualified installers and service mechanics should install, start up, and service this equipment.

Untrained personnel can perform basic maintenance functions such as cleaning coils, and cleaning and replacing filters. All other operations should be performed by trained service personnel.

When working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment.

• Follow all safety codes.

• Wear safety glasses and work gloves.

• Use care in handling, rigging, and setting bulky

equipment.

Be sure all power to equipment is shut off before performing maintenance or service. More than one disconnect may be present. Failure to do so may result in personal injury or damage to the unit.

PRE-INSTALLATION

1. The power supply (v, ph, and Hz) must correspond to that specified on unit rating plate.

2. The electrical supply provided by the utility must be sufficient to handle load imposed by this unit.

3. Refer to Installation, General section (page 2) and Fig. 1A-1C for locations of electrical inlets, condensate drain, duct connections, and required clearances before setting unit in place.

4. This installation must conform with local building codes and with the NEC (National Electrical Code) or ANSI (American National Standards Institute)/NFPA (National Fire Protection Association) latest revision. Refer to provincial and local plumbing or wastewater codes and other applicable local codes.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1 4 Tab 3c 2e

PC 111 Catalog No. 534-00003 Printed in U.S.A. Form 40RM-23SI Pg 1 12-04 Replaces: 40RM-22SI

Moving and Storage — To transfer unit from truck to

storage site, use a fork truck. Do not stack units more than 2 high during storage. If unit is to be stored for more than 2 weeks before installation, choose a level, dry storage site free from vibration. Do not remove plastic wrap or skid from unit until final installation.

Rigging — All 40RM Series units can be rigged by using

the shipping skid. Units are shipped fully assembled. Do not remove shipping skids or protective covering until unit is ready for final placement; damage to bottom panels can result. Use slings and spreader bars as applicable to lift unit.

INSTALLATION

General —

clearance and airflow. For units equipped with an economizer, refer to the accessory installation instructions for additional clearance requirements. Be sure floor, wall, or ceiling can

Allow 21/2ft at front and side of unit for service

support unit weight (Tables 1A-1F). See Fig. 1A-1C for dimensions.

Uncrating — Move unit as near as possible to final loca-

tion before removing shipping skid.

Remove metal banding, top skid, and plastic wrap. Examine unit for shipping damage. If shipping damage is evident, file claim with transportation agency. Remove base skid just prior to actual installation.

Check nameplate information against available power supply and model number description in Fig. 2.

NOTE: Be sure to remove the styrofoam shipping pad from the thermostatic expansion valve (TXV). Verify that it has been removed. See Fig. 3.

Accessories — Refer to instructions shipped with each

accessory for specific information.

Table 1A — 40RM Physical Data, English — Cooling Units

UNIT 40RM 007 008 012 014 016 024 028 034

NOMINAL CAPACITY (Tons) 67

10 121/

15 20 25 30

OPERATING WEIGHT (lb)

Base Unit with TXV 381 385 405 670 685 690 1020 1030 Plenum 175 175 175 225 225 225 325 325

FANS

Qty...Diam. (in.) 1...15 1...15 1...15 2...15 2...15 2...15 2...18 2...18 Nominal Airflow (cfm) 2400 3000 4000 5000 6000 8,000 10,000 12,000

Airflow Range (cfm)

Nominal Motor Hp (Standard Motor)

18003000

22503750

30005000

37506250

45007500

6,000-

10,000

7,500-

12,500

9,000-

15,000

208/230-1-60 1.3 2.4 — — — — — — 208/230-3-60 and 460-3-60 2.4 2.4 2.4 2.9 3.7 5.0 7.5 10.0 575-3-60 1.0 2.0 2.0 3.0 3.0 5.0 7.5 10.0 230-3-50, 400-3-50 2.4 2.4 2.9 2.9 2.9 5.0 7.5 10.0

Motor Speed (rpm)

208/230-1-60 1725 1725 — — — — — — 208/230-3-60 and 460-3-60 1725 1725 1725 1725 1725 1745 1745 1745 575-3-60 1725 1725 1725 1725 1725 1745 1755 1755 230-3-50, 400-3-50 1425 1425 1425 1425 1425 1425 1425 1425

REFRIGERANT R-22

Operating charge (lb) (approx per circuit)*

3.0 3.0 1.5/1.5 2.0/2.0 2.5/2.5 3.5/3.5 4.5/4.5 5.0/5.0

DIRECT-EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins

Max Working Pressure (psig) 435 Face Area (sq ft) 6.67 8.33 10.0 13.25 17.67 19.88 24.86 29.83 No. of Splits 1122222 2 No. of Circuits per Split (3 Row/4 Row) 12/12 1 5/15 9/9 9/12 12/16 13/18 15/20 18/24 Split Type...Percentage — — Face...50/50 Fins/in. 15 15 17 15 15 17 15 15

STEAM COIL

Max Working Pressure (psig at 260 F) 20 Total Face Area (sq ft) 6.67 6.67 6.67 13.33 13.33 13.33 15.0 15.0 Rows...Fins/in. 1...9 1...9 1...9 1...10 1...10 1...10 1...10 1...10

HOT WATER COIL

Max Working Pressure (psig) 150 Total Face Area (sq ft) 6.67 6.67 6.67 13.33 13.33 13.33 15.0 15.0 Rows...Fins/in. 2...8.5 2...8.5 2...8.5 2...8.5 2...8.5 2...8.5 2...12.5 2...12.5 Water Volume

(gal) 8.3 13.9 14.3

) 1.1 1.85 1.90

(ft

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 1...1 DX Coil — Liquid Refrigerant (ODF) 1...5/

Steam Coil, In (MPT) 1...21/ Steam Coil, Out (MPT) 1...1/ Hot Water Coil, In (MPT) 1...11/ Hot Water Coil, Out (MPT) 1...1 Condensate (PVC) 1...1

/81...11/82...11/

1...11/

2...11/

2 2

2...11/

/4 ODM/1 IDF

2...5/

1...21/

1...11/

2...11/

2 2

1...2

2...13/

FILTERS Throwaway — Factory Supplied

Quantity...Size (in.) 4...16 x 24 x 2 Access Location Either Side

4...16 x 20 x 2

4...16 x 24 x 2

4...20 x 24 x 2

4...20 x 25 x 2

LEGEND

DX — Direct Expansion TXV — Thermostatic Expansion Valve

*Units are shipped without refrigerant charge.

Table 1B — 40RMQ Physical Data, English — Heat Pump Units

UNIT 40RMQ 008 012 016 024 028 NOMINAL CAPACITY (Tons) 7

10 15 20 25

OPERATING WEIGHT (lb)

Base Unit with TXV 385 427 713 720 1050 Plenum 175 175 225 140 180

FANS

Qty...Diam. (in.) 1...15 1...15 2...15 2...15 2...18 Nominal Airflow (cfm) 3000 4000 6000 8000 10,000 Airflow Range (cfm) 2250-3750 3000-5000 4500-7500 6000-10,000 7500-12,500 Nominal Motor Hp (Standard Motor)

208/230-1-60 2.4———— 208/230-3-60 and 460-3-60 2.4 2.4 3.7 5.0 7.5 575-3-60 2.0 2.0 3.0 5.0 7.5 230-3-50, 400-3-50 2.4 2.9 2.9 5.0 7.5

Motor Speed (rpm)

208/230-1-60 1725 — — — — 208/230-3-60 and 460-3-60 1725 1725 1725 1745 1745 575-3-60 1725 1725 1725 1745 1755 230-3-50, 400-3-50 1425 1425 1425 1425 1425

REFRIGERANT R-22

Operating charge (lb) (approx per circuit)*

3.0 2.0/2.0 3.0/3.0 3.5/3.5 4.5/4.5

DIRECT-EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins

Max Working Pressure (psig) 435

Face Area (sq ft) 8.33 10.0 19.88 19.88 24.86 No. of Splits 12 22 2 No. of Circuits per Split 15 9 18 18 24/16 Split Type...Percentage — Face...50/50 Face...60/40 Rows...Fins/in. 3...15 4...15 4...15 4...15 4...15

STEAM COIL

Max Working Pressure (psig at 260 F) 20 Total Face Area (sq ft) 6.67 6.67 13.33 13.33 15.0 Rows...Fins/in. 1...9 1...9 1...10 1...10 1...10

HOT WATER COIL

Max Working Pressure (psig) 150 Total Face Area (sq ft) 6.67 6.67 13.33 13.33 15.0 Rows...Fins/in. 2...8.5 2...8.5 2...8.5 2...8.5 2...12.5 Water Volume

(gal) 8.3 13.9

) 1.1 1.85

(ft

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Vapor (ODF) 1...1 DX Coil — Liquid Refrigerant (ODF) 1...5/

Steam Coil, In (MPT) 1...21/ Steam Coil, Out (MPT) 1...11/ Hot Water Coil, In (MPT) 1...11/

Condensate (PVC) 1...11/4 ODM/1 IDF

FILTERS Throwaway — Factory Supplied

Quantity...Size (in.)

Access Location

2 2 2 2

4...16 x 24 x 2 Either Side Right or Left Side

2...11/

2...5/

1...11/

2 2

2...11/

1...21/

1...11/

2...5/

2 2

1...2

2...11/

2...13/

2...5/

1...21/

1...11/

1...2

1...2Hot Water Coil, Out (MPT) 1...11/

2 2

4...16 x 20 x 2 4...20 x 24 x 2

4...16 x 24 x 2 4...20 x 25 x 2

LEGEND

DX — Direct Expansion TXV — Thermostatic Expansion Valve

*Units are shipped without refrigerant charge.

Table 1C — 40RMS Physical Data, English — Chilled Water Units

UNIT 40RMS 008 010 012 014 016 024 028 034 NOMINAL CAPACITY (Tons) 7 OPERATING WEIGHT (lb)

Base Unit 390 391 391 661 677 683 1035 1042 Plenum 175 175 175 225 225 225 325 325

FANS

Qty...Diam. (in.) 1...15 1...15 1...15 2...15 2...15 2...15 2...18 2...18 Nominal Airflow (cfm) 3000 3400 4000 5000 6000 8000 10,000 12,000 Airflow Range (cfm) 2250-3750 2250-4250 3000-5000 3750-6250 4500-7500 6000-10,000 7500-12,500 9000-15,000 Nominal Motor Hp (Standard Motor)

208/230-1-60 2.4 2.4 — — — — — — 208/230-3-60 and 460-3-60 2.4 2.4 2.4 2.9 3.7 5.0 7.5 10.0 575-3-60 2.0 2.0 2.0 3.0 3.0 5.0 7.5 10.0 230-3-50 and 400-3-50 2.4 2.4 2.9 2.9 2.9 5.0 7.5 10.0

Motor Speed (rpm)

208/230-1-60 1725 1725 — — — — — — 208/230-3-60 and 460-3-60 1725 1725 1725 1725 1725 1745 1745 1745 575-3-60 1725 1725 1725 1725 1725 1745 1755 1755 230-3-50 and 400-3-50 1425 1425 1425 1425 1425 1425 1425 1425

CHILLED WATER COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins

Max Working Pressure (psig) 435 Face Area (sq ft) — Upper 8.3 9.0 9.9 8.3 8.3 11.0 12.4 15.5 Face Area (sq ft) — Lower — — — 5.5 8.3 8.3 12.4 12.4 Rows...Fins/in. 3...15

STEAM COIL

Max Working Pressure (psig at 260 F) Total Face Area (sq ft) 6.67 6.67 6.67 13.33 13.33 13.33 15.0 15.0 Rows...Fins/in. 1...9 1...9 1...9 1...10 1...10 1...10 1...10 1...10

HOT WATER COIL

Max Working Pressure (in. wg) Total Face Area (sq ft) 6.67 6.67 6.67 13.33 13.33 13.33 15.0 15.0 Rows...Fins/in. 2...8.5 2...8.5 2...8.5 2...8.5 2...8.5 2...8.5 2...12.5 2...12.5 Water Volume

(gal) 8.3 13.9 14.3

(ft

) 1.1 1.85 1.90

PIPING CONNECTIONS,

Quantity...Size (in.)

Chilled Water — In 1...1 Chilled Water — Out 1...1 Steam Coil, In (MPT) 1...2 Steam Coil, Out (MPT) 1...11/ Hot Water Coil, In (MPT) 1...11/ Hot Water Coil, Out (MPT) 1...11/ Condensate (PVC) 1...1

FILTERS Throwaway — Factory Supplied

Quantity...Size (in.) Access Location Either Side

81/

10 121/

15 20 25 30

150

/8 O D F 1...13/8 ODF 2...13/8 ODF 2...13/8 ODM 2...13/8 ODM 2...13/8 ODM 2...21/8 ODM 2...21/8 ODM

2 2 2 2

4...16 x 24 x 2

1...11/

2 2

/4 ODM/1 IDF

4...16 x 20 x 2 4...20 x 24 x 2

4...16 x 24 x 2 4...20 x 25 x 2

1...21/

1...11/

2 2

1...2

Table 1D — 40RM Physical Data, SI — Cooling Units

UNIT 40RM 007 008 012 014 016 024 028 034 NOMINAL CAPACITY (kW) 21 26 35 43 52 70 87 105 OPERATING WEIGHT (kg)

Base Unit with TXV 173 175 184 304 311 313 463 467 Plenum 80 80 80 102 102 102 148 148

FANS

Qty...Diam. (mm) 1...381 1...381 1...381 2...381 2...381 2...381 2...457 2...457 Nominal Airflow (L/s) 1133 1604 1888 2360 2831 3775 4719 5663 Airflow Range (L/s) 850-1416 1203-2006 1416-2360 1770-2949 2124-3539 2831-4719 3539-5899 4247-7079 Nominal Motor kW (Standard Motor)

208/230-1-60 0.971.79—————— 208/230-3-60 and 460-3-60 1.79 1.79 1.79 2.16 2.76 3.73 5.60 7.46 575-3-60 0.75 1.49 1.49 2.24 2.24 3.73 5.60 7.46 230-3-50, 400-3-50 1.79 1.79 2.16 2.16 2.16 3.73 5.60 7.46

Motor Speed (r/s)

208/230-1-60 28.828.8—————— 208/230-3-60 and 460-3-60 28.8 28.8 28.8 28.8 28.8 29.1 29.1 29.1 575-3-60 28.8 28.8 28.8 28.8 28.8 29.1 29.3 29.3 230-3-50, 400-3-50 23.8 23.8 23.8 23.8 23.8 23.8 23.8 23.8

REFRIGERANT R-22

Operating charge (kg) (approx per circuit)*

DIRECT-EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins

Max Working Pressure (kPag) 2999 Face Area (sq m) 0.62 0.77 0.93 0.93 1.64 1.85 2.30 2.77 No. of Splits 11222222 No. of Circuits per Split (3 Row/4 Row) 12/12 15/15 9/9 9/12 12/16 13/18 15/20 18/24 Split Type...Percentage — — Face...50/50 Fins/m 591 591 670 591 591 670 591 591

STEAM COIL

Max Working Pressure (kPag at 126 C) 138 TotalFaceArea(sqm) 0.62 0.62 0.62 1.24 1.24 1.24 1.39 1.39 Rows...Fins/m 1...355 1...355 1...355 1...394 1...394 1...394 1...394 1...394

HOT WATER COIL

Max Working Pressure (kPag) 1034 TotalFaceArea(sqm) 0.62 0.62 0.62 1.24 1.24 1.24 1.39 1.39 Rows...Fins/m 2...335 2...335 2...335 2...335 2...335 2...335 2...493 2...493 Water Volume

(L) 31.4 52.6 54.1

) 0.031 0.052 0.054

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 1...1 DX Coil — Liquid Refrigerant (ODF) Steam Coil, In (MPT) Steam Coil, Out (MPT) 1...1 Hot Water Coil, In (MPT) Hot Water Coil, Out (MPT) Condensate (PVC) 1...1

FILTERS Throwaway — Factory Supplied

Quantity...Size Access Location Either Side

LEGEND

DX — Direct Expansion TXV — Thermostatic Expansion Valve

*Units are shipped without refrigerant charge.

1.36 1.36 0.68/0.68 0.90/0.90 1.13/1.13 1.59/1.59 2.04/2.04 2.27/2.27

1...11/

1...5/

1...21/

1...11/

4...406 x 610 x 51

2...11/

1...11/

2...11/

2 2

2...11/

/4 ODM/1 IDF

4...406 x 508 x 51 4...508 x 610 x 51

4...406 x 610 x 51 4...508 x 635 x 51

2...5/

1...21/

1...11/

2 2

2...11/

1...2

2...13/

Table 1E — 40RMQ Physical Data, SI — Heat Pump Units

UNIT 40RMQ 008 012 016 024 028 NOMINAL CAPACITY (kW) 26 35 52 70 87 OPERATING WEIGHT (kg)

Base Unit with TXV 175 194 323 326 477 Plenum 80 80 102 44 44

FANS

Qty...Diam. (mm) 1...381 1...381 2...381 2...381 2...457 Nominal Airflow (L/s) 1604 1888 2831 3775 4719 Airflow Range (L/s) 1203-2006 1416-2360 2124-3539 2831-4719 3539-5899 Nominal Motor kW (Standard Motor)

208/230-1-60 1.79 — — — — 208/230-3-60 and 460-3-60 1.79 1.79 2. 76 3.73 5.60 575-3-60 1.49 1.49 2.24 3.73 5.60 230-3-50, 400-3-50 1.79 2.16 2.16 3.73 5.60

Motor Speed (r/s)

208/230-1-60 28.8 — — — — 208/230-3-60 and 460-3-60 28.8 28.8 28. 8 29.1 29.1 575-3-60 28.8 28.8 28.8 29.1 29.3 230-3-50, 400-3-50 23.8 23.8 23.8 23.8 23.8

REFRIGERANT R-22

Operating charge (kg) (approx per circuit)*

DIRECT-EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine-Wave Fins

Max Working Pressure (kPag) 2999 Face Area (sq m) 0.77 0.93 1.85 1.85 2.30 No. of Splits 12222 No. of Circuits per Split 15 9 18 18 24/16 Split Type...Percentage — Face...50/50 Face...60/40 Rows...Fins/m 3...591 4...591 4...591 4...591 4...591

STEAM COIL

Max Working Pressure (kPag at 126 C) 138 Total Face Area (sq m) 0.62 0.62 1.24 1.24 1.39 Rows...Fins/m 1...355 1...355 1...394 1...394 1...394

HOT WATER COIL

Max Working Pressure (kPag) 1034 Total Face Area (sq m) 0.62 0.62 1.24 1.24 1.39 Rows...Fins/m 2...335 2...335 2...335 2...335 2...493 Water Volume

(L) 31.4 52.6

) 0.031 0.052

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Vapor (ODF) 1...1 DX Coil — Liquid Refrigerant (ODF) 1...5/ Steam Coil, In (MPT) 1...21/ Steam Coil, Out (MPT) 1...11/ Hot Water Coil, In (MPT) 1...11/ Hot Water Coil, Out (MPT) 1...1 Condensate (Male PVC) 1...1

FILTERS Throwaway — Factory Supplied

Quantity...Size Access Location Either Side Right or Left Side

LEGEND

DX — Direct Expansion TXV — Thermostatic Expansion Valve

*Units are shipped without refrigerant charge.

1.36 0. 91/0.91 1.36/1.36 1.59/1.59 2.04/2.04

2 2 2

4...406 x 610 x 51

2...11/

2...5/

1...21/

1...11/

2 2 2 2

4...406 x 508 x 51

4...406 x 610 x 51

/4 ODM/1 IDF

2...11/

2...5/

1...21/

1...11/

1...2

4...406 x 610 x 51

4...406 x 508 x 51

2 2

4...406 x 610 x 51

4...508 x 635 x 51

2...13/

Table 1F — 40RMS Physical Data, SI — Chilled Water Units

UNIT 40RMS 008 010 012 014 016 024 028 034 NOMINAL CAPACITY (kW) 26 29 35 43 52 70 87 105 OPERATING WEIGHT (kg)

Base Unit 177 177 177 300 307 310 469 473 Plenum 80 80 80 102 102 102 148 148

FANS

Qty...Diam. (mm) 1...381 1...381 1...381 2...381 2...381 2...381 2...457 2...457 Nominal Airflow (L/s) 1416 1605 1888 2360 2831 3775 4719 5663 Airflow Range (L/s) 1062-1770 1204-2006 1416-2360 1770-2949 2124-3539 2831-4719 3539-5899 4247-7079 Nominal Motor kW (Standard Motor)

208/230-1-60 1.791.79—————— 208/230-3-60, 460-3-60 1.79 1.79 1.79 1.79 2.76 3.73 5.60 7.46 575-3-60 1.49 1.49 1.49 1.49 2.24 3.73 5.60 7.46 230-3-50, 400-3-50 1.79 1.79 2.16 2.16 2.16 3.73 5.60 7.46

Motor Speed (r/s)

208/230-1-60 28.828.8—————— 208/230-3-60, 460-3-60 28.8 28.8 28.8 28.8 28.8 29.1 29.1 29.1 575-3-60 28.8 28.8 28.8 28.8 28.8 29.1 29.3 29.3 230-3-50, 400-3-50 23.8 23.8 23.8 23.8 23.8 23.8 23.8 23.8

CHILLED WATER COIL Enhanced Copper Tubes, Aluminum Sine-Wa ves

Max Working Pressure (kPag) 2999 Face Area (sq m) — Upper 0.77 0.84 0.91 0.77 0.77 1.02 1.15 1.44 Face Area (sq m) — Lower — — — 0.51 0.77 0.77 1.15 1.15 Rows...Fins/m 3...591 3...591 3...591 3...591 3...591 3...591 3...591 3...591

STEAM COIL

Max Working Pressure

(kPag at 126 C)

TotalFaceArea(sqm) 0.62 0.62 0.62 1.24 1.24 1.24 1.39 1.39 Rows...Fins/m 1...355 1...355 1...355 1...355 1...394 1...394 1...394 1...394

HOT WATER COIL

Max Working Pressure (kPag) 1034 TotalFaceArea(sqm) 0.62 0.62 0.62 1.24 1.24 1.24 1.39 1.39 Rows...Fins/m 2...335 2...335 2...335 2...335 2...335 2...335 2...493 2...493 Water Volume

(L) 31.4 52.6 54.1

) 0.031 0.052 0.054

PIPING CONNECTIONS,

Quantity...Size (in.)

Chilled Water — In

Chilled Water — Out

Steam Coil, In (MPT)

Steam Coil, Out (MPT) 1...1

Hot Water Coil, In (MPT) Hot Water Coil, Out (MPT) Condensate (PVC) 1...1

FILTERS Throwaway — Factory Supplied

Quantity...Size (mm)

1...1 ODF

1...13/8 ODF

1...21/

1...11/

4...406 x 610 x 51

2...13/8 ODF

1...11/

2...13/8 ODM 2...13/8 ODM 2...13/8 ODM 2...21/8 ODM 2...21/8 ODM

2 2

Access Location Either Side

138

1...21/

1...11/

1...2

/4 ODM/1 IDF

4...406 x 508 x 51 4...508 x 610 x 51

4...406 x 610 x 51 4...508 x 635 x 51

1...2

LEGEND

TXV — Thermostatic Expansion Valve NOTES:

1. Dimensions in [ ] are in millimeters.

2. Direction of airflow.

3. Recomm ended clearance:

• Rear: 3 in. (76 mm)

• Front: 2 ft, 6 in. (762 mm)

• Right Side: 2 ft, 6 in. (762 mm)

• Left Side: 2 ft, 6 in. (762 mm)

• Local codes or jurisdiction may prevail.

4. Liquid piping not supplied by Carrier.

5. Duct flange is factory supplied and field installed.

6. 40RMS units may require alternate or additional field-fabricated piping access holes.

Fig. 1A — Dimensions — Sizes 007-012

UNIT

40RM007 381 (173) 40RM008 385 (175) 40RM012 405 (184) 40RMQ008 385 (175) 40RMQ012 427 (194) 40RMS008 390 (177) 40RMS010 391 (177) 40RMS012 391 (177)

UNIT WEIGHT

lb (kg)

LEGEND

TXV — Thermostatic Expansion Valve NOTES:

1. Dimensions in [ ] are in millimeters.

2. Direction of airflow.

3. Recommended clearance:

• Rear: 3 in. (76 mm)

• Front: 2 ft, 6 in. (762 mm)

• Right Side: 2 ft, 6 in. (762 mm)

• Left Side: 2 ft, 6 in. (762 mm)

• Local codes or jurisdiction may prevail.

4. Liquid piping not supplied by Carrier.

5. Duct flange is factory-supplied and

field-installed.

6. 40RMQ016,024 and 40RMS units may

require alternate or additional fieldfabricated piping access holes.

Fig. 1B — Dimensions — Sizes 014-024

UNIT

40RM014 670 (304) 40RM016 685 (311) 40RM024 690 (313) 40RMQ016 713 (323) 40RMQ024 720 (326) 40RMS014 661 (300) 40RMS016 677 (307) 40RMS024 683 (310)

UNIT WEIGHT

lb (kg)

LEGEND

TXV — Therm ost atic Exp ansion Valve NOTES:

1. Dimen sions in [ ] are in millimeters.

2. Direction of airflow.

3. Recommended clearance:

• Rear: 3 in. (76 mm)

• Front: 2 ft, 6 in. (762 mm)

• Right Side: 2 ft, 6 in. (762 mm)

• Left Side: 2 ft, 6 in. (762 mm)

• Local codes or jurisdiction may prevail.

4. Liquid piping not supplied by Carrier.

5. Duct flange is factory-supplied and field-installed.

6. 40RMQ028 and 40RMS may require alternate or additional field fabricated piping access holes.

Fig. 1C — Dimensions — Sizes 028,034

UNIT

40RM028 1020 (463) 40RM034 1030 (467) 40RMQ028 1050 (477) 40RMS028 1035 (469) 40RMS034 1042 (473)

UNIT WEIGHT

lb (kg)

40RM–016––B501GC

40RM – Commercial Packaged

Cooling Coil Q–Direct Expansion for Heat Pump Duty

S–Chilled Water

Nominal Capacity – Tons (kW) 007 – 6 (21) 016 – 15 (52) 008 – 7-1/2 (26) 024 – 20 (70) 010 – 8-1/2 (29) 028 – 25 (87) 012 – 10 (35) 034 – 30 (105) 014 – 12-1/2 (43)

Not Used

Expansion Device –– None (40RMS) B–Thermostatic Expansion Valves (40RM, 40RMQ) H–TXV with High Capacity, 4 Row Coil

Voltage Designation (V-Ph-Hz) 1– 575-3-60 8– 230-3-50 3–208/230-1-60 9– 400-3-50

5–208/230-3-60 6–208/230/460-3-60 (all sizes 007-014;

Air Handler

–– Direct Expansion

(007-010 sizes only)

size 016 except YC and WD options) 460-3-60 (sizes 016 with YC or WD options and all size 024-034 units)

Factory-Installed Options GC – Unpainted, Standard Motor,

and Standard Drive

HC – Unpainted, Standard Motor,

and Medium-Static Drive (Not available for 60 Hz 028 size or 50 Hz 016-028 sizes)

TC – Unpainted, Alternate Motor,

and Medium-Static Drive (60 Hz 028 size and 50 Hz 016-028 sizes)

YC – Unpainted, Alternate Motor, and

High-Static Drive*

ED – Painted, Standard Motor, and

Standard Drive

FD – Painted, Standard Motor, and

Medium-Static Drive (Not available for 60 Hz 028 size or 50 Hz 016-028 sizes)

RD – Painted, Alternate Motor, and

Medium-Static Drive (60 Hz 028 size and 50 Hz 016-028 sizes)

WD – Painted, Alternate Motor,

and High-Static Drive*

Packaging 1–Standard Domestic 3–Standard Export

Revision Number 0– Original

LEGEND TXV — Thermostat Expansion Valve *YC and WD option codes for all 034 size units and 008, 010 size units wi th 208/ 230-1-60

power designate standard motor and high-static drive.

NOTE: See the following table for the sizes available for each unit.

UNIT 007 008 010 012 014 016 024 028 034

40RM XX XXXXXX 40RMQ X X XXX 40RMS XXXXXXXX

Fig. 2 — Model Number Nomenclature

LEGEND

TXV — Thermostatic Expansion Valve

Fig. 3 — Foam Block Location

Unit Positioning — The unit can be mounted on the

floor for vertical application with return air entering the face of the unit and supply air discharging vertically through the top of the unit. The unit can also be applied in a horizontal arrangement with return air entering horizontally and the supply air discharging horizontally. When applying the unit in a horizontal arrangement, ensure the condensate drain pan is located at the bottom center of the unit for adequate condensate disposal. See Fig. 4 for condensate connections for each unit position.

Typical positioning and alternate return air locations are shown in Fig. 4. Alternate return air locations can be used by moving the unit panel from the alternate return air location to the standard return air location. Refer to overhead suspension accessory drawing (Fig. 5) for preferred suspension technique. The unit needs support underneath to prevent sagging.

IMPORTANT: Do NOT attempt to install unit with return air entering top panel of unit. Condensate will not drain from unit.

Unit Isolation — Where extremely quiet operation is

essential, install isolators between floor and base of unit, or between ceiling and top section of unit.

Be sure that unit is level and adequately supported. Use channels at front and sides of unit for reference points when leveling.

Refrigerant and Chilled Water Piping Access —

knockouts for refrigerant and chilled water piping. These knockouts are located on both sides of the unit for installation flexibility. The standard knockouts provide sufficient access to the unit’s coils for all 40RM and some 40RMQ units, however, for 40RMQ016,028 and 40RMS units, additional holes must be field-fabricated to accommodate the piping. See Fig. 6 for the positions and dimensions of the additional access holes required for these units, including hole diameters and drilling dimensions. Recommended access hole use is also listed for all units. Note that Fig. 6 shows the access holes on the controlbox side of the unit; this is the side of the unit with the coil headers, so it is used most often for piping access.

IMPORTANT: Do not bury refrigerant piping

underground.

The 40RM Series units come with standard

Refrigerant Piping — See Tables 1A, 1B, 1D, 1E for

refrigerant pipe connection sizes. For ease in brazing, it is recommended that all internal solder joints be made before unit is placed in final position.

The 40RM and 40RMQ direct-expansion units have internal factory-installed thermostatic expansion valves (TXVs), distributors, and nozzles for use with R-22. See Table 2 for part numbers. Knockouts are provided in the unit corner posts for 40RM and 40RMQ008 and 012 refrigerant piping. The 40RMQ016,024 and 028 units requires additional fieldfabricated piping access holes. See Fig. 6, which also lists recommended knockouts and access holes to use for each 40RM and 40RMQ unit size. Recommended fittings are listed in Table 3 .

The sensor bulb capillary tubes must be routed from the TXVs inside the unit through one of the piping access holes. Clamp the TXV sensor bulb on a vertical portion of the suction line, outside the unit. See Fig. 7.

NOTE: Be sure to remove the styrofoam shipping pad from the TXV. Verify that it has been removed. See Fig. 3.

IMPORTANT: Never attach the sensor to the suction manifold. Do NOT mount the sensor on a trapped portion of the suction line.

LEGEND

Accessory Line Alternate Air Intake and Discharge

Air Intake and Discharge

Fig. 4 — Typical Unit Positioning

The 40RM Series evaporator coils have a face-split design. Ensure that lower circuit of coil is first on/last off when connected to the condensing unit and/or system controls. See Fig. 8.

External TXV equalizer connections are provided and factory-brazed into the coil suction manifolds.

If suction line must be horizontal, clamp bulb to suction line at least 45 degrees above bottom, at approximately the 4 o’clock or 8 o’clock position. See Fig. 9.

NOTE: The 40RMQ units are supplied with factory-installed thermostatic expansion valves and check valve bypasses. No extra piping connections or kits are required to install the 40RMQ with a 38AQ, 38ARQ, or 38AQS condensing unit in a heat pump system, however, some field-supplied components may be required. See the following two sections.

HEAT PUMP SYSTEM PIPING — Addition of a liquid solenoid valve (LLSV) is recommended. The LLSV must be a bi-flow type suited for use in heat pump systems. Refer to the 38AQ, ARQ, AQS literature for recommended component part numbers. Wire the solenoid valve in parallel with the compressor contactor coil.

The LLSV must be installed at the outdoor unit with the flow arrow pointed toward the outdoor unit (in-flow direction for the heating mode.)

38ARQ DUPLEX/40RMQ024 HEAT PUMP SYSTEM PIPING — Two 38ARQ012 heat pump condensing units may be connected in a duplex arrangement with the 40RMQ024. See Fig. 10. Ensure that the lower circuit of the 40RMQ coil is the first on/last off by connecting to the “A” condensing unit and by configuring the controls so that the “A” condensing unit is the first on/last off.

38ARQ012/38AQS016 DUPLEX/40RMQ028 HEAT PUMP SYSTEM PIPING — One 38ARQ012 and one 38AQS016 heat pump condensing unit may be connected in a duplex arrangement with the 40RMQ028. See Fig. 10. The 40RMQ028 has a 60/40 face split coil. Ensure that the larger coil section (connection “B”, Fig. 8) is connected to the 38QAS016 and the smaller coil section is connected to the 38AQS012. In addition, ensure that the lower circuit of the 40RMQ coil is the first on/last off by connecting to the “A” condensing unit and by configuring (see 38ARQ,AQS installation instructions for more information) the controls so that the “A” condensing unit is the first on/last off.

FILTER DRIER REQUIREMENTS FOR HEAT PUMP SYSTEMS — The 38ARQ and 38AQS units do not include filter driers. Filter driers must be field-supplied and fieldinstalled. The filter driers used with these systems must be bi-flow types suited for use in heat pump applications. Refer to the 38AQ,ARQ,AQS literature for recommended component part numbers. See Fig. 11 for filter drier quantity and location information.

OVERHEAD SUSPENSION ACCESSORY

UNIT SIZES 007-012

UNIT SIZES 014-024

UNIT SIZES 028,034

Fig. 5 — Preferred Suspension Technique

NOTE: Dimensions in [ ] are millimeters.

UNIT

40RM007,008 40RMQ008

40RM012-034 40RMQ012

40RMS008-012 4, 5 1 40RMS014-024 4, 5, 6, 7 1 40RMQ016,024,028 3*, 5, 6, 7 1 40RMS028,034 5, 6, 7, 8 2

*Must be enlarged from 11/8 in. to 13/4 inches. NOTE: Access hole kn ockouts 1-4 are factory-supplied.

USE HOLE NUMBERS

1, 3 — — — — — — — —

1, 2, 3, 4 — — — — — — — —

FIELD-FABRICATED HOLE DIAMETERS,

No.5No.6No.7No.8ABCD

/4 (44.5) — — — 6.25 (158.8) — — —

/4 (44.5) 13/4 (44.5) 13/4 (44.5) — 3.0 (76.2) 6.0 (152.4) 10.5 (266.7) —

/8 (28.6) 11/8 (28.6) 13/4 (44.5) — 3.25 (82.6) 6.125 (155.6) 10.38 (263.7) —

/2 (63.5) 21/2 (63.5) 21/2 (63.5) 21/2 (63.5) 6.0 (152.4) 9.625 (244.5) 13.38 (339.9) 17.0 (431.8)

Fig. 6 — Refrigerant and Chilled Water Piping Access Holes

in. (mm)

FIELD-FABRICATED HOLE POSITION

DIMENSIONS, in. (mm)

TXV — Thermostatic Expansion Valve

NOTE: Component location arrangement shown for field installation of sight glasses, solenoid valves, filter driers, and TXV sensing bulbs. The TXVs and equalizer lines are factory installed.

LEGEND

Fig. 7 — Face-Split Coil Suction and

Liquid Line Piping (Typical)

FIRST ON/LAST OFF = B

VERTICAL INSTALLATION

FIRST ON/LAST OFF = A

HORIZONTAL INSTALLATION

Fig. 8 — Typical Evaporator Coil Connections

(40RM, 40RMQ)

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