Carrier 50RHC, RVS, RDS006-060, RVC, RHR User Manual

...

50RHC,RVC,RHR,RHS,

RVR,RVS,RDS006-060

Water Source Heat Pump Units

Installation, Start-Up, and

Service Instructions

AQUAZONE™

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Step 1 — Check Jobsite. . . . . . . . . . . . . . . . . . . . . . . . 2

Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

• STORAGE

•PROTECTION

•INSPECT UNIT

Step 3 — Unit Location. . . . . . . . . . . . . . . . . . . . . . . . . . 14

• FIELD CONVERSION OF DISCHARGE AIR

Step 4 — Mounting the Unit . . . . . . . . . . . . . . . . . . . . . 15

• HORIZONTAL UNITS

• VERTICAL UNITS

Step 5 — Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . 15

• SO U N D AT T E NUATIO N

• EXISTING DUCT SYSTEM

Step 6 — Condensate Drain . . . . . . . . . . . . . . . . . . . . . 16

• HORIZONTAL UNITS

• VERTICAL UNITS

• VENTING

Step 7 — Piping Connections . . . . . . . . . . . . . . . . . . . 16

• WATER LOOP APPLICATIONS

• GROUND-WATER APPLICATIONS

• GROUND-LOOP APPLICATIONS

Step 8 — Field Power Supply Wiring . . . . . . . . . . . . 18

• POWER CONNECTION

• SUPPLY VOLTAGE

• 208-VOLT OPERATION

Step 9 — Field Control Wiring. . . . . . . . . . . . . . . . . . . 18

• THERMOSTAT CONNECTIONS

• WATER FREEZE PROTECTION

• AIR COIL FREEZE PROTECTION

• ACCESSORY CONNECTIONS

• WATER SOLENOID VALVES

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-30

System Checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

PSC Blower Speed Selection . . . . . . . . . . . . . . . . . . 27

FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . 30-32

C Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 30

C Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 30

D Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 30

D Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 30

Units with Modulating Hot Water Reheat

(HWR) Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

D Control Accessory Relay Configurations . . . . . 32

Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 32

Outside Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 32

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-36

Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 33

Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 33

Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 34

Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Page

Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 36

Ground Coupled, Closed Loop and Plateframe

Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 36

OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36,37

Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Units with Aquazone Complete C Control . . . . . . . 36

Units with Aquazone Deluxe D Control. . . . . . . . . . 36

Units with HWR Option. . . . . . . . . . . . . . . . . . . . . . . . . . 37

SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37,38

Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Aquazone Deluxe D Control LED Indicators . . . . . 38

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-40

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 38

Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Fan Motors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . 39

Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Condenser Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . 39

Checking System Charge . . . . . . . . . . . . . . . . . . . . . 39

Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 40

Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 40

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 40-42

Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

50RHC,RVC,RHR,RHS,RVR,RVS,RDS

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

IMPORTANT: Read the entire instruction manual before starting installation.

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters. All other operations should be performed by trained service personnel. When working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precautions that may apply.

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.

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

Book 1 4 Ta b 5 a 5 a

Catalog No. 04-53500007-01 Printed in U.S.A. Form 50R-5SI Pg 1 6-07 Replaces: 50R-4SI

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and the National Electrical Code (NEC) for special installation requirements.

Understand the signal words — DANGER, WARNING, and CAUTION. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices, which would result in minor personal injury or product and property damage.

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.

adequate space around the unit for servicing. See Fig. 1-3 for overall unit dimensions. Refer to Fig. 4 for an illustration of a typical horizontal installation.

VERTICAL AND DOWNFLOW UNITS (50RVC,RVR, RVS,RDS) — Vertical units are designed for indoor installations. While vertical units are typically installed in a floor-level closet or a small mechanical room, the unit access guidelines for these units are very similar to those described for horizontal units. See Fig. 5-8 for overall dimensions. Refer to Fig. 9 for an example of a typical vertical installation. Refer to Fig. 10 for a sample downflow installation.

To avoid equipment damage, do not use these units as a source of heating or cooling during the construction process. The mechanical components and filters used in these units quickly become clogged with construction dirt and debris which may cause system damage.

Electrical shock can cause personal injury or death. Before installing or servicing system, always turn off main power to system. There may be more than one disconnect switch. Turn off accessory heater power if applicable.

GENERAL

This Installation and Start-Up Instructions literature is for Aquazone™ water source heat pump systems.

Water source heat pumps (WSHPs) are single-package horizontally and vertically mounted units with electronic controls designed for year-round cooling and heating. Aquazone WSHPs are available in the following unit configurations:

• RHC standard efficiency with horizontal airflow and

right, left or back discharge

• RHR high efficiency with horizontal airflow and right,

left or back discharge

• RHS premium efficiency with horizontal airflow and

right, left or back discharge

• RVC standard efficiency with vertical airflow and top

discharge

• RVR high efficiency with vertical airflow and top

discharge

• RVS premium efficiency with vertical airflow and top

discharge

• RDS premium efficiency with vertical airflow and bot-

tom discharge (downflow)

IMPORTANT: The installation of water source heat pump units and all associated components, parts, and accessories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes. It is the responsibility of the installing contractor to determine and comply with ALL applicable codes and regulations.

INSTALLATION

Step 1 — Check Jobsite —

maintenance instructions are provided with each unit. Before unit start-up, read all manuals and become familiar with the unit and its operation. Thoroughly check out the system before operation. Complete the inspections and instructions listed below to prepare a unit for installation. See Tables 1-3 for unit physical data.

HORIZONTAL UNITS (50RHC,RHR,RHS) — Horizontal units are designed for indoor installation only. Be sure to allow

Installation, operation and

Step 2 — Check Unit — Upon receipt of shipment at

the jobsite, carefully check the shipment against the bill of lading. Make sure all units have been received. Inspect the carton or crating of each unit, and inspect each unit for damage. Ensure the shipping company makes proper notation of any shortages or damage on all copies of the freight bill. Concealed damage not discovered during unloading must be reported to the shipping company within 15 days of receipt of shipment.

NOTE: It is the responsibility of the purchaser to file all necessary claims with the shipping company.

1. Verify unit is correct model for entering water temperature of job.

2. Be sure that the location chosen for unit installation provides ambient temperatures maintained above freezing. Well water applications are especially susceptible to freezing.

3. Be sure the installation location is isolated from sleeping areas, private offices and other acoustically sensitive spaces.

NOTE: A sound control accessory package may be used to help eliminate sound in sensitive spaces.

4. Check local codes to be sure a secondary drain pan is not required under the unit.

5. Be sure unit is mounted at a height sufficient to provide an adequate slope of the condensate lines. If an appropriate slope cannot be achieved, a field-supplied condensate pump may be required.

6. Provide sufficient space for duct connection.

7. Provide adequate clearance for filter replacement and drain pan cleaning. Do not allow piping, conduit, etc. to block filter access.

8. Provide sufficient access to allow maintenance and servicing of the fan and fan motor, compressor and coils. Removal of the entire unit from the closet should not be necessary.

9. Provide an unobstructed path to the unit within the closet or mechanical room. Space should be sufficient to allow removal of unit if necessary.

10. Provide ready access to water valves and fittings, and screwdriver access to unit side panels, discharge collar, and all electrical connections.

11. Where access to side panels is limited, pre-removal of the control box side mounting screws may be necessary for future servicing.

STORAGE — If the equipment is not needed immediately at the jobsite, it should be left in its shipping carton and stored in a clean, dry area of the building or in a warehouse. Units must be stored in an upright position at all times. If carton stacking is necessary, stack units a maximum of 3 high. Do not remove any equipment from its shipping package until it is needed for installation.

PROTECTION — Once the units are properly positioned on the jobsite, cover them with either a shipping carton, vinyl film, or an equivalent protective covering. Cap open ends of pipes stored on the jobsite. This precaution is especially important in areas where painting, plastering, or spraying of fireproof material, etc. is not yet complete. Foreign material that accumulates within the units can prevent proper start-up and necessitate costly clean-up operations.

Before installing any of the system components, be sure to examine each pipe, fitting, and valve, and remove any dirt or foreign material found in or on these components.

DO NOT store or install units in corrosive environments or in locations subject to temperature or humidity extremes (e.g., attics, garages, rooftops, etc.). Corrosive conditions and high temperature or humidity can significantly reduce performance, reliability, and service life. Always move units in an upright position. Tilting units on their sides may cause equipment damage.

INSPECT UNIT — To prepare the unit for installation, complete the procedures listed below:

1. Compare the electrical data on the unit nameplate with ordering and shipping information to verify that the correct unit has been shipped.

2. Verify that the unit is the correct model for the entering water temperature of the job.

3. Do not remove the packaging until the unit is ready for installation.

4. Verify that the refrigerant tubing is free of kinks or dents, and that it does not touch other unit components.

5. Inspect all electrical connections. Be sure connections are clean and tight at the terminals.

6. Loosen compressor bolts until the compressor rides freely on springs. Remove shipping restraints.

7. Remove the four

/4 in. shipping bolts from compressor support plate (two bolts on each side) to maximize vibration and sound alternation.

Failure to remove shipping brackets from spring-mounted compressors will cause excessive noise and could cause component failure due to added vibration.

8. Remove any blower support cardboard from inlet of the blower.

9. Locate and verify any accessory kit located in compressor section.

10. Remove any access panel screws that may be difficult to remove once unit is installed.

Table 1 — Physical Data — Aquazone™ 50RHC,RVC006-060 Units

UNIT 50RHC,RVC 006* 009 012 018 024 030 COMPRESSOR (1 each) Rotary FACTORY REFRIGERANT CHARGE R-22

VERTICAL (oz) FACTORY REFRIGERANT CHARGE R-22

HORIZONTAL (oz) PSC FAN MOTOR AND BLOWER

Fan Motor Type/Speeds PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 Fan Motor Std/High Static (Hp) Blower Wheel Size (D x W) (in.) Std/High Static 5 x 5/— 5 x 5/— 6 x 5/— 8 x 7/8 x 7 9 x 7/9 x 7 9 x 7/10 x 8

WATER CONNECTION SIZE (FPT) VERTICAL

Air Coil

Dimensions (H x W) (in.) — 10 x 15 10 x 15 20 x 17.25 20 x 17.25 20 x 17.25 Total Face Area (ft2) — 1.04 1.04 2.4 2.4 2.4

Tube Size (in.) — Fin Spacing (FPI) —1212121212 Number of Rows —23233 Filter Standard — 1-in. Throwaway — 10 x 18 10 x 18 1 — 20 x 20 1 — 20 x 20 1 — 20 x 20 Weight (lb)

Operating — 105 114 181 189 197 Packaged — 115 124 186 194 202

HORIZONTAL

Air Coil

Dimensions (H x W) (in.) 10 x 15 10 x 15 10 x 15 16 x 22 16 x 22 16 x 22 Total Face Area (ft2) 1.04 1.04 1.04 2.44 2.44 2.44

Tube Size (in.) Fin Spacing (FPI) 12 12 12 12 12 12 Number of Rows 223233 Filter Standard — 1-in. Throwaway 10 x 18 10 x 18 10 x 18 1 — 16 x 25 1 — 16 x 25 1 — 16 x 25 Weight (lb)

Operating 103 105 114 181 189 197 Packaged 113 115 124 186 194 202

—1414263837

14 14 14 25 38 37

/25/—

/10/—

/8/1/

Reciprocating

/4/3/

UNIT 50RHC,RVC 036 041† 042 048 060 COMPRESSOR (1 each) Reciprocating Scroll FACTORY REFRIGERANT CHARGE R-22

VERTICAL (oz) FACTORY REFRIGERANT CHARGE R-22

HORIZONTAL (oz) PSC FAN MOTOR AND BLOWER

Fan Motor Type/Speeds PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 Fan Motor Std/High Static (Hp)

Blower Wheel Size (D x W) (in.) Std/High Static 9 x 8/10 x 8 9 x 8/— 9 x 8/10 x 8 10 x 10/12 x 10 11 x 10/11 x 10 WATER CONNECTION SIZE (FPT) VERTICAL

Air Coil

Dimensions (H x W) (in.) 24 x 21.25 1 — 20 x 17.25 24 x 21.25 24 x 28.25 20 x 28.25 Total Face Area (ft2) 3.62 2.4 3.62 4.71 4.71

Tube Size (in.) Fin Spacing (FPI) 14 11 12 12 12 Number of Rows 2433 3

Filter Standard — 1-in. Throwaway 1 — 24 x 24 1 — 20 x 20 1 — 24 x 24 Weight (lb)

Operating 203 207 218 263 278 Packaged 209 212 224 270 285

HORIZONTAL

Air Coil

Dimensions (H x W) (in.) 20 x 25 — 20 x 25 20 x 35 20 x 35 Total Face Area (ft

Tube Size (in.) Fin Spacing (FPI) 14 — 12 12 12 Number of Rows 2—3 3 3

) 3.47 — 3.47 4.86 4.86

Filter Standard — 1-in. Throwaway Weight (lb)

Operating 203 — 218 263 278 Packaged 209 — 224 270 285

LEGEND

FPI — Fins per Inch PSC — Permanent Split Capacitor

*Size 006 available in 50RHC unit only.

†Size 041 available in 50RVC unit only.

42 50 51 66 74

41 50 51 66 74

/2/3/

1 — 20 x 28 2 — 20 x 14

/4/—

—

NOTES:

1. All units have grommet compressor mountings, and electrical knockouts.

2. All sizes available as high-static units.

/4/3/

1 — 20 x 28 2 — 20 x 14

/4/1 1/1

1 — 14 x 24 1 — 18 x 24

1 — 20 x 24 1 — 20 x 14

1 — 14 x 24 1 — 18 x 24

1 — 20 x 24 1 — 20 x 14

/2 and 3/4-in.

Table 2 — Physical Data — Aquazone™ 50RHR,RVR006-060 Units

UNIT 50RHR,RVR 006* 009 012 015 019 024 030 036 042 048 060 COMPRESSOR (1 each) Rotary Reciprocating Scroll FACTORY CHARGE R-22 (oz) 12 15 15 30 30 30 41 44 46 54 80 PSC FAN MOTOR AND BLOWER

Fan Motor Type/Speeds PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 Fan Motor (Hp) Blower Wheel Size (D x W) (in.) 5 x 5 5 x 5 6 x 5 9 x 7 9 x 7 9 x 7 9 x 7 10 x 10 10 x 10 10 x 10 11 x 10

WATER CONNECTION SIZE (FPT) VERTICAL

Air Coil

Dimensions (H x W) (in.) — 10 x 16 16 x 16 20 x 20 28 x 20 28 x 25 Total Face Area (ft2) — 1.1 1.8 2.8 3.9 4.9 Tube Size (in.) Fin Spacing (FPI) —1212121210 Number of Rows —33334 Filter Standard — 1-in. Throwaway — 10 x 20 16 x 20 20 x 24 28 x 24 28 x 30 Weight (lb)

Operating — 112 121 147 169 193 219 229 257 267 323 Packaged — 122 131 157 179 203 231 241 269 279 338

HORIZONTAL

Air Coil

Dimensions (H x W) (in.) 10 x 16 16 x 16 18 x 22 18 x 31 20 x 35 Total Face Area (ft2) 1.1 1.8 2.8 3.9 4.9 Tube Size (in.) Fin Spacing (FPI) 12 12 12 12 10 Number of Rows 223 3 3 3 4

Filter Standard — 1-in. Throwaway 1 — 10 x 20 1 — 16 x 20 1 — 18 x 24 2 — 18 x 18 Weight (lb)

Operating 110 112 121 147 169 193 219 229 257 267 323 Packaged 120 122 131 157 179 203 231 241 269 279 338

LEGEND

FPI — Fins per Inch PSC — Permanent Split Capacitor

*Size 006 available in 50RHR unit only.

—

NOTES:

1. All units have spring compressor mountings, TXV (thermostatic expansion valve) expansion devices, and 1/2 and 3/4-in. electrical knockouts.

2. Size 048 available as high-static unit.

11 1

1 — 12 x 20 1 — 25 x 20

Table 3 — Physical Data — Aquazone 50RHS,RVS,RDS015-070 Units

UNIT 50RHS,RVS,RDS 015 018 024 030 036 042 048 060 070 COMPRESSOR (1 each) Rotary Scroll FACTORY CHARGE R-22 (oz) 44 44 48 48 60 74 74 102 104 PSC FAN MOTOR AND BLOWER

Fan Motor Type/Speeds PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 PSC/3 Fan Motor (Hp) Blower Wheel Size (D x W) (in.) 9 x 7 9 x 7 9 x 7 9 x 7 9 x 7 10 x 10 10 x 10 11 x 10 11 x 10

WATER CONNECTION SIZE (FPT) (in.) HWG CONNECTION SIZE (FPT) (in.) VERTICAL/DOWNFLOW

Air Coil

Dimensions (H x W) (in.) 20 x 20 24 x 20 28 x 20 28 x 25 32 x 25 36 x 25 Total Face Area (ft

Tube Size (in.) Fin Spacing (FPI) 12 12 12 10 10 10 Number of Rows 3 33444

) 2.8 3.3 3.9 4.9 5.6 6.3

Filter Standard — 1-in. Throwaway 1 — 20 x 24 1 — 24 x 24

Weight (lb)

Operating 174 184 250 252 266 323 327 416 443 Packaged 184 194 260 262 276 333 337 426 453

HORIZONTAL

Air Coil

Dimensions (H x W) (in.) 18 x 22 18 x 27 18 x 31 20 x 35 20 x 40 20 x 45 Total Face Area (ft

Tube Size (in.) Fin Spacing (FPI) 12 12 12 10 10 10 Number of Rows 3 33444

) 2.8 3.4 3.9 4.9 5.6 6.3

Filter Standard — 1-in. Throwaway 1 — 18 x 24 2 — 18 x 18

Weight (lb)

Operating 179 189 250 252 266 323 327 416 443 Packaged 189 199 260 262 276 333 337 426 453

LEGEND NOTES:

FPI — Fins per Inch HWG — Hot Water Generator PSC — Permanent Split Capacitor

1. All units have spring compressor mountings, TXV (thermostatic

2. Size 030 and 036 available as high-static units.

2 — 14 x

2 — 18 x 182 — 12 x 201 — 20 x

expansion valve) expansion devices, and 1/2 and 3/4-in. electrical knockouts.

1111

2 — 14 x 30

2 — 10 x

1 — 12 x

1 — 18 x

1 — 24 x

3 — 12 x

2 — 24 x

50RHC

UNITS

006-012

018-030

036-042

048

060

NOTES:

1. Condensate is 3/4-in. FPT copper.

2. Horizontal unit shipped with filter bracket only. This bracket should be removed for return duct connection.

3. Hanger kit is factory installed.

OVERALL CABINET

WidthBDepthCHeight

in. 19.1 34.1 11.0 9.6 0.8 1.8 0.8 8.1 5.1 2.1 0.8 8.9 6.7 5.2 1.3 16.1 9.8 1.1 0.6 cm 48.5 86.6 27.9 24.4 2.0 4.4 2.0 20.6 13.0 5.4 1.9 22.7 17.0 13.3 3.3 41.0 25.0 2.7 1.5

in. 20.1 43.1 17.1 15.3 2.4 1.9 2.1 12.1 9.1 6.1 2.6 13.3 9.9 4.1 1.3 23.0 15.0 1.1 1.0 cm 51.1 109.5 43.4 38.9 6.1 4.9 5.3 30.8 23.2 15.6 6.6 33.8 25.1 10.5 3.3 58.4 38.1 2.8 2.5

in. 20.1 47.1 21.1 18.8 2.2 4.7 1.2 16.1 13.1 10.1 2.5 16.1 11.0 3.0 2.5 25.9 19.0 1.1 1.0 cm 51.1 119.6 53.6 47.6 5.5 11.9 3.0 41.0 33.3 25.7 6.3 40.9 27.9 7.7 6.4 65.8 48.3 2.8 2.5

in. 24.1 54.1 21.1 19.4 5.9 4.3 2.3 16.1 13.1 10.1 3.7 16.1 13.7 4.1 1.3 35.9 19.0 1.1 1.0 cm 61.2 137.4 53.6 49.2 14.9 11.0 5.8 41.0 33.3 25.7 9.5 41.0 34.8 10.3 3.2 91.2 48.3 2.8 2.5

in. 24.1 54.1 21.1 19.4 5.9 4.3 2.3 16.1 13.1 10.1 1.7 18.1 13.7 4.1 1.3 35.9 19.0 1.1 1.0 cm 61.2 137.4 53.6 49.2 14.9 11.0 5.8 41.0 33.3 25.7 4.4 46.0 34.8 10.3 3.2 91.2 48.3 2.8 2.5

WATER CONNECTIONS ELECTRICAL KNOCKOUTS (in.)

1 — In 2 — Out

D E F G Therm Ext Pump

/2 conduit

ASP — Alternate Service Panel BSP — Blower Service Panel CAP — Control Access Panel CSP — Compressor Service Panel

/2 conduit

LEGEND

/4 conduit

Power

Supply

DISCHARGE CONNECTION

Duct Flange Installed (±0.10 in.)

LMSupply

Height

Supply

Depth

OPQReturn

RETURN CONNECTION Using Air Coil Opening

Return

Depth

Height

AIRFLOW CONFIGURATION

Code Return Discharge

S Left Right E Left Back Z Right Left

B Right Back

Fig. 1 — 50RHC Dimensional Data

a50-8155

WATER

OVER ALL

50RHR

UNITS

in. 22.4 43.1 11.3 2.4 5.4 0.6

006-012

cm 56.8 109.5 28.7 6.1 13.7 1.5 8.9 14.0 20.8 14.7 10.2 14.7 20.3 14.7 3.8 43.4 23.6 5.6 2.5

in. 22.4 43.1 17.3 2.4 4.9 0.6

015-024

cm 56.8 109.5 43.9 6.1 12.4 1.5 8.9 19.1 25.9 12.7 14.2 26.4 23.6 12.7 3.8 43.4 38.9 5.6 2.5

in. 22.4 53.2 19.3 2.4 5.4 0.6

030

cm 56.8 135.1 49.0 6.1 13.7 1.5 14.5 24.6 31.0 12.7 17.3 26.4 23.6 12.7 5.3 58.7 43.9 5.6 2.5

in. 22.4 53.2 19.3 2.4 5.4 0.6

036

cm 56.8 135.1 49.0 6.1 13.7 1.5 14.5 24.6 31.0 7.4 9.7 34.3 33.3 7.4 4.8 58.7 43.9 5.6 2.5

in. 22.4 62.2 19.3 2.4 5.4 0.6

042-048

cm 56.8 158.0 49.0 6.1 13.7 1.5 14.5 24.6 31.0 7.4 9.7 34.3 33.3 7.4 4.8 81.5 43.9 5.6 2.5

in. 25.4 71.2 21.3 2.4 5.4 0.6

060

cm 64.5 180.8 54.1 6.1 13.7 1.5 20.6 29.7 36.1 14.7 12.7 34.5 33.8 14.7 7.4 91.7 49.0 5.6 2.5

NOTES:

1. Condensate is 3/4-in. FPT copper.

2. Horizontal unit shipped with filter bracket only. This bracket should be removed for return duct connection.

3. Hanger kit is factory installed. Isolation grommets are provided.

4. Right and left orientation is determined by looking at water connection side.

CABINET

WidthBDepthCHeightDInEOut

3op?œŸ•‘ “ ’

CONNECTIONS

12 3

²±¢p³µ¶·¸¹º»¼½¾¿ÀÁÂ?‘’“”•…†‡denµ´ÇÆÅÄ´

Cond-

ensate

Loop

Wate r

ELECTRICAL KNOCKOUTS (in.)

/2 conduit

FPT

Therm

(in.)

3.5 5.5 8.2 5.8 4.0 5.8 8.0 5.8 1.5 17.1 9.3 2.2 1.0

3.5 7.5 10.2 5.0 5.6 10.4 9.3 5.0 1.5 17.1 15.3 2.2 1.0

5.7 9.7 12.2 5.0 6.8 10.4 9.3 5.0 2.1 23.1 17.3 2.2 1.0

5.7 9.7 12.2 2.9 3.8 13.5 13.1 2.9 1.9 23.1 17.3 2.2 1.0

5.7 9.7 12.2 2.9 3.8 13.5 13.1 2.9 1.9 32.1 17.3 2.2 1.0

8.1 11.7 14.2 5.8 5.0 13.6 13.3 5.8 2.9 36.1 19.3 2.2 1.0

/2 conduit

Ext

Pump

LEGEND

Water Connection

3‘ Service

Access

ASP

BSP

E Configuration - Left Return Back Discharge

Right View

Fron t

LEFT RETURN RIGHT RETURN

Fron t

Right

Discharge

CSP

Blower

Outlet

ASP

S Configuration - Left Return Right Discharge -

Air Coil Opening

Left Return

Back

Discharge

Air Coil Side

ASP — Alternate Service Panel BSP — Blower Service Panel CAP — Control Access Panel CSP — Compressor Service Panel

Power Supply

“ Knockout

3/4

1/2“

Knockout

3.25

Low Voltage

1/2

“ Knockout

Condensate

3/4

“

FPT

Unit Hanger Detail

Model X Y Z

Blower

Outlet

006-024 43.1 24.375 20.375

Front

030-036 53.1 24.375 20.375 042-048 62.1 24.375 20.375 060 71.1 27.375 23.375

BSP

1.6 [40.6mm]

CAP

Front-View

SERVICE

ACCESS

/4 conduit

Powe r

Supply

2 1

BSP

3‘

DISCHARGE CONNECTION

Duct Flange Installed (±0.10 in.)

JKLSupply

Height

Supply

Depth

Right Return

3.25

Condensate

3/4

“

FTP

Back

Discharge

Air Coil Side

B Configuration - Right Return Back Discharge

Air Coil Opening

Blower

Outlet

Z Configuration - Right Return Left Discharge -

RETURN CONNECTION

Using Return Air Opening

NOPReturn

ASP

Blower

Outlet

CSP

Depth

Water Connection

Discharge

Fron t

Left

CSP

BSP

Q Return Height

Left

View

Fron t

Service

‘

Access

Left

View

S Configuration - Left Return Right Discharge -

Air Coil Opening

AIRFLOW CONFIGURATION

Code Return Discharge

S Left Right E Left Back Z Right Left B Right Back

Fig. 2 — 50RHR Dimensional Data

Air Coil

CSP

1.1

Fron t

Air Coil

ASP

Z Configuration - Right Return Left Discharge -

Air Coil Opening

Right View

a50-8156

50RHS

UNITS

015-018

024-030

036

042-048

060

070

NOTES:

1. Condensate is 3/4-in. FPT copper.

2. Horizontal unit shipped with filter bracket only. This bracket should be removed for return duct connection.

3. Hanger kit is factory installed. Isolation grommets are provided.

4. Right and left orientation is determined by looking at water connection side.

OVERALL CABINET

WidthBDepthCHeightDInEOut

in. 22.4 53.2 19.3 2.4 5.4 0.6 cm 56.8 135.1 49.0 6.1 13.7 1.5 14.5 24.6 31.0 12.7 17.3 26.4 23.6 12.7 5.3 58.7 43.9 5.6 2.5

in. 22.4 62.2 19.3 2.4 5.4 0.6 cm 56.8 158.0 49.0 6.1 13.7 1.5 14.5 24.6 31.0 12.7 17.3 26.4 23.6 12.7 5.3 71.4 43.9 5.6 2.5

in. 22.4 62.2 19.3 2.4 5.4 0.6 cm 56.8 158.0 49.0 6.1 13.7 1.5 14.5 24.6 31.0 12.7 17.3 26.4 23.6 12.7 5.3 81.5 43.9 5.6 2.5

in. 25.4 71.2 21.3 2.4 5.4 0.6 cm 64.5 180.8 54.1 6.1 13.7 1.5 20.6 29.7 36.1 14.7 12.7 34.5 33.8 14.7 7.4 91.7 49.0 5.6 2.5

in. 25.4 76.2 21.3 2.4 5.4 0.6 cm 64.5 193.5 54.1 6.1 13.7 1.5 20.6 29.7 36.1 14.7 12.7 34.5 33.8 14.7 7.4 104.4 49.0 5.6 2.5

in. 25.4 81.2 21.3 2.4 5.4 0.6 cm 64.5 206.2 54.1 6.1 13.7 1.5 20.6 29.7 36.1 14.7 12.7 34.5 33.8 14.7 7.4 117.1 49.0 5.6 2.5

WATER CONNECTIONS ELECTRICAL KNOCKOUTS (in.)

12 3

Cond-

ensate

Loop

Water

FPT (in.)

11/

/2 conduit

HWG

FPT (in.)

Therm Ext Pump

5.7 9.7 12.2 5.0 6.8 10.4 9.3 5.0 2.1 23.1 17.3 2.2 1.0

5.7 9.7 12.2 5.0 6.8 10.4 9.3 5.0 2.1 28.1 17.3 2.2 1.0

5.7 9.7 12.2 5.0 6.8 10.4 9.3 5.0 2.1 32.1 17.3 2.2 1.0

8.1 11.7 14.2 5.8 5.0 13.6 13.3 5.8 2.9 36.1 19.3 2.2 1.0

8.1 11.7 14.2 5.8 5.0 13.6 13.3 5.8 2.9 41.1 19.3 2.2 1.0

8.1 11.7 14.2 5.8 5.0 13.6 13.3 5.8 2.9 46.1 19.3 2.2 1.0

/2 conduit

LEGEND

ASP — Alternate Service Panel BSP — Blower Service Panel CAP — Control Access Panel CSP — Compressor Service Panel

/4 conduit

Power

Supply

DISCHARGE CONNECTION

Duct Flange Installed (±0.10 in.)

JKLSupply

Height

Supply

Depth

RETURN CONNECTION Using Air Coil Opening

NOPReturn

Depth

Q Return Height

AIRFLOW CONFIGURATION

Code Return Discharge

S Left Right E Left Back Z Right Left B Right Back

Fig. 3 — 50RHS Dimensional Data

a50-8157

UNIT HANGER ISOLATION DETAIL

Fig. 4 — Typical Installation — 50RHC,RHR,RHS Units

50RVC UNITS

009-012

018-030

036 & 042

041

048-060

NOTES:

1. Condensate is 3/4-in. (19.1 mm) FPT.

2. Filter bracket extending from unit 2.5-in. (6.4 cm). This bracket should be removed when connecting return duct.

3. Discharge flange field installed.

OVERALL CABINET

WidthBDepthCHeight

in. 19.1 19.1 22.0 1.4 2.8 9.4 2.8 6.1 2.3 1/2 2.9 5.9 8.9 8.9 5.1 9.0 9.0 5.5 2.1 16.2 9.9 0.7 cm 48.5 48.5 55.9 3.6 7.1 24.0 7.1 15.6 5.9 1.3 7.3 14.9 22.5 22.7 12.9 22.9 22.9 14.0 5.3 41.1 25.1 1.9

in. 21.5 21.5 39.0 1.8 3.8 15.2 3.6 8.1 2.33/ cm 54.6 54.6 99.1 4.5 9.7 38.6 9.1 20.6 5.8 1.9 10.5 18.1 25.7 16.1 9.5 35.6 35.6 13.6 5.8 46.5 51.3 1.9

in. 21.5 26.0 44.0 2.0 3.7 16.2 2.6 10.4 2.33/ cm 54.6 66.0 111.8 5.1 9.4 41.1 6.6 28.4 5.8 1.9 10.5 18.1 25.7 16.1 9.5 35.6 35.6 13.1 5.8 57.9 61.4 1.9

in. 21.5 21.5 39.0 1.7 3.6 16.4 2.6 8.1 2.33/ cm 54.6 54.6 99.1 4.4 9.1 41.7 6.6 20.6 5.8 1.9 10.5 18.1 25.7 16.1 9.5 35.6 35.6 13.6 5.8 46.5 51.3 1.9

in. 24.0 32.5 46.0 1.8 5.9 16.7 2.3 10.1 2.3 1 4.1 7.1 10.1 6.9 7.3 16.0 18.0 5.1 2.3 29.3 24.2 0.7 cm 6.10 82.6 116.8 4.5 14.9 42.4 5.8 25.7 5.8 2.5 10.5 18.1 25.7 17.4 18.4 40.6 45.7 13.1 5.8 74.4 61.4 1.9

WATER CONNECTIONS ELECTRICAL KNOCKOUTS (in.)

12 3

DE FG H I

In Out Condensate

Water

FPT

Size

ASP — Alternate Service Panel BSP — Blower Service Panel CAP — Control Access Panel CSP — Compressor Service Panel

LEGEND

/2 conduit

Therm

4.1 7.1 10.1 6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.2 0.7

4.1 7.1 10.1 6.4 3.8 14.0 14.0 5.1 2.3 22.8 24.2 0.7

4.1 7.1 10.1 6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.2 0.7

Pump

Ext.

/4 conduit

Power

Supply

DISCHARGE CONNECTION

Duct Flange Installed (±0.10 in.)

MNOSupply

Width

Supply

Depth

RETURN CONNECTION Using Air Coil Opening

QRSReturn

Depth

T Return Height

AIRFLOW CONFIGURATION

Code Return Discharge

L Left Top R Right Top

a50-8158

Fig. 5 — 50RVC Dimensional Data

50RVR UNITS

009-012

015-024

030

036

042-048

060

NOTES:

1. Condensate is 3/4-in. FPT and is switchable from side to front.

2. Vertical unit shipped with filter bracket only extending from unit 2.5 inches. This bracket should be removed when connecting return duct.

3. Discharge flange field installed.

4. Right and left orientation is determined by looking at water connection side.

OVERALL CABINET

WidthBDepthCHeightDInEOut

in. 22.4 21.6 22.6 2.6 5.4 7.8 cm 56.8 54.9 57.4 6.6 13.7 19.8 8.9 14.0 20.8 26.9 17.3 14.7 20.3 15.2 5.6 43.4 23.6 2.5

in. 22.4 21.6 34.6 2.4 4.8 8.5 cm 56.8 54.9 87.9 6.1 12.2 21.6 8.9 19.1 25.9 18.3 9.7 35.6 35.6 10.9 5.6 43.4 38.9 2.5

in. 22.4 25.6 40.6 2.4 5.4 9.7 cm 56.8 65.1 103.1 6.1 13.7 24.6 14.5 24.6 31.0 18.3 14.7 35.6 35.6 10.9 5.6 53.6 48.8 2.5

in. 22.4 25.6 48.6 2.4 5.4 9.7 cm 56.8 65.1 123.4 6.1 13.7 24.6 14.5 24.6 31.0 18.3 14.7 35.6 35.6 10.9 5.6 53.6 69.1 2.5

in. 25.4 30.6 50.6 2.4 5.4 10.7 cm 64.5 77.8 128.5 6.1 13.7 27.2 20.6 29.7 36.1 15.7 16.0 45.7 45.7 13.0 5.6 66.3 69.1 2.5

WATER CONNECTIONS ELECTRICAL KNOCKOUTS (in.)

12 3

Loop

Wate r

FPT

Cond-

(in.)

ensate

ASP — Alternate Service Panel BSP — Blower Service Panel CAP — Control Access Panel CSP — Compressor Service Panel

/2 conduit

Therm Ext Pump

3.5 5.5 8.2 10.6 6.8 5.8 8.0 6.0 2.2 17.1 9.3 1.0

3.5 7.5 10.2 7.2 3.8 14.0 14.0 4.3 2.2 17.1 15.3 1.0

5.7 9.7 12.2 7.2 5.8 14.0 14.0 4.3 2.2 21.1 19.2 1.0

5.7 9.7 12.2 7.2 5.8 14.0 14.0 4.3 2.2 21.1 27.2 1.0

8.1 11.7 14.2 6.2 6.3 18.0 18.0 5.1 2.2 26.1 27.2 1.0

LEGEND

/2 conduit

/4 conduit

Power

Supply

DISCHARGE CONNECTION

Duct Flange Installed (±0.10 in.)

JKLSupply

Standard Filter Bracket

Height

Field Installed Discharge Flange (Shipped loose in blower section)

Supply

Depth

RETURN CONNECTION Using Air Coil Opening

NOPReturn

Depth

Water Connection

Access Panels

Q Return Height

RIGHT RETURN

Fron t

Air Coil Side

R Configuration - Top View-Right Return

ASP

Front

R Configuration - Right Return Right View

- Air Coil Opening

Back

LEFT RETURN

L Configuration - Top View-Left Return

Air Coil Side

Air Coil

Back

L Configuration - Left Return Left View

- Air Coil Opening

CSP

Air Coil

BSP

Front

CSP

CAP

ASP

3’ Service

Access

Left Return

(right

Opposite)

Fron t

Water Connections

1.000

Condensate 3/4

“

FPT

Air Coil

Fron t

Power Supply

3/4“ HV Knockout

Power for

Condensate Pump

1/2“ Knockout

Low Voltage

1/2“ LV Knockout

3’ Service

Access

CSP

CAP

Front View

Isometric

View

2 1

AIRFLOW CONFIGURATION

Code Return Discharge

L Left Top R Right Top

a50-8159

Fig. 6 — 50RVR Dimensional Data

50RVS UNITS

015-018

024-030

036

042-048

060

070

NOTES:

1. Condensate is 3/4-in. FPT and is switchable from side to front.

2. Vertical unit shipped with filter bracket only extending from unit 2.5 inches. This bracket should be removed when connecting return duct.

3. Discharge flange field installed.

4. Right and left orientation is determined by looking at water connection side.

OVERALL CABINET

WidthBDepthCHeightDInEOut

in. 22.4 25.6 40.6 2.4 5.4 9.7 cm 56.8 65.1 103.1 6.1 13.7 24.6 14.5 24.6 31.0 18.3 14.7 35.6 35.6 10.9 5.6 53.6 48.8 2.5

in. 22.4 25.6 44.6 2.4 5.4 9.7 cm 56.8 65.1 113.3 6.1 13.7 24.6 14.5 24.6 31.0 18.3 14.7 35.6 35.6 10.9 5.6 53.6 58.9 2.5

in. 22.4 25.6 48.6 2.4 5.4 9.7 cm 56.8 65.1 123.4 6.1 13.7 24.6 14.5 24.6 31.0 18.3 14.7 35.6 35.6 10.9 5.6 53.6 69.1 2.5

in. 25.4 30.6 50.6 2.4 5.4 10.7 cm 64.5 77.8 128.5 6.1 13.7 27.2 20.6 29.7 36.1 15.7 16.0 45.7 45.7 13.0 5.6 66.3 69.1 2.5

in. 25.4 30.6 54.6 2.4 5.4 10.7 cm 64.5 77.8 138.7 6.1 13.7 27.2 20.6 29.7 36.1 15.7 16.0 45.7 45.7 13.0 5.6 66.3 79.2 2.5

in. 25.4 30.6 58.6 2.4 5.4 10.7 cm 64.5 77.8 148.8 6.1 13.7 27.2 20.6 29.7 36.1 15.7 16.0 45.7 45.7 13.0 5.6 66.3 89.4 2.5

WATER CONNECTIONS ELECTRICAL KNOCKOUTS (in.)

12 3

Cond-

ensate

Loop Water

FPT (in.)

11/

HWG

FPT (in.)

/2 conduit

Therm Ext Pump

5.7 9.7 12.2 7.2 5.8 14.0 14.0 4.3 2.2 21.1 19.2 1.0

5.7 9.7 12.2 7.2 5.8 14.0 14.0 4.3 2.2 21.1 23.2 1.0

5.7 9.7 12.2 7.2 5.8 14.0 14.0 4.3 2.2 21.1 27.2 1.0

8.1 11.7 14.2 6.2 6.3 18.0 18.0 5.1 2.2 26.1 27.2 1.0

8.1 11.7 14.2 6.2 6.3 18.0 18.0 5.1 2.2 26.1 31.2 1.0

8.1 11.7 14.2 6.2 6.3 18.0 18.0 5.1 2.2 26.1 35.2 1.0

/2 conduit

/4 conduit

Power

Supply

DISCHARGE CONNECTION

Duct Flange Installed (±0.10 in.)

JKLSupply

Height

Supply

Depth

RETURN CONNECTION

Using Air Coil Opening

NOPReturn

Depth

Q Return Height

RIGHT RETURN

Fron t

Air Coil Side

R Configuration - Top View-Right Return

Air Coil

LEGEND

ASP — Alternate Service Panel BSP — Blower Service Panel CAP — Control Access Panel CSP — Compressor Service Panel

LEFT RETURN

L Configuration - Top View-Left Return

Air Coil Side

Front

Air Coil

Standard Filter Bracket

Air Coil

CSP

Fron t

3’ Service

Access

Field Installed Discharge Flange (Shipped loose in blower section)

BSP

CAP

Isometric

Water Connection

Access Panels

ASP

View

Water Connections

1.000

3’ Service

Access

Left Return

(right

Opposite)

ASP

Front

R Configuration - Right Return Right View

- Air Coil Opening

AIRFLOW CONFIGURATION

Code Return Discharge

L Left Top R Right Top

Back

CSP

Back

L Configuration - Left Return Left View

- Air Coil Opening

Fron t

Fig. 7 — 50RVS Dimensional Data

Power Supply

3/4“ HV Knockout

Power for

Condensate Pump

1/2“ Knockout

Low Voltage

1/2“ LV Knockout

a50-8169

CSP

Front View

CAP

Condensate 3/4

“

FPT

2 1

50RDS

UNITS

015-018

024-030

036

042-048

060

070

HWG — Hot Water Generator

NOTES:

1. Condensate is

2. Vertical unit shipped with filter bracket only extending from unit 2.5 inch. This bracket should be removed when connecting return duct.

OVERALL CABINET

WidthBDepthCHeightDInEOut

in.

22.4 25.6 44.6 16.9 13.9 5.4 2.4 3.5

cm 56.8 65.1 113.3 42.9 35.3 13.7 6.1 8.9 34.5 24.6 18.3 15.4 20.8 26.4 23.5 27.9 5.6 53.6 51.3 51.8 in.

22.4 25.6 48.6 16.9 13.9 5.4 2.4 3.5

cm 56.8 65.1 123.4 42.9 35.3 13.7 6.1 8.9 34.5 24.6 18.3 15.4 20.8 26.4 23.5 27.9 5.6 53.6 61.5 51.8 in.

22.4 25.6 52.6 16.9 13.9 5.4 2.4 3.5

cm 56.8 65.1 133.6 42.9 35.3 13.7 6.1 8.9 34.5 24.6 18.3 15.4 20.8 26.4 23.5 27.9 5.6 53.6 71.6 51.8 in.

25.4 30.6 54.6 18.9 15.9 5.4 2.4 3.5

cm 64.5 77.8 138.7 48.0 40.4 13.7 6.1 8.9 33.3 24.6 18.3 18.3 22.1 34.4 33.7 26.7 5.6 66.3 71.6 56.9 in.

25.4 30.6 58.6 18.9 15.9 5.4 2.4 3.5

cm 64.5 77.8 148.8 48.0 40.4 13.7 6.1 8.9 33.3 24.6 18.3 18.3 22.1 34.4 33.7 26.7 5.6 66.3 81.8 56.9 in.

25.4 30.6 62.6 18.9 15.9 5.4 2.4 3.5

cm 64.5 77.8 159.0 48.0 40.4 13.7 6.1 8.9 33.3 24.6 18.3 18.3 22.1 34.4 33.7 26.7 5.6 66.3 91.9 56.9

LEGEND

/4-in. PVC FPT and is switchable from side to front.

WATER CONNECTIONS (in.) ELECTRICAL KNOCKOUTS (in.)

12 3 4 5

HWG

Out

Cond-

ensate

Loop

HWG

Water

FPT

(in.)

3/4 1/2

11/2

/2 conduit

Therm

13.6 9.7 7.2 6.1 8.2 10.4 9.3 11.0 2.2 21.1 20.2 20.4

13.6 9.7 7.2 6.1 8.2 10.4 9.3 11.0 2.2 21.1 24.2 20.4

13.6 9.7 7.2 6.1 8.2 10.4 9.3 11.0 2.2 21.1 28.2 20.4

13.1 9.7 7.2 7.2 8.7 13.6 13.3 10.5 2.2 26.1 28.2 22.4

13.1 9.7 7.2 7.2 8.7 13.6 13.3 10.5 2.2 26.1 32.2 22.4

13.1 9.7 7.2 7.2 8.7 13.6 13.3 10.5 2.2 26.1 36.2 22.4

/2 conduit

Ext

Pump

/4 conduit

Power

Supply

DISCHARGE CONNECTION

Outlet Opening Only

MNOSupply

Width

Supply

Depth

RETURN CONNECTION

Using Return Air Opening

QRSReturn

Depth

T Return Height

a506743ef. eps

Blower

Opening

Front

Air Coil Side

Right Return/Bottom Discharge

Floor Foot Print (Top View)

ASP

LEGEND

ASP — Alternate Service Panel BSP — Blower Service Panel CAP — Control Access Panel CSP — Compressor Service Panel

Blower

Opening

Front

CSP

ASP

3’ Service

Access Left Rtn

(right opposite)

Standard Filter Bracket

CAP

BSP

Condensate 3/4”

FPT

ASP

Air Coil Side

3’ Service

Access

Air Coil

Left Return/Bottom Discharge

Floor Foot Print (Top View)

1.1

CSP

Power Supply

”

HV Knockout

3/4

1/2

”

Low Voltage

1/2

”

LV Knockout

Air Coil

Knockout

CSP

Isometric View

1.6

CAP

BSP

1.6

2 1

Front

Right ReturnAir Coil Opening (Right Side View)

Front

Condensate

”

FPT

3/4

Right Return

Back

Left Return -

Air Coil Opening

(Left Side View)

Condensate 3/4

”

FPT

Front-View

Left Return

Fig. 8 — 50RDS Dimensional Data

Supply Air

Building

Flexible Connection

Return

Air

Power

Thermostat Wiring

Compressor Access Panel

NOTE: Ball valve with integral pressure temperature plug recommended.

Loop

Water Out

Water In

Field-supplied stainless steel braid hose with integral “ J” swivel

Ball Valve with optional integral P/T plug (typical for supply and return piping)

Balancing Valve (field installed and calibrated accessory)

Low Pressure

Drop Water Control Valve (optional) (field-installed accessory)

Fig. 9 — Typical Vertical Installation —

50RVC,RVR,RVS Units

Flexible Connection

Return

Air

Power

Thermostat Wiring

Compressor Access Panel

NOTE: Ball valve with integral pressure temperature plug recommended.

Supply Air

Building Loop

Water Out

Field-supplied stainless steel braid hose

with integral “ J” swivel

Flexible Connection

Water In

Balancing Valve

(field-installed

and calibrated

accessory)

Low Pressure

Drop Water Control Valve (optional) (field-installed accessory)

Ball Valve with optional integral P/T plug (typical for supply and return piping)

conversion process is the same for right and left return configurations. See Fig. 11 and 12.

NOTE: It is not possible to convert return air between left or right return models in the field due to refrigerant piping changes.

Preparation

— The unit should be on the ground in a well lit area for conversion. Hung units should be taken down to ground level before converting.

Side to Back Discharge Conversion

1. Remove screws to free the top and discharge panels. See Fig. 11.

2. Remove the access panel and set aside.

3. Lift the discharge panel from side of unit and rotate it to back using care not to damage blower wiring.

4. Check blower wire routing and connections for undo tension or contact with sheet metal edges. Re-route if necessary.

5. Check refrigerant tubing for contact with other components. Adjust if necessary.

6. Reinstall top panel using screws set aside in Step 1.

NOTE: Location for some screws at bottom of discharge panel may have to be changed.

7. Manually spin fan wheel to check for obstructions. Adjust for any obstruction found.

8. Replace access panel.

Back to Side Discharge Conversion

— Follow instructions above for Side to Back Discharge Conversion, noting the panels would be reversed.

Water

Connection End

Remove Screws

Return Air

Fig. 10 — Typical Downflow Installation —

50RDS Units

Step 3 — Unit Location — The following guidelines

should be considered when choosing a location for a WSHP:

• Units are for indoor use only.

• Locate in areas where ambient temperatures are between 40 F and 100 F and relative humidity is no greater than 75%.

• Provide sufficient space for water, electrical and duct connections.

• Locate unit in an area that allows easy access and removal of filter and access panels.

• Allow enough space for service personnel to perform maintenance.

• Return air must be able to freely enter the space if unit needs to be installed in a confined area such as a closet.

NOTE: Correct placement of the horizontal unit can play an important part in minimizing sound problems. Since ductwork is normally applied to these units, the unit can be placed so that the principal sound emission is outside the occupied space in sound-critical applications. A fire damper may be required by the local code if a fire wall is penetrated.

FIELD CONVERSION OF DISCHARGE AIR — The discharge air of the 50RHC,RHR,RHS horizontal units can be converted between side and back discharge in the field. The

Side Discharge

Water

Connection End

Return Air

Move to Side

Water

Connection End

Back Discharge

Replace Screws

Fig. 11 — Conversion Left Return, Side Discharge to Back Discharge

Rotate

Return Air

Drain

Discharge Air

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