Table of Contents
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 - Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
• PROTECTION
• INSPECT UNIT
Step 3 - Unit Location. . . . . . . . . . . . . . . . . . . . . . . . . . . 6
• FIELD CONVERSION OF DISCHARGE AIR
Step 4 - Mounting the Unit . . . . . . . . . . . . . . . . . . . . . . 7
Step 5 - Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
• SOUND ATTENUATION
• EXISTING DUCT SYSTEM
Step 6 - Condensate Drain . . . . . . . . . . . . . . . . . . . . . . 7
Step 7 - Piping Connections . . . . . . . . . . . . . . . . . . . . 8
• GROUND-LOOP APPLICATIONS
Step 8 - Electrical Wiring. . . . . . . . . . . . . . . . . . . . . . . . 9
• POWER CONNECTION
• 220-VOLT OPERATION
• PSC BLOWER SPEED SELECTION
Step 9 - Low Voltage Wiring. . . . . . . . . . . . . . . . . . . . 16
• THERMOSTAT CONNECTIONS
• WATER FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16,17
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .17,18
C Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 17
C Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 17
D Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 17
D Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 17
D Control Accessory Relay Configurations . . . . . 18
Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 18
Outdoor Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 18
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-21
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 19
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 19
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 19
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 21
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 005-00042
Book 1
4
Tab
5a 5a
Installation, Start-Up, and
Service Instructions
Page
Printed in U.S.A.
Water Source Heat Pumps
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 21
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21,22
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Units with Aquazone Complete C Control . . . . . . . 21
Units with Aquazone Deluxe D Control . . . . . . . . . . 21
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22,23
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Aquazone Deluxe D Control LED Indicators . . . . . 23
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-25
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 24
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 24
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 24
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 25
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 25-27
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
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 compo-
nents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func-
tions 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 precau-
tions in the literature, tags and labels attached to the unit, and
other safety precautions that may apply.
Improper installation, adjustment, alteration, service, main-
tenance, 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 individ-
ual instructions packaged with the kits or accessories when
installing.
Form 50RHE-C1SI
Pg 1
Aquazone™
50RHE006-060
Horizontal Unit
50 Hz, CE Mark
R-407C
Page
2-04
Replaces: New
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Related Manuals for Carrier AQUAZONE 50RHE006-060
Summary of Contents for Carrier AQUAZONE 50RHE006-060
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Page 1: Table Of Contents
Installation, Start-Up, and Service Instructions CONTENTS SAFETY CONSIDERATIONS ....1,2 GENERAL ........2 INSTALLATION . -
Page 2: General
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 electrical codes for special installation requirements. - Page 3 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.
- Page 4 WATER CONNECTIONS OVERALL CABINET 50RHE UNITS Width Depth Height 22.4 43.1 11.3 006-012 56.8 109.5 28.7 13.7 015-024 in. 22.4 43.1 17.3 56.8 109.5 43.9 12.4 22.4 53.2 19.3 56.8 135.1 49.0 13.7 22.4 53.2 19.3 56.8 135.1 49.0 13.7 22.4 62.2 19.3...
- Page 5 Field-supplied transition to minimize pressure loss Supply Air Flexible Connection Insulated supply duct with at least one 90 degree elbow Field-Supplied to reduce air noise Electric Heat (field supplied) (if applicable) 3/8” Threaded Rod (by others) Vibration Isolator (white-compressor end and red-blower end) size 042-070 Washer...
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Page 6: Step 3 - Unit Location
Step 3 — Unit Location — The following guidelines should be considered when choosing a location for a WSHP unit: • Units are for indoor use only • Locate in areas where ambient temperatures are between 4.4 C and 37.8 C and relative humidity is no greater than •... -
Page 7: Venting
Step 4 — Mounting the Unit — should be mounted using the factory-installed hangers. Proper attachment of hanging rods to building structure is critical for safety. See Fig. 2 and 5. Rod attachments must be able to sup- port the weight of the unit. See Table 1 for unit operating weights. -
Page 8: Ground-Water Applications
3 types of WSHP piping systems to choose from: water loop, ground-water and ground loop. Refer to Piping Section of Carrier System Design Manual for addi- tional information. All WSHP units use low temperature soldered female pipe... -
Page 9: Step 8 - Electrical Wiring
Water Supply and Quantity — Check water supply. Water supply should be plentiful and of good quality. See Table 2 for water quality guidelines. IMPORTANT: Failure to comply with the above required water quality and quantity limitations and the closed- system application design requirements may cause damage to the tube-in-tube heat exchanger that is not the responsi- bility of the manufacturer. - Page 10 COMPONENT LOCATION NOTE 5 TYPICAL TRANS T-STAT SIZES: 015-036 SEE NOTE 6 FOR DRY ALARM CONTACT TRANS SIZES: 006, 009, 012 — Alarm Relay Contacts — Blower Relay — Compressor Capacitor — Circuit Breaker — Compressor Contactor — Sensor, Condensate Overflow —...
- Page 11 POWER SUPPLY USE COPPER CONDUCTORS COMPONENT LOCATION TRANS SEE NOTE 5 TYPICAL T-STAT COMPR. COOLING 24VAC COMMON ALARM SEE NOTE 6 FOR DRY ALARM CONTACT — Alarm Relay Contacts — Blower Relay — Compressor Capacitor — Circuit Breaker — Compressor Contactor —...
- Page 12 SIZES: 006, 009, 012 NOTE 7 TYPICAL HEAT PUMP T-STAT SEE NOTE 5 COMPR. COOLING O/W2 24VAC COMMON ALARM SEE NOTE 6 FOR DRY CONTACT FOR ALARM COMPONENT LOCATION SIZES: 015-060 — Alarm Relay Contacts — Blower Motor — Blower Motor Capacitor —...
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Page 13: Supply Voltage
COMPONENT LOCATION TRANS NOTE 7 TYPICAL HEAT PUMP T-STAT SEE NOTE 5 COMPR. COOLING O/W2 24VAC COMMON ALARM SEE NOTE 6 FOR DRY CONTACT FOR ALARM — Alarm Relay Contacts — Blower Motor — Blower Motor Capacitor — Blower Relay —... - Page 14 50RHE VOLTS-PHASE VOLTAGE UNIT (50 Hz) MIN/MAX 220/240-1 197/254 220/240-1 197/254 220/240-1 197/254 220/240-1 197/254 220/240-1 197/254 220/240-1 197/254 220/240-1 197/254 380-415-3 342/462 220/240-1 197/254 380-415-3 342/462 380-415-3 342/462 380-415-3 342/462 380-415-3 342/462 LEGEND — Full Load Amps HACR — Heating, Air Conditioning and Refrigeration —...
- Page 15 PSC (PERMANENT SPLIT CAPACITOR) BLOWER SPEED SELECTION — All Water Source Heat Pumps are factory set to deliver rated airflow at nominal static (37 Pa) on medium speed. Where higher static is needed, high speed can be utilized (100 to 125 Pa). Low speed will deliver approximately 85% of rated airflow (25 Pa).
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Page 16: Installation
Step 9 — Low Voltage Wiring (See Fig. 15) THERMOSTAT CONNECTIONS — The thermostat should be wired directly to the Aquazone™ control board. See Fig. 9-12. WATER FREEZE PROTECTION — The Aquazone control allows the field selection of source fluid freeze protection points through jumpers. -
Page 17: Field Selectable Inputs
AIR COIL — To obtain maximum performance, clean the air coil before starting the unit. A ten percent solution of dish- washing detergent and water is recommended for both sides of the coil. Rinse thoroughly with water. FIELD SELECTABLE INPUTS Jumpers and DIP (dual in-line package) switches on the control board are used to customize unit operation and can be configured in the field. -
Page 18: D Control Accessory Relay Configurations
Table 5 — DIP Switch Block S2 — Accessory 1 Relay Options DIP SWITCH POSITION ACCESSORY 1 RELAY OPTIONS Cycle with Fan Digital NSB Water Valve — Slow Opening LEGEND NSB — Night Setback OAD — Outdoor-Air Damper NOTE: All other DIP switch combinations are invalid. Table 6 —... -
Page 19: Scroll Compressor Rotation
Scroll Compressor Rotation — certain compressor is rotating in the proper direction. To determine whether or not compressor is rotating in the proper direction: 1. Connect service gages to suction and discharge pressure fittings. 2. Energize the compressor. 3. The suction pressure should drop and the discharge pressure should rise, as is normal on any start-up. -
Page 20: Flushing
Table 9 — Typical Unit Operating Pressures and Temperatures ENTERING WATER WATER Suction Discharge FLOW TEMP (C) Pressure Pressure (l/s per kW) (EWT) (kPa) (kPa) 0.027 225-254 269-314 –1 0.041 222-251 239-284 0.054 219-248 209-254 0.027 225-254 374-463 0.041 222-251 359-425 0.054 219-248... -
Page 21: Antifreeze
Cooling Tower/Boiler Systems — ically use a common loop temperature maintained at 15.6 to 32.2 C. Carrier recommends using a closed circuit evaporative cooling tower with a secondary heat exchanger between the tower and the water loop. If an open type cooling tower is used continuously, chemical treatment and filtering will be necessary. -
Page 22: Operation
Output EH2 will be off if FP1 is greater than 7.2 C and FP2 (when shorted) is greater than 43.3 C during Heating Stage 3 mode. This condition will have a 30-second recognition time. Also, during Heating Stage 3 mode, EH1, EH2, Fan Enable, and Fan Speed will be ON if G input is not active. -
Page 23: Retry Mode
Retry Mode — In Retry mode, the status LED will start to flash slowly to signal that the control is trying to recover from an input fault. The control will stage off the outputs and try to again satisfy the thermostat used to terminal Y. Once the ther- mostat input calls are satisfied, the control will continue normal operation. -
Page 24: Condensate Drain Pans
Proper water treatment can minimize tube fouling and pitting. If such conditions are anticipated, water treatment analysis is recommended. Refer to the Carrier System Design Manual, Part 5, for general water conditioning information. Follow all safety codes. Wear safety glasses and rubber gloves when using inhibited hydrochloric acid solution. -
Page 25: Refrigerant Charging
5. Read liquid line temperature on thermometer; then subtract from bubble point temperature. The difference equals subcooling temperature. 6. Compare the subcooling temperature with the normal temperature listed in Table 9. If the measured liquid line temperature does not agree with the required liquid line temperature, ADD refrigerant to raise the temperature or REMOVE refrigerant (using standard practices) to lower the temperature (allow a tolerance of ±... - Page 26 FAULT HEATING COOLING Main Power Problems HP Fault — Code 2 High Pressure LP/LOC Fault — Code 3 Low Pressure/Loss of Charge FP1 Fault — Code 4 Water Freeze Protection FP2 Fault — Code 5 Air Coil Freeze Protection Condensate Fault — Code 6 Over/Under Voltage —...
- Page 27 FAULT HEATING COOLING Only Compressor Runs Unit Does Not Operate in Cooling Insufficient Capacity/ Not Cooling or Heating Properly High Head Pressure Low Suction Pressure Low Discharge Air Temperature in Heating High Humidity LEGEND RV — Reversing Valve Table 16 — Troubleshooting (cont) POSSIBLE CAUSE Thermostat wiring Check G wiring at heat pump.
- Page 30 Copyright 2004 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 Catalog No. 005-00042 Printed in U.S.A. Form 50RHE-C1SI Pg 30 2-04 Replaces: New 5a 5a...
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Page 31: Start-Up Checklist
CUSTOMER:___________________________ MODEL NO.:___________________________ I. PRE-START-UP DOES THE UNIT VOLTAGE CORRESPOND WITH THE SUPPLY VOLTAGE AVAILABLE? (Y/N) HAVE THE POWER AND CONTROL WIRING CONNECTIONS BEEN MADE AND TERMINALS TIGHT? (Y/N) HAVE WATER CONNECTIONS BEEN MADE AND IS FLUID AVAILABLE AT HEAT EXCHANGER? (Y/N) HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN? (Y/N) HAS CONDENSATE CONNECTION BEEN MADE AND IS A TRAP INSTALLED? (Y/N) - Page 32 SUBCOOLING = DISCHARGE BUBBLE POINT TEMPERATURE – LIQUID LINE TEMPERATURE (DEG C) *Use 4.16 for water, 4.03 for antifreeze. Copyright 2004 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book Catalog No.
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