Carrier Aquazone 50PSW025 Installation, Start-Up And Service Instructions Manual
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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
Step 3 - Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 4 - Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 5 - Connect Piping. . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 6 - Wire Electrical Connections . . . . . . . . . . . 11
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . 16-18
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19,20
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 19
Cleaning and Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 20
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 20
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20,21
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Units with Aquazone Complete C Control . . . . . . . 20
Off Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Heating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cooling Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21,22
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 22
Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . .22,23
50PSW START-UP CHECKLIST . . . . . . . . . . . CL-1,CL-2
IMPORTANT: Read the entire instruction manual before
starting installation.
Catalog No. 04-53500103-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Water-to-Water Source Heat Pump
with Puron
SAFETY CONSIDERATIONS
Page
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-
tion of cleaning coils. All other operations should be performed
by trained service personnel. When working on air-condition-
ing 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, 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.
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. WARN-
ING 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.
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. Install lock-
out tag.
Form 50PSW-3SI
Aquazone™
50PSW025-420
®
Refrigerant (R-410A)
WARNING
Pg 1
8-14
Replaces: NEW
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Summary of Contents for Carrier Aquazone 50PSW025
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Page 1: Table Of Contents
Aquazone™ 50PSW025-420 Water-to-Water Source Heat Pump ® with Puron Refrigerant (R-410A) Installation, Start-Up, and Service Instructions CONTENTS SAFETY CONSIDERATIONS Page Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical compo- SAFETY CONSIDERATIONS ....1,2 nents. -
Page 2: General
below to prepare a unit for installation. See Tables 1 and 2 for unit physical data. WARNING Units are designed for indoor installation only. Be sure to al- DO NOT USE TORCH to remove any component. System low adequate space around the unit for servicing. See Fig. 1-3 contains oil and refrigerant under pressure. - Page 3 Table 2 — 50PSW 122-420 Unit Physical Data 50PSW UNIT SIZE Compressor Type Scroll Scroll Scroll Scroll Scroll Scroll Quantity Maximum Water Working Pressure 400/3100 400/3100 400/3100 400/3100 400/3100 400/3100 (psig/kPa) Water Connection Size (in.) Refrigeration Charge (oz/ckt) Operating Weight (lb) 1230 1550 1700...
- Page 4 ELECTRICAL CONNECTIONS UNIT REAR LEFT SIDE FRONT LEFT SIDE SOURCE OUT LOAD OUT SOURCE IN LOAD IN DIMENSIONS (INCHES) WATER UNIT CONN. SIZE (FPT) 37.50 27.62 7.00 8.38 9.25 33.50 20.75 13.50 17.50 3.50 46.00 28.00 37.50 19.75 4.50 8.38 9.25 33.50 24.00...
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Page 5: Protection
ELECTRICAL CONNECTIONS UNIT REAR LEFT SIDE FRONT LEFT SIDE SOURCE OUT LOAD OUT SOURCE IN LOAD IN DIMENSIONS (INCHES) WATER UNIT CONN. SIZE (FPT) 70.00 44.00 8.50 24.50 10.50 49.00 17.50 30.00 20.50 3.50 46.00 28.00 70.00 44.00 4.50 24.50 10.50 49.00 17.50... -
Page 6: Inspect Unit
It is imperative that or should any known hazards exist in your area, Carrier recom- all air is eliminated from the closed loop side of the heat mends proper testing to assure the well water quality is suitable exchanger to prevent condenser fouling. -
Page 7: Earth Coupled Geothermal Systems
water-to-water unit. A bladder type expansion tank may be EARTH COUPLED GEOTHERMAL SYSTEMS used to maintain pressure on the system. (Fig. 6) — Closed loop and pond applications require special- ized design knowledge. No attempt at these installations Avoid using low voltage (24 volt) solenoids, using them should be made unless the dealer has received specialized may overload the unit transformer or interfere with the lock-out training. - Page 8 — Pressure Tank — Ball Valves — Solenoid Valve (Slow Closing) — Hose Kit — P/T Kit — Load Side Connections* — Low Voltage Control Connection* — Vibration Pad — Line Voltage Disconnect WATER OUT WATER IN NOTE: Water and electrical connection locations vary depending on model. Connect as required per unit labels. Fig.
- Page 9 — Polybutylene or Polyethelene with Insulation — Ground Loop Pumping Package (GLP) — Ground Loop Connection Kit — P/T Plugs — Load Side Connections* — Low Voltage Control Connection* — Vibration Pad — Line Voltage Disconnect NOTE: Water and electrical connection locations vary depending on model. Connect as required per unit labels. Fig.
- Page 10 Table 3 — Water Quality Guidelines CLOSED CONDITION OPEN LOOP AND RECIRCULATING WELL** MATERIAL* RECIRCULATING† Scaling Potential — Primary Measurement Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below. pH/Calcium pH < 7.5 and Ca Hardness, <100 ppm Hardness Method Index Limits for Probable Scaling Situations (Operation outside these limits is not recommended.) Scaling indexes should be calculated at 150 F for direct use and HWG applications, and at 90 F for indirect HX use.
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Page 11: Step 6 - Wire Electrical Connections
All field wiring must comply with local and national fire, Step 6 — Wire Electrical Connections safety and electrical codes. Power to the unit must be within the operating voltage range indicated on the unit’s nameplate. On WARNING three phase units, phases must be balanced within 2%. Properly sized fuse or HACR (heating, air-conditioning, To avoid possible injury or death due to electrical shock, and refrigeration) circuit breakers must be installed for branch... -
Page 16: Pre-Start-Up
• Optional freeze protection sensor, mounted close to con- PRE-START-UP densing water coil, monitors refrigerant temperature When the installation is complete, System Checkout — between condensing water coil and thermal expansion follow the system checkout procedure outlined below before valve. If temperature drops below or remains at freeze starting up the system. - Page 17 Y1=1 Power/Switchs/Sensor Status Check 18VAC > Lockout Can Be Set To 4 Via Dip Switch Blink Code On Status LED Soft Lockout HPC = 1 COUNT = 2 Record Alarm Start Counter (If Applicable) TIME > 120 LPC = 1 Start Timer TIME >...
- Page 18 Red: Fault indicator with blink codes as follows: age supply. • One blink—High pressure lockout 3. Carrier recommends the following guidelines for wiring • Two blinks—Low pressure lockout between a thermostat and the unit: 18 GA up to 60 ft, 16 •...
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Page 19: Start-Up
It is important to be START-UP Scroll Compressor Rotation — certain compressor is rotating in the proper direction. To Use the procedure outlined below to initiate proper unit determine whether or not compressor is rotating in the proper start-up. direction: NOTE: This equipment is designed for indoor installation 1. -
Page 20: Antifreeze
Table 8 — Approximate Fluid Volume (gal.) per 100 Ft of Pipe CAUTION PIPE DIAMETER (in.) VOLUME (gal.) To avoid possible damage to a plastic (PVC) piping sys- Copper tem, do not allow temperatures to exceed 110 F. 1.25 Raise the loop temperature to 100F. Circulate the solu- Rubber Hose tion for a minimum of 8 to 24 hours. -
Page 21: Heating Mode
thermostat call (Y) is still present the Complete C or Deluxe D When the unit is operated in the heating Heating Mode — control will run the compressor once the ASC (anti-short cycle) mode and the controlled water temperature is below the set timer has expired and will try to satisfy the call. -
Page 22: Condenser Cleaning
Proper water treatment can minimize tube fouling and pitting. If such conditions are anticipated, water treatment TANK REMOVE WATER analysis is recommended. Refer to the Carrier System Design REGULATING VALVE Manual, Part 5, for general water conditioning information. RETURN FINE MESH... - Page 23 Table 11 — Troubleshooting FAULT POSSIBLE CAUSE SOLUTION Power supply off Apply power, close disconnect. Blown fuse Replace fuse or reset circuit breaker. Check for correct fuses. Broken or loose wires Replace or tighten the wires. Check for loose or broken wires at compressor, capacitor, or contactor. Voltage supply low If voltage is below minimum voltage specified on unit data plate, contact local power company.
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Page 26: Manufacturer Reserves The Right To Discontinue, Or Change At Any Time, Specifications Or Designs Without Notice And Without Incurring Obligations
© Carrier Corporation 2014 8733937867 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500103-01 Printed in U.S.A. Form 50PSW-3SI Pg 26 8-14 Replaces: NEW... -
Page 27: 50Psw Start-Up Checklist
50PSW START-UP CHECKLIST CUSTOMER:___________________________ JOB NAME: MODEL NO.:___________________________ SERIAL NO.:______________ DATE: LOOP TYPE: ___________________________ ANTIFREEZE TYPE AND %:______________________ 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) -
Page 28: Manufacturer Reserves The Right To Discontinue, Or Change At Any Time, Specifications Or Designs Without Notice And Without Incurring Obligations
(DEG F) *Use 500 for water, 485 for antifreeze. 8733937867 © Carrier Corporation 2014 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500103-01 Printed in U.S.A.