Carrier Aquazone 50PSW025 Installation, Start-Up And Service Instructions Manual
Water-to-water source heat pump with puron® refrigerant (r-410a)
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 3
• STORAGE
• PROTECTION
• INSPECT UNIT
Step 3 — Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 4 — Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 5 — Connect Piping . . . . . . . . . . . . . . . . . . . . . . 8
• WATER SUPPLY AND QUALITY
• COOLING TOWER/BOILER APPLICATION
• WELL WATER SYSTEMS
• EARTH COUPLED GEOTHERMAL SYSTEMS
Step 6 — Wire Field Power Supply . . . . . . . . . . . . . 13
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Step 7 — Wire Control Connections . . . . . . . . . . . . 23
• COMPLETE C AND DELUXE D CONTROL
• AUXILIARY RELAY (DELUXE D ONLY)
• ENERGY MANAGEMENT SWITCH (DELUXE D
ONLY)
• PHASE MONITOR
• ALARM OUTPUT
• W2W OPEN CONTROL
• CONTROL TRANSFORMER
Step 8 — Configure Unit Control Components . . . 23
• UPM CONFIGURATION
• UPM FEATURES
• CONSIDERATIONS
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
• ENVIRONMENT
• POWER SUPPLY
Scroll Compressor Rotation . . . . . . . . . . . . . . . . . . 26
Cleaning and Flushing . . . . . . . . . . . . . . . . . . . . . . . 27
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
• FREEZE PROTECTION
System Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
• FLOW VERIFICATION
• FLOW REGULATION
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . 28
Ground Coupled, Closed Loop and Plateframe Heat
Exchanger Well Systems . . . . . . . . . . . . . . . . . . . 28
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500145-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Water-to-Water Source Heat Pump
with Puron
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Page
Unit Protection Model (UPM) . . . . . . . . . . . . . . . . . .31
Units with Complete C or Deluxe Controls . . . . . . .31
• COOLING MODE
• HEATING MODE
Units with W2W Open Controls . . . . . . . . . . . . . . . .31
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . .31
WSHP Open W2W . . . . . . . . . . . . . . . . . . . . . . . . . . .31
• OCCUPANCY
• BAS (BUILDING AUTOMATION SYSTEM) ON/OFF
• REMOTE OCCUPANCY CONTACT
• SHUTDOWN
• POWER FAIL RESTART DELAY
• CHANGEOVER TIMEGUARD
• LOAD PUMP
• SOURCE WATER ISOLATION VALVE/SOURCE
WATER PUMP OUTPUT
• COOLING (SINGLE MODULE)
• ADDITIONAL COOLING FUNCTIONS
• COOLING CONTROL MODES
• HEATING (SINGLE MODULE)
• ADDITIONAL HEATING FUNCTIONS
• HEATING CONTROL MODES
• MUTLI-UNIT MASTER
• EQUIPMENT ALARM
• SERVICE TEST
Configuring Multiple W2W WSHP for
Master/Slave Operation . . . . . . . . . . . . . . . . . . . . .38
• W2W MASTER CONFIGURATION PARAMETERS
• W2W SLAVE CONFIGURATION
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Refrigerant System . . . . . . . . . . . . . . . . . . . . . . . . . .40
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . .40
• GRAVITY FLOW METHOD
• FORCED CIRCULATION METHOD
Checking System Charge . . . . . . . . . . . . . . . . . . . . . 41
Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 41
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . .41
50PSW START-UP CHECKLIST . . . . . . . . . . . . .
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.
Form 50PSW-4SI
Pg 1
Aquazone
50PSW025-420
Refrigerant (R-410A)
®
11-21
Replaces: 50PSW-3SI
™
CL-1
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Summary of Contents for Carrier Aquazone 50PSW025
- Page 1 Aquazone ™ 50PSW025-420 Water-to-Water Source Heat Pump with Puron Refrigerant (R-410A) ® Installation, Start-Up, and Service Instructions CONTENTS OPERATION ....... .31 Power Up Mode .
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Page 2: Installation
To remove a component, wear protective gloves and goggles accordance with Carrier’s recommended service clearances and and proceed as follows: installation instructions. Please refer to the Carrier Commercial a. Shut off electrical power to unit. WSHP Warranty Statement (document number 04-570008-01) for details on warranty exclusions regarding equipment, access, b. -
Page 3: Step 2 - Check Unit
NOTE: A sound control accessory package may be used to Step 2 — Check Unit help eliminate sound in sensitive spaces. Upon receipt of shipment at the jobsite, carefully check the shipment against the bill of lading. Make sure all units have been Provide sufficient access to allow maintenance and servicing received. - Page 4 Optional Special Unit Mounted Unit Front Left Side Controller Source Load Outlet Outlet 24.0 HRP Outlet HRP Inlet Electrical Knockouts Source Inlet 24.0 32.5 Load Inlet DIMENSIONS (INCHES) UNIT FIELD SIZE CONN.* CONN. 2.70 2.50 13.70 2.50 3.25 1.95 14.25 1.95 7.15 11.00...
- Page 5 Electrical Connections Unit Rear Left Side Front Left Side Electrical Connections 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...
- Page 6 Sizes 025 thru 071 (Top View) No access panels are located on this side. Source Side Load Side l a i l a i and bottom and bottom No access is No access is required on this required on this side.
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Page 7: Inspect Unit
Sizes 240 thru 420 (Top View) Access on this side of the unit is required for piping and insulation. No access panels are located on this side. Water Connections - Qty 2 for the source Source Side Load Side and bottom and bottom No access is required on this... -
Page 8: Step 5 - Connect Piping
It is imperative that all air is eliminated available or should any known hazards exist in your area, Carrier from the closed loop side of the heat exchanger to prevent recommends proper testing to assure the well water quality is condenser fouling. - Page 9 1 — Ball Valves 2 — Hose Kits 3 — P/T Plugs 4 — Load Side Connections* 5 — Low Voltage Control Connection* 6 — Vibration Pad 7 — Line Voltage Disconnect 8 — Supply and Return Lines of Central System *Water and electrical connection locations vary depending on model.
- Page 10 1 — Pressure Tank 2 — Ball Valves 3 — Solenoid Valve (Slow Closing) 4 — Hose Kit 5 — P/T Kit 6 — Load Side Connections* 7 — Low Voltage Control Connection* 8 — Vibration Pad 9 — Line Voltage Disconnect Water Out Water In *Water and electrical connection locations vary depending on model.
- Page 11 — 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 *Water and electrical connection locations vary depending on model. Connect as required per unit labels. Fig.
- Page 12 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 13: Step 6 - Wire Field Power Supply
All field wiring must comply with local and national fire, safety Step 6 — Wire Field Power Supply 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, and To avoid possible injury or death due to electrical shock, open refrigeration) circuit breakers must be installed for branch circuit... - Page 14 DWG No. 50PSW111000 Rev. 3 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT LOAD FREEZE CONDITION Fig. 8 — Unit Sizes 025-071, 1-Phase, Complete C/Deluxe D Control Package...
- Page 15 DWG No. 50PSW120000 Rev. 3 Fig. 9 — Unit Size 122,1-Phase, Complete C/ Deluxe D Control Package...
- Page 16 HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT LOAD FREEZE CONDITION Fig. 10 — Unit Sizes 025-071, 1-Phase, W2W Open Control Package...
- Page 17 Fig. 11 — Unit Sizes 122, 1-Phase, W2W Open Control Package...
- Page 18 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT EVAPORATOR FREEZE CONDITION Fig. 12 — Unit Size 025-71, 180, 210; 3-Phase; Complete C/Deluxe D Control Package...
- Page 19 Fig. 13 — Unit Size 122, 240-420; 3-Phase Complete C/Deluxe D Control Package...
- Page 20 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT EVAPORATOR FREEZE CONDITION Fig. 14 — Unit Size 025-071, 180, 210; 3-Phase W2W Open Control Package...
- Page 21 Fig. 15 — Unit Size 122, 240-420; 3-Phase W2W Open Control Package...
- Page 22 UNIT TERMINAL BLOCK CLASS II VOLTAGE FACTORY WIRED COMPONENTS J1-9 CAN BE USED TO CONNECT WATER FLOW SWITCH, FIRE ALARM FIELD WIRED COMPONENTS AND/OR PHASE MONITOR OPTIONS CMR 2 CONNECTOR WILL BE INCLUDED ON ALL W2W HARNESSES BUT STANDARD COMPONENTS: ONLY NEEDS TO BE CONNECTED TO CMR2 ON TWO STAGE UNITS THAT HAVE 2 CMR'S.
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Page 23: Pre-Start-Up
See the applicable wiring diagrams within this document Transformer switched to lower voltage tap if necessary. for details. For further instructions on W2W Open, please visit HVACPartners.com or Carrier.com for the W2W Open 10. Service/access panels are in place. Integration Guide and Points/Properties Guide. - Page 24 NUMBER ITEM Power LED Indicator Status LED Indicator NUMBER ITEM Source Freeze 1 Protection Temperature Selection (R17) Board Power Indicator Load Freeze 2 Protection Temperature Selection (R77) UPM Status LED Indicator UPM II Board Settings Water Source Coil Freeze Protection Temperature Freeze Connection (Freeze 1) Selection (R30) Load Coax Freeze Connection (Freeze 2)
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Page 25: Operating Limits
Carrier recommends the following guidelines for wiring large electrical spike. between a thermostat and the unit: 18 GA up to 60 ft, 16 GA up to 100 ft and 14 GA up to 140 ft. - Page 26 Table 6 — Cooling Mode Operating Pressure (psig) ENTERING SOURCE CONDENSER TEMPERATURE (°F) ENTERING LOAD/EVAP TEMP 75°F 85°F 95°F (°F) SUCTION DISCHARGE SUCTION DISCHARGE SUCTION DISCHARGE PRESSURE PRESSURE PRESSURE PRESSURE PRESSURE PRESSURE 99-116 290-320 107-123 325-358 107-123 370-400 91-107 265-311 91-107 303-350 99-116...
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Page 27: Cleaning And Flushing
Cleaning and Flushing Antifreeze Cleaning and flushing of the piping system is the single most In areas where entering loop temperatures drop below 40°F or important step to ensure proper start-up and continued efficient where piping will be routed through areas subject to freezing, operation of the system. -
Page 28: System Flow
Verify that the water flow control cartridge matches the System Flow application flow requirement. (See Fig. 20 and 21.) FLOW VERIFICATION Cooling Tower/Boiler Systems The 50PSW WSHP units do not include a factory flow switch as These systems typically use a common loop maintained at 60°F to standard. - Page 29 Fig. 20 — Water Pressure Drop Curves (025-071)
- Page 30 Fig. 21 — Water Pressure Drop (120-420)
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Page 31: Operation
written by the third-party device to set the controls occupied state OPERATION as required. This method of occupancy determination takes Power Up Mode precedence over all others. No special configuration is necessary to utilize this function. Object address information is also The unit will not operate until all the inputs, terminals and safety described in the W2W Integration Guide. - Page 32 The Iso Valve Close Delay default value is 45 seconds and may be The following conditions must be true in order for the Cooling adjusted between 0 and 180. NOTE: On a request for unit Setpoint OA Reset algorithm to run: shutdown (described previously), the valve will remain open until •...
- Page 33 The following conditions must be true in order for the cooling • The Changeover time guard has elapsed algorithm to run in the OAT control mode: • Load water temp is above the Chilled Water Supply • A valid Outdoor Air Temperature is present Setpoint •...
- Page 34 • The preconditions for heating operation (described When conditions require heating, the module will operate as previously) have been met described in the Heating section. The Outdoor Air Hot Water Supply setpoint reset function is available provided its associated • The module has a valid Outdoor Air Temperature preconditions (described previously) are met.
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Page 35: Service Test
MUTLI-UNIT MASTER SERVICE TEST On installations having multiple Water to Water Source Heat The W2W provides a built in Service Test function to allow the Pumps serving a common load, the heat pumps may be controlled installing technician a means to test the modules process outputs as a singular heating or cooling source utilizing the Multi-unit independently. - Page 36 Fig. 22 — W2W Open Control Board...
- Page 37 Fig. 23 — Unit Protection Module (UPM) Sequence Of Operation...
- Page 38 Control Mode Selection Configuring Multiple W2W WSHP for Master/Slave Operation For two pipe systems Manual Heat or Manual/Cool, four pipe systems SPT, OAT, or System T1Temp On installations having multiple Water to Water Source Heat Pumps serving a common load, the heat pumps may be controlled Refrigerant Circuits as a singular heating or cooling source utilizing the Multi-unit Configure for the correct number of refrigerant circuits in the unit...
- Page 39 Fig. 24 — W2W Master Configuration Parameters- Unit Configurations Fig. 25 — W2W Master Configuration Parameters- Setpoints Fig. 26 — W2W Master Configuration Parameter-Service Configuration...
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Page 40: Gravity Flow Method
Proper water treatment can minimize tube fouling and pitting. If Tank such conditions are anticipated, water treatment analysis is Remove Wa ter Regulating Va lve recommended. Refer to the Carrier System Design Manual, Part 5, for general water conditioning information. Return Fine Mesh CAUTION Screen Follow all safety codes. -
Page 41: Checking System Charge
Checking System Charge Refrigerant Charging Units are shipped with full operating charge. If recharging is WARNING necessary: Insert thermometer bulb in insulating rubber sleeve on liquid To prevent personal injury, wear safety glasses and gloves line near filter drier. Use a digital thermometer for all when handling refrigerant. - Page 42 Note: a liquid line drier may be required. 8733830974 © 2021 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500145-01 Printed in U.S.A.
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Page 43: 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 44: Heating And Cooling Cycle Analysis
SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE (DEG F) *Use 500 for water, 485 for antifreeze. 8733830974 © 2021 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500145-01 Printed in U.S.A.