Page 1: Table Of Contents
Aquazone ™ 50PSH, PSV007-070 Single-Stage Water Source Heat Pumps with Puron Refrigerant (R-410A) ® Installation, Start-Up, and Service Instructions • PERMANENT SPLIT CAPACITOR (PSC) MOTOR CONTENTS • CONSTANT TORQUE (ECM) MOTOR Page • CONSTANT AIRFLOW (ECM) MOTOR SAFETY CONSIDERATIONS ....2 System Flushing and Filling .
Page 2: Safety Considerations
• COMPRESSOR FAULT/LOCKOUT ALARM SAFETY CONSIDERATIONS • INSUFFICIENT VENTILATION ALARM Installation and servicing of air-conditioning equipment can be • RELATIVE HUMIDITY ALARM hazardous due to system pressure and electrical components. Only • TIME SCHEDULES trained and qualified service personnel should install, repair, or •...
Page 3: General
GENERAL INSTALLATION This installation and start-up instructions literature is for Aqua- Step 1 — Check Jobsite zone™ single-stage water source heat pump systems. Installation, operation and maintenance instructions are provided Water source heat pumps (WSHPs) are single-package horizontal- with each unit. Before unit start-up, read all manuals and become ly and vertically mounted units with electronic controls designed familiar with the unit and its operation.
Page 4 Table 1 — Physical Data 007-024 50PS UNIT SIZE Compressor Type Rotary Scroll Maximum Water Working Pressure (psig) Standard Fan Motor and Blower Fan Motor Type ECM Constant Torque Fan Motor (hp) 1/10 1/10 1/10 / 1/3 Blower Wheel Size (Diameter x Width) (in.) 4.5 x 4.5 4.5 x 4.5 5.5 x 5.5...
Page 5 Horizontal Dimensions RECOMMENDED FILTER CONDENSER REPLACEMENT DUCT FRONT SIDE UNIT RACK WATER NOMINAL WATER WATER DISC. DISC. FLANGE WIDTH DEPTH* HEIGHT DUCT HEIGHT CONNECTIONS FILTER WIDTH HEIGHT HEIGHT DISC. DISC. DISC. DISC. FILTER WIDTH FILTER SIZE RACK RACK 21.75 43.25 16.75 0.50 20.25...
Page 6 Vertical Dimensions RECOMMENDED CONDENSER CABINET LEFT BOTTOM RIGHT REPLACEMENT FILTER UNIT WATER WIDTH DEPTH* HEIGHT DISCHARGE DISCHARGE EDGE SIDE WATER WATER DUCT SIDE NOMINAL DUCT RACK CONNECTIONS DEPTH WIDTH COND. FLANGE FILTER SIZE WIDTH HEIGHT DISCHARGE DISC. DRAIN HEIGHT DISC. 21.75 21.75 32.75...
Page 7: Installation Guidelines (All Units)
Carrier’s recommended service clearances and installation make fluid, electrical, and duct connection(s). If the unit is located instructions. Please refer to the Carrier Commercial WSHP War- in a confined space such as a closet, provisions must be made for ranty Statement (document number 04-570008-01) for details on return air to freely enter the space.
Page 8: Protection
PROTECTION HORIZONTAL UNIT (50PSH) Once the units are properly positioned on the jobsite, cover them While horizontal units may be installed on any level surface strong with either a shipping carton, vinyl film, or an equivalent protec- enough to hold their weight, they are typically suspended above a tive covering.
Page 9: Step 5 - Check Duct System
the unit to uninsulated duct work is not recommended as the unit’s performance will be adversely affected. Do not connect ducts di- rectly to the blower outlet; factory supplied duct collars should be used for the connection to minimize unit vibration and noise trans- mission to the ductwork and ultimately into the conditioned space.
Page 10: Step 7 - Pipe Connections
NOTE: PVC SCH40 should not be used due to system high pres- systems to choose from: water loop, ground-water and ground sure and temperature extremes. loop. Refer to Piping Section of Carrier System Design Manual Water Supply and Quantity for additional information.
Page 11 Water Flow Control Regulator Valve (field-installed Pressure (field-installed accessory) Tank accessory) Water Out Water In From Pump A50-7733 Shut-Off Valve (field-installed accessory) Strainer (field-installed accessory) (16 to 20 mesh recommended for filter sediment) Boiler Drains (field-installed) Fig. 10 — Typical Ground-Water Piping Installation...
Page 12 Table 2 — Water Quality Guidelines CLOSED CONDITION HX MATERIAL OPEN LOOP AND RECIRCULATING WELL 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 Hardness pH <...
Page 13: Ground-Loop Applications
Optional pressure-rated hose assemblies designed specifically heat pump is not restricted. All plumbing and piping connections for use with Carrier units are available. Similar hoses can be ob- must comply with local plumbing codes. tained from alternate suppliers. Supply and return hoses are fit- ted with swivel-joint fittings at one end to prevent kinking during installation.
Page 14: Step 8 - Wire Field Power Supply
Step 8 — Wire Field Power Supply See Fig. 13-32 for typical wiring diagrams. See Tables 4-5 for ad- ditional electrical data. See Tables 6-8 for data plate specifics. Please refer to the unit wiring diagram attached to the control pan- el for field installation.
Page 15 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT EVAPORATOR FREEZE CONDITION (HI) (MED) (LOW) Fig. 13 — PSC Motor Single Phase/Single Stage Complete C Control...
Page 16 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT EVAPORATOR FREEZE CONDITION (HI) (MED) (LOW) Fig. 14 — PSC Motor, Single Phase/Single Stage, Deluxe D Control...
Page 17 Fig. 15 — PSC Motor, Single Phase/Single Stage, WSHP Open Control...
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. 16 — Constant Torque Motor, Single Phase/Single Stage, Complete C Control...
Page 19 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT EVAPORATOR FREEZE CONDITION Fig. 17 — Constant Torque Motor, Single Phase/Single Stage, Deluxe D Control...
Page 20 Fig. 18 — Constant Torque Motor, Single Phase, Single Stage, WSHP Open Control...
Page 21 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT TO ECM MOTOR BROWN OUT FAULT EVAPORATOR FREEZE CONDITION ADJUST NORM TEST HGRH THERMOSTAT R C G O Y1 Y2 W1 W2 H C Fig.
Page 22 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT TO ECM MOTOR CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT ADJUST BROWN OUT FAULT NORM EVAPORATOR FREEZE CONDITION TEST HGRH THERMOSTAT R C G O Y1 Y2 W1 W2 H C Fig.
Page 23 Fig. 21 — Constant Airflow, Single Phase, WSHP Open...
Page 24 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT EVAPORATOR FREEZE CONDITION (HI) (MED) (LOW) Fig. 22 — PSC Motor, Three Phase/Single Stage, Complete C Control...
Page 25 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT EVAPORATOR FREEZE CONDITION (HI) (MED) (LOW) Fig. 23 — PSC Motor, Three Phase/Single Stage, E-Heat, Deluxe D Control...
Page 26 Fig. 24 — PSC Motor, Three Phase/Single Stage, WSHP Open...
Page 27 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT EVAPORATOR FREEZE CONDITION NOTES: 1. SEE UNIT NAMEPLATE FOR ELECTRICAL RATING. 2. ALL FIELD WIRING MUST BE IN ACCORDANCE WITH NEC-NFPA #70, COPPER CONDUCTORS ONLY. 3.
Page 28 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT LOW PRESSURE FAULT CONDENSER FREEZE CONDITION CONDENSATE OVERFLOW FAULT BROWN OUT FAULT EVAPORATOR FREEZE CONDITION Fig. 26 — Constant Torque Motor, Three Phase/Single Stage, E-Heat, Deluxe D Control...
Page 29 Fig. 27 — Constant Torque Motor, Three Phase/Single Stage, WSHP Open...
Page 30 TO ECM MOTOR UPM STATUS LED - BLINK CODES ADJUST HIGH PRESSURE FAULT NORM LOW PRESSURE FAULT TEST CONDENSER FREEZE CONDITION HGRH CONDENSATE OVERFLOW FAULT BROWN OUT FAULT THERMOSTAT EVAPORATOR FREEZE CONDITION R C G O Y1 Y2 W1 W2 H C Fig.
Page 31 UPM STATUS LED - BLINK CODES HIGH PRESSURE FAULT TO ECM MOTOR LOW PRESSURE FAULT CONDENSER FREEZE CONDITION ADJUST NORM CONDENSATE OVERFLOW FAULT BROWN OUT FAULT TEST EVAPORATOR FREEZE CONDITION HGRH THERMOSTAT R C G O Y1 Y2 W1 W2 H C Fig.
Page 32 Fig. 30 — Constant Airflow Motor, Three Phase/Single Stage, WSHP Open...
Page 33 UNIT TERMINAL BLOCK (TB1) CLASS II VOLTAGE J1-9 USED TO CONNECT FIRE ALARM RELAY OR PHASE MONITOR OPTIONS OPTIONAL WIRING FACTORY JUMPER IS INSTALLED ON J5-5 AND J5-6 IF CONDENSATE FLOAT SWITCH (NC) IS NOT PRESENT STANDARD COMPONENTS: FOR 2-STAGE UNITS, CONNECT CMR CONN ACROSS PINS 4 AND 6 OF CMR1 DATS - DISCHARGE AIR TEMP SENSOR WITH SIGNAL CMR-4 GOING TO PIN 4 AND SIGNAL CMR-2 GOING TO PIN 6.
Page 34 CAUTION: UNIT CONTAINS TWO POWER SUPPLIES - HEATER PACKAGE WIRE HARNESS PLUG CONNECTED TO MAIN CONTROL BOX NOTE: L1 AND L2 PROVIDE POWER TO MAKE SURE BOTH ARE OFF BEFORE SERVICING. CONTROL TRANSFORMER AND BLOWER MOTOR WHITE -W1 BLUE -W2 GREY -C BLACK BLACK...
Page 35 Table 4 — Standard Motor — PSC for 007-012, Constant Torque for 015-070 Motor Electrical Data 50PS RATED COMPRESSOR BLOWER MOTOR MIN. CIRCUIT UNIT VOLTAGE MAX FUSE SIZE v-ph-Hz 280/230-1-60 17.7 0.96 0.10 265-1-60 13.5 0.85 0.10 208/230-1-60 22.2 0.96 0.10 265-1-60 18.8...
Page 36 Table 5 — Constant Airflow ECM Motor Electrical Data 50PS RATED COMPRESSOR BLOWER MOTOR MIN. CIRCUIT UNIT VOLTAGE MAX FUSE SIZE v-ph-Hz 208/230-1-60 29.0 0.33 265-1-60 20.0 0.33 208/230-1-60 33.0 0.33 12.1 265-1-60 28.0 0.33 10.1 208/230-1-60 13.5 58.3 0.33 19.7 265-1-60 54.0...
Page 37 Table 6 — First Data Plate for Units with EH Option - Compressor Power Connection COMPRESSOR UNIT MODELS RATED VOLTAGE VOLTAGE MIN/MAX FLA (AMPS) MIN CIRCUIT AMPS MAX FUSE/ HACR 50PS018 208-230/60/1 197/253 33.0 208-230/60/1 197/253 13.5 58.3 13.5 16.9 50PS024 208-230/60/3 197/253...
Page 38 Table 8 — Second Data Plate for Units with Electric Heater Option and Constant Airflow ECM Motor a,b,c HEATER WATTS HEATER AMPS MOTOR CIRCUIT UNIT RATED STAGE SIZE FUSES 4,800 3,600 20.0 17.3 — 28.5 25.1 4,800 3,600 20.0 17.3 —...
Page 39: Step 9 - Wire Control Connections
Control wiring for units with constant airflow ECM blower mo- Step 9 — Wire Control Connections tors is routed through a constant airflow ECM interface board. COMPLETE C AND DELUXE D CONTROL Thermostat input wiring is connected to the 10-pin screw type ter- minal block on the lower center portion of the ECM Interface Control wiring for units with PSC and Constant Torque blower Board.
Page 40: Energy Management Switch (Deluxe D Only)
WSHP OPEN CONTROL WSHP Open is a factory installed DDC control that requires the use of Carrier ZS or WS sensors or the Carrier Equipment Touch or System Touch for space temperature sensing. WSHP Open is not compatible with thermostats or third party tem- perature sensors.
Page 41: Waterside Economizer (Eto)
Table 9 — Low Voltage VA Draw STANDARD CONSTRUCTION HOT GAS REHEAT OR ECONOMIZER OPTIONAL COMPONENTS Component Component Component Blower Relay Monitor Relay (VA draw Total from ‘Standard’ 22-26 (PSC Motors Only) per relay) Reversing Valve Additional Control Internal 2 Way 12-14 Solenoid Relays...
Page 42: Pre-Start-Up
Uncap the desired blower speed wire and terminate with PRE-START-UP 1⁄4 in. quick connect. Connect to the blower relay. System Checkout If the motor is a 460 V motor and the speed is changed from After completing the installation and before energizing unit, the high to medium or low, connect the high speed motor lead to following system checks should be made prior to initial start-up: the orange intermediate winding lead instead of simply cap-...
Page 43 Table 11 — 50PS Blower Performance, Standard Motor - PSC for 007-012, Constant Torque ECM for 015-070 50PS DEFAULT AVAILABLE EXTERNAL STATIC PRESSURE (INCHES OF WATER COLUMN) MOTOR MODEL TAP # FACTORY SPEED SIZE SETTING High — — — — —...
Page 44 Table 12 — 50PS Blower Performance Constant Airflow ECM 50PS DEFAULT AVAILABLE EXTERNAL STATIC PRESSURE (INCHES OF WATER COLUMN) MOTOR MODEL FACTORY SPEED SIZE SETTING — — — — Normal A - Normal — — — — – — — —...
Page 45: System Flushing And Filling
FLOW REGULATION System Flushing and Filling Once the piping is complete, units require final purging and loop Flow regulation can be accomplished by two methods. Most water charging. A flush cart pump of at least 1.5 hp is needed to achieve control valves have a flow adjustment built into the valve.
Page 46: Freeze Protection Selection
Calculate the total volume of fluid in the piping system. NOTE: These operating limits are not normal or continuous oper- See Table 14. Use the percentage by volume in Table 15 to deter- ating conditions. Assume that such a start-up is for the purpose of mine the amount of antifreeze to use.
Page 47: Cooling Mode Start-Up
After a few minutes of reverse operation, the scroll compressor in- Check air temperature drop across the coil when compressor ternal overload protection will open, thus activating the unit lock- is operating. Air temperature drop should be between 15°F out. This requires a manual reset. To reset the lockout, turn the and 25°F.
Page 48 Table 18 — Typical Refrigerant Pressure Ranges COOLING HEATING ENTERING TEMP. Entering Air Temp (Dry Bulb) (°F) Entering Air Temp (Dry Bulb) (°F) FLUID DIFFERENCE TEMP (°F) Suction Discharge Suction Discharge Suction Discharge Suction Discharge Suction Discharge — — — —...
Page 49: Operation
OPERATION Unit Protection Module (UPM) Figure 39 shows the UPM sequence of operations for unit safeties. Power Up Mode All 50PS units are equipped with a UPM. The unit will not operate until all the inputs, terminals and safety controls are checked for normal operation. NOTE: The compressor will have a 5-minute anti-short cycle upon power up.
Page 50: Units With Complete C Or Deluxe D Controls
which will differ from the other control packages. Below is an Units with Complete C or Deluxe D Controls overview of the different features for the WSHP Open controls. STANDBY For more details of the WHSP Open operation, please refer to the WSHP Open Integration Guide and the WSHP Points/Properties The Y and W terminals are not active in Standby mode;...
Page 51: 2-Position Hot Water / Steam Heating Reheat
Fig. 40 — WSHP Open Control Board 2-POSITION HOT WATER / STEAM HEATING REHEAT SINGLE STAGE ELECTRIC AUXILIARY HEAT The control can operate a two position, NO or NC, hot water or The control can operate a single stage of electric heat connected to steam valve connected to a coil on the discharge side of the unit a coil on the discharge side of the unit in order to maintain the de- and supplied by a boiler in order to maintain the desired heating...
Page 52: Automatic Fan Speed Control
AUTOMATIC FAN SPEED CONTROL optional coil is provided and the water loop conditions are suit- able, then the valve will open to provide cooling to the space when The control is capable of controlling up to three fan speeds. The required.
Page 53: High Condensate / Overflow Alarm
CONDENSER WATER TEMPERATURE MONITORING / TIME SCHEDULES CONTROL / ALARM The control has an onboard time clock and configurable time schedules to provide occupancy scheduling. The control has 4 configurable alarm limits for condenser water temperature. The control will verify that the water temperature is HOLIDAY SCHEDULES within operating range (between high and low limits) for the spe- The control has holiday schedules that can be programmed to...
Page 54: Water Coil
Proper water treatment can minimize tube fouling and pitting. If IMPORTANT: Units should never be operated without a filter. such conditions are anticipated, water treatment analysis is recom- mended. Refer to the Carrier System Design Manual, Part 5, for Water Coil general water conditioning information.
Page 55: Checking System Charge
Regulate flow to condenser with a supply line valve. If pump is a should be one of the first areas to start with troubleshooting an non overloading type, the valve may be fully closed while pump is equipment issue. See Fig. 43. running.
Page 56 • Evaporator freeze protection sensor, mounted between the Brownout/Surge/Power Interruption Protection thermal expansion device and the evaporator, monitors re- The brownout protection in the UPM board will shut does the frigerant temperature between the evaporator coil and ther- compressor if the incoming power falls below 18 VAC. The com- mal expansion valve.
Page 57: Freeze Protection Sensors
During this period the fault LED will indicate the cause of the a closed contact at the alarm output until the alarm is cleared. If fault. If the fault condition still exists or occurs 2 or 4 times (de- pulsed (PULSE) is selected the UPM will sequence the alarm con- pending on 2 or 4 setting for LOCKOUT DIP switch) before 60 tact with the fault LED flashes.
Page 58: Thermostatic Expansion Valves
Particulate debris within the system can be caused by several Thermostatic Expansion Valves sources including contaminated components, tubing, and ser- Thermostatic expansion valves (TXV) are used as a means of me- vice tools, or improper techniques used during brazing opera- tering the refrigerant through the evaporator to achieve a preset su- tions and component replacement.
Page 59 • LOW suction pressure, LOW subcooling and HIGH super- CAUTION heat may indicate an undercharge of refrigerant. HIGH subcooling and LOW superheat may indicate an over- Puron refrigerant (R-410A) requires the use of synthetic lu- ® charge of refrigerant. The suction pressure will usually be bricant (POE oil).
Page 60 Hot Gas Line Airflow Condenser Water Coil Equalizer Line*** Distributor Filter Drier** Expansion Valve TXV Sensing Bulb LEGEND Access Point (1/4" Male NPT) High Pressure Switch Solenoid Suct. In Insulated Piping (Extended Range Only) Reversing Low Pressure Switch Valve Test Point for Water Regulating Valve (Optional) Coil Only Present on Scroll Disch.
Page 61 Table 20 — Troubleshooting FAULT COOLING HEATING CHECK POSSIBLE CAUSE SOLUTION High Pressure fault - no or low Check water valves and/or pumps for proper operation. water flow Check for water coil blockage. High Pressure fault - high water Check water temperature - is it in range? temperature High Pressure fault - fouled or Check for proper flow rate and water temperature, but low...
Page 62 Water hammer Fast closing valves installed Change valves to slow-close type. © 2022 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500144-01 Printed in U.S.A.
Page 63: 50Psh,Psv Start-Up Checklist
50PSH,PSV START-UP CHECKLIST (Remove and use for job file. NOTE: To avoid injury to personnel and damage to equipment or property when completing the procedures listed in this start-up checklist, use good judgment, follow safe practices, and adhere to the safety considerations/information as outlined in preceding sections of this Installation, Start-Up, and Service Instructions document.
Page 64 SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE (DEG F) *Use 500 for water, 485 for antifreeze. © 2022 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500144-01 Printed in U.S.A.

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