Table of Contents
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• INSPECTION
• STORAGE
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . 2
• HORIZONTAL UNITS (50PCH)
• VERTICAL UNITS (50PCV)
• INSTALLATION GUIDELINES (ALL UNITS)
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 3
• INSPECT UNIT
Step 3 — Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . 8
• PROTECTION
Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . 8
• DUCT FLANGES
• HORIZONTAL UNITS (50PCH)
• VERTICAL UNITS (50PCV)
Step 5 — Check Duct System . . . . . . . . . . . . . . . . . . 9
• HORIZONTAL SUPPLY AIR CONFIGURATION
CONVERSION
Step 6 — Install Condensate Drain . . . . . . . . . . . . . 10
Step 7 — Pipe Connections . . . . . . . . . . . . . . . . . . . 10
• WATER LOOP APPLICATIONS
• GROUND LOOP APPLICATIONS
• INSTALLING SUPPLY AND RETURN HOSE KIT
• UNITS WITH WATERSIDE ECONOMIZER OR
BOILERLESS HEAT CONTROL
• AQUASTAT BULB INSTALLATION
Step 8 — Wire Field Power Supply . . . . . . . . . . . . . 11
• HIGH VOLTAGE
Step 9 — Wire Control Connections . . . . . . . . . . . . 22
• COMPLETE C AND DELUXE D CONTROL
• THERMOSTAT AND DDC SENSORS
• HOT GAS REHEAT CONTROL
• AUXILIARY RELAY (DELUXE D ONLY)
• ENERGY MANAGEMENT SWITCH (DELUXE D
ONLY)
• BOILERLESS HEAT CONTROL (DELUXE D ONLY)
• ALARM OUTPUT (ALL UNITS)
• WSHP OPEN CONTROL
• CONTROL TRANSFORMER
Step 10 — Configure Unit Control Components . . 23
• UNIT PROTECTION MODULE (UPM)
• WATERSIDE ECONOMIZER
• BOILERLESS HEAT CONTROL (DELUXE D ONLY)
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
• CLEAN AIR COIL
Set Blower Motor Speed . . . . . . . . . . . . . . . . . . . . . . 25
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500266-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Compact Water Source Heat Pumps
with Puron
• PERMANENT SPLIT CAPACITOR (PSC) MOTOR
• CONSTANT TORQUE (ECM) MOTOR
Page
System Flushing and Filling . . . . . . . . . . . . . . . . . . .29
System Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
• FLOW VERIFICATION
• FLOW REGULATION
• ANTIFREEZE
• FREEZE PROTECTION SELECTION
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
• ENVIRONMENT
• POWER SUPPLY
• UNIT STARTING CONDITIONS
Start-Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . .30
• SCROLL COMPRESSOR ROTATION
• COOLING MODE START-UP
• HEATING MODE START-UP
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Unit Protection Module (UPM) . . . . . . . . . . . . . . . . .39
Units with Complete C or Deluxe D Controls . . . . .39
• STANDBY
• COOLING
• HOT GAS REHEAT (OPTIONAL)
• WATERSIDE ECONOMIZER (OPTIONAL)
• TWO WAY WATER FLOW CONTROL VALVE
(OPTIONAL)
• BOILERLESS HEAT (DELUXE D ONLY)
• PUMP/VALVE RELAY (DELUXE D ONLY)
Units with WSHP Open Controls . . . . . . . . . . . . . . .39
• COOLING
• REVERSE CYCLE HEATING
• TWO POSITION OA DAMPER
• MODULATING OA DAMPER WITH DCV
• AUXILIARY MODULATING HOT WATER / STEAM
HEATING REHEAT
• 2-POSITION HOT WATER / STEAM HEATING
REHEAT
• SINGLE STAGE ELECTRIC AUXILIARY HEAT
• AUTOMATIC FAN SPEED CONTROL
• FAN SPEED CONTROL - DURING HEATING
• FAN SPEED CONTROL - DURING COOLING
• MODULATING WATER ECONOMIZER CONTROL
• 2-POSITION WATER ECONOMIZER CONTROL
• POWER FAIL RESTART DELAY
• SUPPLY AIR TEMPERATURE MONITORING /
CONTROL / ALARM
• DEHUMIDIFICATION
• SPACE TEMPERATURE ALARMS
• CONDENSER WATER TEMPERATURE MONITORING
/ CONTROL / ALARM
• HIGH CONDENSATE / OVERFLOW ALARM
• FILTER STATUS ALARM
• COMPRESSOR FAULT/LOCKOUT ALARM
• INSUFFICIENT VENTILATION ALARM
• RELATIVE HUMIDITY ALARM
• TIME SCHEDULES
Form 50PC-6SI
Pg 1
Aquazone™
50PCH, PCV 007-070
®
Refrigerant (R-410A)
1-2020
Replaces: 50PC-5SI
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Table of Contents
Related Manuals for Carrier Aquazone 50PCH007
Summary of Contents for Carrier Aquazone 50PCH007
- Page 1 Aquazone™ 50PCH, PCV 007-070 Compact 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 System Flushing and Filling ....29 SAFETY CONSIDERATIONS .
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Page 2: Safety Considerations
• HOLIDAY SCHEDULES • OVERRIDE SCHEDULES WARNING SERVICE ........43 Filters . -
Page 3: Step 2 - Check Unit
CAUTION CAUTION EQUIPMENT DAMAGE HAZARD EQUIPMENT DAMAGE HAZARD To avoid equipment damage, do not use these units as a source DO NOT store or install units in corrosive environments or in of heating or cooling during the construction process. The me- locations subject to temperature or humidity extremes (e.g., at- chanical components and filters used in these units quickly be- tics, garages, rooftops, etc.). - Page 4 Table 1 — Physical Data — 50PCH,PCV (007-030) Units 50PCH,PCV UNIT CuNi CuNi CuNi CuNi CuNi Cu CuNi Cu CuNi COMPRESSOR (1 each) Rotary Rotary Scroll Maximum Water Working Pressure (psig) 400* PSC FAN MOTOR AND BLOWER Fan Motor Type Fan Motor (hp) Blower Wheel Size (Dia x W) (in.) 4.5 x 4.5...
- Page 5 Table 2 — Physical Data — 50PCH,PCV (036-070) Units 50PCH,PCV UNIT CuNi CuNi CuNi CuNi CuNi CuNi COMPRESSOR (1 each) Scroll Maximum Water Working Pressure (psig) 400* PSC FAN MOTOR AND BLOWER Fan Motor Type Fan Motor (hp) Blower Wheel Size (Dia x W) (in.) 9 x 7 10 x 8 10 x 9...
- Page 6 Return Air Opening Return Air Opening Condensate Drain Condensate Drain Compressor Electrical Access Knock-Outs Left Hand Return End Blow (FLE) Left Hand Return Straight Through (FLS) NOTE: Models 048 and 060 Left Hand Return units have condenser water connections on the front right and electrical knockouts on the front left. Return Air Return Air Opening...
- Page 7 Access Panels Condenser Water Out Condenser Water In Condensate Electrical Drain Connections Left Hand Return Right Hand Return Return Air (Filter) View Blower Blower Access 18" Minimum 24" Optimum Compressor Access and Electrical/Control Access Compressor 24" Minimum 36" Optimum Electrical Control Front of Unit Service Clearances...
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Page 8: Step 3 - Locate Unit
Step 3 — Locate Unit Locate the unit in an indoor area that allows easy removal of the filter and access panels, and has enough room for service person- nel to perform maintenance or repair. Provide sufficient room to make fluid, electrical, and duct connection(s). If the unit is located in a confined space such as a closet, provisions must be made for return air to freely enter the space. -
Page 9: Step 5 - Check Duct System
Install rubber grommet on the bracket as shown in Fig. 6. All major service access for the vertical models is from the front side of the unit. When installing the unit in a confined space such Hang the unit and assemble the field-provided threaded rod, as a closet, ensure that the service panel screws are accesible, nuts, and washers on the brackets as shown in Fig. -
Page 10: Step 6 - Install Condensate Drain
Insert the blower panel with the blower and motor into the loop. Refer to Piping Section of Carrier System Design Manual desired location. Be careful not to damage the refrigerant for additional information. -
Page 11: High Voltage
Optional pressure-rated hose assemblies designed specifically net to the building. for use with Carrier units are available. Similar hoses can be ob- For heat pumps with unit mounted disconnect switches, field pow- tained from alternate suppliers. Supply and return hoses are fit-... - Page 12 Fig. 11 — PSC Motor, Single Phase/Single Stage, Complete C Control...
- Page 13 Fig. 12 — PSC Motor, Single Phase/Single Stage, Deluxe D Control...
- Page 14 Fig. 13 — Constant Torque Motor, Single Phase/Single Stage, Complete C Control...
- Page 15 Fig. 14 — Constant Torque Motor, Single Phase/Single Stage, Deluxe D Control...
- Page 16 Fig. 15 — PSC Motor, Three Phase/Single Stage, Complete C Control...
- Page 17 Fig. 16 — Constant Torque Motor, Three Phase/Single Stage, Complete C Control...
- Page 18 Fig. 17 — Constant Torque Motor, Three Phase/Single Stage, WSHP Open...
- Page 19 UNIT TERMINAL BLOCK (TB1) CLASS II VOLTAGE OPTIONAL WIRING STANDARD COMPONENTS: DATS - DISCHARGE AIR TEMP SENSOR LWTS - LEAVING WATER TEMP SENSOR J1-9 USED TO CONNECT FIRE ALARM RELAY OR PHASE MONITOR OPTIONS FACTORY JUMPER IS INSTALLED ON J5-5 AND J5-6 IF CONDENSATE FLOAT SWITCH (NC) IS NOT PRESENT FOR 2-STAGE UNITS, CONNECT CMR CONN ACROSS PINS 4 AND 6 OF CMR1 WITH SIGNAL CMR-4 GOING TO PIN 4 AND SIGNAL CMR-2 GOING TO PIN 6.
- Page 20 Table 4 — 50PC Electrical Data with PSC Blower Motor RATED COMPRESSOR BLOWER MOTOR 50PC VOLTAGE VOLTAGE CIRCUIT FUSE/ UNIT MIN/MAX V-PH-HZ HACR 208-230/1/60 197/253 17.7 0.96 0.10 50PC007 265/1/60 238/292 13.5 0.85 0.10 208-230/1/60 197/253 22.2 0.96 0.10 50PC009 265/1/60 238/292 18.8...
- Page 21 Table 5 — 50PC Electrical Data with Constant Torque ECM Blower Motor RATED COMPRESSOR BLOWER MOTOR 50PC VOLTAGE VOLTAGE VOLTAGE CIRCUIT FUSE/ UNIT CODE MIN/MAX V-PH-HZ HACR 208-230/1/60 197/253 29.0 0.33 50PC015 265/1/60 238/292 20.0 0.33 208-230/1/60 197/253 33.0 0.33 10.2 12.1 50PC018...
- Page 22 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 3rd party temperature sensors.
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Page 23: Unit Protection Module (Upm)
Step 10 — Configure Unit Control Components WARNING To avoid possible injury or death due to electrical shock, open the power supply disconnect switch and secure it in an open position during installation. UNIT PROTECTION MODULE (UPM) All units with Complete C, Deluxe D, or WSHP Open are factory provided with a unit protection module (UPM) controls the com- pressor and has built safeties. -
Page 24: Waterside Economizer
UPM Dip Switch Settings BOILERLESS HEAT CONTROL (DELUXE D ONLY) The DIP switches are used to configure most of the available fea- All units with Deluxe D control include an aquastat for boilerless tures of the UPM as follows: heat control. The aquastat can be adjusted between 20°F and 60°F. When the water loop temperature is below the aquastat set point, •... - Page 25 14. Verify that the unit has proper service clearance. Be certain If the motor is a 460 V motor and the speed is changed from that all access panels are secured in place. high to medium or low, connect the high speed motor lead to the orange intermediate winding lead instead of simply cap- 15.
- Page 26 Table 8 — PSC Motor Selection UNIT SIZE MOTOR HP TAP 1 TAP 2 TAP 3 HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH NOTE: Bold type indicates factory default motor setting. Table 9 — Constant Torque ECM Selection UNIT SIZE MOTOR HP TAP 1...
- Page 27 Table 10 — 50PCH,PCV (007-070) PSC Blower Performance AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg) 50PC RATED UNIT SPEED AIRFLOW 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 — — — — — — — —...
- Page 28 Table 11 — 50PCH,PCV (015-070) Constant Torque ECM Motor Blower Performance AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg) 50PCH, RATED TAP # AIRFLOW 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 — — — — —...
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Page 29: Flow Verification
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 30: Power Supply
ANTIFREEZE NOTE: Two factors determine the operating limits of a unit: enter- ing-air temperature and water temperature. Whenever any of these In areas where entering loop temperatures drop below 40°F or factors are at a minimum or maximum level, the other two factors where piping will be routed through areas subject to freezing, anti- must be at a normal level to ensure proper unit operation. -
Page 31: Scroll Compressor Rotation
SCROLL COMPRESSOR ROTATION exchanger using P/T plugs. Check the elevation and cleanli- ness of the condensate lines; any dripping could be a sign of a It is important to be certain compressor is rotating in the proper di- blocked line. Be sure the condensate trap includes a water rection. - Page 32 Table 16 — 50PC007 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER Suction Discharge Water Air Temp Suction Discharge Water WATER FLOW Air Temp. Pressure Pressure Temp Drop Pressure Pressure Temp. TEMP (°F) (GPM/TON) Drop (°F) (PSIG) (PSIG) Rise (°F) (°F) DB (PSIG)
- Page 33 Table 18 — 50PC012 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER Suction Discharge Water Air Temp Suction Discharge Water WATER FLOW Air Temp. Pressure Pressure Temp Drop Pressure Pressure Temp. TEMP (°F) (GPM/TON) Drop (°F) (PSIG) (PSIG) Rise (°F) (°F) DB (PSIG)
- Page 34 Table 20 — 50PC018 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER Suction Discharge Water Air Temp Suction Discharge Water WATER FLOW Air Temp. Pressure Pressure Temp Drop Pressure Pressure Temp. TEMP (°F) (GPM/TON) Drop (°F) (PSIG) (PSIG) Rise (°F) (°F) DB (PSIG)
- Page 35 Table 22 — 50PC030 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER Suction Discharge Water Air Temp Suction Discharge Water WATER FLOW Air Temp. Pressure Pressure Temp Drop Pressure Pressure Temp. TEMP (°F) (GPM/TON) Drop (°F) (PSIG) (PSIG) Rise (°F) (°F) DB (PSIG)
- Page 36 Table 24 — 50PC041 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER Suction Discharge Water Air Temp Suction Discharge Water WATER FLOW Air Temp. Pressure Pressure Temp Drop Pressure Pressure Temp. TEMP (°F) (GPM/TON) Drop (°F) (PSIG) (PSIG) Rise (°F) (°F) DB (PSIG)
- Page 37 Table 26 — 50PC048 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER Suction Discharge Water Air Temp Suction Discharge Water WATER FLOW Air Temp. Pressure Pressure Temp Drop Pressure Pressure Temp. TEMP (°F) (GPM/TON) Drop (°F) (PSIG) (PSIG) Rise (°F) (°F) DB (PSIG)
- Page 38 Table 28 — 50PC070 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER Suction Discharge Water Air Temp Suction Discharge Water WATER FLOW Air Temp. Pressure Pressure Temp Drop Pressure Pressure Temp. TEMP (°F) (GPM/TON) Drop (°F) (PSIG) (PSIG) Rise (°F) (°F) DB (PSIG)
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Page 39: Operation
PUMP/VALVE RELAY (DELUXE D ONLY) OPERATION The pump/valve relay is enabled anytime there is a call for cooling Power Up Mode (Y), heating (Y), or dehumidification (H) and can be used to en- The unit will not operate until all the inputs, terminals and safety able/disable field installed flow control valves or circulator controls are checked for normal operation. - Page 40 START RESET ON R RESET ON Y1 = ON R = 24VAC POWER/ SWITCHES/SENSOR CLEAR FAULTS STATUS CHECK BLINK CODE ON STATUS LED SOFT LOCKOUT COUNTER V > 18VAC RECORD ALARM NEEDED? START COUNTER (IF APPLICABLE) CNT = CNT+1 HPC = CLOSED LOCKOUT CAN BE SET COUNT = 2...
- Page 41 Fig. 25 — WSHP Open Control Board AUXILIARY MODULATING HOT WATER / STEAM 2-POSITION HOT WATER / STEAM HEATING REHEAT HEATING REHEAT The control can operate a two position, NO or NC, hot water or steam valve connected to a coil on the discharge side of the unit The control can modulate a hot water or steam valve connected to and supplied by a boiler in order to maintain the desired heating a coil on the discharge side of the unit and supplied by a boiler in...
- Page 42 SINGLE STAGE ELECTRIC AUXILIARY HEAT Maximum Heating SAT limit, the economizer valve will modulate closed during compressor operation. The control can operate a single stage of electric heat connected to a coil on the discharge side of the unit in order to maintain the de- 2-POSITION WATER ECONOMIZER CONTROL sired heating setpoint should the compressor capacity be insuffi- The control has the capability to open a NO or NC, two position,...
- Page 43 are provided. The control provides a 5 minute alarm delay provides a 5 minute alarm delay during unoccupied periods. during unoccupied periods. During occupied periods, the control During occupied periods, the controller uses the occupied high RH uses the occupied temperature setpoint and applies the hysteresis alarm limit Whenever an occupancy transition from unoccupied to value to determine the alarm setpoints.
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Page 44: Gravity Flow Method
In a single family home, that is mended. Refer to the Carrier System Design Manual, Part 5, for not under construction, changing or cleaning the filter every 60 general water conditioning information. -
Page 45: Troubleshooting
Disconnect motor power wires from motor terminals before motor is removed from unit. GAS VENT PUMP PRIMING CONN. Shut off unit main power supply and apply lock-out/tag-out. GLOBE VALVES Loosen bolts on mounting bracket so that fan belt can be SUCTION removed. - Page 46 Safety controls include the following: The UPM board includes the following features: • High-pressure switch located in the refrigerant discharge Anti-short Cycle Timer line and wired across the HPC terminals on the UPM. A 5-minute delay on break timer prevents compressor short cy- •...
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Page 47: Control Sensors
Freeze Sensor UPM Sequence of Operations The default setting for the freeze limit trip is 30°F (sensor number Figure 24 shows the UPM sequence of operations. 1); however this can be changed to 15°F by cutting the R30 resis- Thermistor tor located on top of the DIP switch SW1. - Page 48 SUCTION COIL AIRFLOW AIRFLOW (°F) (°F) COMPRESSOR THERMISTOR EXPANSION COAX DISCHARGE VALVE CONDENSATE OVERFLOW LIQUID (CO) LINE WATER IN WATER OUT AIR COIL WATER FREEZE LEGEND COIL PROTECTION PROTECTION COAX — Coaxial Heat Exchanger Airflow Refrigerant Liquid Line Flow Fig. 31 — FP1 and FP2 Thermistor Location Noncondensables may be present in the system.
- Page 49 To determine that a TXV has failed, verify the following: CAUTION • The suction pressure is low and the valve is non-responsive. Always recover the refrigerant from the system with suitable • The TXV sensing bulb can be removed from the suction approved tools, recovery equipment, and practices prior to at- line and warmed by holding the bulb in your hand.
- Page 50 Table 30 — Troubleshooting FAULT COOLING HEATING CHECK POSSIBLE CAUSE SOLUTION High Pressure fault - no or low Check water valves and/or pumps for proper water flow operation. Check for water coil blockage. High Pressure fault - high Check water temperature - is it in range? water temperature Is fault LED High Pressure fault - fouled or...
- Page 51 Table 30 — Troubleshooting (cont) FAULT COOLING HEATING CHECK POSSIBLE CAUSE SOLUTION Bad thermostat Check thermostat and wiring. Check unit terminal Power LED on connection / faulty block for 24 VAC between "Y" and "C" and "G" and thermostat "C". Ensure that the supply voltage to the unit is with in the Low or no supply power No compressor...
- Page 52 Table 30 — Troubleshooting (cont) FAULT COOLING HEATING CHECK POSSIBLE CAUSE SOLUTION Ensure ductwork and grilles are properly sized for unit Poor ductwork/grille design airflow. Air noise Consult blower performance table and reduce fan Fan speed setting too high speed if possible. Unit not mounted on full Mount unit on a vibration pad.
- Page 56 8-733-954-886 © 2020 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500266-01 Printed in U.S.A. Form 50PC-6SI Pg 56 1-2020 Replaces: 50PC-5SI...
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Page 57: 50Pch,Pcv Start-Up Checklist
50PCH,PCV 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 sec- tions of this Installation Instruction document. - Page 58 TEMPERATURES FILL IN THE ANALYSIS CHART ATTACHED. COAXIAL HEAT COOLING CYCLE: EXCHANGER FLUID IN FLUID OUT FLOW HEATING CYCLE: FLUID IN FLUID OUT FLOW AIR COIL COOLING CYCLE: AIR IN AIR OUT HEATING CYCLE: AIR IN AIR OUT HEATING CYCLE ANALYSIS SUCTION COIL COMPRESSOR...
- Page 59 HEAT OF EXTRACTION (ABSORPTION) OR HEAT OF REJECTION = FLOW RATE (GPM) x TEMP. DIFF. (DEG. F) x FLUID FACTOR* = (Btu/hr) SUPERHEAT = SUCTION TEMPERATURE – SUCTION SATURATION TEMPERATURE (DEG F) SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE (DEG F) *Use 500 for water, 485 for antifreeze.
- Page 60 8-733-954-886 © 2020 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500266-01 Printed in U.S.A. Form 50PC-6SI Pg CL-4 1-2020 Replaces: 50PC-5SI...