Carrier AQUAZONE 50PTH Installation And Service Instructions Manual
  1. Manuals
  2. Brands
  3. Carrier Manuals
  4. Heat Pump
  5. AQUAZONE 50PTH
  6. Installation and service instructions manual
Carrier AQUAZONE 50PTH Installation And Service Instructions Manual

Carrier AQUAZONE 50PTH Installation And Service Instructions Manual

Two-stage water source heat pumps with puron refrigerant (r-410a)
Hide thumbs Also See for AQUAZONE 50PTH:
Table of Contents

Advertisement

Quick Links

Installation, Start-Up, and Service Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 - Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
• PROTECTION
• INSPECT UNIT
Step 3 - Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
• FIELD CONVERSION OF DISCHARGE AIR
Step 4 - Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 9
Step 5 - Check Duct System . . . . . . . . . . . . . . . . . . . . 9
• SOUND ATTENUATION
• EXISTING DUCT SYSTEM
Step 6 - Install Condensate Drain . . . . . . . . . . . . . . . 9
• HORIZONTAL UNIT
• VERTICAL UNITS
• VENTING
Step 7 - Pipe Connections . . . . . . . . . . . . . . . . . . . . . 10
• WATER LOOP APPLICATIONS
• GROUND-WATER APPLICATIONS
• GROUND-LOOP APPLICATIONS
KIT
Step 8 - Wire Field Power Supply . . . . . . . . . . . . . . 12
• POWER CONNECTION
• SUPPLY VOLTAGE
• 208-VOLT OPERATION
• 460-VOLT OPERATION
• WSHP OPEN WIRING
Step 9 - Wire Field Controls. . . . . . . . . . . . . . . . . . . . 25
• WATER FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• STANDALONE - NO DDC CONTROLS
• WSHP OPEN CONTROLS
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29,30
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
FIELD SELECTABLE INPUTS. . . . . . . . . . . . . . . . . 30-33
Complete C Control Jumper Settings. . . . . . . . . . . . 30
Deluxe D Control Jumper Settings . . . . . . . . . . . . . . 30
Complete C Control DIP Switches . . . . . . . . . . . . . . . 30
Deluxe D Control DIP Switches. . . . . . . . . . . . . . . . . . 30
Units with Modulating Hot Water Reheat
(HWR) Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
• STANDALONE - NO DDC CONTROLS
• WSHP OPEN CONTROLS
• HWR APPLICATION CONSIDERATIONS
• HWR COMPONENT FUNCTIONS
Deluxe D Control Accessory
Relay Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 32
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500079-01
Two-Stage Water Source Heat Pumps
with PURON
Page
Printed in U.S.A.
Form 50PT-4SI
50PTH, PTV, PTD026-072
®
Refrigerant (R-410A)
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-38
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 34
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 34
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 34
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 38
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 38
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-42
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42,43
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
WSHP Open Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 43
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44,45
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 44
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Fan Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 44
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 45
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 45
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 45-53
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Control Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
WSHP Open Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Thermostatic Expansion Valves . . . . . . . . . . . . . . . . . . 46
Stopped or Malfunctioned ECM Motor . . . . . . . . . . . . 50
Moisture Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 54-59
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
Pg 1
AQUAZONE™
Page
7-10
Replaces: 50PT-3SI

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the AQUAZONE 50PTH and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Carrier AQUAZONE 50PTH

Summary of Contents for Carrier AQUAZONE 50PTH

  • Page 1: Table Of Contents

    Installation, Start-Up, and Service Instructions CONTENTS SAFETY CONSIDERATIONS .....1,2 GENERAL ........2 INSTALLATION .

  • Page 2: General

    • 50PTV unit with vertical airflow and top discharge • 50PTD unit with vertical airflow and bottom discharge (downflow) IMPORTANT: The installation of water source heat pump units and all associated components, parts, and accessories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes.
  • Page 3 8. Provide an unobstructed path to the unit within the closet or mechanical room. Space should be sufficient to allow removal of unit if necessary. 9. Provide ready access to water valves and fittings, and screwdriver access to unit side panels, discharge collar, and all electrical connections.
  • Page 4 2 Service Access Front 2 Service Access Left Return Right Discharge Back Discharge Blower Outlet Y Configuration - Left Return/Back Discharge Right View W Configuration - Left Return/Right Discharge - Air Coil Opening W Configuration - Left Return/Right Discharge - Air Coil Opening OVERALL CABINET WATER CONNECTIONS (in.) (in.)
  • 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) Aux Electric Heat Disconnect 3/8” Threaded Rod (by others) Vibration Isolator (white-compressor end and red-blower end) Washer...
  • Page 6 Air Coil Side K - Configuration - Right Return /Top Discharge (Top View) Air Coil Back Back Front K - Configuration - Right Return - Air Coil Opening (Right Side View) OVERALL CABINET WATER CONNECTIONS (in.) (in.) 50PTV UNIT Width Depth Height 22.4...
  • Page 7 OVERALL CABINET WATER CONNECTIONS (in.) (in.) 50PTD UNIT Width Depth Height 22.4 25.6 52.5 2.1 10.0 13.9 16.9 25.4 30.6 54.5 3.4 10.8 15.6 18.9 25.4 30.6 58.5 3.4 10.8 15.6 18.9 064,072 25.4 30.6 62.5 3.4 10.8 15.6 18.9 NOTES: 1.

  • Page 8: Step 3 - Locate Unit

    Supply Air Flexible Connection Water Return Water Stainless steel braid hose with integral “J” swivel (field-installed accessory) Power Thermostat Wiring Compressor Access Panel accessory) NOTE: Ball valve with integral pressure temperature plug recommended. Fig. 5 — Typical Vertical Installation — 50PTV Unit Building Flexible Loop...

  • Page 9: Step 4 - Mount The Unit

    5. Check refrigerant tubing for contact with other compo- nents. Adjust if necessary. 6. Reinstall top panel using screws set aside in Step 1. NOTE: Location for some screws at bottom of discharge panel may have to be changed. 7. Manually spin fan wheel to check for obstructions. Adjust for any obstruction found.

  • Page 10: Step 7 - Pipe Connections

    1/4” Pitch for Drainage 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 thread fittings for water connections to prevent annealing and out-of-round leak problems which are typically associated with high temperature brazed connections.

  • Page 11: Installation Of Supply And Return Hose

    Tighten steel fittings as necessary. Optional pressure-rated hose assemblies designed specifi- cally for use with Carrier units are available. Similar hoses can be obtained from alternate suppliers. Supply and return hoses are fitted with swivel-joint fittings at one end to prevent kink- ing during installation.

  • Page 12: Step 8 - Wire Field Power Supply

    CONDITION MATERIAL* 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 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.
  • Page 13 conform to the Class II temperature limitations described in the NEC. Refer to unit wiring diagrams Fig. 15-24 for a schematic of the field connections, which must be made by the installing (or electrical) contractor. For Deluxe D with WSHP Open controls 3-phase units and Complete C with Open controls single-phase and 3-phase units contact Application Engineering.
  • Page 20 a50-8363...
  • Page 21 a50-8364...
  • Page 22 a50-8570...
  • Page 23 a50-8571 LED1 GREEN Rnet+ WHITE Rnet- BLACK +12V To WSHP Controller Rnet Terminals (J13)
  • Page 24 NOTE: If the Rnetbus has multiple SPT Standard sensors, each sensor must be given a unique address on the Rnetbus. See the Carrier Open Sensor Installation Guide. Use the specified type of wire and cable for maximum signal integrity. See Table 7.

  • Page 25: Step 9 - Wire Field Controls

    To wire the SPT sensor to the controller: 1. Partially cut , then bend and pull off the outer jacket of the Rnet cable(s), being careful not to nick the inner insulation. 2. Strip about in. of the inner insulation from each wire. See Fig.
  • Page 26 COMPRESSOR CONTACTOR a50-8141 TRANSFORMER AQUAZONE CONTROL (Complete C Shown) Fig. 28 — Typical Aquazone™ Control Board Jumper Locations TERMINAL STRIP P2 TYPICAL WATER 24 VAC VALVE Fig. 29 — Typical Accessory Wiring CAPACITOR COMPLETE C CONTROL THERMOSTAT CONNECTION Fig. 27 — Low Voltage Field Wiring a50-7764tf Fig.

  • Page 27: Step 10 - Operate Ecm Interface Board

    Step 10 — Operate ECM Interface Board STANDALONE — NO DDC CONTROLS — The ECM fan is controlled by an interface board that converts thermostat inputs and field selectable cfm settings to signals used by the ECM (electronically commutated motor) controller. See Fig.
  • Page 28 50PT MAX ESP MOTOR UNIT SIZE (in. wg) SETTING (hp) 0.50 0.50 0.75 0.75 0.75 WSHP OPEN CONTROLS — The ECM fan is controlled by an interface board that converts the fan speed outputs from the WSHP Open control board to the signal used by the ECM mo- tor (see Fig 35).

  • Page 29: Installation

    Table 14A — WSHP Open — Fan Only / Low Fan and Med Fan Airflow 50PT UNIT FAN MOTOR TAP SETTING SIZE 0.75 0.75 0.75 NOTE: Factory default setting shown bold. Table 14B — WSHP Open — High Fan Airflow 50PT UNIT SIZE MAX ESP FAN MOTOR HP 0.75...

  • Page 30: Field Selectable Inputs

    2, W1 is used for heating stage 1 and O/W2 is used for heating stage 2. Select ON for heat pump thermostats. In heat pump mode, Y1 used is for compressor stage 1, Y2 is used for compressor stage 2, W1 is used for heating stage 3 or emergency heat, and O/W2 is used for reversing valve (heating or cooling) depending upon switch 4 setting.

  • Page 31: (Hwr) Option

    Almost any thermostat will activate the heat pump in heating or cooling modes. The Deluxe D microprocessor board, which is standard with the HWR option, will accept either heat pump (Y,O) thermostats or non-heat pump (Y,W) thermostats. The reheat mode requires either a separate humidistat/ dehumidistat or a thermostat that has an integrated dehumidifi- cation function for activation.

  • Page 32: Relay Configurations

    ground loop systems will not experience overcooling of the supply-air temperature. If overcooling of the space is a con- cern (e.g., computer room well water application), auxiliary heating may be required to maintain space temperature when the unit is operating in the dehumidification mode. Water source heat pumps with HWR should not be used as makeup air units.

  • Page 33: Start-Up

    3. Balance airflow at registers. 4. Adjust all valves to the full open position and turn on the line power to all heat pump units. 5. Operate unit in the cooling cycle first, then the heating cycle. Refer to Table 18 for unit operating limits. Al- low 15 minutes between cooling and heating tests for pressure to equalize.

  • Page 34: 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 35 Table 21 — Typical 50PTH,PTV,PTD038 Unit Operating Pressures and Temperatures FULL LOAD COOLING WITHOUT HWG ACTIVE ENTERING WATER WATER Suction Discharge FLOW TEMP (F) Pressure Pressure (Gpm/Ton) (EWT) (psig) (psig) 120-130 156-176 2.25 119-129 148-168 119-129 138-158 129-139 225-245 2.25 128-138 211-231 128-138...

  • Page 36: Unit Start-Up With Wshp Open Controls

    BAS (Building Automation System) system or provide additional capabilities to Carrier's WSHP product line. Most settings on the controller have factory defaults set for ease of installation. There are a few settings that must be configured in the field and several settings that can be adjusted if required by unique job condi- tions.

  • Page 37: Flow Regulation

    f. Press OK to apply and save to a particular day of the week. g. Continue to add the same or different schedule spe- cific days of the week. To add exceptions to the schedule: i. Press Add softkey. ii. Select exception type from following: •...

  • Page 38: Cooling Tower/Boiler Systems

    Cooling Tower/Boiler Systems — typically use a common loop temperature maintained at 60 to 95 F. 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 39: Power Up Mode

    The WSHP Open controller has its own hardware clock that is automatically set when the heat pump software is downloaded to the board. Oc- cupancy types are described in the scheduling section below. The following sections describe the functionality of the WSHP Open multi-protocol controller.
  • Page 40 ured maximum heating SAT limit (110 F default). As the SAT approaches this value, the control will increase the fan speed as required to ensure the SAT will remain within the limit. This feature provides the most quiet and efficient operation by oper- ating the fan at the lowest speed possible.
  • Page 41 Auxiliary Modulating Hot Water/Steam Heating Reheat — The control can modulate a hot water or steam valve con- nected to a coil on the discharge side of the unit and supplied by a boiler in order to maintain the desired heating set point should the compressor capacity be insufficient or a compressor failure occurs.

  • Page 42: Operation

    vide cooling to the space when required. Should the capacity be insufficient for a period greater than 5 minutes, or should a high humidity condition occur, then the compressor will be started to satisfy the load. Should the SAT reach the minimum cooling SAT limit, the economizer valve will close during compressor operation.

  • Page 43: Wshp Open Test Mode

    To enter WSHP Open test WSHP Open Test Mode — mode, navigate from the BACview home screen to the config- uration screen. Choose the service screen and enable unit test. The controller will then test the following: FAN TEST — Tests all fan speeds, sequences fan from low to high, and operates each speed for one minute.

  • Page 44: Service

    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. CAUTION Follow all safety codes.

  • Page 45: Checking System Charge

    FILL CONDENSER WITH CLEANING SOLUTION. DO NOT ADD SOLUTION MORE RAPIDLY THAN VENT CAN EXHAUST GASES CAUSED BY FUNNEL CHEMICAL ACTION. 1” PIPE VENT PIPE 5’ APPROX 3’ TO 4’ PAIL Fig. 35 — Gravity Flow Method GAS VENT PUMP PRIMING CONN.

  • Page 46: Wshp Open Controller

    The sensing bulb must be located on a dedicated suction line close to the compressor. On a pack- aged heat pump, the bulb may be located almost any place on the tube running from the compressor suction inlet to the reversing valve.
  • Page 47 The bulb must be secured to the pipe using a copper strap. The use of heat transfer paste between the bulb and the pipe will also help ensure optimum performance. The bulb must also be properly insulated to eliminate any influence on valve operation by the surrounding conditions.
  • Page 48 CAUTION ® Puron refrigerant (R-410A) requires the use of synthetic lubricant (POE oil). Do not use common tools on systems that contain R-22 refrigerants or mineral oil. Contamina- tion and failure of this equipment may result. IMPORTANT: Due to the hygroscopic nature of the POE oil in Puron refrigerant (R-410A) and other envi- ronmentally sound refrigerants, any component replace- ment must be conducted in a timely manner using...
  • Page 49 a50-8448 Fig. 39 — ECM Pin Connectors...

  • Page 50: Stopped Or Malfunctioned Ecm Motor

    Refer Stopped or Malfunctioned ECM Motor — to Fig. 40 to determine the possible cause of a stopped or mal- functioned ECM motor. Follow the instructions in the boxes. a50-8447 Fig. 40 — ECM Troubleshooting Flow Diagram...

  • Page 51: Moisture Check

    To perform moisture check: Moisture Check — • Check that connectors are orientated “down” (or as recom- mended by equipment manufacturer). • Arrange harnesses with “drip loop” under motor. Check motor, controls wiring, and connections thoroughly before replac- ing motor. Orient connectors down so water cannot get in.
  • Page 52 Compressor overload Check compressor overload. Replace if necessary. Thermostat wiring Check Y and W wiring at heat pump. Jumper Y and R for compressor operation in Test mode. Thermostat wiring Check G wiring at heat pump. Jumper G and R for fan operation.

  • Page 53: Troubleshooting

    See “Insufficient Capacity.” Too high airflow Check blower performance per Tables 9-13 Unit oversized Recheck loads and sizing check sensible cooling load and heat pump capacity. Normal operation Check/compare with unit Installation Manual for typical operating temper- atures and pressures chart.

  • Page 54: Appendix A - Wshp Open Screen Configuration

    APPENDIX A — WSHP OPEN SCREEN CONFIGURATION SCREEN NAME POINT NAME Operating Mode Condenser Leaving Temperature Condenser Entering Temperature Equipment Compressor Capacity Status Damper Position O Economizer Auxiliary Heat Space RH Dehumidification IAQ CO SPT Alarm Status Alarming SPT SPT Alarm Limit SPT Sensor Alarm Status IAQ Alarm Status...
  • Page 55 APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont) PASSWORD SCREEN NAME POINT NAME Operating Mode Fan Operating Mode Occupancy Status Occupancy Control Outside Air Temperature SPT Status SPT Sensor Status Condensate Overflow Cooling Set Point Heating Set Point Unit No Password Maintenance required Set Point Adjustment...
  • Page 56 APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont) PASSWORD SCREEN NAME POINT NAME Occupied Heating Occupied Cooling Unoccupied Heating Unoccupied Cooling Effective Heating Set Point Effective Cooling Set Point Optimal Start Configuration User/Admin Occupied RH Password level Set Point Set Points Unoccupied RH Set Point DCV CTRL Start...
  • Page 57 APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) PASSWORD SCREEN NAME POINT NAME Fan Mode Fan On Delay Fan Off Delay Heating Enable Cooling Enable Minimum SAT in Cooling Configuration Maximum SAT in Heating Admin Password level access only Damper Ventilation Position Unit Configuration...
  • Page 58 APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) SCREEN NAME POINT NAME # of Fan Speeds G Output Type Compressor Stages Reversing Valve Type Leaving Air Auxiliary Heat Type Entering Air Water Economizer Type 2-Position Water Valve Type Modulating Water Valve Type Ventilation Damper Type...

  • Page 59: Configuration

    APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) SCREEN NAME POINT NAME SPT Occupied Alarm Hysteresis SPT Alarm Delay SPT Unoccupied Low Alarm Temperature SPT Unoccupied High Alarm Temperature SAT Low SAT Alarm Limit SAT High SAT Alarm Limit Condensate Overflow Alarm Delay Space Humidity Occupied High Alarm Limit...
  • Page 62 Copyright 2010 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500079-01 Printed in U.S.A. Form 50PT-4SI Pg 62 7-10 Replaces: 50PT-3SI...

  • Page 63: 50Pth,Ptv,Ptd Start-Up

    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 64 SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE (DEG F) *Use 500 for water, 485 for antifreeze. Copyright 2010 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500079-01 Printed in U.S.A.

This manual is also suitable for:

Aquazone ptvAquazone ptd026-072Aquazone 50pth026Aquazone 50pth038Aquazone 50pth049Aquazone 50pth064 ... Show all

Table of Contents

Save PDF