Carrier AQUAZONE 50RTP03-20 Installation And Service Instructions Manual
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Carrier AQUAZONE 50RTP03-20 Installation And Service Instructions Manual

Carrier AQUAZONE 50RTP03-20 Installation And Service Instructions Manual

Rooftop water source heat pumps with puron refrigerant (r-410a)
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 - Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
• PROTECTION
• INSPECT UNIT
Step 3 - Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 4 - Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 5 - Install Condensate Drain . . . . . . . . . . . . . . . 8
Step 6 - Make Piping Connections . . . . . . . . . . . . . . 8
Step 7 - Connect Electrical Wiring . . . . . . . . . . . . . . 9
• 208-VOLT OPERATION
• BLOWER SELECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .35,36
Complete C Control Jumper Settings. . . . . . . . . . . 35
Complete C Control DIP Switches. . . . . . . . . . . . . . 35
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 35
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 35
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 36
Outside-Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 36
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-40
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 37
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 37
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 37
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
System Claening and Flushing . . . . . . . . . . . . . . . . . . 39
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 40
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 40
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-43
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500070-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Rooftop Water Source Heat Pumps
with PURON
Page
Units with WSHP Open Protocol . . . . . . . . . . . . . . . . 40
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-45
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
WSHP Open Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 45
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45,46
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 45
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 45
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 46
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 46
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 47-49
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 50-55
START-UP 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 compo-
nents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func-
tions of cleaning coils and filters and replacing filters. All other
operations should be performed by trained service personnel.
When working on air-conditioning equipment, observe precau-
tions 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.
Form 50RTP-1SI
AQUAZONE™
50RTP03-20
®
Refrigerant (R-410A)
Pg 1
7-10
Page
Replaces: New

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Summary of Contents for Carrier AQUAZONE 50RTP03-20

  • Page 1: Table Of Contents

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

  • Page 2: General

    Rooftop water source heat pumps (WSHP) are single-pack- age outdoor units with electronic controls designed for year- round cooling and heating. 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: Step 3 - Locate Unit

    CAUTION DO NOT store or install units in corrosive environments or in locations subject to temperature or humidity extremes (e.g., attics, garages, rooftops, etc.). Corrosive conditions and high temperature or humidity can significantly reduce performance, reliability, and service life. Always move units in an upright position.
  • Page 4 A50-8267.eps...
  • Page 5 A50-8268.eps...
  • Page 6 A50-8269.eps...

  • Page 8: Ground-Water Applications

    3 types of WSHP piping sys- tems to choose from: water loop, ground-water and ground loop. Refer to Piping Section of Carrier System Design Manual for additional information. All WSHP units use low temperature soldered female pipe...

  • Page 9: Step 7 - Connect Electrical Wiring

    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 10 Example: Supply voltage is 460-3-60. AB = 452 volts BC = 464 volts AC = 455 volts Average Voltage = = 457 Determine maximum deviation from average voltage: (AB) 457 – 452 = 5 v (BC) 464 – 457 = 7 v (AC) 457 –...
  • Page 11 50RTP VOLTAGE VOLTAGE UNIT SIZE CODE (V-Ph-Hz) 208-3-60 460-3-60 575-3-60 208-3-60 460-3-60 575-3-60 LEGEND — Full Load Amps HACR — Heating, Air Conditioning, and Refrigeration — Locked Rotor Amps MCA — Minimum Circuit Amps — Rated Load Amps Table 4 — 50RTP03 Blower Performance Data AIRFLOW (cfm) 0.10...
  • Page 12 Table 5 — 50RTP04 Blower Performance Data AIRFLOW (cfm) 0.27 0.31 0.34 Sheave/Motor 1200 Turns Open 0.35 0.38 0.41 Sheave/Motor 1300 Turns Open 0.43 0.46 0.49 Sheave/Motor 1400 Turns Open 0.49 0.52 0.54 Sheave/Motor 1500 Turns Open 0.62 0.65 0.67 Sheave/Motor 1600 1015...
  • Page 13 Table 6 — 50RTP05 Blower Performance Data AIRFLOW (cfm) 0.17 0.22 0.26 Sheave/Motor 1500 Turns Open 0.20 0.24 0.28 Sheave/Motor 1600 Turns Open 0.23 0.26 0.30 Sheave/Motor 1700 Turns Open 0.25 0.29 0.33 Sheave/Motor 1800 Turns Open 0.29 0.32 0.37 Sheave/Motor 1900 Turns Open...
  • Page 14 Table 7 — 50RTP06 Blower Performance Data AIRFLOW (cfm) 0.27 0.31 0.35 Sheave/Motor 1800 Turns Open 0.29 0.33 0.37 Sheave/Motor 1900 Turns Open 0.32 0.36 0.41 Sheave/Motor 2000 Turns Open 0.39 0.44 0.47 Sheave/Motor 2100 Turns Open 0.42 0.47 0.52 Sheave/Motor 2200 Turns Open...
  • Page 15 Table 8 — 50RTP08 Blower Performance Data AIRFLOW (cfm) 0.36 0.39 0.42 0.46 0.52 Sheave/Motor 2400 Turns Open 0.40 0.45 0.50 0.56 0.62 0.67 0.72 0.76 0.80 0.85 0.90 0.97 1.05 1.12 1.18 1.22 1.26 1.31 1.36 1.40 1.46 Sheave/Motor 2500 Turns Open 0.47 0.51 0.55 0.60 0.67 0.73 0.78 0.84 0.89 0.94 1.00 1.05 1.11 1.16 1.23 1.28 1.35 1.41 1.46 1.51 1.56...
  • Page 16 Table 8 — 50RTP08 Blower Performance Data (cont) AIRFLOW (cfm) 1.29 1.37 1.44 1.52 1.59 1.67 1.74 1.82 1.89 2.00 2.04 2.12 2.20 2.28 2.36 2.44 2.52 2.60 2.67 2.77 2.84 Sheave/Motor 3800 Turns Open 1.41 1.48 1.54 1.61 1.70 1.78 1.84 1.93 2.01 2.08 2.17 2.26 2.33 2.41 2.49 2.57 2.65 2.74 2.81 2.89 Sheave/Motor 3900 Turns Open...
  • Page 17 Table 9 — 50RTP10 Blower Performance Data AIRFLOW (cfm) 0.66 0.71 0.76 0.81 0.86 0.94 1.02 Sheave/Motor 3000 Turns Open 0.73 0.79 0.85 0.91 0.98 1.04 1.10 1.16 1.23 1.29 1.36 1.43 1.50 1.58 1.64 1.72 1.78 1.84 1.89 1.95 2.01 Sheave/Motor 3100 Turns Open...
  • Page 18 Table 9 — 50RTP10 Blower Performance Data (cont) AIRFLOW (cfm) 1.76 1.84 1.93 2.00 2.08 2.17 2.25 2.34 2.42 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.16 3.24 3.31 3.39 3.45 Sheave/Motor 4300 Turns Open 1.86 1.95 2.04 2.12 2.22 2.32 Sheave/Motor 4400 Turns Open...
  • Page 19 Table 10 — 50RTP12 Blower Performance Data AIRFLOW (cfm) 0.86 0.93 1.01 1.10 1.18 1.26 1.36 1.46 1.57 1.68 1.77 1.86 1.94 2.03 2.14 2.27 2.38 2.52 2.70 2.86 3.04 Sheave/Motor 3600 Turns Open 1.06 1.15 1.24 1.33 1.41 1.51 1.59 1.69 1.77 1.87 1.95 2.03 2.13 2.23 2.36 2.49 2.60 2.74 2.88 3.04 3.18 Sheave/Motor 3800 Turns Open...
  • Page 20 Table 11 — 50RTP14 Blower Performance Data AIRFLOW (cfm) — — — Sheave/Motor — — — 4200 — — — Turns Open — — — — — — Sheave/Motor — — — 4400 — — — Turns Open — — —...
  • Page 21 Table 11 — 50RTP14 Blower Performance Data (cont) AIRFLOW (cfm) 1.43 1.54 1.66 1.78 1.90 2.05 2.21 2.37 2.52 2.62 2.73 2.83 2.95 3.13 3.28 3.47 3.65 3.76 3.87 3.97 4.08 Sheave/Motor 6400 Turns Open 1.55 1.68 1.83 1.96 2.12 2.24 2.36 2.47 2.61 2.74 3.00 3.01 3.17 3.34 3.48 3.66 3.82 3.94 4.06 4.16 4.28 Sheave/Motor 6600 Turns Open...
  • Page 22 Table 12 — 50RTP20 Blower Performance Data AIRFLOW (cfm) — 1.50 1.60 1.71 1.85 2.01 2.17 2.32 2.42 2.53 2.63 2.75 2.93 3.12 3.27 3.45 3.55 3.64 3.73 3.81 3.88 Sheave/Motor — 6,000 — Turns Open — — 1.67 1.80 1.93 2.06 2.18 2.30 2.43 2.57 2.70 2.84 2.98 3.14 3.26 3.42 3.56 3.68 3.77 3.88 3.99 4.11 Sheave/Motor —...
  • Page 23 Table 12 — 50RTP20 Blower Performance Data (cont) AIRFLOW (cfm) 3.80 3.97 4.11 4.28 4.46 4.62 4.78 5.00 5.14 5.32 5.52 5.72 5.92 6.12 6.30 6.46 6.58 6.74 6.87 Sheave/Motor 8,600 Turns Open 4.06 4.25 4.41 4.60 4.76 5.00 5.11 5.27 5.44 5.64 5.84 6.04 6.24 6.43 6.56 6.72 6.88 7.01 7.17 Sheave/Motor 8,800 Turns Open...

  • Page 24: Supply Voltage

    Relay/Contactor Coil Thermistor Condensate Pan Circuit Breaker 5. Typical heat pump thermostat wiring shown. Refer to thermostat installation instructions for wiring to the unit. Thermostat wiring must be “Class 1” and voltage rating equal to or greater than unit supply voltage.
  • Page 25 a50-8554...
  • Page 26 a50-8555 Complete C Complete C 50RTP03-06 UNITS Complete C 1 Complete C 2 Complete C 2 Complete C 1 50RTP08-20 UNITS Fig. 8 — Typical Control Wiring with Complete C and LON Controller...
  • Page 27 4. FPI thermistor provides freeze protection for WATER. When using ANTIFREEZE solutions, cut JW3 jumper. 5. Typical heat pump thermostat wiring shown. Refer to thermostat installation instructions for wiring to the unit. Thermostat wiring Fig. 9 — 50RTP03-06 Units — Typical Control Wiring with Deluxe D Controls...
  • Page 28 a50-8557...
  • Page 29 a50-8558 Deluxe D Deluxe D SIZES 03-06 Deluxe D 1 Deluxe D 2 SIZES 08-20 Fig. 11 — Typical Control Wiring with Deluxe D and LON Controller...
  • Page 30 LEGEND — Control Relay LWT — Leaving Water Temperature Sensor SAT — Supply Air Temperature Sensor SPT — Space Temperature Sensor NOTE: Reversing valve is on in Cooling mode. Fig. 12 — Premierlink™ Controller Applications Wiring with Complete C Control LEGEND LWT —...
  • Page 31 A50-8355...
  • Page 32 A50-8354...
  • Page 33 LED1 GREEN Rnet+ WHITE Rnet- BLACK +12V To WSHP Controller Rnet Terminals (J13)

  • Page 34: Installation

    Step 8 — Connect Low Voltage Wiring THERMOSTAT CONNECTIONS — The thermostat should be wired directly to the Aquazone™ control board. See Fig. 17-19. WATER FREEZE PROTECTION — The Aquazone control allows the field selection of source fluid freeze protection points through jumpers.

  • Page 35: Air Coil Freeze Protection

    5. Closed-Type Cooling Tower or Open Tower with Heat Exchanger: Check equipment for proper temperature set points and operation. 6. Verify Balanced Water Flow Rate to Heat Pump. 7. Standby Pump: Verify that the standby pump is properly installed and in operating condition.

  • Page 36: Deluxe D Control Accessory Relay

    2, W1 is used for heating stage 1 and O/W2 is used for heating stage 2. Select ON for heat pump applications. 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 RV (heating or cooling) depending upon switch 4 setting.

  • Page 37: 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. Room temperature should be approximately 70 to 75 F dry bulb. Loop water temperature entering the heat pumps should be between 60 and 110 F.

  • Page 38: Unit Start-Up With Whsp 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 39: Flow Regulation

    Carrier will not be responsible or liable for damages from water leaks due to inadequate or lack of a pressurized leak test, or damages caused by exceeding the maximum pressure rating during installation.

  • Page 40: Start-Up

    Table 17 — Antifreeze Percentages by Volume MINIMUM TEMPERATURE FOR FREEZE PROTECTION (F) ANTIFREEZE 0° Methanol (%) Propylene Glycol (%) Ethylene Glycol (%) Cooling Tower/Boiler Systems — typically use a common loop maintained at 60 to 90 F. The use of a closed circuit evaporative cooling tower with a secondary heat exchanger between the tower and the water loop is recom- mended.
  • Page 41 Oc- cupancy types are described in the scheduling section below. The following sections describe the functionality of the WSHP Open multi-protocol controller. All point objects referred to in this sequence of operation will be referenced to the objects as viewed in the BACview handheld user interface.
  • Page 42 After a compressor is staged off, it may be restarted again after a normal time-guard period of 5 minutes and if the supply-air temperature has increased above the minimum supply-air temperature limit. The WSHP Open controller provides a status input to moni- tor the compressor operation.

  • Page 43: System Test

    The control has four user adjustable set points: DCV start control set point, DCV maximum control set point, minimum damper position, and DCV maximum damper position. Two-Position OA Damper — The control can be configured to operate a ventilation damper in a two-position ventilation mode to provide the minimum ventilation requirements during occupied periods.
  • Page 44 Table 18 — Complete C Control Current LED Status and Alarm Relay Operations LED STATUS DESCRIPTION OF OPERATION Normal Mode Normal Mode with PM Warning Control is non-functional Slow Flash Fault Retry Fast Flash Lockout Slow Flash Over/Under Voltage Shutdown Flashing Code 1 Test Mode —...

  • Page 45: Aquazone Deluxe D Control Led Indicators

    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. Follow all safety codes. Wear safety glasses and rubber gloves when using inhibited hydrochloric acid solution.

  • Page 46: Checking System Charge

    Clean condensers with an inhibited hydrochloric acid solu- tion. The acid can stain hands and clothing, damage concrete, and, without inhibitor, damage steel. Cover surroundings to guard against splashing. Vapors from vent pipe are not harmful, but take care to prevent liquid from being carried over by the gases.

  • Page 47: Troubleshooting

    TROUBLESHOOTING When troubleshooting problems with a WSHP, consider the cuases and solutions in Table 21. A thermistor may be required for single- Thermistor — phase units where starting the unit is a problem due to low voltage. COIL AIRFLOW AIRFLOW (°F) (°F) THERMISTOR...
  • Page 48 Ensure thermostat set for heating or cooling operation. Unit locked out Check for lockout codes. Reset power. 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. SOLUTION...
  • Page 49 Fan motor Check for line voltage at motor. Check capacitor. Thermostat wiring Check Y and W wiring at heat pump. Jumper Y and R for compressor operation in test mode. Reversing valve Set for cooling demand and check 24 VAC on RV coil and at control.

  • Page 50: Appendix A - Wshp Open Screen Configuration

    APPENDIX A — WSHP OPEN SCREEN CONFIGURATION PASSWORD SCREEN NAME POINT NAME LEVEL Operating Mode Condenser Leaving Temperature Condenser Entering Temperature Equipment No Password Compressor Capacity Status Required Damper Position Auxiliary Heat Dehumidification SPT Alarm Status Alarming SPT SPT Alarm Limit SPT Sensor Alarm IAQ Alarm Status Compressor Alarm...
  • Page 51 APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont) PASSWORD SCREEN NAME POINT NAME LEVEL 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...
  • Page 52 APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont) PASSWORD SCREEN NAME POINT NAME LEVEL 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 access Set Points Unoccupied RH...
  • Page 53 APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) PASSWORD SCREEN NAME POINT NAME LEVEL 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...
  • Page 54 APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) PASSWORD SCREEN NAME POINT NAME LEVEL # of Fan Speeds G Output Type Compressor Stages Reversing Valve Type Leaving Air Auxiliary Entering Air Water Economizer Type 2-Position Water Modulating Water Ventilation Damper Damper Actuator Type Configuration Humidity Sensor...
  • Page 55 APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont) PASSWORD SCREEN NAME POINT NAME LEVEL 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...
  • Page 58 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. 04-53500070-01 Printed in U.S.A. Form 50RTP-1SI Pg 58 7-10 Replaces: New...

  • Page 59: Start-Up Checklist

    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 60 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. 04-53500070-01 Printed in U.S.A.

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