Carrier AQUAZONE 50HQP072-120 Installation And Service Instructions Manual

Carrier AQUAZONE 50HQP072-120 Installation And Service Instructions Manual

Horizontal water source heat pumps with puron refrigerant (r-410a) 50 hz
Table of Contents

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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 - Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
• PROTECTION
Step 3 - Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 4 - Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 5 - Install Duct System. . . . . . . . . . . . . . . . . . . . . 5
• EXISTING DUCT SYSTEM
• INSTALLATION
• VENTING
Step 7 - Field Convert Air Discharge . . . . . . . . . . . . 6
Step 8 - Install Piping Connections . . . . . . . . . . . . . 7
• GROUND-WATER APPLICATIONS
• EXTERNAL LOOP POWER CONNECTION
• WATER SOLENOID VALVES
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-20
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Airflow and External Static Pressure . . . . . . . . . . . 16
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . 20-22
Complete C Control Jumper Settings. . . . . . . . . . . 20
Complete C Control DIP Switches. . . . . . . . . . . . . . 20
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 20
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 21
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-24
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Start Up System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 22
Unit Start-Up in Cooling Mode. . . . . . . . . . . . . . . . . . . 22
Unit Start-Up in Heating Mode. . . . . . . . . . . . . . . . . . . 23
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500077-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Horizontal Water Source Heat Pumps
with PURON
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Page
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 24
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 24
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24,25
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25,26
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-29
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 27
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 27
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Fan Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Air Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 28
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 28
Blower Fan Sheaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Blower Fan Performance Adjustment . . . . . . . . . . . 29
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 30-32
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
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
Form 50HQP-C1SI
AQUAZONE™
50HQP072-120
®
Refrigerant (R-410A)
Pg 1
11-10
50 Hz
Page
Replaces: New

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Summary of Contents for Carrier AQUAZONE 50HQP072-120

  • Page 1: Table Of Contents

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

    accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing. Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit.
  • Page 3: Inspect Unit

    especially important in areas where painting, plastering, or spraying of fireproof material, etc. is not yet complete. Foreign material that is allowed to accumulate within the units can pre- vent proper start-up and necessitate costly clean-up operations. Before installing any of the system components, be sure to examine each pipe, fitting, and valve, and remove any dirt or foreign material found in or on these components.
  • Page 4 LEFT RETURN STRAIGHT DISCHARGE FRONT BSP — Blower Service Panel CAP — Control Access Panel CBP — Control Box Panel EAP — Expansion Valve Access Panel NOTES: 1. All dimensions in centimeters, unless indicated. 2. Access is required for all removable panels and installer should take care to comply with all building codes and allow adequate clearance.
  • Page 5: Step 3 - Locate Unit

    LEGEND BSP — Blower Service Panel CAP — Control Access Panel CBP — Control Box Panel EAP — Expansion Valve Access Panel a50-8534 Step 3 — Locate Unit — should be considered when choosing a location for a WSHP: • Units are for indoor use only. •...
  • Page 6: Step 6 - Install Condensate Piping Drain

    EXISTING DUCT SYSTEM — If the unit is connected to existing ductwork, consider the following: • Verify that the existing ducts have the proper capacity to handle the unit airflow. If the ductwork is too small, larger ductwork should be installed. •...
  • Page 7: Step 8 - Install Piping Connections

    3 types of WSHP piping sys- tems to choose from: water loop, ground-water and ground loop. Refer to the Carrier System Design Manual for additional infor- mation. All WSHP units utilize low temperature soldered female...
  • Page 8: Ground-Loop Applications

    RIB CRIMPED LENGTH (2 FT [0.6M] LENGTH STANDARD) Fig. 10 — Supply/Return Hose Kit • All plastic to metal threaded fittings should be avoided due to the potential to leak. Use a flange fitted substitute. • Teflon tape thread sealant is recommended to minimize internal fouling of the heat exchanger.
  • Page 9: 420-Volt Operation

    Determine percent voltage imbalance. % Voltage Imbalance = 100 x = 0.95% This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electri- cal components.
  • Page 10 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 11 Complete C Complete C1 — Blower Contactor — Circuit Breaker — Compressor Contactor — Sensor, Condensate Overflow — Dual Point Power — Sensor, Water Coil Freeze Protection — Sensor, Air Coil Freeze Protection — High-Pressure Switch HPWR — High-Pressure Water Relay —...
  • Page 13 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. 14 — Premierlink™ Controller Applications Wiring with Complete C Control LEGEND LWT —...
  • Page 14 Table 3A — Electrical Data — 50HQP072-120 Standard Units UNIT VOLTAGE VOLTAGE 50HQP CODE 380/420-3-50 380/420-3-50 380/420-3-50 Table 3B — Electrical Data — 50HQP072-120 Dual Point Power Units UNIT VOLTAGE MIN/MAX VOLTAGE 50HQP CODE VOLTAGE 380/420-3-50 360/440 380/420-3-50 360/440 380/420-3-50 360/440 LEGEND —...
  • Page 15: Installation

    Fig. 20 and 21 to the low voltage terminal strip on the Complete C or Deluxe D control board. Most heat pump thermostats will work with a Carrier unit, provided the thermostat has the correct number of heating and cooling stages.
  • Page 16: Pre-Start-Up

    PRE-START-UP When the installation is complete, System Checkout — follow the system checkout procedure outlined below before starting up the system. Be sure: 1. Voltage is within the utilization range specifications of the unit compressor and fan motor and voltage is balanced for 3-phase units.
  • Page 17 AIRFLOW (l/s) — — 0.09 Sheave/Mtr — — — — Turns Open — — — 0.12 0.14 Sheave/Mtr — — Turns Open — 0.12 0.14 0.17 Sheave/Mtr Turns Open 0.14 0.17 0.19 Sheave/Mtr Turns Open 0.16 0.19 0.22 Sheave/Mtr Turns Open 0.15 0.18 0.21...
  • Page 18 AIRFLOW (l/s) — 0.15 0.18 Sheave/Mtr — — Turns Open — 0.19 0.21 0.24 Sheave/Mtr Turns Open 0.20 0.22 0.25 Sheave/Mtr Turns Open 0.24 0.27 0.30 Sheave/Mtr Turns Open 0.26 0.29 0.32 Sheave/Mtr 1038 Turns Open 0.30 0.34 0.37 Sheave/Mtr 1086 Turns Open 0.34...
  • Page 19 AIRFLOW (l/s) — 0.29 0.31 Sheave/Mtr — 1038 — Turns Open — 0.30 0.33 0.37 Sheave/Mtr 1086 Turns Open 0.34 0.37 0.40 Sheave/Mtr 1133 Turns Open 0.37 0.40 0.44 Sheave/Mtr 1180 Turns Open 0.40 0.44 0.47 Sheave/Mtr 1227 Turns Open 0.44 0.47 0.51...
  • Page 20: Field Selectable Inputs

    AIRFLOW (l/s) 0.79 0.85 0.89 Sheave/Mtr 1605 Turns Open 0.87 0.91 0.96 Sheave/Mtr 1652 Turns Open 0.94 0.99 1.04 Sheave/Mtr 1699 Turns Open 1.01 1.05 1.10 Sheave/Mtr 1746 Turns Open 1.07 1.11 1.17 Sheave/Mtr 1794 Turns Open 1.17 1.21 1.27 Sheave/Mtr 1841 Turns Open...
  • Page 21: Deluxe D Control Dip Switches

    AIR COIL FREEZE PROTECTION (FP2) LIMIT SET- TING — Select jumper 2 (JW2-FP2 Low Temp) to choose FP2 limit of –12.2 C or –1.1 C. To select –1.1 C as the limit, DO NOT clip the jumper. To select –12.2 C as the limit, clip the jumper.
  • Page 22: Start-Up

    MECHANICAL NIGHT SET BACK — When NSB input is connected to ground C, all thermostat inputs are ignored. A thermostat set back heating call will then be connected to the OVR input. If OVR input becomes active, then the Deluxe D control will enter Night Low Limit (NLL) staged heating mode.
  • Page 23: Unit Start-Up In Heating Mode

    Pressurize and check the system for leaks and repair as appropriate. 4. Verify that all strainers are in place. Carrier recommends a strainer with a no. 20 stainless steel wire mesh. Start the pumps, and systematically check each vent to ensure that all air is bled from the system.
  • Page 24: Antifreeze

    Test pressure may not exceed the maximum allowable pressure for the unit and all components within the water system. Carrier will not be responsible or liable for damages from water leaks due to...
  • Page 25: System Test

    immediately once the demand is removed. The control re- verts to Heating Stage 1 mode. If there is a master/slave or dual compressor application, all compressor relays and re- lated functions will operate per their associated DIP switch 2 setting on S1. HEATING STAGE 3 —...
  • Page 26: Service

    Table 15 — Complete C Control LED Code and FAULT CODE No fault in memory High-Pressure Switch Low-Pressure Switch Freeze Protection Coax — FP1 Freeze Protection Air Coil — FP2 Condensate overflow Over/Under Voltage Shutdown (Autoreset) PM Warning FP1 and FP2 Thermistors are swapped LEGEND —...
  • Page 27: Filters

    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 28: Compressor

    GAS VENT PUMP PRIMING CONN. GLOBE VALVES SUCTION SUPPLY PUMP SUPPORT 1-IN. (25 mm) PIPE TANK RETURN FINE MESH SCREEN Fig. 23 — Forced Circulation Method For average scale deposit, allow solution to remain in con- denser overnight. For heavy scale deposit, allow 24 hours. Drain condenser and flush with clean water.
  • Page 29: Blower Fan Performance Adjustment

    NOTE: There should be a 3 to 6 mm gap between the mating part hub and the bushing flange. If the gap is closed, the bushing is probably the wrong size. 3. With taper-lock bushed hubs, be sure the bushing bolts are tightened evenly to prevent side-to-side pulley wob- ble.
  • Page 30: Troubleshooting

    TROUBLESHOOTING When troubleshooting problems with a WSHP, see Table 18. A thermistor may be required for single- Thermistor — phase units where starting the unit is a problem due to low voltage. See Fig. 26 for thermistor nominal resistance. The control system employs 2 nom- Control Sensors —...
  • Page 31 FAULT HEATING COOLING Main Power Problems HP Fault — Code 2 High Pressure LP Fault — Code 3 Low Pressure/Loss of Charge FP1 Fault — Code 4 Water Freeze Protection FP2 Fault — Code 5 Air Coil Freeze Protection Condensate Fault — Code 6 Over/Under Voltage —...
  • Page 32 FAULT HEATING COOLING Only Compressor Runs Unit Does Not Operate in Cooling Insufficient Capacity/ Not Cooling or Heating Properly High Head Pressure Low Suction Pressure Low Discharge Air Temperature in Heating High Humidity LEGEND — Freeze Protection — High Pressure LED —...
  • Page 34 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. 04-53500077-01 Printed in U.S.A. Form 50HQP-C1SI Pg 34 11-10 Replaces: New...
  • Page 35: 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 36 SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE (DEG C) *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. 04-53500077-01 Printed in U.S.A.

This manual is also suitable for:

Aquazone 50hqp072Aquazone 50hqp096Aquazone 50hqp120

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