Carrier Aquazone 50PCH Series Installation, Start-Up And Service Instructions Manual
  1. Manuals
  2. Brands
  3. Carrier Manuals
  4. Heat Pump
  5. AQUAZONE 50PCH
  6. Installation, start-up and service instructions manual

Carrier Aquazone 50PCH Series Installation, Start-Up And Service Instructions Manual

Compact water source heat pumps with puron refrigerant (r-410a) 50 hz
Hide thumbs Also See for Aquazone 50PCH Series:
Table of Contents

Advertisement

Quick Links

CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GREENHOUSE GAS REGULATION . . . . . . . . . . . . . . 2
F-Gas Regulation (517/2014) . . . . . . . . . . . . . . . . . . . 2
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . 2
Installation Guidelines (All Units) . . . . . . . . . . . . . . . 2
Step 2 - Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 3 - Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 4 - Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . 7
Step 5 - Check Duct System . . . . . . . . . . . . . . . . . . 8
Step 6 - Install Condensate Drain . . . . . . . . . . . . . . 9
Step 7 - Pipe Connections . . . . . . . . . . . . . . . . . . . . 9
Step 8 - Wire Field Power Supply . . . . . . . . . . . . . 13
Step 9 - Wire Control Connections . . . . . . . . . . . . 13
Step 10 - Wire Field Controls . . . . . . . . . . . . . . . . . 19
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Fan Motor Speeds/Changing Speeds . . . . . . . . . . . 23
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Scroll Compressor Rotation . . . . . . . . . . . . . . . . . . 25
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Flow Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . 32
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . 32
Refrigerant System . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Fan Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . 33
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 33
Checking System Charge . . . . . . . . . . . . . . . . . . . . . 34
Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . 34
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 35
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500286-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Compact Water Source Heat Pumps
with Puron
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Control Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Page
Thermostatic Expansion Valves . . . . . . . . . . . . . . . .35
Disposal of Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
50PCH START-UP CHECKLIST . . . . . . . . . . . . . .. CL-1
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 components. Only
trained and qualified service personnel should install, repair, or
service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions 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 precautions in the litera-
ture, tags and labels attached to the unit, and other safety precau-
tions that may apply.
Improper installation, adjustment, alteration, service, mainte-
nance, 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 mod-
ifying 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 warn-
ings or cautions attached to the unit. Consult local building codes
and the National Electrical Code (NEC, U.S.A.) for special instal-
lation requirements.
Understand the signal words - DANGER, WARNING, and
CAUTION. DANGER identifies the most serious hazards which
will result in severe personal injury or death. WARNING signifies
hazards that could result in personal injury or death. CAUTION is
used to identify unsafe practices, which would result in minor per-
sonal injury or product and property damage.
Recognize safety information. This is the safety-alert symbol
(
). When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Electrical shock can cause personal injury or death. Before
installing or servicing system, always turn off main power to
system. There may be more than one disconnect switch. Turn
off accessory heater power if applicable.
Form 50PC-C4SI
Pg 1
Aquazone™
50PCH 009-070
Refrigerant (R-410A) 50 Hz
®
WARNING
11-2020
Replaces: 50PC-C3SI

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Aquazone 50PCH Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Carrier Aquazone 50PCH Series

Summary of Contents for Carrier Aquazone 50PCH Series

  • Page 1: Table Of Contents

    Aquazone™ 50PCH 009-070 Compact Water Source Heat Pumps with Puron Refrigerant (R-410A) 50 Hz ® Installation, Start-Up, and Service Instructions CONTENTS Thermistor ....... . .35 Control Sensors .

  • Page 2: General

    Table 1 — Refrigerant Charge and CO Equivalent WARNING GLOBAL equivalent WARMING DO NOT USE TORCH to remove any component. System Refrigerant tonnage (t) POTENTIAL Model Charge (kg) of refrigerant contains oil and refrigerant under pressure. (GWP) charge [kgCO2eq] To remove a component, wear protective gloves and goggles 50PCH009 0.454 0.947...

  • Page 3: Step 2 - Check Unit

    Be sure unit is mounted at a height sufficient to provide an INSPECT UNIT adequate slope of the condensate lines. If an appropriate slope To prepare the unit for installation, complete the procedures listed cannot be achieved, a field-supplied condensate pump may below: be required.
  • Page 4 Table 2 — Physical Data — 50PCH (009-070) Units ETL Rated 50PCH UNIT COMPRESSOR (1 each) Rotary Scroll Rotary Rotary Rotary Scroll Maximum Water Working Pressure (kPa) 2758 2758 2758 2758 2758 2758 FAN MOTOR AND BLOWER Fan Motor Type/Speeds PSC/3 PSC/3 PSC/3...
  • Page 5 Table 3 — Physical Data — 50PCH (009-070) Units CE Rated 50PCH UNIT COMPRESSOR (1 each) Rotary Rotary Rotary Rotary Scroll Scroll Maximum Water Working Pressure (kPa) 2758 2758 2758 2758 2758 2758 PSC FAN MOTOR AND BLOWER Fan Motor Type/Speeds PSC/3 PSC/3 Fan Motor (W)
  • Page 6 Return Air Opening Return Air Opening Condensate Drain Condensate Drain Compressor Electrical Access Knock-Outs Left Hand Return End Blow Left Hand Return Straight Through 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: Step 3 - Locate Unit

    Table 4 — 50PCH009-070 Corner Weights (kg) LEFT HAND EVAPORATOR RIGHT HAND EVAPORATOR UNIT SIZE TOTAL (kg) LEFT FRONT* RIGHT FRONT* LEFT BACK RIGHT BACK LEFT FRONT* RIGHT FRONT* LEFT BACK RIGHT BACK * Front is counter box end. ensure that no part of the unit cabinet is touching part of the build- Step 3 —...

  • Page 8: Step 5 - Check Duct System

    CAUTION If the unit is located in a crawl space, the bottom of the unit must be at least 101.6 mm above grade to prevent flooding of the electrical parts due to heavy rains. Hanging Bracket Assembly All horizontal units come with a hanging bracket kit to facilitate suspended unit mounting using threaded rod.

  • Page 9: Step 6 - Install Condensate Drain

    Refer to Piping Section of Carrier System Design Manual Remove the blower support brackets from the bottom of the for additional information.
  • Page 10 supply and return lines for unit isolation and unit water flow return hoses should be connected together during this process to balancing. ensure the entire system is properly flushed. After the cleaning and flushing has taken place the unit may be connected to the Pressure/temperature ports are recommended in both the supply water loop and should have all valves wide open.
  • Page 11 COOLING TOWER/BOILER APPLICATION LINE VOLTAGE DISCONNECT LOW VOLTAGE CONTROL CONNECTION P/T PLUGS (Optional) HOSE KITS BALL VALVES SUPPLY AND RETURN LINES OF CENTRAL SYSTEM FLEX DUCT CONNECTION HANGING BRACKETS ASSEMBLY THREADED ROD Fig. 9 — Cooling/Boiler Application Fig. 10 — Earth Coupled Application...
  • Page 12 Optional pressure-rated hose assemblies designed specifically for Install an angle adapter to avoid sharp bends in the hose when use with Carrier units are available. Similar hoses can be obtained the radius falls below the required minimum. from alternate suppliers. Supply and return hoses are fitted with NOTE: Piping must comply with all applicable codes.

  • Page 13: Step 8 - Wire Field Power Supply

    Male adapters secure hose assemblies to the unit and risers. Install hose assemblies properly and check them regularly to avoid sys- WARNING tem failure and reduced service life. See Fig. 12. To avoid possible injury or death due to electrical shock, never Swivel route control wiring through the same conduit as power sup- Brass...
  • Page 14 Table 7 — C Board Factory Default Settings WARNING FACTORY DEFAULT SETTINGS Temperature –3.3°C Exceeding the transformer capacity can result in low control Lockout voltage, erratic unit operation or damage to the heat pump. Reset Table 6 — Low Voltage VA Draw Alarm Pulse Test...

  • Page 19: Step 10 - Wire Field Controls

    Table 9 — 50PCH (015-070) Unit with ECM Motor Electrical Data RATED COMPRESSOR FAN MOTOR FAN MOTOR TOTAL UNIT MIN CIRCUIT MAX FUSE/ UNIT SIZE VOLTAGE MOP CALC HACR V-Ph/Hz 220-240/1/50 5.48 24.50 2.80 0.33 8.28 15.1 220-240/1/50 5.90 24.00 2.80 0.33 8.70...
  • Page 20 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...
  • Page 21 Board Power Indicator C Board Status LED Indicator Water Coil Freeze Protection Temperature Selection [R30] Air Coil Freeze Protection Temperature Selection C Board Settings Water Coil Freeze Connection Air Coil Freeze Connection LED Status-Diagnostic Connection 24VAC Power Input Compressor Contact Output High Pressure Switch Connection Call for Compressor Y1 Low Pressure Switch Connection...
  • Page 22 Brownout/Surge/Power Interruption Protection The brownout protection in the UPM will shut down the compres- sor if the incoming power falls below 18 VAC. The compressor will remain OFF until the voltage is above 18 VAC and ANTI- SHORT CYCLE TIMER (300 seconds) times out. The unit will not go into a hard lockout.

  • Page 23: Pre-Start-Up

    PRE-START-UP Fan Motor Speeds/Changing Speeds System Checkout After completing the installation, and before energizing the unit, The standard motor for all 50PC Series heat pumps is a three- the following system checks should be made prior to initial start- speed PSC motor. See Table 12. If a speed change is required, fol- low the instructions below: Verify that the supply voltage to the heat pump is in Disconnect power to the heat pump.

  • Page 24: Start-Up

    Table 13 — 50PCH 015-070 Blower Performance — ECM Unit EXTERNAL STATIC PRESSURE (Pa) UNIT SIZE SPEED – — — Norm — — — — – — — Norm — — — — — — — — – — — Norm —...

  • Page 25: Scroll Compressor Rotation

    Scroll Compressor Rotation Unit Start-Up It is important to be certain compressor is rotating in the proper di- Set the thermostat to the highest setting. rection. To determine whether or not compressor is rotating in the Set the thermostat system switch to “COOL” and the fan proper direction: switch to the “AUTO”...
  • Page 26 Table 17 — 50PC012 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER WATER SUCTION DISCHARGE WATER AIR TEMP SUCTION DISCHARGE WATER FLOW AIR TEMP TEMP PRESSURE PRESSURE TEMP RISE DROP PRESSURE PRESSURE TEMP DROP (L/s) RISE (C) (kPa) (kPa) (C)DB (kPa)
  • Page 27 Table 19 — 50PC018 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER WATER SUCTION DISCHARGE WATER AIR TEMP SUCTION DISCHARGE WATER FLOW AIR TEMP TEMP PRESSURE PRESSURE TEMP RISE DROP PRESSURE PRESSURE TEMP DROP (L/s) RISE (C) (kPa) (kPa) (C)DB (kPa)
  • Page 28 Table 21 — 50PC030 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER WATER SUCTION DISCHARGE WATER AIR TEMP SUCTION DISCHARGE WATER FLOW AIR TEMP TEMP PRESSURE PRESSURE TEMP RISE DROP PRESSURE PRESSURE TEMP DROP (L/s) RISE (C) (kPa) (kPa) (C)DB (kPa)
  • Page 29 Table 23 — 50PC042 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER WATER SUCTION DISCHARGE WATER AIR TEMP SUCTION DISCHARGE WATER FLOW AIR TEMP TEMP PRESSURE PRESSURE TEMP RISE DROP PRESSURE PRESSURE TEMP DROP (L/s) RISE (C) (kPa) (kPa) (C)DB (kPa)

  • Page 30: Flow Regulation

    Table 25 — 50PC060 Typical Unit Operating Pressures and Temperatures COOLING HEATING ENTERING WATER WATER SUCTION DISCHARGE WATER AIR TEMP SUCTION DISCHARGE WATER FLOW AIR TEMP TEMP PRESSURE PRESSURE TEMP RISE DROP PRESSURE PRESSURE TEMP DROP (L/s) RISE (C) (kPa) (kPa) (C)DB (kPa)

  • Page 31: Antifreeze

    Maintain a fluid level in the tank above the return tee to avoid Table 28 — Water Side Pressure Drop air entering back into the fluid. 50PC UNIT WATER FLOW WATER SIDE Shutting off the return valve that connects into the flush cart SIZE RATE (l/s) PRESSURE DROP (kPa)

  • Page 32: Cooling Tower/Boiler Systems

    These systems typically use a common loop temperature main- be recovered without exception. Technicians must follow tained at 15.6 to 32.2°C. Carrier recommends using a closed cir- industry accepted guidelines and all local, state and federal stat- cuit evaporative cooling tower with a secondary heat exchanger utes for the recovery and disposal of refrigerants.

  • Page 33: Condensate Drain Cleaning

    See Fig. 23. mended. Refer to the Carrier System Design Manual, Part 5, for Regulate flow to condenser with a supply line valve. If pump is a general water conditioning information.

  • Page 34: Checking System Charge

    Read liquid line temperature on thermometer, then subtract Checking System Charge from saturated condensing temperature. The difference Units are shipped with full operating charge. equals subcooling temperature. Compare the subcooling temperature with the normal tem- IMPORTANT: If the refrigerant charge is adjusted from perature listed in Tables 16-26.

  • Page 35: Troubleshooting

    the temperature of and pressure within the bulb decreases, the TROUBLESHOOTING valve will modulate closed and restrict the refrigerant flow When troubleshooting problems with a WSHP, consider the fol- through the valve. The result is less refrigerant in the evaporator lowing.
  • Page 36 Causes of TXV Failure Refrigerant pressure-temperature chart for the refrigerant used. A cracked, broken, or damaged sensing bulb or capillary can be caused by excessive vibration of the capillary during ship- To determine that a TXV has failed, verify the following: ping or unit operation.

  • Page 37: Disposal Of Unit

    Disposal of Unit IMPORTANT: Due to the hygroscopic nature of the POE oil NOTE: If you want to dispose of this equipment, DO NOT use the in Puron refrigerant (R-410A) and other environmentally ordinary trash receptacle! This product contains fluorinated green- balanced refrigerants, any component replacement must be house gases and lead.
  • Page 38 Table 31 — 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 Check water temperature - is it in range? water temperature High Pressure fault - fouled or Check for proper flow rate and water temperature, but...
  • Page 39 Table 31 — Troubleshooting (cont) FAULT COOLING HEATING CHECK POSSIBLE CAUSE SOLUTION Bad thermostat Check thermostat and wiring. Check unit terminal block Power LED on connection / faulty for 24 VAC between "Y" and "C" and "G" and "C". thermostat Ensure that the supply voltage to the unit is with in the Low or no supply power No compressor or fan...
  • Page 40 Table 31 — Troubleshooting (cont) FAULT COOLING HEATING CHECK POSSIBLE CAUSE SOLUTION Fan speed setting too Consult blower performance table and reduce fan Airflow too high high speed if possible. Loss of refrigeration Low refrigerant Check refrigerant pressures with gage set. capacity High humidity Check unit performance against building load...
  • Page 42 © 2020 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500286-01 Printed in U.S.A. Form 50PC-C4SI Pg 42 11-2020 Replaces: 50PC-C3SI...

  • Page 43: 50Pch Start-Up Checklist

    50PCH START-UP CHECKLIST 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 44 = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE (DEG. C) *Use 500 for water, 485 for antifreeze. 8733827254 © 2020 Carrier Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500286-01 Printed in U.S.A.

This manual is also suitable for:

Aquazone 50pch009Aquazone 50pch070Aquazone 50pch012Aquazone 50pch015Aquazone 50pch018Aquazone 50pch024 ... Show all

Table of Contents