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Carrier AQUAZONE 50PEC09-18 Installation, Start-Up And Service Instructions Manual

Water source heat pump console unit with puron refrigerant (r-410a)
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Installation, Start-Up and Service Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Step 1 - Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 - Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 17
• UNIT PROTECTION
Step 3 - Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 17
• WSHP OPEN WIRING
• SUPPLY AND RETURN PIPING
Step 7 - Install Condensate Piping . . . . . . . . . . . . 33
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-35
System Cleaning and Flushing . . . . . . . . . . . . . . . . 33
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .36,37
Complete C Control Jumper Settings. . . . . . . . . . . 36
Complete C Control DIP Switches. . . . . . . . . . . . . . 36
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 36
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 36
Deluxe D Control Accessory
Relay Configurations . . . . . . . . . . . . . . . . . . . . . . . 37
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-40
Unit Start-Up/Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 37
Operating Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Unit Start-Up/Heating . . . . . . . . . . . . . . . . . . . . . . . . . 37
Flow Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . 40
Heat Exchanger Well Systems . . . . . . . . . . . . . . . 40
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-43
Power Up Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
SYSTEM TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . 43-45
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
WSHP Open Test Mode . . . . . . . . . . . . . . . . . . . . . . . 44
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500052-01
Water Source Heat Pump Console Unit
with PURON
Page
Printed in U.S.A.
Form 50PEC-2SI
®
Refrigerant (R-410A)
SERVICE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45-47
Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
System Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Refrigerant System . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condensate Pans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Blower Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Safety Control Reset. . . . . . . . . . . . . . . . . . . . . . . . . . 46
Checking System Charge . . . . . . . . . . . . . . . . . . . . . 47
Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 47
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . 47
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . .47-49
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
WSHP Open Controller. . . . . . . . . . . . . . . . . . . . . . . . 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 components.
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, 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 accesso-
ries 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. Consult
local building codes and applicable electrical codes for special
installation 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
Pg 1
AQUAZONE™
50PEC09-18
Page
7-09
Replaces: 50PEC-1SI

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  • Page 1: Table Of Contents

    Aquazone Deluxe D Control LED Indicators..44 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500052-01 Printed in U.S.A. Water Source Heat Pump Console Unit ® with PURON Refrigerant (R-410A) SERVICE.

  • Page 2: General

    There may be more than one disconnect switch. Turn off accessory heater power if applicable. GENERAL The 50PEC water source heat pump console unit is a decen- tralized room terminal designed for field connection to a closed-circuit piping loop.
  • Page 3 1.62 (41) 2.00 (51) CONTROL BOX COMPRESSOR ACCESS WATER IN PANEL 8.00 MIN (203) a50-8335 oNAL IZED aLVE 2.25 (57) oNNECTIONS CONDENSATE 5/8" (15.9) ID VINYL HOSE LEGEND EPT — External Pipe Thread IPT — Internal Pipe Thread *Dimension reduced by fitting if selected. NOTE: Dimensions shown are in inches.
  • Page 4 1.75 (44) CONTROL BOX COMPRESSOR ACCESS PANEL WATER CONNECTIONS 7/8” (22.2) OD COPPER, 3/4” IPT OR 3/4” EPT 2.12 (54) CONDENSATE 5/8" (15.9) ID VINYL HOSE LEGEND EPT — External Pipe Thread IPT — Internal Pipe Thread *Dimension reduced by fitting if selected. NOTE: Dimensions shown are in inches.
  • Page 5 Filter located inside and at top of air inlet area. Rotate filter latch forward, filter rack can be pulled forward 3” to 4” for filter access AIR INLET AREA 33.5 1.75 (851) (44.5) 1.0 (25) (114) 1.0 (25) R.H. REAR 20.0 ACCESS (NOTE 2)
  • Page 6 Filter located inside and at top of air inlet area. Push tabs up and back to release filter for replacement. AIR INLET AREA 39.50 1.75 (1003) (44.5) 4.50 1.00 (25) (114) 1.00 (25) RH REAR 20.00 ACCESS (508) (NOTE 2) NOTES: 1.
  • Page 7 Filter located inside and at top of air inlet area. Rotate filter latch forward, filter rack can be pulled forward 3” to 4” for filter access AIR INLET AREA 33.5 1.75 (851) (44.5) L.H. PIPE AND ELECTRIC AREA 10.0 6.88 (254) NOTE 2 (174)
  • Page 8 Filter located inside and at top of air inlet area. Rotate filter latch forward, filter rack can be pulled forward 3” to 4” for filter access AIR INLET AREA 39.50 1.75 (1003) (44.5) L.H. PIPE AND ELECTRIC AREA 6.88 10.00 (Note 2) (174) (254)
  • Page 9 21.0 (533) 12.0 BOTTOM VIEW (305) 1.0 (25) (114) 1.0 (25) 20.0 (508) R.H. REAR ACCESS (NOTE 2) NOTES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters. 2. Access is reduced if optional disconnect box is selected. 3.
  • Page 10 21.00 (533) 12.00 BOTTOM VIEW (305) 4.12 (105) 1.00 (25) 1.00(25) 20.00 (508) RH REAR ACCESS (NOTE 2) NOTES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters. 2. Access is reduced if optional disconnect box is selected. 3.
  • Page 11 (89) ° .50 (13) 11.50 (292) (Note 2) (19) 4.12 (105) L.H. (NOTE 2) a50-8345 NOTES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters. 2. Access is reduced if optional disconnect box is selected. 3. Optional autoflow valve, motorized water valve and disconnect box are shown. Fig.
  • Page 12 CONTROL ACCESS DOOR 21.00 (533) (13) L.H. PIPE AND 11.50 ELECTRIC AREA (292) (Note 2) (19) 4.12 (105) REAR VIEW NOTES: 1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters. 2. Access is reduced if optional disconnect box is selected. 3.
  • Page 13 a50-8347...
  • Page 14 a50-8348...

  • Page 17: Step 2 - Check Unit

    DISCONNECT SWITCH ROOM THERMOSTAT HEAT PUMP A = Two power wires for single-phase units. B = 1 heat/1 cool/manual or auto changeover remote 24-V thermostat. NOTE: All customer-supplied wiring to be copper only and must conform to national and local electrical codes. Wiring shown with dashed lines must be field-supplied and field-installed.
  • Page 18 Complete C — Alarm Relay Contacts — Blower Motor — Blower Relay — Capacitor — Circuit Breaker — Sensor, Condensate Overflow — Compressor Relay — Damper Motor — Sensor, Water Coil Freeze Protection — Sensor, Air Coil Freeze Protection — High-Pressure Switch —...
  • Page 19 COMPLETE C — Alarm Relay Contacts — Blower Motor — Blower Relay — Capacitor — Circuit Breaker — Sensor, Condensate Overflow — Compressor Relay — Damper Motor — Sensor, Water Coil Freeze Protection — Sensor, Air Coil Freeze Protection — Fan Speed Switch —...
  • Page 20 a50-8328 DELUXE D — Alarm Relay Contacts — Blower Motor — Capacitor — Circuit Breaker — Sensor, Condensate Overflow — Compressor Relay — Damper Motor — Sensor, Water Coil Freeze Protection — Sensor, Air Coil Freeze Protection — Fan Speed Switch —...
  • Page 21 DELUXE D LEGEND — Alarm Relay Contacts — Blower Motor — Blower Relay — Capacitor — Circuit Breaker — Sensor, Condensate Overflow — Compressor Relay — Damper Motor — Sensor, Water Coil Freeze Protection — Sensor, Air Coil Freeze Protection —...
  • Page 22 4. FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper. 5. Typical heat pump thermostat wiring shown. Refer to thermostat Installation Instructions for wiring to the unit. 6. 24-V alarm signal shown. For dry alarm contact, cut JW1 jumper and dry contact will be available between AL1 and AL2.
  • Page 23 4. FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper. 5. Typical heat pump thermostat wiring shown. Refer to thermostat Installation Instructions for wiring to the unit. 6. 24-V alarm signal shown. For dry alarm con-...
  • Page 24 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. 23 — PremierLink™ Controller Applications with Complete C Control LEGEND LWT —...
  • Page 25 A50-8355...
  • Page 26 A50-8354...
  • Page 27 A50-8356...
  • Page 28 A50-8353...
  • Page 29 a50-8380 GREEN Rnet+ WHITE Rnet- BLACK +12V To WSHP Controller Rnet Terminals (J13) LED1 GREEN Rnet+ WHITE Rnet- BLACK +12V To WSHP Controller Rnet Terminals (J13)

  • Page 30: Step 5 - Wire Low Voltage Connections

    50PEC VOLTAGE V-PH-Hz UNIT SIZE CODE 115-1-60 208/230-1-60 265-1-60 115-1-60 208/230-1-60 265-1-60 208/230-1-60 265-1-60 208/230-1-60 265-1-60 LEGEND — Full Load Amps HACR — Heating, Air Conditioning and Refrigeration — Locked Rotor Amps — Rated Load Amps Step 5 — Wire Low Voltage Connections WATER FREEZE PROTECTION —...

  • Page 31: Optional Wall-Mounted Thermostat

    (ACO) configuration. Refer to Fig. 17-20. When desired, the unit can be furnished with a 24-v control circuit which is field wired to a Carrier-supplied accessory re- mote thermostat. Most heat pump thermostats can be used with the controller. Use a thermostat with Y, G, O and W outputs.

  • Page 32: Step 6 - Install Supply And Return Piping

    Table 6 — Rnet Wiring Specifications RNET WIRING SPECIFICATIONS 4 conductor, unshielded, CMP, Description plenum rated cable Conductor Maximum Length Recommended Coloring Wiring: black, white, green, red UL Temperature Voltage 300-vac, power limited Listing UL: NEC CL2P, or better LEGEND AWG —...

  • Page 33: Step 7 - Install Condensate Piping

    2. Install shut-off/balancing valves and unions at each unit to allow unit removal for servicing. NOTE: If flex hoses are used, unions are not necessary. 3. Install strainers at the inlet of each system circulating pump. IMPORTANT: Since loop temperatures are normally between 60 and 90 F, pipe sweating and heat loss do not occur at normal ambient temperature conditions.

  • Page 34: System Checkout

    4. Closed-Type Cooling Tower (Open Tower with Heat Ex- changer): Check equipment for proper temperature set points and operation. 5. Balanced Water Flow Rate to Heat Pump: Record the inlet and outlet water temperatures as each heat pump unit is started. This check will eliminate nuisance unit tripouts resulting from water velocities that are either too low or too high;...
  • Page 35 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 36: Field Selectable Inputs

    Cooling Stage 2, W1 is used for Heating Stage 1 and O/W2 is used for Heating Stage 2. Select ON for heat pump applica- tions. 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: Relay Configurations

    Room temperature must be below 90 F for unit to shut off. 6. Operate each heat pump in the heating cycle immediately after checking cooling cycle operation. A time delay will prevent the compressor from re-starting for approximate- ly 5 minutes.

  • Page 38: 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 39: Flow Regulation

    b. Select Weekly, then press enter (7 schedules available). c. Select day and press enter. d. Press enter again and select ADD or DEL (DECR or INCR) set schedule. e. Enter ON/OFF time, then press continue. f. Press OK to apply and save to a particular day of the week.

  • Page 40: Cooling Tower/Boiler Systems

    100% USP Food Grade Propylene Glycol (%) Cooling Tower/Boiler Systems — typically use a common loop maintained at 60 to 90 F. Carrier recommends using a closed circuit evaporative cooling tower with a secondary heat exchanger between the tower and the water loop.

  • Page 41: Units With Wshp Open Multiple Protocol

    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 42 maximum speed. If the SAT continues to fall 5 F below the minimum SAT limit, all cooling stages will be disabled. During Cooling mode, the reversing valve output will be held in the cooling position (either B or O type as configured) even after the compressor is stopped.

  • Page 43: Operation

    ASHRAE (American Society of Heating, Refrigerating and Air Conditioning Engineers) specifications by providing a base ventilation rate and then increasing the rate as the CO creases. The control will begin to proportionally increase venti- lation when the CO level rises above the start ventilation set point and will reach the full ventilation rate when the CO is at or above the maximum set point.

  • Page 44: Wshp Open Test Mode

    label. For example, flashing code 1 will have an alarm relay cycling code 1. Code 1 indicates the control has not faulted since the last power-off to power-on sequence. To enter WSHP Open test WSHP Open Test Mode — mode, navigate from the BACview home screen to the config- uration screen.

  • Page 45: Service

    Table 17 — Aquazone™ Deluxe D Control Current LED Status and Alarm Relay Operations STATUS LED DESCRIPTION (Green) Normal Mode Normal Mode with PM D Control is non-functional Test Mode — Night Setback Flashing Code 2 Flashing Code 3 Invalid T-stat Inputs Flashing Code 4 No Fault in Memory HP Fault...

  • Page 46: Condensate Pans

    Proper water treatment can minimize tube fouling and pitting. If such conditions are anticipated, water treatment anal- ysis is recommended. Refer to the Carrier System Design Man- ual, Part 5, for general water conditioning information. CAUTION Follow all safety codes.

  • Page 47: Checking System Charge

    Units are shipped with Checking System Charge — full operating charge. If recharging is necessary: 1. Insert thermometer bulb in insulating rubber sleeve on liquid line near filter drier. Use a digital thermometer for all temperature measurements. DO NOT use a mercury or dial-type thermometer.
  • 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 POSSIBLE CAUSE Thermostat wiring Check G wiring at heat pump. Jumper G and R for fan operation. Check Y and W wiring at heat pump. Jumper Y and R for compressor operation in Test mode. Fan motor relay Jumper G and R for fan operation. Check for line voltage across BR contacts.

  • Page 50: 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 51 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 52 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 53 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 54 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 55: 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 58 Copyright 2009 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500052-01 Printed in U.S.A. Form 50PEC-2SI Pg 58 7-09 Replaces: 50PEC-1SI...

  • 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 = SATURATED CONDENSING TEMPERATURE – LIQUID LINE TEMPERATURE (DEG F) *Use 500 for water, 485 for antifreeze. Copyright 2009 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500052-01 Printed in U.S.A.

This manual is also suitable for:

Aquazone 50pec09Aquazone 50pec12Aquazone 50pec15Aquazone 50pec18

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