Table of Contents
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• INSPECTION
• STORAGE
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . 2
• HORIZONTAL UNITS (50PCH)
• VERTICAL UNITS (50PCV)
• INSTALLATION GUIDELINES (ALL UNITS)
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 3
• INSPECT UNIT
Step 3 — Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . 8
• PROTECTION
Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . 8
• DUCT FLANGES
• HORIZONTAL UNITS (50PCH)
• VERTICAL UNITS (50PCV)
Step 5 — Check Duct System . . . . . . . . . . . . . . . . . . 9
• HORIZONTAL SUPPLY AIR CONFIGURATION
CONVERSION
Step 6 — Install Condensate Drain . . . . . . . . . . . . . 10
Step 7 — Pipe Connections . . . . . . . . . . . . . . . . . . . 10
• WATER LOOP APPLICATIONS
• GROUND LOOP APPLICATIONS
• INSTALLING SUPPLY AND RETURN HOSE KIT
• UNITS WITH WATERSIDE ECONOMIZER OR
BOILERLESS HEAT CONTROL
• AQUASTAT BULB INSTALLATION
Step 8 — Wire Field Power Supply . . . . . . . . . . . . . 11
• HIGH VOLTAGE
Step 9 — Wire Control Connections . . . . . . . . . . . . 22
• COMPLETE C AND DELUXE D CONTROL
• THERMOSTAT AND DDC SENSORS
• HOT GAS REHEAT CONTROL
• AUXILIARY RELAY (DELUXE D ONLY)
• ENERGY MANAGEMENT SWITCH (DELUXE D
ONLY)
• BOILERLESS HEAT CONTROL (DELUXE D ONLY)
• ALARM OUTPUT (ALL UNITS)
• WSHP OPEN CONTROL
• CONTROL TRANSFORMER
Step 10 — Configure Unit Control Components . . 23
• UNIT PROTECTION MODULE (UPM)
• WATERSIDE ECONOMIZER
• BOILERLESS HEAT CONTROL (DELUXE D ONLY)
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
• CLEAN AIR COIL
Set Blower Motor Speed . . . . . . . . . . . . . . . . . . . . . . 25
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500266-01
Installation, Start-Up, and
Service Instructions
Printed in U.S.A.
Compact Water Source Heat Pumps
with Puron
• PERMANENT SPLIT CAPACITOR (PSC) MOTOR
• CONSTANT TORQUE (ECM) MOTOR
Page
System Flushing and Filling . . . . . . . . . . . . . . . . . . .29
System Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
• FLOW VERIFICATION
• FLOW REGULATION
• ANTIFREEZE
• FREEZE PROTECTION SELECTION
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
• ENVIRONMENT
• POWER SUPPLY
• UNIT STARTING CONDITIONS
Start-Up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . .30
• SCROLL COMPRESSOR ROTATION
• COOLING MODE START-UP
• HEATING MODE START-UP
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Unit Protection Module (UPM) . . . . . . . . . . . . . . . . .39
Units with Complete C or Deluxe D Controls . . . . .39
• STANDBY
• COOLING
• HOT GAS REHEAT (OPTIONAL)
• WATERSIDE ECONOMIZER (OPTIONAL)
• TWO WAY WATER FLOW CONTROL VALVE
(OPTIONAL)
• BOILERLESS HEAT (DELUXE D ONLY)
• PUMP/VALVE RELAY (DELUXE D ONLY)
Units with WSHP Open Controls . . . . . . . . . . . . . . .39
• COOLING
• REVERSE CYCLE HEATING
• TWO POSITION OA DAMPER
• MODULATING OA DAMPER WITH DCV
• AUXILIARY MODULATING HOT WATER / STEAM
HEATING REHEAT
• 2-POSITION HOT WATER / STEAM HEATING
REHEAT
• SINGLE STAGE ELECTRIC AUXILIARY HEAT
• AUTOMATIC FAN SPEED CONTROL
• FAN SPEED CONTROL - DURING HEATING
• FAN SPEED CONTROL - DURING COOLING
• MODULATING WATER ECONOMIZER CONTROL
• 2-POSITION WATER ECONOMIZER CONTROL
• POWER FAIL RESTART DELAY
• SUPPLY AIR TEMPERATURE MONITORING /
CONTROL / ALARM
• DEHUMIDIFICATION
• SPACE TEMPERATURE ALARMS
• CONDENSER WATER TEMPERATURE MONITORING
/ CONTROL / ALARM
• HIGH CONDENSATE / OVERFLOW ALARM
• FILTER STATUS ALARM
• COMPRESSOR FAULT/LOCKOUT ALARM
• INSUFFICIENT VENTILATION ALARM
• RELATIVE HUMIDITY ALARM
• TIME SCHEDULES
Form 50PC-6SI
Pg 1
Aquazone™
50PCH, PCV 007-070
®
Refrigerant (R-410A)
1-2020
Replaces: 50PC-5SI
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Table of Contents
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Summarization of Contents
INSTALLATION
Step 1 - Check Jobsite
Preparing the installation site and checking unit for suitability.
Step 2 - Check Unit
Inspecting the unit for damage, verifying model, and checking components.
Step 3 - Locate Unit
Positioning the unit in an indoor area with adequate access and space.
Step 4 - Mount the Unit
Mounting the unit using appropriate methods such as hanging brackets or secure placement.
Step 8 - Wire Field Power Supply
Connecting the main power supply according to electrical codes and diagrams.
Step 9 - Wire Control Connections
Connecting thermostat, DDC sensors, and control components for proper operation.
START-UP
Start-Up Procedure
Step-by-step guide for initiating unit operation.
Cooling Mode Start-Up
Procedures for starting the unit in cooling mode.
Heating Mode Start-Up
Procedures for starting the unit in heating mode.
TROUBLESHOOTING
UNIT PROTECTION MODULE (UPM)
Overview of the UPM board and its functions.
Freeze Sensor
Function and settings of the freeze protection sensors.
TXV FAILURE
Common TXV failures and diagnosis.
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