Carrier Aquazone 50HQP Series User Manual

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 50HQP-VQP-4SI Pg 1 10-2020 Replaces: 50HQP-VQP-2SI
Installation, Start-Up, and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 3
• INSPECTION
• STORAGE
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . 3
• HO
RIZONTAL UNITS (50HQP)
• VERTICAL UNITS (50VQP)
• INSTALLATION GUIDELINES (ALL UNITS)
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 3
• INSPECT UNIT
Step 3 — Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . 12
Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . 12
• MOUNTING VERTICAL UNITS
• MOUNTING HORIZONTAL UNITS
Step 5 — Check Duct System . . . . . . . . . . . . . . . . . 13
Step 6 — Install Condensate Drain . . . . . . . . . . . . . 13
Step 7 — Pipe Connections . . . . . . . . . . . . . . . . . . . 14
• UNITS WITH WATERSIDE ECONOMIZER OR
BOILERLESS HEAT CONTROL
• WELL WATER SYSTEMS (50°F EWT [ENTERING
WATER TEMPERATURE] MINIMUM)
• COOLING TOWER/BOILER APPLICATION
• EARTH COUPLED SYSTEMS
Step 8 — Wire Field Power Supply . . . . . . . . . . . . . 17
• CO
NTROL TRANSFORMER SETTING FOR 208V
UNITS
• 50HQP WITH SUPPLY FAN VFD
Step 9 — Wire Control Connections . . . . . . . . . . . . 32
• 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 . . 32
• UNIT PROTECTION MODULE (UPM)
• FREEZE SENSOR
• UPM DIP SWITCH SETTINGS
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
• AIR COIL
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . . . . 34
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
O
perating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
• ENVIRONMENT
• POWER SUPPLY
• UNIT STARTING CONDITIONS
Start Up System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Scroll Compressor Rotation . . . . . . . . . . . . . . . . . . .34
Flow Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . .38
Ground Coupled, Closed Loop and Plateframe Heat
Exchanger Well Systems . . . . . . . . . . . . . . . . . . .38
OPERATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Un
its with Aquazone™ Complete C Control . . . . . .38
• STANDBY
• COOLING
• HEATING STAGE 1
• HEATING STAGE 2
• LOCKOUT MODE
• LOCKOUT WITH EMERGENCY HEAT
• EMERGENCY HEAT
Units with Aquazone Deluxe D Control . . . . . . . . . .39
• STANDBY/FAN ONLY
• HEATING STAGE 1
• EMERGENCY HEAT
• COOLING STAGE 2
Retry Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Units with WSHP Open Controls with UPM Board . 39
• COOLING
• REVERSE CYCLE HEATING
• TWO POSITION OA DAMPER
• MODULATING OA DAMPER WITH DCV
• AUXILIARY MODULATING HOT WATER / STEAM
HEATING REHEAT
• TWO-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
• TWO-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
Aquazone™
50HQP,VQP 072-360
Large Capacity Water Source Heat Pumps

Carrier Aquazone 50HQP Series Specifications

General

Brand	Carrier
Model	Aquazone 50HQP Series
Category	Heat Pump
Language	English

Summary

Safety Considerations

Pre-Installation Procedures

Pre-installation checks, inspection, and storage guidelines.

Installation Procedures

Check Unit Upon Arrival

Procedures for inspecting the unit upon arrival.

Locate Unit

Guidance on selecting the proper location for unit installation.

Mount the Unit

Instructions for mounting vertical and horizontal units.

Install Condensate Drain

Procedures for installing the condensate drain system.

Pipe Connections

Guidelines for connecting water piping to the unit.

Wire Field Power Supply

Instructions for wiring the field power supply to the unit.

Wire Control Connections

Guidance on wiring control connections for various unit controls.

Configure Unit Control Components

Steps to configure unit control components like UPM.

Pre-Start-Up Procedures

System Checkout

Procedures to follow after installation but before system start-up.

Start-Up Procedures

Operating Limits

Factors determining unit operating limits and their ranges.

Unit Starting Conditions

Conditions under which units start and operate.

Scroll Compressor Rotation

Procedure to verify correct compressor rotation direction.

Operation Modes

Aquazone Complete C Control Operation

Operation modes for units with Complete C control.

WSHP Open Controls Features

Advanced Unit Controls

Automatic Fan Speed Control

Control of fan speed based on conditions.

Modulating Water Economizer Control

Modulating water valve control for economizer.

Two-Position Water Economizer Control

Supply Air Temperature Monitoring/Control/Alarm

Unit Alarms and Monitoring

Dehumidification Control

Space Temperature Alarms

Condenser Water Temperature Monitoring/Control/Alarm

High Condensate / Overflow Alarm

Filter Status Alarm

Compressor Fault/Lockout Alarm

Detection and response to compressor faults.

Insufficient Ventilation Alarm

Relative Humidity Alarm

Service Procedures

Refrigerant System Service

Condenser Cleaning

Troubleshooting