Carrier AQUAZONE 50PCH User Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500094-01 Printed in U.S.A. Form 50PC-3SI Pg 1 3-11 Replaces: 50PC-2SI
Installation, Start-Up, and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
•PROTECTION
•INSPECT UNIT
Step 3 — Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
• FIELD CONVERSION OF DISCHARGE AIR
Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 8
• HORIZONTAL UNITS
• VERTICAL UNITS
Step 5 — Check Duct System . . . . . . . . . . . . . . . . . . . . 8
• SO U ND AT TE N U AT I O N
• EXISTING DUCT SYSTEM
Step 6 — Install Condensate Drain . . . . . . . . . . . . . . . 8
• HORIZONTAL UNITS
• VERTICAL UNITS
• VENTING
Step 7 — Pipe Connections . . . . . . . . . . . . . . . . . . . . . . 9
• WATER LOOP APPLICATIONS
• GROUND LOOP APPLICATIONS
• INSTALLATION OF SUPPLY AND RETURN HOSE
KIT
Step 8 — Wire Field Power Supply . . . . . . . . . . . . . . 10
• POWER CONNECTION
• SUPPLY VOLTAGE
• 208-VOLT OPERATION
• 460-VOLT OPERATION
Step 9 — Wire Field Controls. . . . . . . . . . . . . . . . . . . . 20
• THERMOSTAT CONNECTIONS
• WATER FREEZE PROTECTION
• AIR COIL FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
• WSHP OPEN WIRING
PRE-START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22,23
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
PSC Blower Speed Selection . . . . . . . . . . . . . . . . . . 22
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .24,25
Complete C Control Jumper Settings. . . . . . . . . . . 24
Complete C Control DIP Switches. . . . . . . . . . . . . . 24
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 24
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 24
Deluxe D Control Accessory Relay
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 25
Outside Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 25
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-33
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 26
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 26
Page
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 30
Unit Start-Up with WSHP Open Controls . . . . . . . . 30
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 32
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-36
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Units with Aquazone Complete C Control . . . . . . . 33
Units with Aquazone Deluxe D Control
. . . . . . . . . . 33
Units with WSHP Open Multiple Protocol. . . . . . . . 33
COMPLETE C AND DELUXE D BOARD
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-38
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
WSHP Open Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 36
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Aquazone Deluxe D Control LED Indicators . . . . . 37
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-40
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 38
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Fan Motors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 38
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 39
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 40
Replacing the WSHP Open Controller’s
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 40-42
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
WSHP Open Controller . . . . . . . . . . . . . . . . . . . . . . . . . . 40
APPENDIX A — WSHP OPEN SCREEN
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 43-48
50PCH,PCV START-UP CHECKLIST . . . . . CL-1, CL-2
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
precautions in the literature, tags and labels attached to the unit,
and other safety precautions that may apply.
IMPORTANT: Read the entire instruction manual before
starting installation.
AQUAZONE™
50PCH,PCV006-060
Compact High-Efficiency Water Source Heat Pumps
with PURON
®
Refrigerant (R-410A)

Carrier AQUAZONE 50PCH Specifications

General

Brand	Carrier
Model	AQUAZONE 50PCH
Category	Heat Pump
Language	English

Summary

SAFETY CONSIDERATIONS

INSTALLATION

Covers the steps and procedures for installing the unit at the jobsite.

Step 1 - Check Jobsite

Step 2 - Check Unit

Procedures for inspecting the unit upon arrival for damage and completeness.

Step 3 - Locate Unit

Step 4 - Mount the Unit

Step 6 - Install Condensate Drain

Step 7 - Pipe Connections

Step 8 - Wire Field Power Supply

Instructions for making line voltage connections, including voltage range and phase imbalance checks.

Step 9 - Wire Field Controls

Guidance on wiring thermostats, freeze protection, and accessory connections.

PRE-START-UP

START-UP

Unit Start-Up Cooling Mode

Unit Start-Up Heating Mode

WSHP Open Controls

OPERATION

Units with Aquazone™ Complete C Control

Units with Aquazone™ Deluxe D Control

Units with WSHP Open Multiple Protocol

Covers WSHP Open controller operations for cooling, heating, economizer, and IAQ control.

COMPLETE C AND DELUXE D BOARD SYSTEM TEST

WSHP Open Test Mode

SERVICE

Refrigerant System

Air Coil Cleaning

Checking System Charge

Details on how to check the refrigerant charge using superheat and subcooling measurements.

Refrigerant Charging

Safety precautions and procedures for adding or removing refrigerant to achieve the correct charge.

Air Coil Fan Motor Removal

TROUBLESHOOTING

General guidance for troubleshooting WSHP issues, including thermistors and control sensors.