Carrier Water Source Heat Pump Manual for 50RHR

AQUAZONE™

50RHC,RVC,RHR,RHS, RVR,RVS,RDS006-060 Water Source Heat Pump Units

Installation, Start-Up, and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2

Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

•STORAGE

•PROTECTION

•INSPECT UNIT

Step 3 — Unit Location. . . . . . . . . . . . . . . . . . . . . . . . . . 14

• FIELD CONVERSION OF DISCHARGE AIR

Step 4 — Mounting the Unit . . . . . . . . . . . . . . . . . . . . . 15

•HORIZONTAL UNITS

•VERTICAL UNITS

Step 5 — Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . 15

•SOUND ATTENUATION

•EXISTING DUCT SYSTEM

Step 6 — Condensate Drain . . . . . . . . . . . . . . . . . . . . . 16

•HORIZONTAL UNITS

•VERTICAL UNITS

•VENTING

Step 7 — Piping Connections . . . . . . . . . . . . . . . . . . . 16

•WATER LOOP APPLICATIONS

•GROUND-WATER APPLICATIONS

•GROUND-LOOP APPLICATIONS

Step 8 — Field Power Supply Wiring . . . . . . . . . . . . 18

•POWER CONNECTION

•SUPPLY VOLTAGE

•208-VOLT OPERATION

Step 9 — Field Control Wiring . . . . . . . . . . . . . . . . . . . 18

•THERMOSTAT CONNECTIONS

•WATER FREEZE PROTECTION

•AIR COIL FREEZE PROTECTION

•ACCESSORY CONNECTIONS

•WATER SOLENOID VALVES

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-30

System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

PSC Blower Speed Selection . . . . . . . . . . . . . . . . . . 27

FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . 30-32

C Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 30

C Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 30

D Control Jumper Settings . . . . . . . . . . . . . . . . . . . . 30

D Control DIP Switches . . . . . . . . . . . . . . . . . . . . . . . 30

Units with Modulating Hot Water Reheat

(HWR) Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 D Control Accessory Relay Configurations . . . . . 32 Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 32 Outside Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 32

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-36

Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 33

Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 33

Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 34

Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Page

Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 36

Ground Coupled, Closed Loop and Plateframe Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 36

OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36,37 Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Units with Aquazone Complete C Control . . . . . . . 36 Units with Aquazone Deluxe D Control . . . . . . . . . . 36 Units with HWR Option. . . . . . . . . . . . . . . . . . . . . . . . . . 37 SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37,38 Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Aquazone Deluxe D Control LED Indicators . . . . . 38 SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-40 Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 38 Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Fan Motors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . 39 Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Checking System Charge . . . . . . . . . . . . . . . . . . . . . 39 Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 40 Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 40 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 40-42 Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

50RHC,RVC,RHR,RHS,RVR,RVS,RDS 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 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 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 dam- age. Consult a qualified installer, service agency, or your distrib- utor or branch for information or assistance. The qualified in- staller or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instruc- tions packaged with the kits or accessories when installing.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book	1	4	Catalog No. 04-53500007-01 Printed in U.S.A.	Form 50R-5SI	Pg 1	6-07	Replaces: 50R-4SI
Tab	5a	5a