Carrier 50VQP084-300 specifications Contents, Safety Considerations

AQUAZONE™ 50VQP084-300 Vertical Large Capacity Water Source Heat Pumps

with PURON® Refrigerant (R-410A) 50 Hz

Installation, Start-Up, and

Service Instructions

CONTENTS

Page

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

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

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

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

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

•STORAGE

•PROTECTION

•INSPECT UNIT

Step 3 — Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 6

•DISCHARGE CONFIGURATION CONVERSION

•CONTROL BOX/MOTOR ACCESS

CONFIGURATION CONVERSION

Step 5 — Check Duct System . . . . . . . . . . . . . . . . . . . . 9

•SOUND ATTENUATION

•EXISTING DUCT SYSTEM

Step 6 — Install Condensate Drain . . . . . . . . . . . . . . . 9

• VENTING

Step 7 — Pipe Connections . . . . . . . . . . . . . . . . . . . . . 10

•WATER LOOP APPLICATIONS

•GROUND-LOOP APPLICATIONS

•GROUND-WATER APPLICATIONS

Step 8 — Wire Field Power Supply . . . . . . . . . . . . . . 11

•POWER CONNECTION

•SUPPLY VOLTAGE

•420-VOLT OPERATION

Step 9 — Wire Field Controls. . . . . . . . . . . . . . . . . . . . 17

•THERMOSTAT CONNECTIONS

•WATER FREEZE PROTECTION

•AIR COIL FREEZE PROTECTION

•ACCESSORY CONNECTIONS

•WATER SOLENOID VALVES

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-32

System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Airflow and External Static Pressure . . . . . . . . . . . 18

FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .33,34

Complete C Control Jumper Settings. . . . . . . . . . . 33

Complete C Control DIP Switches. . . . . . . . . . . . . . 33

Deluxe D Control Jumper Settings . . . . . . . . . . . . . 33

Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 33

Deluxe D Control Accessory Relay

Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34-36

Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Start Up System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 34

Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 35

Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 35

Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Page

Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

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 . . . . . . . 37 Units with Aquazone Deluxe D Control . . . . . . . . . . 37

COMPLETE C AND DELUXE D BOARD SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-39

Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Aquazone Deluxe D Control LED Indicators . . . . . 39

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39,40

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 39

Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 39

Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 40

Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 40

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 40-43

Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

50VQP 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, main- tenance, 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 accessories when modifying this product. Refer to the individ- ual instructions 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.

Catalog No. 04-53500080-01 Printed in U.S.A. Form 50VQP-C1SI Pg 1 11-10 Replaces: New