Carrier 50VS specifications Contents, Safety Considerations, General

AQUAZONE™

50VS Vertical Stack Water Source Heat Pump with PURON® (R-410A) Refrigerant

Installation, Start-Up, and Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . .1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Step 2 — Check Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

•STORAGE

•PROTECTION

•INSPECT UNIT

Step 3 — Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Step 4 — Install Drywall . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Step 5 — Install Cabinet and Riser. . . . . . . . . . . . . . . . . . .8

•SYSTEM PIPING ARRANGEMENTS

•RISER MATERIAL, SIZING, AND INSTALLATION

•RISER EXPANSION

•RISER CONNECTIONS

•COMMERCIAL WATER LOOP APPLICATION

•GROUND-LOOP HEAT PUMP APPLICATION

•OPEN-LOOP GROUND WATER SYSTEMS

Step 6 — Wire Field Power Supply Connections . . . .13

•ELECTRICAL-LINE VOLTAGE

•POWER CONNECTION

•208/230-VOLT OPERATION

Step 7 — Wire Field Control Connections . . . . . . . . . .15 Step 8 — Clean and Flush System. . . . . . . . . . . . . . . . . .15 Step 9 — Install Hose Kit . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Step 10 — Install Chassis into the Cabinet . . . . . . . . .16 Step 11 — Install Return Panel . . . . . . . . . . . . . . . . . . . . .16 Step 12 — Install Supply Grille . . . . . . . . . . . . . . . . . . . . .17

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17,18 System Checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . . . . . . 18,19

DIP Switch Settings and Operation . . . . . . . . . . . . . . . . .18

Standard 24-vac Sequence of Operation. . . . . . . . . . . .19

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19,20

Operating Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Lockout Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Water Coil Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Fan Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Evaporator Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Refrigerant System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21,22

Lockout Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . .CL1,CL2

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

components. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance func- tions such as cleaning coils and filters and replacing filters. All other operations should be performed by trained service per- sonnel. 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.

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 a local 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.

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and the National Electrical Code (NEC) for special installation requirements.

Understand the signal words — DANGER, WARNING, and CAUTION. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards that could result in personal inju- ry or death. CAUTION is used to identify unsafe practices, which would result in minor personal injury or product and property damage.

Recognize safety information. This is the safety-alert symbol ( ). When this symbol is displayed on the unit and in instructions or manuals, be alert to the potential for personal injury.

WARNING

Electrical shock can cause personal injury or death. Before installing or servicing system, always turn off main power to system. There may be more than one disconnect switch. Turn off accessory heater power if applicable.

GENERAL

This installation and start-up instructions literature is for Aquazone™ water source heat pump systems.

The 50VS water source heat pump (WSHP) is a vertically stacked unit with electronic controls designed for year-round cooling and heating.

IMPORTANT: The installation of water source heat pump units and all associated components, parts, and accessories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes. It is the responsi- bility of the installing contractor to determine and comply with ALL applicable codes and regulations.

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

Catalog No. 04-53500046-01 Printed in U.S.A. Form 50VS-1SI Pg 1 311 10-08 Replaces: New