Carrier aquazone 50RTG- User Manual

Carrier aquazone 50RTG

Carrier aquazone 50RTG– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 3 – Step 3 — Location of Unit —; Table 1 — Physical Data — AquazoneTM 50RTG03-20 Units
  • Page 5 – Supply
  • Page 6 – Fig. 3 — 50RTG Curb Installation
  • Page 7 – Step 7 — Electrical Wiring; Table 2 — Water Quality Guidelines
  • Page 8 – 0RTG03-07 WITH ECONOMIZER AND COMPLETE C CONTROLLER
  • Page 9 – Table 3 — 50RTG Electrical Data; Table 4 — 50RTG03 Blower Performance
  • Page 12 – Table 9 — 50RTG10 Blower Performance
  • Page 14 – Fig. 5 — Low Voltage Field Wiring; Fig. 6 — Typical Aquazone Control Board
  • Page 16 – If switch 8 is set for 50 F, then the compressor will be used; Table 13 — DIP Switch Block S2 —; D Control Accessory Relay Configurations —; If relay is configured; Operating Limits; line power to all heat pump units.
  • Page 17 – Table 15 — Operating Limits — 50RTG Units; Scroll Compressor Rotation —
  • Page 18 – Table 16 — 50RTG Coaxial Water Pressure Drop; Antifreeze —; Table 18 — Antifreeze Percentages by Volume; Cooling Tower/Boiler Systems —
  • Page 20 – Retry Mode —
  • Page 22 – Fig. 8 — Gravity Flow Method
  • Page 23 – Fig. 11 — FP1 and FP2 Thermistor Location
  • Page 24 – Table 22 — Troubleshooting
  • Page 28 – HEATING CYCLE ANALYSIS; SUPERHEAT
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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 111

Catalog No. 535-004

Printed in U.S.A.

Form 50R-2SI

Pg 1

8-02

Replaces: New

Book 1

4

Tab

5a 5a

Installation, Star t-Up, and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . .1,2

GENERAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Step 1 — Check Jobsite

. . . . . . . . . . . . . . . . . . . . . . . . 2

Step 2 — Check Unit

. . . . . . . . . . . . . . . . . . . . . . . . . . . 2

• STORAGE
• PROTECTION
• INSPECT UNIT

Step 3 — Location of Unit

. . . . . . . . . . . . . . . . . . . . . . . . 3

Step 4 — Mounting the Unit

. . . . . . . . . . . . . . . . . . . . . . 6

Step 5 — Condensate Drain

. . . . . . . . . . . . . . . . . . . . . . 6

Step 6 — Piping Connections

. . . . . . . . . . . . . . . . . . . . 6

• WATER LOOP APPLICATIONS
• GROUND-WATER APPLICATIONS
• GROUND-LOOP APPLICATIONS

Step 7 — Electrical Wiring

. . . . . . . . . . . . . . . . . . . . . . . . 7

• SUPPLY VOLTAGE
• 208-VOLT OPERATION
• BLOWER SELECTION

Step 8 — Low Voltage Wiring

. . . . . . . . . . . . . . . . . . . . 14

• THERMOSTAT CONNECTIONS
• WATER FREEZE PROTECTION
• AIR COIL FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES

PRE-START-UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14,15

System Checkout

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

FIELD SELECTABLE INPUTS

. . . . . . . . . . . . . . . .15,16

C Control Jumper Settings

. . . . . . . . . . . . . . . . . . . . 15

C Control DIP Switches

. . . . . . . . . . . . . . . . . . . . . . . 15

D Control Jumper Settings

. . . . . . . . . . . . . . . . . . . . 15

D Control DIP Switches

. . . . . . . . . . . . . . . . . . . . . . . 15

D Control Accessory Relay Configurations

. . . . . 16

Water Valve (Slow Opening)

. . . . . . . . . . . . . . . . . . . 16

Outside Air Damper (OAD)

. . . . . . . . . . . . . . . . . . . . 16

START-UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-18

Operating Limits

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Scroll Compressor Rotation

. . . . . . . . . . . . . . . . . . . . . 17

Unit Start-Up Cooling Mode

. . . . . . . . . . . . . . . . . . . . . 17

Unit Start-Up Heating Mode

. . . . . . . . . . . . . . . . . . . . . 17

Flow Regulation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Flushing

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Antifreeze

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Cooling Tower/Boiler Systems

. . . . . . . . . . . . . . . . . . 18

Ground Coupled, Closed Loop and Plateframe

Heat Exchanger Well Systems

. . . . . . . . . . . . . . . . 18

Page

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Power Up Mode

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Units with Aquazone™ Complete C Control

. . . . . 19

Units with Aquazone Deluxe D Control

. . . . . . . . . . 19

SYSTEM TEST

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19,20

Test Mode

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Retry Mode

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Aquazone Deluxe D Control LED Indicators

. . . . . 20

SERVICE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22

Filters

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Water Coil

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Condensate Drain Pans

. . . . . . . . . . . . . . . . . . . . . . . . . 21

Refrigerant System

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Condensate Drain Cleaning

. . . . . . . . . . . . . . . . . . . . . 21

Air Coil Cleaning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Condenser Cleaning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Checking System Charge

. . . . . . . . . . . . . . . . . . . . . . . 22

Refrigerant Charging

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Air Coil Fan Motor Removal

. . . . . . . . . . . . . . . . . . . . . 22

TROUBLESHOOTING

. . . . . . . . . . . . . . . . . . . . . . . . . 22-25

Thermistor

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Control Sensors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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 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.

IMPORTANT: Read the entire instruction manual before
starting installation.

Rooftop Water Source Heat Pump Units

50RTG

TM

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Summary

Page 3 - Step 3 — Location of Unit —; Table 1 — Physical Data — AquazoneTM 50RTG03-20 Units

3 INSPECT UNIT — To prepare the unit for installation, com-plete the procedures listed below: 1. Compare the electrical data on the unit nameplate with ordering and shipping information to verify that thecorrect unit has been shipped. 2. Verify that the unit is the correct model for the entering wat...

Page 5 - Supply

5 C A B 14.00 (REF) 14.00 (REF) STRUCTURAL SUPPOR T CURB W ALL ROOF DECK/ROOFING BASE P AN OF UNIT FLASHING 3-7/8" (TYP) REQUIREMENTS BY CONTRACT OR'S HEIGHT DETERMINED (TYP) G H K J E F (FIELD SUPPLIED) TRANSITION DET AIL 14-15/16 23.000 2.00 TYP . 3.000 3.000 TRANSITION SUPPL Y AIR TRANSITION ...

Page 6 - Fig. 3 — 50RTG Curb Installation

6 Step 4 — Mounting the Unit — For proper opera- tion, units must be mounted on a roof curb as shown in Fig. 3.Follow these guidelines when installing the roof curb: 1. Set unit on curb.2. Align unit so that its return and supply air direction match the return and supply air opening in the roof curb...

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