Table of Contents
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CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Step 1 - Examine Package Contents . . . . . . . . . 1
Step 2 - Install Piping . . . . . . . . . . . . . . . . . . . . . . . 2
• INSTALL BALL AND SOLENOID VALVES
Step 3 - Dehydrate and Recharge Circuit . . . . . 3
Step 4 - Install Control Wiring . . . . . . . . . . . . . . . 4
Step 5 - Configure Unit for Minimum
Load Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 6 - Test Minimum Load Relay
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ball Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning equip-
ment can be hazardous due to system pressures, electrical
components, and equipment location.
Only trained, qualified installers and service technicians
should install, start up, and service this equipment.
When working on air-conditioning equipment, observe pre-
cautions in the literature and on tags, stickers, and labels at-
tached to the equipment.
Table 1 - Accessory Package Contents and Field-Supplied Material
ACCESSORY PACKAGE
COMPONENTS
Solenoid Valve
Ball Valve
Swagelok Connector
Junction Box
Junction Box Cover
Watertight Conduit
5
⁄
-in. OD Copper Tubing, Wiring, Conduit,
8
Thread Sealant, Electrical Supplies
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 2
PC 903
Tab
5c
Installation Instructions
Part Nos. 30HX-900---008, 30GX-900---004
(60 Hz - 115-v Control)
Part Nos. 30HX-900---009, 30GX-900---005
(50 or 60 Hz - 230-v Control)
Page
30HX-900---008
(2) EF23JX212
(2) EP71BA201
(4) DC09CA307
-
-
-
FIELD SUPPLIED MATERIAL - REQUIRED PARTS (Ordered Separately)
Catalog No. 563-056
Printed in U.S.A.
Minimum Load Control Accessory
Follow all safety codes. Wear safety glasses and work gloves.
Use care in handling equipment.
Be sure power to equipment is shut off before perform-
ing maintenance or service.
IMPORTANT: When removing refrigerant, use an
approved refrigerant recovery device. Do not vent re-
frigerant into the atmosphere.
INTRODUCTION
The minimum load control accessory allows 30HX and
30GX chillers to have their capacities decreased below the
standard fully unloaded condition. The accessory provides
more precise control of leaving fluid temperature during light
load conditions.
The 30GX and 30HX chillers have a dual-circuit design.
Each minimum load control accessory package contains the
items required for both circuits. Because of an automatic lead/
lag feature on the chillers, the accessory should be installed
on both circuits.
Step 1 - Examine Package Contents -
age includes solenoid valves, ball valves, Swagelok con-
nectors, and instructions. The kit for 30GX units also con-
tains a junction box, junction box cover, and conduit. Examine
each item. If any part is damaged or missing, file a claim
immediately with the shipper. See Table 1 for accessory pack-
age contents and field-supplied material.
ACCESSORY PART NUMBER
30HX-900---009
30GX-900---004
(2) EF23JX231
(2) EF23JX212
(2) EP71BA201
(2) EP71BA201
(4) DC09CA307
(2) DC09CA307
-
HX30FZ001
-
HX38ZZ001
-
99CD2121AC028
Field Supplied
Form 30GX,HX-2SI
30GX080-176
30HX076-271
50/60 Hz
INSTALLATION
30GX-900---005
(2) EF23JX231
(2) EP71BA201
(2) DC09CA307
HX30FZ001
HX38ZZ001
99CD2121AC028
Pg 1
1-97
Replaces: New
Pack-
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Table of Contents
Related Manuals for Carrier 30GX080-176
Summary of Contents for Carrier 30GX080-176
-
Page 1: Table Of Contents
ACCESSORY PART NUMBER 30HX-900---009 (2) EF23JX231 (2) EP71BA201 (4) DC09CA307 — — — — — — Printed in U.S.A. Form 30GX,HX-2SI 30GX080-176 30HX076-271 50/60 Hz INTRODUCTION INSTALLATION Pack- 30GX-900---004 30GX-900---005 (2) EF23JX212 (2) EF23JX231 (2) EP71BA201 (2) EP71BA201 (2) DC09CA307... -
Page 2: Installation
Step 2 — Install Piping Shut off all power to the unit, then lock out and safety- tag all disconnects before proceeding with installation. Remove refrigerant charge from circuits using an ap- proved refrigerant recovery device before proceeding with installation. NOTE: The units have 2 circuits. -
Page 3: Connect Piping
If this does not fix the leak, the connection must be reinstalled using a new ferrule and backup ring in the fitting. Contact your Carrier repre- sentative for assistance in locating these parts. After leak testing, evacuate, dehydrate, and recharge the circuit using an approved refrigerant recovery device. -
Page 4: Step 4 - Install Control Wiring
Step 4 — Install Control Wiring Be sure all power to the unit is off before proceeding. Lock out and safety-tag all disconnects. Wires between field-installed components and unit control box must be enclosed in field-supplied conduit. Follow all local codes and NEC (National Electrical Code, U.S.A.). Wire size must be no. - Page 5 30GX080-176 30HX076-271 LEGEND MLC — Minimum Load Control — Terminal Block NOTE: See Fig. 3 for locations of junction boxes on unit. Fig. 4 — Minimum Load Control Wiring...
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Page 6: Load Control
Step 5 — Configure Unit for Minimum Load Con- trol — Once the piping installation and wiring installation are complete, the chiller must be configured for minimum load control operation. This may be done using the unit key- pad (HSIO-2). Set the LOCAL/OFF switch in the OFF position. -
Page 8: Form 30Gx,Hx-2Si Pg
Copyright 1997 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 2 PC 903 Catalog No. 563-056 Printed in U.S.A. Form 30GX,HX-2SI Pg 8 1-97 Replaces: New...