Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53090040-01 Printed in U.S.A. Form No. 09XC-7SI Pg 1 9-23 Replaces: 09XC-6SI
Installation, Start-Up and
Service Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Step 1 — Complete Pre-Installation Checks . . . . . . 5
Step 2 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . 5
Step 3 — Complete Refrigerant Piping . . . . . . . . . . . 6
Step 4 — Install Ductwork . . . . . . . . . . . . . . . . . . . . . 7
Step 5 — Insulate the Unit . . . . . . . . . . . . . . . . . . . . . 8
Step 6 — Complete Electrical Connections . . . . . . . 8
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
System Evacuation and Dehydration . . . . . . . . . . . . 9
Charging Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Low Ambient Operation (Factory Installed) . . . . . . . 9
Configuration of Low Ambient Kit
(Field Installation) . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ACH580 Low Ambient Operation Parameters . . . . 10
Check Operation of Condenser Fan Motor
Controls and Rotation of Fans . . . . . . . . . . . . . . 11
Adjust Fan Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Cleaning Condenser Coils . . . . . . . . . . . . . . . . . . . . 17
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Condenser Fan Adjustment . . . . . . . . . . . . . . . . . . . 17
Pulley Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Belt Tension Adjustment . . . . . . . . . . . . . . . . . . . . . 17
Changing Fan Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fan Bearing Replacement . . . . . . . . . . . . . . . . . . . . 17
Concentric Alignment . . . . . . . . . . . . . . . . . . . . . . . . 17
Condenser Motor Starter Setting (after Lockout/
Tagout) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 19
APPENDIX A — VFD INFORMATION . . . . . . . . . . . . 22
APPENDIX B — ACH580 BRANCH CIRCUIT
PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . CL-1
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning components
and equipment can be dangerous. Only trained, qualified installers
and service mechanics should install, start up, and service this
equipment.
When working on the equipment, observe precautions in the liter-
ature and on tags, stickers, and labels attached to the equipment.
Follow all safety codes. Wear safety glasses and work gloves.
.
.
.
WARNING
Electrical shock can cause personal injury and death. Shut off
all power to this equipment during installation and service.
There may be more than one disconnect switch. Tag all
disconnect locations to alert others not to restore power until
work is completed.
CAUTION
Use care in handling, rigging, and setting bulky equipment.
Personal injury could result.
WARNING
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and goggles
and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from system
using both high-pressure and low pressure ports.
c. Traces of vapor should be displaced with nitrogen and
the work area should be well ventilated. Refrigerant in
contact with an open flame produces toxic gases.
d. Cut component connection tubing with tubing cutter and
remove component from unit. Use a pan to catch any oil
that may come out of the lines and as a gauge for how
much oil to add to the system.
e. Carefully un-sweat remaining tubing stubs when neces-
sary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal inju-
ry or death.
Omnizone™
09XC06-24
Remote Air-Cooled Condenser Units
