Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53300176-01 Printed in U.S.A. Form 30HX-16SI Pg 1 12-17 Replaces: 30HX-14SI
Installation Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . .1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46
Step 1 — Inspect Shipment . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Rig and Place Unit. . . . . . . . . . . . . . . . . . . . . . . . 2
Step 3 — Piping Connections . . . . . . . . . . . . . . . . . . . . . .17
• COOLER FLUID, VENT, AND DRAIN
• BRINE UNITS
• PREPARATION FOR YEAR-ROUND OPERATION
• FILL FLUID LOOP
• INSULATE COOLER HEADS
• 30HXA PIPING, VALVE, AND FAN CYCLING
PRESSURE SWITCH INSTALLATION
• 30HXC PIPING AND VALVE INSTALLATION
• INSTALL PRESSURE RELIEF REFRIGERANT VENT
PIPING
Step 4 — Make Electrical Connections . . . . . . . . . . . . .24
• FIELD POWER CONNECTIONS
• FIELD CONTROL POWER CONNECTIONS
• CONDENSER FAN CONTROL FOR CONDENSER
UNITS USED WITH 30HXA UNITS
Step 5 — Install Accessories . . . . . . . . . . . . . . . . . . . . . . 29
• 30HXA LOW-AMBIENT OPERATION
• MINIMUM LOAD ACCESSORY
• MISCELLANEOUS ACCESSORIES
Step 6 — Leak Test Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
• 30HXC UNITS
• 30HXA UNITS
Step 7 — Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . .42
• 30HXC UNITS
• 30HXA UNITS
Step 8 — BACnet Communication Option Wiring . . .44
SAFETY CONSIDERATIONS
Installing, starting up, and servicing this equipment can
be hazardous due to system pressures, electrical components,
and equipment location. Only trained, qualified installers and
service mechanics should install, start up, and service this
equipment.
When working on the equipment, observe precautions in
the literature and on tags, stickers, and labels attached to the
equipment.
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Use care in handling, rigging, and setting bulky
equipment.
IMPORTANT: This equipment generates, uses, and can ra-
diate radio frequency energy. If not installed and used in ac-
cordance with these instructions, this equipment may cause
radio interference. The equipment has been tested and found
to comply with the limits of a Class A computing device as
defined by the FCC (Federal Communications Commission,
U.S.A.) Regulations, Subpart J of Part 15, which are de-
signed to provide reasonable protection against such inter-
ference when operated in a commercial environment.
WARNING
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and gog-
gles and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from sys-
tem 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. Refrig-
erant 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 gage
for how much oil to add to the system.
e. Carefully unsweat remaining tubing stubs when nec-
essary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal
injury or death.
CAUTION
DO NOT re-use compressor oil or any oil that has been ex-
posed to the atmosphere. Dispose of oil per local codes and
regulations. DO NOT leave refrigerant system open to air
any longer than the actual time required to service the
equipment. Seal circuits being serviced and charge with dry
nitrogen to prevent oil contamination when timely repairs
cannot be completed. Failure to follow these procedures
may result in damage to equipment.
AquaForce
®
30HXA,HXC076-271
Condenserless and Water-Cooled
Liquid Chillers with ComfortLink Controls
50/60 Hz
Series 7
