Carrier 30GT User Manual
30gt k,hl, Safety considerations, Introduction
HEATING
30GT
K,HL
SAFETY CONSIDERATIONS
Installing, starting-up and servicing air conditioning
equipment can be hazardous due to system pressures,
electrical components and equipment location,
Only trained, qualified installers and service techni-
cians should install, start up and service this equipment.
When working on air conditioning 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 equipment.
INTRODUCTION
These instructions cover field installation of the Acces-
sory Hot Gas B y ass Valve and solenoid pilot valve on
the following chi lers:
through 060 (50 and 60 Hz)
(60 Hz), Flotronic’”
(50 Hz), Flotronic’”
through 200 (50 and 60 Hz), Flotronic’”
(60 Hz)
(50 Hz)
On Flotronic chillers with no unloaders or 2 unloaders,
the accessory hot gas bypass must be added to
both
circuits because of
automatic lead-lag feature.
INSTALLATION
S t e p 1
Examine
e Contents
Pack-
age includes hot gas bypass va ve, solenoid pilot valve
and instructions. Examine each item. If any part is
damaged or missing, file a claim immediately with the
shipping agent.
Step 2
Install Piping
TXV
- - -
a
- - -
C O O L E R
SUCTION LINE
LINE
LINE
(C
I
RC
UI
T
I
I
STUB
(SEALED FROM
FACTORY
BYPASS VALVE
S E E
N O T E 2
SEE NOTE I
FROM FACTORY
FIELD-SUPPLIED BYPASS LINE
HOT
GAS DISCHARGE
C O N D E N S E R
TH ER MOSTATI.C EXPANSION
V A L V E
FACTORY PIPING
PIPING
NOTES:
1. %-in. OD for
and 30GT;
OD for 30GB.
2. The bypass valve this package has %-in. connections and can
be
used directly on
and 30GT units.
3. On 30GB units, a change from
to
must be made either at the valve or
at
the stubs.
Fig. 1
Schematic Piping;
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
P C 1 1 1
Catalog No.
533-039
Printed in U.S.A.
Form
SI
2-89
Replaces: