Carrier 30GT 用户手册

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.

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 

circuits because of 

 automatic lead-lag feature.

 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.

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 

the stubs.

P C 1 1 1

Catalog No. 

Printed in U.S.A.

Form 

 SI

 

2-89

Replaces: