Gardner Denver RHC Series, Instruction Manual

5

Cooling Water

Outlet

SIDE VIEW

Cooling Water

Inlet

Air Inlet

Air Outlet

Electrical

Enclosure

Condensate

Drain

Connection

Control Panel

MOUNTING NUT
LOWER

1/16" SPACE

MOUNTING STUD

RUBBER SPACER

LOCKWASHER

MOUNTING BASE

MOUNTING NUT
LOWER

SHIPPING
SPACER

MOUNTING
SPRING

MOUNTING NUT
UPPER

Compressor Tie-Down Nuts

7 1/2 & 10 HP Units Only

CAUTION:  

Interconnecting refrigerant lines must be

adequately sized and designed to ensure proper oil
return, including traps, check valves, and separators
where necessary.

3.  Using access ports on hot gas and liquid lines, evacu-

ate lines with vacuum pump to remove air and mois-
ture.  Add refrigerant only if necessary.

2.7  Compressor tiedown nuts - 7 1/2 and 10

       horsepower units only

     CAUTION:  

The following procedure must be

followed to prevent compressor damage.

A.  Remove the upper mounting nuts and shipping

spacers from the four (4) mounting studs.

B.  Place one (1) rubber spacer on each stud, and replace

mounting nut, leaving 1/16" space between the
mounting nut and upper spacer.

B.  Connect power to proper terminals.

C.  Recommended branch circuit and unit fuse protection

can be found in the Technical Data Section.

D.  Be sure that voltage to unit is as marked on unit

nameplate and on condensing unit baseplate.

E.  

Air-Cooled models

 - remote condensers - wire

condenser to terminals in dryer electrical enclosure
identified on electrical schematic.

F.  Remote Alarm Connection
     Connection for external alarm is made on the terminal

strip found in the main electrical enclosure. See
electrical drawings supplied with the unit for connec-
tions.  If provisions for multiple alarms are provided
(optional) see schematic.

NOTE:

 Two (2) amps is maximum draw through alarm

     contacts.

G.  Optional Remote Standby/Run - See Electrical Wiring
     Schematic on page 9.

2.6  Air-Cooled Models

A.  Integrally mounted condenser:  Condensers mounted

on the dryer are shipped prepiped, charged with
refrigerant, and ready to operate.

B.  Remote mounted:  

CAUTION:

  Installation of remote

mounted condenser should be preformed by a
qualified refrigeration mechanic.

1.  Both the dryer and condenser are supplied with

isolation valves in the off position and are shipped fully
charged with refrigerant.  Refrigerant lines have been
brazed shut to prevent leakage of refrigerant.

2.  After condenser is in place, run refrigeration lines

between dryer and condenser; cut off brazed ends of
refrigeration lines and braze new lines to cut off ends
using appropriate couplings.

Air-Cooled Models with

Integral Condenser

(Optional)

FRONT VIEW