Air-Cooled Models; Compressor Tiedown Nuts; 1/2 And 10 Horsepower Units Only - Gardner Denver RHC Series Instruction Manual

Air-Cooled Models with
Air Inlet
Air Outlet
Control Panel
Electrical
Enclosure
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.
Integral Condenser
(Optional)
FRONT VIEW
Cooling Water
Outlet
Condensate
Drain
Connection
SIDE VIEW
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.
1/16" SPACE
Compressor Tie-Down Nuts
7 1/2 & 10 HP Units Only
Cooling Water
MOUNTING STUD
MOUNTING NUT
UPPER
RUBBER SPACER
MOUNTING
SPRING
SHIPPING
SPACER
MOUNTING NUT
MOUNTING NUT
LOWER
LOWER
MOUNTING BASE
LOCKWASHER
Inlet
5