Pressures; Wiring Options; Intake And Exhaust Valves, Unloader - Honeywell WP241 Series Service Data

PRESSURES

During weekly checks, verify that the tank pressure is
the
in
prv pressure is at the proper setting.
W I R I N G OPTiONS
Dual Compressors usually have automatic alternation
between pumps after each pump cycle, and with auto-
matic backup. See wiring options shown in Fig. 3,4 and
- -
PRESSURE SWITCHES
Fig. 3. Automatic Alternation with Automatic Backup. Three-Phase Motor with Low
75-7268
F U S E S . F U S E D DISCONNECT,
- - -
- - -
- 0
I
BELOW
CUT-IN
Fig. 4. Automatic Alternation with Automatic Backup.
For Single-Phase Internally Protected Motors
OR CIRCUIT
- -
- -
- - -
1
2
3
I
L 2
I L - - - - & '
MOTOR
STARTER
5
PRESSURE
BREAKER
C O M P
# I
C O M P
Voltage
Control.