C.a. Water Cooled Models - Compact CP 30SC E Service Manual

F.A.G. SRL
ME-CPT1-199
IT IS VERY IMPORTANT NOT TO CHANGE CONNECTIONS BETWEEN THE TWO
INTERNAL (a) AND EXTERNAL (b) MICROSWITCHES OF THE TIMER.
external microswitch
green
red
TIMER
It is possible to manually put the unit in defrost cycle by turning the orange pin of the TIMER
clockwise.

1.C.a. Water cooled models

Water inlet to the condenser is regulated by the pressure switch PT, which energizes or not the
condenser water inlet solenoid valve VC, sensing condensing pressure.
The safety thermostat TSA feels condensing temperature, too. In case of excessive temperature, due
e.g. to water shortage, valve failure etc., it shuts down the unit. When temperatures decreases, it
starts again.
WIRING DIAGRAM
water cooled
VC
PT
B
A
B
M
C
M
B
M
V
C
a
NO
B
V
P
V
VG
B
R
VA
B
R
B
All the other diagram are similar to the air cooled ones, provided you change the
the condenser water inlet valve VC , and you add the safety thermostat TSA and the fan motor V.
brown
internal microswitch
a b
B M
TB
3
4
M
TSA
C
M
2 4
M
P
TIMER
C
b T
NC
R
C
B
TE
2 4
R
V
SELF CONTAINED UNITS WITH TIMER
COMPACT SERVICE MANUAL
A) Start of freeze cycle
C
compressor
V
fan motor
P pump
T timer
a
micro a
b
micro b
VG
gas valve
VA water valve
TE evaporator
thermostat
TB bin thermostat
TSA
safety
thermostat
PAG.8
orange pin
ON
ON (PT)
ON
OFF
C-NO
C-NO
OFF
OFF
WARM (C-4)
closed
closed
V
fan motor with