Kemppi Mastercool 30 Service Manual

Service manual Mastercool 30 Version 1.0 1.11.2011
15
Kemppi Oy
5. FIRST GENERATION CONTROL CARD SP002447
X9 Change machine pressure-/flow characteristic curve.
Open - the pressure is lower
closed – higher pressure
X20 Cooling unit start
*Open – waiting for start signal
Closed – Continuous run
X21 Liquid temperature alarm.
*Open – PTC monitoring by cooler
Closed – PTC monitoring by power source
X22 Pump motor current minimum limit alarm, pressure low or no water.
*Open – alarm on
Closer – alarm off.
H1 Cooling liquid temperature too high.
H2 Pump motor current too low, no water. Alarm level can be adjusted
by trimmer R57 (Default 230mV – 1,4A)
H3
Pump motor current too high. Blocked water hoses, no
circulation.
Adjusting pump motor current minimum: measuring points X7 and X8, adjust voltage using R57 to 230mV
(current limit will be then 1,4A). When adjusting the current limit pump should not be running.
Operational voltages and used connectors are the same as in the card SPW006214.
X3
X4
R57 X21 X22 X20 X9
H1
H2
H3
X7/X8

Kemppi Mastercool 30 Specifications

General

Brand	Kemppi
Model	Mastercool 30
Category	Freezer
Language	English