2. Control Functions
Control functions on the module
SMGB0082 rev.1 - 07/2015
42
2.1.22
Switch for confirmation of high pressure cut. (Cooling operation).
By switching to this test mode, it is possible to force the activation of high pressure switch device, which simplifies the task
of checking the activation of high pressure switch, when it might be necessary for circumstances such as test run.
Method of operation
Switch for
check test
of high
pressure cut
High pressure cut check
Operation in
local/cooling
Remote/Local
Cooling/Heating
(Push for more than 100ms)
Press the push button switch (No.1; PSW3) indicated as "High pressure cut check" on the upper left side of the control
PCB, after having operated the chiller unit in cooling operation, in local operation mode. When pushing the push button
switch, the group of fans is forced to stop. After this, the pressure of high pressure side increases, activating the high
pressure interruption device and causing an alarm stop. Alarm stop and forced fan stop can be released by performing the
stop control of the chiller unit and the recovery control of the main unit of high pressure interruption device (pressing the
reset button).
LCD screen
[Segment display]
"
C1-C
.
0
"
n: Cycle unit number (n: 1~2)
