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95
HIGH PRESSURE
CUTOUT TEST
Running with compressor fully
loaded and with evaporator fan
at high speed, awaiting high
pressure cut out. The test is
ended if the condenser coil
probe reads temperature above
70ºC and the HPCO does not
occurs. The time observing is
depending on the startup tem-
perature and will be increased as
long as the condenser tempera-
ture is increasing.
After the HPCO the compressor
signal is removed and the
condenser fan is activated to
lower the pressure in the
condenser. When the tempera-
ture gets below 40ºC the
compressor is also activated.
The test will then look for when
the HPCO gets back to normal in
maximal 60 seconds.
Awaiting HPCO - Compressor
stop
53, 54
Max. 200
seconds
X
X
-
CAPACITY TEST
With compressor fully loaded con-
denser fan on and evaporator
fan at high speed running for the
time period. At the end of the
test is the cooling capability
evaluated.
Evaluating cooling capability
22
180
seconds for
40’ and 240
seconds for
20’ unit.
-
X
-
APPROACHING 0
TEST
Probe readings and time are
recorded in the pti log when
started. When supply air tem-
perature is at 0 deg C / 32F the
test
is ended. If the test is not ended
within the time limit the alarm is
set.
Approaching 0C/32F
23
Max. 2
hours
X
-
-
Display*
Description
Possible
Alarms
Duration
(Time)
PTI
Brief
PTI
Function
Test
Summary of Contents for 098203
Page 2: ......
Page 3: ...MAGNUM TK 60275 4 MM Rev 3 08 15 Copyright 2012 Ingersoll Rand EMEIA Printed in Ireland...
Page 193: ...Refrigeration Maintenance 191 Figure 163 Filter Drier...
Page 200: ...Refrigeration Maintenance 198 Figure 169 Receiver Tank Figure 170 Water Cooled Condenser Tank...
Page 257: ...255 Schematic Diagram RELEASED 19 Sep 2013...
Page 258: ...256 Wiring Diagram Page 1 of 2 RELEASED 19 Sep 2013...
Page 259: ...257 Wiring Diagram Page 2 of 2 RELEASED 19 Sep 2013...
Page 263: ......