Packo RM/IB Series - Pressure Switch Settings; High-Pressure Safety Warning; Low-Pressure Pressostat Settings

41/78 06/02/2008
1.00
Setting the the pressure switches
Warning
For safety reasons, the maximum pressure of the cooling installation may NEVER be exceeded. The
setting of the high-pressure pressostat must always be LOWER than the maximum permissible pressure
indicated on the identification plate of the cooling group.
1 bottom evaporator segment
2 bottom evaporator segments
4 evaporator segments
Low-pressure pressostat
Set the following values (in kg/cm²):
Evaporator segments milk
cooling tanks
R22
R404A
R134a (R12)
ON
OFF
ON
OFF
ON
OFF
Only bottom segment
1.5
0.5
1.5
0.5
1.3
0.3
Bottom segment 1&2
and
Top segment 3&4
1.5
4.5
0.5
3.1
1.5
5.6
0.5
4
1.3
2.4
0.3
1.5
The settings for the IB-tanks are similar to DX-tanks with only a bottom evaporator segment.
On tanks with bottom and top evaporators, the settings of the low pressure switch is VERY
IMPORTANT in evaporator section 3 & 4 to prevent ice-building with small milk quantities (less than 15%
nominal content).
1
2
1
3
2
4
1