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Check the operating pressures of the refrigerant system
connecting the gauges on hi and low service valve.
The operating pressures at the end of the freezing cycle with
unit at 21ºC ambient and 10°c water inlet should be:
MODEL
NW308AS
NW508AS
NW458AS
NW608AS
NW1008AS
NW1008AS
NW308WS
NW508WS
NW458WS
NW608WS
NW1008WS
NW1008WS
SERVICE ANALYSIS
Disch.Pressure
Disch. Pressure
Freeze max bar
Freeze min bar
18
13
15,4
14
17
11
17
14
17,5
14,5
18
15
17,5
15,8
16
15,5
18
17,5
17
16
18
17
18
17
Suction
Hi pressure
Pressure
CUT OUT
Beginning
bar
Freeze bar
32,5
4,2
32,5
3,4
32,5
3
32,5
2,6
32,5
3,2
32,5
3
32,5
3,6
32,5
3,2
32,5
3
32,5
3
32,5
3
32,5
3
Suction
Pressure
Cycle time
end Freeze
minutes
bar
2,4
17
2
13
1,8
16
1,4
14
1,7
12
1,4
14
2
18
1,6
14
1,4
15
1,4
15
1,7
13
1,7
13
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