Initial Refrigerant Charge; Adjustment Of Instruments And Safety Devices; Control Devices; Pressure Settings - GEA Grasso VHS Series Installation And Maintenance Instructions Manual

INSTALLATION AND PREPARATION FOR USE
PREPARATIONS FOR USE
Fig.11:
1.4.4

Initial refrigerant charge

Refrigerant charging should be done in accordance with the plant manual by
qualified refrigeration engineers.
1.4.5

Adjustment of instruments and safety devices

1.4.5.1 CONTROL DEVICES

1.4.5.2 PRESSURE SETTINGS

Suction pressure *
Discharge pressure
Lubrication oil
pressure difference
1
26
Pre-lubrication valve (P), Oil control pressure regulator (B)
Caution!
Pre-lubrication just before the first start is obligatory.
Hint!
Refer to separate user manuals, in case an electrionic control device
is installed.
Setting
1
Min.
Suction and
intermediate Setting
pressure
Setting
Max.
Setting
Settings Pdischarge - Psuction must never exceed max. value as mentioned in Product Information
Pressure safety limit switches
o
5 C below design evaporating temp.
0.3 bar(a)
Max.= refer to Product Information (PI)
o
5 C above design condensing temp.
24 bar(a)
Min. =1.3 bar
Grasso V 700HS
Grasso V 1100HS
Grasso V 1400HS
Grasso V 1800HS
P-NL-094_imm_VHS_English_13
26.07.2021