Table Of Contents - GEA Grasso VHS Series Installation And Maintenance Instructions Manual

TABLE OF CONTENTS

1 INSTALLATION AND PREPARATION FOR USE
1.1 Running-in oil filter has to be installed after an overhaul or big repair
1.2 Safety valves
1.3 INSTALLATION
1.3.1 Moving instructions and storage
1.3.2 Storage
1.3.3 Hoisting and moving instructions
1.3.4 Required free space
1.3.5 Foundation requirements
Concrete structure
Anchoring
Mounting the base frame on a concrete block
Mounting bare compressor on a concrete block
1.3.6 Connecting to refrigerating system pipework
Torques for factory supplied check valve / stop valve assembly
1.3.7 Connecting the power supply
1.3.8 Earthing connections
1.3.9 Separately delivered components
1.4 PREPARATIONS FOR USE
1.4.1 Leak test of compressor and system
1.4.2 EVACUATION/DRYING THE REFRIGERATING SYSTEM
1.4.3 Initial oil charge
Oil quantities VHS
1.4.4 Initial refrigerant charge
1.4.5 Adjustment of instruments and safety devices
CONTROL DEVICES
PRESSURE SETTINGS
RE-ADJUSTMENT OF OIL PRESSURE REGULATORS
1.4.6 Checking direction of rotation of motor shaft
1.4.7 Installing the drive guards (if present)
1.4.8 Initial oil warm up
1.4.9 Initial start-up
Limitations of part load operation and start-up
WIRING LOGIC NORMALLY OPEN UNLOADED START SOLENOID
Frequency controlled compressor
Pre-start check list
1.4.10 Starting and stopping procedures
First start
Restart
Restart after a short standstill period of time (less than 1 month)
Restart after a long standstill period of time
Stopping the compressor
2 INSPECTION AND TROUBLE SHOOTING
2.1 Periodical inspection
2.2 Survey of periodical inspections
2.2.1 Check list periodical inspection
2.3 STEPS FOR LONGER SHUT-DOWN PERIODS (> 6 months)
2.4 LUBRICATION DATA
2.4.1 Topping up oil with compressor operating
2.5 EVACUATION, LEAK TESTING AND START-UP OF THE COMPRESSOR/PACKAGE
2.5.1 EVACUATION OF REFRIGERANT BEFORE SERVICING
2.5.2 LEAK-TIGHTNESS AFTER SERVICING
2.5.3 EVACUATION AFTER SERVICING
2.5.4 START-UP AFTER SERVICING
2.6 DRAINING AND CHANGE OF OIL
2.7 REPLACEMENT OF OIL FILTERS
2.8 DISMANTLING, INSPECTION AND RE-ASSEMBLY OF SUCTION AND DISCHARGE VALVES
2.9 COMPRESSOR PURGING
2.10 TROUBLESHOOTING TABLE GRASSO RECIPROCATING COMPRESSORS
3 MAINTENANCE
P-NL-094_imm_VHS_English_13
26.07.2021
13
13
13
13
14
14
15
16
16
17
18
19
21
21
22
23
23
23
24
24
24
24
25
26
26
26
26
27
28
28
28
28
28
29
29
29
30
30
31
31
31
31
32
32
32
33
33
34
34
34
34
35
35
35
36
36
37
37
37
41
11