Unit installation

PAGE
A.
GENERAL
Introduction……………………………………………………………………………………………………
…
3
Scope of this Manual…………………………………………………………………………………………
…
3
Safety Consideration & Symbols……………………………………………………………………………
…
3-5
Warranty………………………………………………………………………………………………………
…
5
B.
PRODUCT INFORMATION
Model designation details……………………………………………………………………………………
…
6
Major Features…………………………………………………………………………………………………
6
Standard control & Safety devices and other accessories………………………………………………
…
7
Optional Features……………………………………………………………………………………………
…
7-8
Physical data …………………………………………………………………………………………………
…
9-12
Microprocessor controller overview…………………………………………………………………………
…
13
Basic Refrigerant Flow and Process & Ins. diagram………………………………………………………
14
C.
HANDLING & STORAG
E
Inspection………………………………………………………………………………………………………
15
Rigging Instructions …………………………………………………………………………………………
…
15-16
Storage instructions…………………………………………………………………………………………
…
17
D.
INSTALLATION PROCEDURE
S
Pre-installation guidelines……………………………………………………………………………………
…
18
Space Requirements…………………………………………………………………………………………
…
18-26
Clearances……………………………………………………………………………………………………
…
27
Vibration Isolation and Schematic Mounting Layouts……………………………………………………
…
27-29
Recommendations for Spring Type Isolator Selection……………………………………………………
…
30
Load distribution (with aluminium fin condenser coils)……………………………………………………
…
31
Load distribution (with copper fin condenser coils)………………………………………………………
…
32
Unit installation………………………………………………………………………………………………
…
33
Mounting Points………………………………………………………………………………………………
…
33-34
Cooler Piping connections …………………………………………………………………………………
…
34-35
Cooler Connection Types ……………………………………………………………………………………
36
Water Requirements…………………………………………………………………………………………
…
36
Electrical connections, power & control wiring……………………………………………………………
…
37-38
Electrical data…………………………………………………………………………………………………
…
39
Typical schematic wiring diagram……………………………………………………………………………
40-41
Installation Inspection…………………………………………………………………………………………
42
E.
START-UP, COMMISSIONING AND OPERATING PROCEDURE
S
General…………………………………………………………………………………………………………
43
Request for start-up representative…………………………………………………………………………
…
43
Pre-start up requisites………………………………………………………………………………………
…
43-44
Start up of the system…………………………………………………………………………………………
44-45
Lubrication……………………………………………………………………………………………………..
45
System water flow rate and Pressure drop…………………………………………………………………
45-47
Normal operation and cycling………………………………………………………………………………
…
48
Compressor Staging & sequence of operation.……………………………………………………………
…
48
Capacity control steps………………………………………………………………………………………
…
49
Unit shutdown…………………………………………………………………………………………………
…
49
F.
MICROPROCESSOR CONTROLLER DATA
Introduction……………………………………………………………………………………………………
…
50
Master compressor board & slave compressor board……………………………………………………
…
50
Use interface board description……………………………………………………………………………
…
50-51
User sequence of operation…………………………………………………………………………………
…
51
Configuration…………………………………………………………………………………………………
…
51
Software control concept……………………………………………………………………………………
…
51
Temperature control…………………………………………………………………………………………
…
52
Controller structure……………………………………………………………………………………………
…
52
Staging logic…………………………………………………………………………………………………… 52-53
Compressor switch on procedure…………………………………………………………………………… 53
Compressor switch on and off limitation……………………………………………………………………
…
53
INDEX
1