Water Connections; Flow Control; Evaporator And Condenser Water Box Bolt Tightening - Carrier 30XW Installation, Operation And Maintenance Instructions
Water-cooled screw chillers
water-sourced screw heat pumps
nominal cooling capacity: 273-1756 kw
nominal heating capacity: 317-1989 kw
50 hz
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Also See for 30XW:
- Operation instructions manual (39 pages) ,
- User manual (56 pages) ,
- Installation, operation and maintenance instructions (52 pages)
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7.2 - Water connections
The water connections are Victaulic type connections. The inlet and outlet connection diameters are identical.
Inlet/outlet diameters
Standard-efficiency units 30XW-- / 30XWH-
Size
254
Evaporator
Units without option 100C
Nominal diameter
in
5
Actual outside diameter mm 141.3 141.3 141.3 141.3 141.3 141.3 141.3 168.3 168.3 168.3 168.3 168.3 168.3 219.1 219.1 219.1 219.1 219.1 219.1 219.1
Option 100C
Nominal diameter
in
5
Actual outside diameter mm 141.3 141.3 141.3 168.3 168.3 168.3 168.3 168.3 168.3 168.3 168.3 168.3 168.3 219.1 219.1 219.1 219.1 219.1 219.1 219.1
Condenser
Units without option 102C
Nominal diameter
in
5
Actual outside diameter mm 141.3 141.3 141.3 141.3 141.3 141.3 141.3 168.3 168.3 168.3 219.1 219.1 219.1 219.1 219.1 219.1 219.1 219.1 219.1 219.1
Option 102C
Nominal diameter
in
6
Actual outside diameter mm 168.3 168.3 168.3 168.3 168.3 168.3 168.3 219.1 219.1 219.1 219.1 219.1 219.1 219.1 219.1 219.1 219.1 219.1 219.1 219.1
High-efficiency units 30XW-P / 30XWHP
Size
Evaporator
Units without option 100C
Nominal diameter
in
Actual outside diameter
mm
Option 100C
Nominal diameter
in
Actual outside diameter
mm
Condenser
Units without option 102C
Nominal diameter
in
Actual outside diameter
mm
Option 102C
Nominal diameter
in
Actual outside diameter
mm
7.3 - Flow control
Evaporator flow switch and chilled water pump interlock
IMPORTANT: On 30XW units, the unit water flow switch
must be energised. Failure to follow this instruction will
void the Carrier guarantee.
The water flow switch is installed on the evaporator water
inlet and adjusted by the control, based on unit size and
application. If adjustment is necessary, it must be carried
out by qualified personnel trained by Carrier Service.
22
304
354
402
452
552
5
5
5
5
5
5
5
6
6
6
5
5
5
5
5
6
6
6
6
6
512
562
712
6
6
8
168.3
168.3
219.1
6
6
8
168.3
168.3
219.1
6
6
8
168.3
168.3
219.1
8
8
8
219.1
219.1
219.1
602
652
702
802
852
5
6
6
6
6
6
6
6
6
6
5
6
6
6
8
6
8
8
8
8
812
862
1012
8
8
8
219.1
219.1
219.1
8
8
8
219.1
219.1
219.1
8
8
8
219.1
219.1
219.1
8
8
8
219.1
219.1
219.1
7.4 - Evaporator and condenser water box bolt
tightening
The evaporator (and condenser) are of the shell and tube
type with removable water boxes to facilitate cleaning.
Re-tightening or tightening must be done in accordance
with the illustration in the example below.
Water box tightening sequence
Legend
1
Sequence 1: 1 2 3 4
Sequence 2: 5 6 7 8
Sequence 3: 9 10 11 12
Sequence 4: 13 14 15 16
NOTE: Before this operation we recommend draining the
circuit and disconnecting the pipes to be sure that the bolts
are correctly and uniformly tightened.
1002 1052 1154 1252 1352 1452 1552 1652 1702
6
6
8
8
8
6
6
8
8
8
8
8
8
8
8
8
8
8
8
8
1162
1314
1464
8
8
8
219.1
219.1
219.1
8
8
8
219.1
219.1
219.1
8
8
8
219.1
219.1
219.1
8
8
8
219.1
219.1
219.1
2
Tightening torque
Bolt size M16 - 171 - 210 Nm
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
1612
1762
10
10
273.1
273.1
10
10
273.1
273.1
10
10
273.1
273.1
10
10
273.1
273.1
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