Trane CenTraVac CDHH - Screw-Tightening Sequence for Waterboxes; Evaporator Waterbox Covers

CDHH-SVX003C-EN
113
Table 29. Waterbox weights (IP units)
Shell
Size
Description
Non-Marine Plate Non-Marine Dome Marine Plate Cover
Marine Dome
Cover
Marine Waterbox
Weight
(lb)
Lifting
Hole (in.)
Weight
(lb)
Lifting
Hole (in.)
Weight
(lb)
Lifting
Hole (in.)
Weight
(lb)
Lifting
Hole (in.)
Weight
(lb)
Lifting
Hole (in.)
400
Evaporator, 150 psig
— — 652 0.469 1282 0.469 — — 2295 1.38
Evaporator, 300 psig
— — — — 1763 0.469 — — 2849 1.38
Condenser, 150 psig
— — 700 0.469 — 0.469 — — 1544 0.858
Condenser, 300 psig
— — — 0.469 1724 0.469 — — 2138 0.858
440
Evaporator, 150 psig
— — 802 0.469 1702 0.469 — — 3068 1.38
Evaporator, 300 psig
— — 1581 0.469 2476 0.469 — — 4137 1.38
Condenser, 150 psig
— — 763 0.469 — — 543 0.469 1598 0.858
Condenser, 300 psig
— — 1132 0.469 — — 708 0.469 1901 0.858
Table 30. Waterbox weights (SI units)
Shell
Size
Description
Non-Marine Plate Non-Marine Dome Marine Plate Cover
Marine Dome
Cover
Marine Waterbox
Weight
(kg)
Lifting
Hole
(mm)
Weight
(kg)
Lifting
Hole
(mm)
Weight
(kg)
Lifting
Hole
(mm)
Weight
(kg)
Lifting
Hole
(mm)
Weight
(kg)
Lifting
Hole
(mm)
400
Evaporator, 1034.2 kPaG
— — 295 11.9 581 11.9 — — 1041 35.1
Evaporator, 2068.4 kPaG
— — — — 799 11.9 — — 1292 35.1
Condenser, 1034.2 kPaG
— — 317 11.9 — 11.9 — — 700 21.8
Condenser, 2068.4 kPaG
— — — 11.9 782 11.9 — — 970 21.8
440
Evaporator, 1034.2 kPaG
— — 364 11.9 772 11.9 — — 1392 35.1
Evaporator, 2068.4 kPaG
— — 717 11.9 1123 11.9 — — 1876 35.1
Condenser, 1034.2 kPaG
— — 346 11.9 — — 246 11.9 724 21.8
Condenser, 2068.4 kPaG
— — 513 11.9 — — 321 11.9 862 21.8
Screw-Tightening Sequence for
Waterboxes
Evaporator Waterbox Covers
Ensure that the waterbox head rests tightly against the
tube sheet, and then snugly tighten the screws in
sequential order as shown in the following figure. If
excessive tube sheet crown prevents the head from
contacting the tube sheet, tighten the screws located where
the greatest gaps occur. Be sure to use an equal number of
screw turns from side to side. Then, apply final torque to
each screw in sequential order.
Figure 74. Evaporator waterbox cover screw
tightening sequence
1
24
5
9
20
2
23
3
4
22
6
7
8
10
19
18
26
25
17
21
16
15
14
13
12
11
Condenser Waterbox Covers
Condenser waterbox covers use a similar procedure to that
which is used for the evaporator waterbox covers. Use a
crossing pattern as shown in the following figure.
Waterbox Removal and Installation