Reassembly
This section provides technical specifics for the chiller, including weights, dimensions, and torque
requirements.
Note: The YVAM chiller is completely factory assembled and does not require any field
assembly. For occasions where field disassembly or reassembly may need to be conducted
for any reason, the following sections are intended to provide technical details for a qualified
Johnson Controls Service representative to safely complete these tasks.
Table 14: Assembly torque metric for metric tube fittings
Torque valueFitting size Port thread size
lb·ft N•m
M10 M10 x 1 17 23
M12 M12 x1.5 24 33
M14 M14 x 1.5 34 46
M16 M16 x 1.5 46 63
M18 M18 x 1.5 61 83
M22 M22 x 1.5 94 127
M27 M27 x 2 139 189
M30 M30 x 2 167 226
M33 M33 x 2 194 263
M42 M42 x 2 265 359
M48 M48 x 2 302 410
M60 M60 x 2 359 487
Table 15: Assembly torque values for SAE tube fittings
Tube size SAE straight thread size
(O-ring part number)
SAE straight thread
torque, lb·ft
Face seal tube-side
thread size (O-ring part
number)
Face seal tube-side
torque, lb·ft
1/4 in. 7/16-20
(028-12961-001)
25 9/16-18
(028-12961-011)
18
3/8 in. 9/16-18
(028-12961-003)
35 11/16-16
(028-12961-012)
30
1/2 in. 3/4-16
(028-12961-004)
60 13/16-16
(028-12961-013)
40
5/8 in. 7/8-14
(028-12961-005)
100 1-14
(028-12961-014)
60
3/4 in. 1 1/16-12
(028-12961-006)
135 1-3/16-12
(028-12961-015)
85
1 in. 1 5/16-12
(028-12961-008)
200 1-7/16-12
(028-12961-016)
110
1 1/4 in. 1 5/8-12
(028-12961-017)
250 1-11/16-12
(028-12961-022)
140
1 1/2 in. 1 7/8-12
(028-12961-020)
305 2-12-UN2A
(028-12961-019)
180
= SAE
sightglass
2 1/4-12
(028-12961-)
225 — —
41YVAM Air-Cooled Centrifugal Liquid Chiller
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