Johnson Controls YVAHP0721CW Series, Service Manual

Page: 159 / 416

Allow adequate room for elbow, angled, and irregular piping arrangements to compensate for
expansion and contraction brought on by temperature change.
4. Installation Work
4.1 Piping Connection Size
7KHHQGVRIWKHPXOWLNLWVDUH¿QLVKHGDVVKRZQLQWKHIROORZLQJ¿JXUHV&XWWKHHQGRIWKHSLSHWRFRUUHVSRQG
with the pipe size.
OD 1/2
OD 1/4
ID 3/4
OD 5/8
OD 1/4
ID 3/8
OD 1/4
ID 3/8
OD 1/4
OD 1/2
ID 5/8
φ
3/4
φ
5/8
ID 5/8
ID 1/2
φ
3/8
φ
3/4
φ
3/8
ID 1/4
ID 3/8
ID 3/8
ID 3/8
ID 1/4
ID 3/4
ID 1/2
φ
3/4
φ
3/8
ID 3/8
ID 5/8
φ
5/8
ID 5/8
ID 3/4
ID 7/8
φ
7/8
MH-NP224A
MH-NP288A
Models Gas Line Liquid Line Expander Closing Pipe
φ
3/8
φ
3/8
(For Closing)
(For Closing)
(For Gas Line)
(For Liquid Line)
(For Gas Line)
(For Liquid Line)
(For Gas Line)
(For Liquid Line)
(For Liquid Line)
Qty.: 2
Qty.: 2
Qty.: 6
Qty.: 6
Qty.: 4
Qty.: 2
Qty.: 8
Unit: inch, ID: Inner Diameter, OD: Outer Diameter
4.2 Installation Position
Perform to install horizontally always.
(Example: Model MH-NP288A)
Horizontally
Gas Piping Side
Liquid Piping Side
Horizontally
60
INSTALLATION