Service Manual
1-299
INSTALLATION
6. Refrigerant
Piping
Work
Table 6.1 Piping Size
inch (mm)
Model
Gas Piping
Liquid Piping
TIWM006B21S
TIWM008B21S
TIWM012B21S
TIWM015B21S
1/2 (12.7)
1/4 (6.35)
TIWM018B21S
TIWM024B21S
5/8 (15.88)
3/8 (9.52)
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(4) Select clean copper pipes. Make sure there is no dust and moisture inside.
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Impurities can adhere to the expansion valve and can impair system operation.
(6)
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dry compressed air or nitrogen to remove this residue before making pipe connections.
6.1 Piping
Materials
(1) Tolerances of refrigerant piping lengths depend on the combination with the outdoor unit.
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(2) Select the piping size from the following table.
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In Case of Getting the Pipe
Through a Hole in the Wall
Correct
Correct
Incorrect
Incorrect
Correct
Incorrect
Hole
Hole
Attach a cap or put a plastic bag
over the pipe end.
Attach a cap or put a plastic
bag over the pipe end.
Attach a cap or put a plastic
bag over the pipe end.
Rubber Band
Do not lay the pipe
directly on the ground.
Rain water
can come in.
In Case of Rain
Summary of Contents for YVAHP072B31S
Page 2: ......
Page 10: ...viii Service Manual ...
Page 16: ......
Page 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Page 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
Page 920: ......
Page 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Page 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Page 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
Page 1728: ......
Page 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Page 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Page 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
Page 1795: ......
Page 1796: ... 2015 Johnson Controls Inc SM 15001 ...