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Service Manual
1-155
INSTALLATION
6. Refrigerant
Piping
Work
Table 6.1 Piping Size
inch (mm)
Model
Gas Piping
Liquid Piping
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+<,'0%6
+<,'0%6
+<,'0%6
1/2 (12.7)
1/4 (6.35)
+<,'0%6
+<,'0%6
+<,'0%6
+<,'0%6
+<,'0%6
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.
(5) The refrigerant oil used in combination with refrigerant R410A is susceptible to problems relating to
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impurities may adhere to the expansion valve and it may prevent the proper operation.
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each pipe with dry compressed air or nitrogen to remove this residue before making pipe connections.
6.1 Piping
Materials
(1) Tolerances for refrigerant piping lengths depend on the combination with the outdoor unit. Refer to the
“Installation and Maintenance Manual” for the outdoor unit for details.
(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
Содержание YVAHP072B31S
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Страница 1657: ...Service Manual 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting ...
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Страница 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Страница 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Страница 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
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