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5. The airtight test pressure for this product is 601psi (4.15MPa).
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NOTICE
When polyethylene foam is applied, a thickness of 3/8 inch (10mm) for liquid piping and 9/16 to 13/16 inch (15
to 20mm) for gas piping is recommended. (Use a grade of insulation with a heat resistance of 212ºF (100ºC) for
gas piping.)
Do not leave any gaps
between layers of insulation.
Insulation
(Field-Supplied)
Insulation
(Field-Supplied)
fter positioning all insulation with tape,
follow up and secure it permanently
with a second application of tape.
Insulation for Gas and
Liquid Line (Accessory)
Insulation Tape
(Field-Supplied)
Wrap insulation tape between the accessory
insulation and the field-supplied insulation.
There should be no gaps showing.
After installation, it is recommended that the customer retain this manual for future reference.
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temperature. Anything done immediately after brazing can cause the insulation to melt.
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Make sure that a test for leakage of refrigerant gases has been performed. The refrigerant used for this
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3. Make sure that all stop valves for the outdoor unit are closed completely.
4. Blow-out the inside of the pipes with nitrogen gas before brazing. Bleed nitrogen gas through piping during
brazing. Pressure not to exceed 2.9psi (0.02MPa).
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