1. Disconnect power.
2. Remove top condenser cover. (See paragraph 3-25.)
3. Remove the air conditioner from shelter if necessary. (See paragraph 3-6.)
4. Remove left end condenser cover. (See paragraph 3-27.)
(1) No air passage s permitted at top or bottom of condenser coil. Check to see that insulation strips are in place
to prevent air by pass of coil.
(2) Reglue if loose.
(3) Replace if missing.
Prior to removal of old insulation, cut the new replacement material to size using
the old item as a sample.
(1) Remove as much old insulation material as possible, by pulling or scraping it away from the metal surface.
Acetone and methyl-ethyl ketone (MEK) are flammable, and their vapors can be
explosive. Repeated or prolonged skin contact or inhalation of vapors can be
toxic. Use a well-ventilated area, wear gloves, and keep away from sparks or
(2) Soften and remove old adhesive and gasket residue, using acetone or methyl-ethyl ketone (MEK) and a stiff
(1) Cut to size.
Insulation at top of coil should be attached in proper position to top metal cover of
condenser coil. Insulation at bottom should be attached to condenser housing
angle face below coil.
(2) Be sure that the surface to which the insulation is to be applied is clean and free of paint and old adhesive
(3) Coat the mating surfaces of the metal and the insulation with adhesive (item 12, Appendix E). Let both
surfaces air dry until the adhesive is tacky, but will not stick to the fingers.
(4) Starting with an end, carefully attach the insulation to the metal. Press into firm contact all over.
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