York DM120 Air Conditioner User Manual


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127408-YIM-B-0606
Unitary Products Group 9
LIMITATIONS
These units must be installed in accordance with the follow-
ing:
1. Local building codes, and
2. Local gas utility requirements
3. Local plumbing and waste water codes, and
4. Other applicable local codes.
Refer to Tables 1 & 2 for unit application data.
After installation, gas fired units must be adjusted to obtain a
temperature rise within the range specified on the unit rating
plate.
If components are to be added to a unit to meet local codes,
they are to be installed at the dealer’s and/or customer’s
expense.
Size of unit for proposed installation should be based on heat
loss/heat gain calculation made according to the methods of
Air Conditioning Contractors of America (ACCA).
This furnace is not to be used for temporary heating of build-
ings or structures under construction.
This product must be installed in strict compliance
with the enclosed installation instructions and any
applicable local, state and national codes including,
but not limited to, building, electrical, and mechani-
cal codes.
The furnace and its individual shut-off valve must be
disconnected from the gas supply piping system
during any pressure testing at pressures in excess
of 1/2 PSIG.
Pressures greater than 1/2 PSIG will cause gas
valve damage resulting in a hazardous condition. If it
is subjected to a pressure greater than 1/2 PSIG, the
gas valve must be replaced.
The furnace must be isolated from the gas supply
piping system by closing its individual manual shut-
off valve during any pressure testing of the gas sup-
ply piping system at test pressures equal to or less
than 1/2 PSIG.
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