Limitations - York MagnaDRY DK-07 Series Installation Manual

Single package air conditioners and single package gas/electric units
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335224-BIM-B-1208
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.

LIMITATIONS

These units must be installed in accordance with the follow-
ing:
In U.S.A.:
1.
National Electrical Code, ANSI/NFPA No. 70 - Latest
Edition
2.
National Fuel Gas Code, ANSI Z223.1 - Latest Edition
3.
Gas-Fired Central Furnace Standard, ANSI Z21.47a. -
Latest Edition
4.
Local building codes, and
5.
Local gas utility requirements
8
In Canada:
1.
Canadian Electrical Code, CSA C22.1
2.
Installation Codes, CSA - B149.1.
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.
The Simplicity® control board used in this product
will effectively operate the cooling system down to
0°F when this product is applied in a comfort cooling
application for people. An economizer is typically
included in this type of application. When applying
this product for process cooling applications (com-
puter rooms, switchgear, etc.), please reference
applications bulletin AE-011-07 or call the applica-
tions department for Unitary Products @ 1-877-
UPG-SERV for guidance. Additional accessories
may be needed for stable operation at temperatures
below 30° F.
Johnson Controls Unitary Products

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Magnadry dk-10 seriesMagnadry dk-12 series

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