Installation; Installation Safety Information; Preceding Installation; Unit Shipping Bracket - York DM090 Installation Manual

INSTALLATION

INSTALLATION SAFETY INFORMATION

Read these instructions before continuing this appliance
installation. This is an outdoor combination heating and cool-
ing unit. The installer must assure that these instructions are
made available to the consumer and with instructions to
retain them for future reference.
1. Refer to the furnace rating plate for the approved type of
gas for this furnace.
2. Install this furnace only in a location and position as
specified on Page 10 of these instructions.
3. Never test for gas leaks with an open flame. Use com-
mercially available soap solution made specifically for
the detection of leaks when checking all connections, as
specified on Pages 8, 22, 23 and 45 of these instruc-
tions.
4. Always install furnace to operate within the furnace's
intended temperature-rise range with the duct system
and within the allowable external static pressure range,
as specified on the unit name/rating plate, specified on
Page 47 of these instructions.
5. This equipment is not to be used for temporary heating
of buildings or structures under construction.
FIRE OR EXPLOSION HAZARD
Failure to follow the safety warning exactly could
result in serious injury, death or property damage.
Never test for gas leaks with an open flame. Use a
commercially available soap solution made specifi-
cally for the detection of leaks to check all connec-
tions. A fire or explosion may result causing property
damage, personal injury or loss of life.

PRECEDING INSTALLATION

1. Remove the two screws holding the brackets in the front,
rear and compressor side fork-lift slots.
2. Turn each bracket toward the ground and the protective
plywood covering will drop to the ground.
3. Remove the condenser coil external protective covering
prior to operation.
8
Bracket
Turn down
Screws
FIGURE 1 -

UNIT SHIPPING BRACKET

4. Remove the toolless doorknobs and instruction packet
prior to installation.
Condenser
Coil External
Protective
Covering
Barometric
Relief Hood in
Shipping Loca-
tion (if included)
FIGURE 2 -

CONDENSER COVERING

FIGURE 3 -

COMPRESSOR SECTION

127408-YIM-B-0606
Toolless
Doorknobs
Installation
Instruction
Packet
Unitary Products Group