4
REQUIRED CLEARANCE FOR OPERATION AND SERVICING
in. [mm]
EVAP. COIL ACCESS SIDE..............................................................36.00 [914.0]
POWER ENTRY SIDE......................................................................36.00 [914.0]
(EXCEPT FOR NEC REQUIREMENTS)
UNIT TOP .........................................................................................36.00 [914.0]
SIDE OPPOSITE DUCTS ................................................................36.00 [914.0]
DUCT PANEL ...................................................................................12.00 [304.8] *
*MINIMUM DISTANCES: IF UNIT IS PLACED LESS THAN 12.00 [304.8] FROM
WALL SYSTEM, THEN SYSTEM PERFORMANCE MAYBE COMPROMISE.
REQUIRED CLEARANCE TO COMBUSTIBLE MATL.
in. [mm]
TOP OF UNIT...................................................................................14.00 [355.6]
DUCT SIDE OF UNIT.........................................................................2.00 [50.8]
SIDE OPPOSITE DUCTS ................................................................14.00 [355.6]
BOTTOM OF UNIT .............................................................................0.50 [12.7]
ELECTRIC HEAT PANEL .................................................................36.00 [914.4]
NEC. REQUIRED CLEARANCES.
MILLIMETERS [IN.]
BETWEEN UNITS, POWER ENTRY SIDE ....................................42.00 [1066.8]
UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE ...36.00 [914.0]
UNIT AND BLOCK OR CONCRETE WALLS AND OTHER
GROUNDED SURFACES, POWER ENTRY SIDE.........................42.00 [1066.8]
FLUE HOOD
C99074
UNIT
ELECTRICAL
CHARACTERISTICS
UNIT WEIGHT
UNIT HEIGHT
IN. [MM]
“A”
CENTER OF GRAVITY
IN. [MM]
lb
kg
X
Y
Z
574B042--060/090
208/230--1--60, 208/230--3--60
440
200
42.98 [1091.7]
21.0 [533.4]
20.5 [520.7]
16.6 [421.6]
574B048--090/115/130
208/230--1--60, 208/230--3--60
463
210
44.98 [1142.5]
19.5 [495.3]
21.3 [539.8]
18.0 [457.2]
574B060--090/115/130
208/230--1--60, 208/230--3--60
499
226
46.98 [1193.3]
21.0 [533.4]
20.0 [508.0]
17.6 [447.0]
Fig. 3 -- 574B042--060 Unit Dimensions
Step 4 — Provide Clearances
The required minimum operating and service clearances are shown
in Fig. 3 and 4. Adequate combustion, ventilation and condenser air
must be provided in accordance with section 5.3, Air for
Combustion and Ventilation, of the National Fuel Gas Code ANSI
(American National Standards Institute) Z223.1 or applicable
provisions of local building code. In Canada, follow sections 7.2,
7.3, or 7.4 or Can/CGA (Canadian Gas Association) B149
Installation Codes or applicable provisions of local building code.
IMPORTANT
: Do not restrict outdoor airflow. An air restriction
at either the outdoor--air inlet or the fan discharge may be
detrimental to compressor life.
The condenser fan pulls air through the condenser coil and
discharges it through the top grille. Be sure that the fan discharge
does not recirculate to the condenser coil. Do not locate the unit in
either a corner or under an overhead obstruction. The minimum
clearance under a partial overhang (such as a normal house
overhang) is 48--in. above the unit top. The maximum horizontal
extension of a partial overhang must not exceed 48--in.
Do not place the unit where water, ice, or snow from an overhang
or roof will damage or flood the unit. Do not install the unit on
carpeting or other combustible materials. Slab--mounted units
should be at least 4 in. above the highest expected water and runoff
levels. Do not use unit if it has been under water.
Step 5 — Rig and Place Unit
Rigging and handling of this equipment can be hazardous for many
reasons due to the installation location (roofs, elevated structures,
etc.).
Only trained, qualified crane operators and ground support staff
should handle and install this equipment.
When working with this equipment, observe precautions in the
literature, on tags, stickers, and labels attached to the equipment,
and any other safety precautions that might apply.
574B
