York YSCD, Manual, Page: 14 / 108

14
JOHNSON CONTROLS
FORM 145.05-NOM2 (807)
LOCATION AND CLEARANCES
The following guidelines should be used to select a
suitable location for the unit installation:
•
The unit is designed for indoor installation only
•
Verify the fl oor or foundation is level. For proper
unit operation the unit should be level with a
1/16” side to side and 1/8” front to back. Failure
to level the unit properly could result in conden-
sate management problems, such as standing
water inside the unit.
For installation, service and maintenance access, the
following clearances should be followed. Minimum
clearances required by local, state, or national codes,
such as NEC take precedence over those listed in Figure
1 and Table 4. Clearance is required to allow room for
side fi lter access, mechanical cleaning of the condenser
tubes and water economizer coil, access to expansion
valves and other control components and to allow for
possible fan shaft or compressor removal. Additional
clearance should be considered for component
replacement such as condenser, evaporator, water
economizer coil and supply fan. Even though there is
no vertical clearance specifi cation listed clearance above
the unit may be advantages during change out of any of
the above components.
FIG. 1 – RECOMMENDED SERVICE AND
MAINTENANCE CLEARANCE
RIGGING AND UNIT HANDLING
Units are shipped with a protective covering, which
should remain in place while the unit is being moved
to its fi nal location.
Never allow any part of the unit to fall
during unloading or moving as this
may result in serious damage.
Unit weights are listed in Table 5 in this manual. These
weights must be referred to when selecting a crane for
rigging. Contact your Johnson Controls Sales Offi ce if
you have any questions regarding unit weights.
Ensure lifting equipment capacity
exceeds unit weight by an adequate
safety factor to prevent injury, death,
or unit damage.
TABLE 4 – ACCESS REQUIREMENTS
AREA DISTANCE COMPONENT ACCESSED
UNIT FRONT 42"
MOST ELECTRICAL AND POW-
ER COMPONENTS, VFD, FAN
BELT ADJUSTMENTS, GREAS-
ING BOTH BEARINGS, FAN
WHEEL, FAN MOTOR, SHAFT
PULL, ETC.
UNIT REAR 18"
FILTER ACCESS, COIL ACCESS,
ETC.
UNIT LEFT 24"
UNIT RIGHT 24"
42"
LEFT
FRONT
RIGHT
BACK
24"
24"
18"
LDO10371
Installation