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6
General Installation Information cont.
Slab Mounted Units
The unit should be set on a solid, level foundation,
preferably a concrete slab. The slab is to be constructed
to local building codes and support unit weight. Maintain
level tolerance to 1/8” across width and length of unit.
Any slab used as a unit’s foundation should not adjoin the
building as it is possible that sound and vibration may be
transmitted to the structure. Slab should be at least 2”
above grade. The slab should be surrounded by a gravel
apron to allow for good drainage. The slab should extend
2” beyond the cabinet on all 4 sides of the unit. Do not
secure the unit to the slab EXCEPT when required by
local codes. If heat pump has bottom water connections
provisions need to be made for piping connections.
After setting the unit in place, remove and discard the
compressor hold down shipping bolt located at the front of
the compressor mounting bracket.
Figure 1: Slab Mounted Unit
Figure 2: Roof (Curb) Mounted Unit
Operating Weight
Model
LB/[KG]
026
502 [228]
038
545 [247]
049
580 [263]
064
596 [270]
072
606 [275]
Remove shipping bolt
Installing Roof (Curb) Mounted
Roof curb not provided by unit manufacturer and must be
outsourced. Check building codes for weight distribution
requirements (see operating weights table).
Follow all appropriate instructions to install the unit on a
rooftop curb. See installation instructions provided with the
roof curb and unit for more specific information.
AFFINITY SERIES
OUTDOOR PACKAGED HEAT PUMP INSTALLATION MANUAL