Nortek P8SD-X36C, Руководство по установке

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6
air Filter requirements
Warning:
never operate the unit without a filter in place.
dust and lint could accumulate on internal parts,
resulting in loss of efficiency, equipment damage
and possible fire. replace disposable filters with
the same type and size.
• Air filter(s) are not supplied and must be installed in
the unit or in the return air system by the installer. Only
three phase units are equipped with an internal filter rack
assembly.
• If using an Economizer or Fresh Air Equipment, the factory
installed filter rack must be removed prior to installation.
See
page 7 for removal instructions.
• All return air must pass through the filters before
entering the unit. Recommended filter sizes are listed in
Table 1
.
note:
It is important that all filters be kept clean
and replaced frequently to ensure proper operation of
unit. Dirty or clogged filters will reduce the efficiency of
the unit and result in unit shutdowns.
• Air filter pressure drop must not exceed 0.08 inches WC.
When replacing the air filters, a suitable air filter must be
installed upstream of the evaporator coil of the return air
system.
• Downflow Installations require an internal filter accessory
kit to be installed.
• Horizontal Installations require the air filter system be
installed in the return air ductwork.
air conditioner inStallation
Packaging removal
Remove the shipping carton and User’s Manual from the
equipment. Take care not to damage the tubing connections
when removing the carton. For rooftop installations, remove
and discard the two supports attached beneath the unit.
rigging & Hoisting
Warning:
to avoid the risk of property damage, personal
injury, or death, it is the rigger’s responsibility
to ensure that whatever means are used to hoist
the unit are safe and adequate:
• The lifting equipment must be adequate for the
load. refer to
table 6 (page 13)
for unit weights.
• The unit must be lifted from the holes in the
base rails using cables or chains.
• Spreader bars are required to protect the unit
and ensure even loading.
• Keep the unit in an upright position at all times.
the rigging must be located outside the units
center of gravity. refer to
Figure 8 (page 13)
for locating the center of gravity.
• All panels must be securely in place during
rigging and hoisting.
Minimum clearance requirements
P8SD units are certified as cooling equipment for outdoor
installation only.
Figure 2 (page 5) displays the minimum
clearances to obstructions for both Downflow and Horizontal
discharge.
Units may be installed on wood flooring or on Class A, B,
or C roof covering material when used with bottom supply
and return air ducts. If using bottom discharge with return air
ducts, a roof curb must be installed prior to unit installation.
See Rigging and Hoisting section for setting of the unit
(
page 6
).
ground level
Ground level installations must be located according to local
building codes or ordinances and these requirements:
• Clearances must be in accordance with those shown in
Figure 2
.
• A suitable mounting pad must be provided and separate
from the building foundation. The pad must be level to
ensure proper condensate disposal and strong enough
to support the unit’s weight. The slab height must be a
minimum of 2” (5cm) above grade and with adequate
drainage. See Figure 3 (page 7) .
• Allow sufficient clearances for access to the internal filter
rack.
table 1. internal Filter Size requirements.
unit Size internal Filter Size
P8SE-X36
P8SE-X48
(2) 14” x 25”
or
(2) 14” x 25”
P8SE-X60
(2) 18” x 25”
or
(2) 18” x 25”