Reznor Q6SD (3ph) Unit Installation Manual - Manual (Page 8)

8
Air Filter Requirements
WARNING:
Never operate the unit without a fi lter in place.
Dust and lint could accumulate on internal parts,
resulting in loss of effi ciency, equipment damage
and possible fi re. Replace disposable fi lters with
the same type and size.
• Air fi lter(s) are not supplied and must be installed in
the return air system by the installer.Only three phase
units are equipped with an internal fi lter rack assembly.
• All return air must pass through the fi lters before
entering the unit. Recommended fi lter sizes are listed
in Table 1. NOTE:
It is important that all fi lters be
kept clean and replaced frequently to ensure proper
operation of unit. Dirty or clogged fi lters will reduce
the effi ciency of the unit and result in unit shutdowns.
• Air fi lter pressure drop must not exceed 0.08 inches
WC. When replacing the air fi lters, a suitable air fi lter
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 fi lter system be
installed in the return air ductwork.
Unit Size Internal Filter Size
Q6SD-X36
(2) 16” x 25” x 1”
or
(2) 16” x 25” x 2”
Q6SD-X48 / X60
(2) 18” x 25” x 1”
or
(2) 18” x 25” x 2”
Table 1. Internal Filter Sizes
HEAT PUMP 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 and 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 4 (page 15) 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 7 (page 15)
for locating the center of gravity.
• All panels must be securely in place during
rigging and hoisting.
Minimum Clearance Requirements
Q6SD units are certifi ed as combination heating and
cooling equipment for outdoor installation only. Figure 2
(page 7) displays the minimum clearances to obstructions
for both downfl ow and horizontal discharge.
Units may be installed on wood fl ooring or on Class A, B,
or C roof covering material when used with bottom supply
and return air ducts as long as the following requirements
are met:
• If using horizontal supply and return air ducts, the
horizontal roof curb kit and return air kit must be
installed prior to unit installation. Horizontal roof curb
is required.
• 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.
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. Also consider clearances for access to the
internal fi lter.
• A suitable mounting pad (Figure 3) 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
2”
Figure 3. Ground Level Installation