McQuay Incremental PDNC Series, Установка и обслуживание данных

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Installation of Cooling Chassis
Correct installation of the cooling chassis is extremely important
to insure the proper operation of the unit. Install the chassis as
follows:
1. Remove outer carton and inspect for any shipping damage.
Report any found to the carrier.
2. Check nameplate data on chassis to insure that the correct
job site distribution has been made with respect to cooling
capacities. Generally, corner rooms require larger capaci-
ties.
3. Remove chassis from carton by pulling evenly on substan-
tial portion of unit. Caution: Do not pull on evaporator fan
housing, control box or compressor.
4. If wall sleeve has been previously installed, remove tempo-
rary weather panel.
5. Check all fasteners to make certain they have not come
loose during shipment. Do not loosen nuts holding down
compressor; they are set at the factory.
6. Do not lubricate motors before start-up. Motors are factory
lubricated. Consult “Scheduled Maintenance” section on
page 14 for lubrication instructions.
7. Place Tinnerman clips from bag onto wall sleeve. Clips and
mounting screws are enclosed in a bag attached to the top
of the condenser coil cover.
8. If louver has not been previously installed, connect to wall
sleeve as described above.
9. If louver is supplied by others, as illustrated in Figure 4,
page 5, be sure to install foam type gaskets on all sides of
the condenser coil to prevent recirculation or bypass of
condenser air.
10. Slide chassis into wall sleeve until firmly seated against
weather seals of wall sleeve. Caution: Do not push on coil
surface or control box cover. Make sure the com
pres sor
tubing does not catch when inserting chassis.
Installation of Louvers
1. Remove louver from its shipping carton which also contains
a hardware package for mounting the louver.
2. Remove outside weather plug and weather panel from wall
sleeve.
3. Make a temporary handle by looping a piece of flexible wire
or heavy cord through the louver. This enables the installer
to keep a firm grasp on the louver when installing from inside
the room.
4. Push the louver through the opening at the rear of the wall
box, then pull the louver back to the wall sleeve flange so that
the louver studs pass through the holes in the flange.
5. Attach washers and nuts and secure louver in place.
6. If the cooling chassis is not to be immediately installed,
replace the weather panel.
Factory
Supplied
Holes (2)
Cooling
Chassis
Damper Actuator
Hydronic Heat Sect.
Wall Sleeve
Figure 24. Installing the Cooling Chassis
11. Secure chassis to wall sleeve with four (4) sheet metal
screws packaged with the Tinnerman clips.
12. Plug electrical cord into receptacle. Excess cord should be
coiled up neatly and stored in the conditioner.
13. Set the manual damper operator in open or closed position
as desired. On units equipped with the optional electric
fresh air damper, set the “Auto-Off” switch in the desired
position. In “Auto,” the damper is open whenever the indoor
fan motor is running. The “Auto-Off” switch is located on the
bottom front face of the control box.
14. Set cycle switch (located on the bottom front face of the
control box) for constant or cycle indoor fan. With the switch
in “Cycle” position, the indoor fan will shut off when the
thermostat de-energizes cooling or heating.
15. Set the temperature limiting device to the desired range of
thermostat operation. (See page 13 for details on tem-
perature limiting device.)
Anchoring
Anchoring the wall sleeve in the opening is accomplished as
shown in Figure 23. It is recommended that rubber isolation
washers be used with the fasteners to minimize sound
transmission from the equipment to the wall, at the point of con-
tact.
A
5
⁄
16
" (8mm) hole is provided on each side, 2" (51mm) down
from the top and 2" (51mm) in from the rear of the wall sleeve.
It may be necessary to drill additional holes in the wall sleeve to
firmly secure it. Caution: Do not drill holes in the base of the wall
sleeve. Use shims between the wall and the wall sleeve to pre-
vent sleeve distortion during anchoring.
Expansion
Anchor
Bolt
Molly or
Toggle Bolt
Cripple Stud
Main Stud
Wood
Screw
Figure 23. Anchoring Method