Installation Instructions — R80C | R80H
Installation
Verify the existing wall thickness
1.
— the distance from the
condenser coil to the outdoor louver varies with the sleeve depth.
Each chassis includes standard air baffles to accommodate the
most common condenser coil to outdoor louver requirements.
In addition, we stock an optional condenser-side air baffle kit for
chassis installation in deeper than standard walls. The weather
angles should need no adjustment.
Verify air supply alignment —
2.
slide the unit into the wall-
sleeve. The supply duct on the cooling chassis should line up with
the supply vent on the room cabinet.
Install the baffles
3.
— slide the unit back out of the wall sleeve.
Remove the baffles from the kit bag supplied with unit. Install
the left and right side baffles on the condenser coil by completing
steps below:
Baffles must come in contact with the outdoor louver.
•
Make sure the baffles are directed inward toward the center of
•
coil (see Figure 27).
Secure baffles tightly into the existing holes of the condenser coil
•
using the screws provided.
NOTICE
The correct condenser air baffles must be installed or performances
may be impaired.
Install the foam tape
4.
— apply ¹∕₂” x ¹∕₂” open-cell foam strips
around supply air duct to ensure that all the conditioned air is
delivered into the room (see Figure 27). Failure to do so results
in recirculation of the conditioned air through the cabinet causing
the unit to short cycle, and coil to freeze.
Install the foam tape
5.
— Apply 1” x 1” open-cell foam strips to
prevent outside air from entering around the chassis to the room
from the sides and top of the cabinet. Install the strips between the
wall sleeve and the cooling chassis (see Figure 27). It is imperative
to have a solid air seal between the wall sleeve and the chassis.
Failure to do so will result in air leakage from outdoor to indoor
causing system problems
(example — coils freezing, short cycling,
and constant running of unit)
. If there is a need for more foam than
supplied in kit, consult the factory.
Connecting the optional hydronic coil
6.
— if the hydronic
heat option has been ordered, then the hydronic coil will need to
be field installed on the new unit. Hydronic coils are not factory
installed and need to be ordered. The coil with the old unit can be
located in the subbase, under the chassis in a special attachment,
or above the chassis in a special attachment. It is necessary to
know where the coil is to be located and the physical size of the
coil so the new coil can be verified if ordered for replacement.
The new coil should be installed in the same manner as the coil
it is replacing.
Remove the 2-position connector assembly from kit bag supplied
•
with unit (
this will have 2 yellow wires attached
).
Connect this 2-position connector to the 2-position connection
•
located on the bottom of the control box panel.
Connecting the Accessory Aquastat
7.
— if the accessory
Aquastat has been ordered then it will need to be field installed.
Remove the black jumper wire located on the bottom panel of the
•
control box (
this is also terminated with a 2-position connector
).
Cut the jumper wire in the middle and splice the Aquastat to
•
the jumper.
Place the connector back into original location. Refer to the wir-
•
ing diagram on the unit for details.
Aquastat accessories can be orderd. Kit contains molex con-
•
nectors
Secure the chassis
8.
— after ensuring that all seals are the cor-
rect size and in the proper location and the correct baffles are
attached to the condenser coil and in the proper orientation,
slide the unit into final position and tighten any tie down bolts or
screws as necessary.
Hard-wired units
9.
— If the unit is hard wired, follow the in-
structions on page 11 to verify existing wiring and overcurrent
protection. Remove the line cord wires from the PTAC/PTHP
power entrance terminals. Route the power supply wiring through
a strain-relief bushing and connect leads to the power entrance
terminals. Secure the strain-relief clamp. (If wiring is through
conduit, insert the conduit through the control box knockout
and secure in place.)
DO NOT
turn on power until completing
instructions in "Final Inspection and Startup" on page 26.
DO NOT PLUG IN the line cord, if used
10.
. Follow instructions
in "Final Inspection and Startup" on page 26.
Replacement Packaged Terminal Air-Conditioning / Heat Pump
• Installation, Operation, and Maintenance Manual •
The Right Fit for Comfort
20
P/N 240008034, Rev. D [7/29/2011]
