ECR RetroAire R90C Installation, operation & maintenance manual - page 11
Figure 3 Direction Of Baffles And Foam
Installation
Figure 4 Foam Tape Installation Against Wall
Sleeves
INSTALLATION INSTRUCTIONS — R90C | R90H
Installation - R90C/R90H
1.
Verify existing wall thickness
— distance from
condenser coil to outdoor louver varies with sleeve
depth.
• Standard air baffles are included to accommodate
most installation requirements.
• Air baffle kits are available from the manufacturer
for unique for applications. Have wall sleeve depth
available when ordering to ensure proper baffle size.
• R90C | R90H chassis is 18 ” deep for 9, 12, 15 Btuh
models. Standard depth for 18 Btuh is 24". Can also
be supplied for an 18” chassis when requested.
2.
Install duct collar and slide-duct
Affix ¹∕4” x ¾” foam tape to bottom flanges of duct
collar. This serves as gasket between the collar and unit.
• Securely fasten duct collar over discharge openining
with screws provided.
• Insert slide-duct into duct collar. See Figure 1, page 6.
3.
Verify air supply alignment —
slide unit into wall-
sleeve. Supply duct on cooling chassis should line up
with supply vent on room cabinet. Weather angles
should need no adjustment.
4.
Install Baffles
- Slide unit back out of wall sleeve.
Locate both sets of baffles from kit bag supplied with
unit. Install only one set of left and right side baffles
on condenser coil by completing following steps:
• Verify baffles selected come in contact with outdoor
louver.
• Verify baffles are directed inward toward center of
coil. See Figure 3.
• Secure baffles tightly into existing holes of condenser
coil using provided screws.
NOTICE
Install correct condenser air baffles or performance
may be impaired.
5.
Apply ½” x ½” open-cell foam strips
around
supply air duct to ensure all conditioned air is delivered
into room. See Figure 3. Failure to do so results in
recirculation of conditioned air through cabinet causing
unit to short cycle and coil to freeze.
6.
Apply 1” x 1” open-cell foam strips
to weather
angle. Prevents outside air from entering around
chassis to room from sides and top of cabinet.
Install strips between wall sleeve and cooling chassis
Figure 4. Verify solid air seal between wall sleeve and
chassis. Air leakage from outdoor to indoor will result
in system problems (example — coils freezing, short
cycling, and constant running of unit).
P/N 240010330, Rev. A [10/15/2013]
11
Made in USA