4
7. Connecting Ducting
8. Metering Devices/Liquid Line Connection
1.
Secure supply air ducting to the top of the air handler. Canvas con-
nectors are recommended for reducing potential noise transmission.
2.
If the bottom return air opening is
being used, remove the bottom panel.
If a front return is being used, this pan-
el will remain in place.
3.
Secure the return air ducting to the air handler cabinet.
4.
Secure the bracket with
screws sufficient to hold 4X the
weight of the air handler.
5.
Position the air handler on the
wall with the bracket on the air
handler slightly higher than the
bracket secured on the wall.
Lower the air handler so that the
brackets engage. Check the unit
for level, both side to side and
front to back.
Note: Photos are for basic illustration purposes only. Actual equip-
ment configuration may differ from that shown.
Airmark coils are available with two kinds of metering devices a)
flowrator or b) TXV. The following instructions are separated into
sections by metering device.
Use Piston sizes recommended by the
outdoor unit manufacturer whenever pos-
sible. The piston should be sized accord-
ing to the capacity of the outdoor unit.
CAUTION
!
Fig 8A-1. Flowrator assembly components
Failure to install the proper piston can
lead to poor system performance and
possible compressor damage.
!
WARNING
I. Installation
I-1.
Disassemble flowrator body
using two wrenches and un-
screwing with a counterclockwise
motion.
8A. Flowrator Coils
I-3.
Slide the attachment nut onto
the liquid line stub out.
Be aware of the Teflon O-ring. Be sure to
replace the O-ring to attain a proper
seal. (The Teflon O-ring is located between
the two halves of the flowrator)
CAUTION
!
I-2.
Replace the Teflon O-ring
(located between the halves).
Discard Schrader if present.
O-ring
6. Mounting Air Handler To Wall
1.
Install the air handler in a level position side to side and front to
back. If this step is not followed, condensate water damage may oc-
cur. (Both flush mount and recess mount configurations.)
2.
Determine where the air han-
dler is to be placed on the wall.
Place the hanging bracket on
the wall and align the holes of
the bracket with the wall studs.
Level the hanging bracket and
mark the holes to drill pilot holes
for the screws.
3.
Drill the pilot holes.
