Installation Guide
3
# 123105
5C. Slant Coil Installation (CM36C34 Only)
1. Remove the coil access panel.
2. Slide the coil and pan assembly onto the shelf provided in the
cabinet. See Fig 5C-1 & 5C-2.
3. Mount the coil by attaching the screw though the coil top bracket
and into the hole provided in the side of the unit casing.
4. Mount the coil access panel.
5. Braze the refrigerant connection and insulate the Suction tube.
6. Connect the primary and secondary condensate drain lines.
Note: Photos are for basic illustration purposes only. Actual equip-
ment conguration may dier from that shown.
7. Metering Devices/Liquid Line Conection
Aspen coils are available with two kinds of metering devices a) ow-
rator or b) TXV. The following instructions are separated into sec-
tions 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 7A-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 owrator body
using two wrenches and un-
screwing with a counterclockwise
motion.
Fig 5C-2Fig 5C-1
7A. Flowrator Coils
1. Ensure suction line connection joints are burr-free and clean.
Failure to do so may increase chances of a leak and introduce con-
taminants to the system. It is recommended to use a pipe cutter to
remove the spun closed end of the suction line.
Do not attempt to touch brazed joints
while hot. Severe burns may result.
!
WARNING
6. Suction Line Connection
2. Swedge (or use a eld supplied coupler) and braze the eld sup-
plied refrigerant suction line tubing to the coil stub using approved
industry practices.
Some Aspen coils may include a Schrader
valve on the suction manifold. Ensure that
the Schrader valve and valve core (where
present) are protected from heat to prevent leakage.
CAUTION
!
The sensing bulb and TXV body MUST be
protected from overheating during braz-
ing. The sensing bulb and TXV body must
be covered using a quench cloth or wet cloth when brazing.
Pointing the brazing ame away from the valve and sensing
bulb provide partial protection only.
!
WARNING
Refer to Furnace/Air Handler manufacturer literature for specic coil
installation guidelines and recommendations.
Fig 5B-1. Horizontal Left Application
Fig 5B-2. Horizontal Right Application
Due to higher designed radiant heat, a six
inch spacer (placed between the furnace
exit and the inlet of the evaporator) should
be installed when matching up an Aspen coil with an ultra-
low NOx (ULN) furnace.
CAUTION
!