Installation Guide

2
# 123105
5A. Vertical Upow/Downow Installation (DA, DC, DE )
To position the coil on furnace:
1. Locate the air outlet of the furnace.
2. Adjust anges accordingly and position the coil over or under the
furnace outlet.
3. Place ductwork over the casing.
Refer to Furnace/Air Handler manufacturer literature for specic coil
installation guidelines and recommendations
ü The drain pan has primary (white) and secondary (red) drain
connections. If a secondary drain line is required, it should be run
separately from the primary and should terminate in a highly vis-
ible location. Condensate disposal through the secondary drain line
indicates that the primary drain line is plugged and needs cleaning.
If a secondary drain line will not be provided, plug the secondary
drain. Drain plugs are NOT to be reused without plumbers tape or
putty. Drain line connection should be nger tightened, then turned
no more than one complete turn as needed to ensure a rm connec-
tion. DO NOT overtighten connection or damage may occur.
5. Coil Installation
ü Clean coil ns with degreasing agent or mild detergent and rinse
ns clean prior to installation. Refer to section 10 for coil cleaning/
maintenance guidance.
ü The refrigerant line sizes should be selected according to the rec-
ommendations of the outdoor unit manufacturer.
ü Care must be taken to ensure all connection joints are burr-free
and clean. Failure to do so may increase chances of a leak. It is
recommended to use a pipe cutter to remove the spun closed end of
the suction line.
ü To reduce air leakage, rubber grommets may be present where the
lines pass through the coil case. To avoid damage, remove grom-
mets prior to brazing by sliding over the lines. Use a quenching cloth
or allow the lines to cool before reinstalling the grommets.
ü Use of wet rags/quenching cloth is highly recommended to prevent
weld-related damages to the casing and Schrader valve (if present).
ü Can be installed in either an upow or a downow application.
The coil is manufactured with dry nitro-
gen pre-charge. Release the pressure
through the Schrader valve test port pri-
or to installation. If holding pressure is not present, return
coil to distributor for exchange.
When installing in conjunction with a gas
furnace in a vertical orientation, ensure
that there is 2” gap between the bottom of
the drain pan and the outlet of the furnace.
Coil should be installed on the discharge
side of the furnace
CAUTION
!
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
!
CAUTION
!
Multi-position Coils are shipped from the
factory for specic horizontal applications
(horizontal right or horizontal left). Installer
must ensure that the coil is installed in the orientation for
which it was intended (horizontal drain pan side down). Fail-
ure to follow these instructions might lead to property and
equipment damage.
CAUTION
!
!
WARNING
As mentioned elsewhere in this docu-
ment, in an application involving oil fur-
nace a metal drain pan MUST be used.
Coils installed on an oil furnace must have a minimum of six
inches clearance between the top of the furnace and bottom
of the drain pan.
!
WARNING
Counter ow conguration
To set up coils for downow application, install the two 3” wide by 16”
long galvanized metal plates on the outside of the coil, against the
ns on each side of the coil as shown in Fig. 5A-3. These plates are
supplied with the coil.
Fig 5A-3. Metal Plate location for a Downow/Counterow Application
Fig 5A-1. Upow Application Fig 5A-2. Downow Application
Do NOT exceed 350 cfm/ton of airow for downow applica-
tions.
Use Teon tape to connect the drain lines
to the threads in the drain pan. DO NOT
USE SOLVENT BASED PIPE DOPE. THIS
WILL REDUCE THE LIFE OF THE PAN.
CAUTION
!
5B. Horizontal Installation (DE Only)
Multi-position coils are shipped from the factory such that they can be
installed in both vertical and horizontal applications without changes
to the coil. When installing these coils in the horizontal application,
the details mentioned in this section must be followed.
Multi-position coils come equipped with a horizontal drain pan (Plas-
tic/Metal). The plastic drain pan is protected from high temperatures
by a metal plate at the apex end of the coil.