103904-UIM-B-0505
Unitary Products Group
3
4.
Precautions should be taken to locate the unit and ductwork so
that supply air does not short circuit to the return air.
5.
Select a location that will permit installation of condensate line to
an open drain.
NOTE: When the coil is installed in a draw-thru application, it is recom-
mended to trap the primary and secondary drain line. If the sec-
ondary drain line is not used, it must be capped.
The coil is provided with a secondary drain. It should be piped to a loca-
tion that will give the occupant a visual warning that the primary drain is
clogged. If the secondary drain is not used it must be capped.
6.
When an evaporator coil is installed in an attic or above a finished
ceiling, an auxiliary drain pan should be provided under the coil as
is specified by most local building codes.
7.
Proper electrical supply must be available.
8.
Clearances must also be taken into consideration, and provided
for as follows:
a.
Refrigerant piping and connections are located in the front.
b.
Maintenance and servicing through the front or access side
of unit with both sides and rear of unit having zero inch clear-
ance.
c.
Condensate drain lines are connected in the front (clear of fil-
ter).
d.
Filter removal.
e.
When no electric heat is used, the unit as well as all duct
work and plenum are designed for zero clearance to combus-
tible materials.
If electric heat is used, a minimum clearance of 1” must be main-
tained on all sides of the supply air duct and/or plenum continuously
for up to 3’ (See Figure 2).
FIGURE 1: Typical Applications with G2FD Multi-Position Coils
RIGHT HAND APPLICATION
LEFT HAND APPLICATION
UPFLOW
DOWNFLOW
HORIZONTAL
FIGURE 2: Plenum Clearances
MINIMUM CLEARANCE
OF 1” ALL SIDES
FLEXIBLE
DUCT COLLAR
3’
FIGURE 3: Typical Upflow Installation
POWER WIRING
TO MAIN
POWER SOURCE
SUPPLY
AIR
POWER WIRING
CONTROL
WIRING
THERMOSTAT
FILTER
ACCESS
LOUVERED
TO
CONDENSATE
DRAIN
REFRIGERANT
LINES
ELECTRIC HOT WATER HEATER
(Must compl
y
with water heater installation instructions)
