4
18-GD06D1-5
Installer’s Guide
5. Do not use reducing fittings in the condensate
drain lines.
6. Slope the drain lines downward a minimum of 1/4"
per foot.
7. Insulate the primary drain to prevent sweating.
8.
Provide means for drainage to prevent win-
ter freeze-up of condensate line
.
9. Do not connect the drain line to a closed drain sys-
tem.
10. Use Teflon
®
tape on the air handler drain line con-
nections! Do Not Use pipe joint compound or PVC/
CPVC cement!
It is always recommended that an auxiliary drain pan
be installed under a horizontally installed air handler.
Connect the auxiliary drain line to a separate drain
line (no trap is needed in this line) and terminate ac-
cording to local codes.
NOTE:
DO NOT use a torch or flame near the plastic drain
pan coupling.
NOTE:
DO NOT tighten the drain pipe excessively. Support
the condensate piping and traps outside the unit to
prevent strain on the drain coupling.
G. ELECTRICAL — POWER WIRING
1. These Air Handlers are shipped from the factory
wired for 230 volts. The units may be wired for 208
volts. Follow instructions on unit wiring diagram
located on blower housing and in the Service Facts
document included with the unit.
2. The selection of wire and fuse sizes should be made
according to the Minimum Branch Circuit Ampac-
ity and the Maximum Overcurrent Device listed on
the unit nameplate.
3. Field wiring diagrams for electric heaters and unit
accessories are shipped with the accessory.
4. Wiring must conform to National and Local codes.
Ground unit per Local codes with good safety pro-
cedures.
If an electric heater is not installed, the Knockout
Plate provided in the Accessory Kit MUST be in-
stalled on the air handler and the conduit terminated
to it. The electrical connections are made using the
two power leads and ground wire connections which
are located near the discharge of the blower.
EZT-105
Figure 4
NOTE:
If air handler is used with or without a heater, the
7/8" electrical entry hole as well as any other cabinet
penetrations must be sealed air tight.
H. CONTROL WIRING
1. Connect wiring between indoor unit, outdoor unit
and thermostat. The use of color-coded low-voltage
wires is recommended.
2. Field wiring diagrams are provided which show the
low voltage wiring hookup for a single speed cool-
ing only system (with supplementary heaters) and
a heat pump system (with supplementary heaters).
Plug in type electrical connectors are provided for
use with supplementary heaters.
I
MPORTANT:
When supplementary heaters are installed, inspect to
insure that all packaging material has been removed.
NOTE:
Direct drive motors have bearings which are perma-
nently lubri cated and under normal use lubrication
is not recommended.
▲
WARNING
!
TO PREVENT INJURY OR DEATH DUE TO ELECTRICAL
SHOCK OR CONTACT WITH MOVING PARTS, LOCK
UNIT DISCONNECT SWITCH IN OPEN POSITION
BEFORE SERVICING UNIT.
2" MINIMUM
2" MINIMUM
Manufactured traps
Field fabricated trap
2" MIN.
2" MIN.
CAP OR PLUG
Trap must be within 4'
of air handler condensate
drain connection.
Close as possible
Figure 5
