Trane 2TEE3C31A1000A Installer's Manual page 10

Installer's Guide
2. The trap must be located within 4 feet of the Air
Handler drain outlet connection.
3. It is recommended that a clean-out tee or cross be
installed in the primary drain line for future main-
tenance (See Figure 16 & 17).
4. Do not use reducing fittings in the condensate drain
lines.
blower. Openings where field wiring enters the
cabinet must be completely sealed. Location of
power entry is shown on the outline drawing. Use 2.5"
clear stickers to seal all unused electrical knockouts.
NOTE: If Air Handler is used with or without a heater,
the electrical entry hole as well as any other cabinet
penetrations must be sealed air tighL
5. Slope the drain lines downward a minimum of 1/4" I.
per foot. 1.
6. Insulate the primary drain to prevent sweating
where pipe temperature could meet or fall below
dewpoint temperatures.
7. Provide means for drainage to prevent winter
freeze-up of condensate line.
8. Do not connect the drain line to a closed drain sys-
tem.
9. Use Teflon _'_ tape on the Air Handler drain line con-
neetions! 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 according
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. Sup-
port the condensate piping and traps outside the unit
to prevent strain on the drain coupling.
H. 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 inside blower panel 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 Ampacity
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 following recognized
safety procedures.
If an electric heater is not installed, the Knockout Plate pro-
vided in the Accessory Kit MUST be installed on the air han-
dler and the conduit terminated to it. The electrical connec-
tions are made using the two power leads and ground wire
connections which are located near the discharge of the
.
.
CONTROL WIRING
Connect wiring between indoor unit, outdoor unit
and Comfort Control. The use of color-coded low-
voltage wires is recommended.
A low voltage terminal board is provided for control
wiring, and is located on the left side of the cross
brace in the center of the unit.
Field wiring diagrams are provided which show the
low voltage wiring hookup for a single speed cooling
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.
IMPORTANT:
When supplementary heaters are installed, inspect to
insure that all packaging material has been removed.
J. AIRFLOW ADJUSTMENT
Blower speed changes are made using the User Inter-
face mounted on the communicating Comfort Control
box. The Air Handler control board controls the variable
speed motor.
Table 1 -- Control Wiring
ComfortLink
TM
II Control Wiring
WIRE SIZE MAX. WIRE LENGTH*
18 AWG 250 FT
NEC Class II Wiring - 24 VOLTS
WIRE SIZE MAX. WIRE LENGTH**
18 AWG 150 FT
16 AWG 225 FT.
14 AWG 300 FT.
* The maximum total cable length for the entire Comfort
Control communicating system is 500 ft. 18 AWG.
* * Maximum total length of low voltage wiring fi'om outdoor
unit, to indoor unit, and to Comfort Control.
NOTE: Direct drive motors have bearings which are
permanently lubricated and under normal use lubri-
cation is not recommended.
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