Trane Precedent WHJ150A Installation, Operation And Maintenance Manual page 24

Installation
• Connect properly sized and protected power supply
wiring to a field-supplied/installed disconnect switch
and to the main power terminal block (HTB1) in the unit
control panel.
• Install proper grounding wires to an earth ground.
Electric Heat Requirements
• Verify that the power supply complies with the electric
heater specifications on the unit and heater nameplate.
• Inspect the heater junction box and control panel;
tighten any loose connections.
• Check electric heat circuits for continuity.
Low Voltage Wiring
Mount the indoor thermostat, zone sensor, or
programmable zone sensor in accordance with the
corresponding thermostat installation instructions. Install
color-coded, weather-proof, multi-wire cable according to
the field wiring instructions.
Note: Refer to thermostat or zone sensor wire installation
guide for proper wire gauge.
Condensate Drain Configuration
An evaporator condensate drain connection is provided on
each unit. Refer to the ductwork section in the Installation
chapter for the appropriate drain location.
A condensate trap must be installed at the unit due to the
drain connection being on the "negative pressure" side of
the fan. Install the P-Trap using the guidelines in
18, p. 24.
A condensate drain line must be connected to the P-Trap.
Pitch the drain lines at least 1/2 inch for every 10 feet of
horizontal run to assure proper condensate flow. Do not
allow the horizontal run to sag causing a possible double
trap condition which could result in condensate backup due
to "air lock".
Figure 18. Condensate trap installation
Note: Minimum if unit static is higher trap must be taller to
drain appropriately.
24
Figure
38.1
Filter Installation
The quantity of filters is determined by unit size. Access to
the filters is obtained by removing the filter access panel.
Note: Do not operate the unit without filters.
Field Installed Power Wiring
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury.
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements
for field wiring installation and grounding as
described in NEC and your local/state/national
electrical codes.
An overall dimensional layout for the field installed wiring
entrance into the unit is illustrated in the Dimensions and
Weights chapter. To insure that the unit's supply power
wiring is properly sized and installed, follow the following
guidelines.
Verify that the power supply available is compatible with
the unit's nameplate ratings. The available supply power
must be within 10% of the rated voltage stamped on the
nameplate. Use only copper conductors to connect the
power supply to the unit.
NOTICE
Use Copper Conductors Only!
Failure to use copper conductors could result in
equipment damage as the equipment was not
designed or qualified to accept other types of
conductors.
Important: If the unit is not equipped with an optional
factory installed non-fused disconnect switch
or circuit breaker, a field supplied disconnect
switch must be installed at or near the unit in
accordance with the National Electrical Code
(NEC latest edition).
PKGP-SVX011A-EN