Trane GEHB018 User manual

Crankcase Heater
Wiring
For KIT14712 and KIT14718
Models: GEHB018, GEVB018, KIT14712, KIT14718
Installation
PART-SVN100A-EN

2 Crankcase Heater Wiring PART-SVN100A-EN
Installation
Literature change history
PART-SVN100A-EN (October 2006) manual first release.
Warnings and Cautions
Instructions
 WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote disconnects and discharge all
motor start/run capacitors before servicing. Follow proper lockout/tagout
procedures to ensure the power cannot be inadvertently energized. Verify
with an appropriate voltmeter that all capacitors have discharged. Failure to
disconnect power and discharge capacitors before servicing could result in
death or serious injury.
Note: For additional information regarding the safe discharge of capacitors,
see PROD-SVB06A-EN or PROD-SVB06A-FR.
This KIT includes a relay, wiring assembly, and crankcase (sump) heater. The
following information and wiring digram shown in Figure 1 (p. 3) should be
used to install this device.
HTR06811 - Crankcase heater, 30 Watt, 5.07” diameter, 208/230 Vac or
HTR06851 - Crankcase heater, 30 Watt, 5.07” diameter, 265 Vac
and
RLY01357 - DPDT relay, 24 Vac coil 50/60 HZ, 3 A 277 Vac pilot duty contacts
WIR004682 - Wire harness for adding crankcase heater
1Turn off all power sources to the unit. Follow proper lock out and tag out
procedures.
2Install mechanical components, heater and relay.
NOTICE: Warnings and Cautions appear at appropriate sections
throughout this literature. Read these carefully.
WARNING: Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
 CAUTION: Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may also be used to
alert against unsafe practices.
CAUTION: Indicates a situation that may result in equipment or prop-
erty-damage only accidents.
© 2006 American Standard Inc. All rights reserved

PART-SVN100A-EN Crankcase Heater Wiring 3
Installation
3Connect new blue wire 3 to incoming compressor power and terminal 1
on the new relay
4Connect new black wire 4 to the second incoming compressor power and
terminal 4 on the new relay.
5Connect crankcase heater wires to terminals 2 and 5 on the new relay.
6Connect the new relay coil (double tab terminals) to the terminals 4 and 6
on the customer terminal block. Use wires yellow 1 and orange 2.
Figure 1. Crankcase heater wiring diagram
Crankcase Heater
Relay
Wire relay terminals 1 & 4
to the compressor
contactor incoming power
Connect heater ground wire
to the unit chassis ground
Connect Relay coil leads to
terminal 4 & 6 on the
customer terminal block. The
relay coil terminals have
double tabs.
Connect heater leads
to relay terminals 2 & 5

Installation
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Trane has a policy of continuous product data and product improvement and reserves the right to
change design and specifications without notice. Only qualified technicians should perform the
installation and servicing of equipment referred to in this bulletin.
Literature Order Number PART-SVN100A-EN
File Number SV-SP-PART-SVN100A-EN-1006
Supersedes New
Stocking Location Electronic only