TP-6514 9/09
33
Section 1 Installation
Connect customer equipment to terminal strip TB1 on
the relay board, following the markings on the board.
Connect to each relay’s normally open or normally
closed contacts depending on the application. Use size
14 AWG maximum wire for connections to TB1. See
Figure 1-35 and Figure 1-36.
1
GM51403
1. Connect customer equipment to TB1, 14 AWG max.
Figure 1-35
Relay Board Connections
Terminal Label
Description
COMMON FAULT NC
Common fault relay normally
closed contact.
Opens on a fault.
COMMON FAULT COM
Common fault relay common
COMMON FAULT NO
Common fault relay normally
open contact.
Closes on a fault.
AUX RUN NC
Auxiliary run relay normally
closed contact.
Open when generator set is
running.
AUX RUN COM
Auxiliary run relay common
AUX RUN NO
Auxiliary run relay normally
open contact.
Closed when generator set is
running.
Note:
Use maximum 14 AWG wire for TB1 connections.
Figure 1-36
Common Fault and Run Relay Board
Harness Connections
1.10.2 Carburetor Heater
An optional carburetor heater is recommended for
improved cold starting in locations where the ambient
temperature drops below 0
_
C (32
_
F). The carburetor
heater prevents condensation and carburetor icing. The
heater turns on when the temperature at the thermostat
falls below approximately 4
_
C (40
_
F) and turns off when
the temperature rises above approximately 16
_
C
(60
_
F). See Figure 1-37 through Figure 1-39.
The heater thermostat is installed in the cord.
Figure 1-40 shows the location of the thermostat on the
power cord. The heater power cord and thermostat are
located in the generator set housing air intake area/
battery compartment. See Figure 1-33.
Note:
Do not place the heater thermostat inside the
generator
set
engine
compartment.
The
thermostat must be exposed to the ambient air.
The heater requires a continuous source of power.
Single-phase (RES) models: Plug the carburetor heater
into an outlet that supplies continuous 120 VAC power.
Three-phase (TRES) models: The carburetor heater
power is factory-connected to the battery charger.
tp6195
1. Carburetor heater (air cleaner removed to show heater)
2. Carburetor heater power cord
1
2
Figure 1-37
8.5/12 kW Carburetor Heater Location
Summary of Contents for 12RES
Page 4: ...TP 6514 9 09 4 Notes ...
Page 52: ...TP 6514 9 09 52 Section 2 Wiring Diagrams Notes ...
Page 55: ......
