TP-6803 1/15 35Section 1 Installation
1.12.4 Regulator Heater
Hot engine and exhaust system.
Can cause severe injury or death.
Do not work on the generator set until
it cools.
WARNING
Servicing the engine heater. Hot parts can cause minor
personal injury or property damage. Install the heater
before connecting it to power. Operating the heater before
installation can cause burns and component damage.
Disconnect power to the heater and allow it to cool before
servicing the heater or nearby parts.
The optional regulator heater kit is designed for Model
20RESA and 20RESAL generator sets. T he regulator
heater kit is recommended in addition to the carburetor
heater for reliable engine starting in temperatures below
-- 1 8 _C(0_F). See Figure 1-35 for heater specifications.
Order the 120 V or 240 V kit as appropriate for your
application. See specification sheet G6-126 for kit
details.
120 V Kit 240 V Kit
Heater rating 120 VAC, 60 W
50/60 Hz
240 V, 100W
50/60 Hz
Thermostat
4_C/13_C (40_F/55_F) Snap action
Pad diameter 127 mm (5 in.)
Cord length 610 mm (24 in.)
Figure 1-35 Regulator Heater Specifications
The fuel regulator heater is a 127 mm (5 in.) diameter
round heating pad with a snap action thermostat and a
power cord. Figure 1-37 and Figure 1-36 show the
heater installed on the fuel regulator, which is located on
the air intake side of the generator set. To install the
regulator heater kit, follow the instructions in TT-1569,
provided with the kit.
The fuel regulator heater requires a source of AC power.
Verify that AC power is connected to the generator set
as described in Section 1.9. The circuit must be backed
up by the generator set to provide power at all times.
120 VAC generator sets are equipped with one or two
120 VAC receptacles. A receptacle adapter is included
in the 120 volt heater kit to a llow more than one
accessory to be plugged into the receptacle.
240 volt heater kits use a 3-pin power connector.
Generator sets built after 10/9/2013 with serial numbers
SGM327VFJ or later have a knockout under the
controller for the 240 VAC power connector. 240 volt
fuel regulator heater kits include an adapter harness to
allow connection of two AC accessories.
1. 240 VAC power connection (see knockout detail)
2. Fuel regulator heater pad
1
GM79141-E
2
Knockout Detail
Note: Adapter harness for multiple accessories not shown.
Figure 1-36 Model 20RESA/RESAL 240 Volt Kit
Power Connection
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