TM 10-4610-232-12
h.
Diesel Heater and Carbon Monoxide Monitor Controls. Each diesel fuel heater is equipped with a fuel pump and
fuel filter. The heater and carbon monoxide monitor controls and indicators are shown on Figure 2-10 and listed In Table
2-9. The HEATER POWER SUPPLY ON/OFF switch is item 58 on Table 2-3.
Figure 2-10, Diesel Heater Controls (Sheet 1 of 2)
(MODEL WTA’O ONLY)n
Table 2-9. Diesel Heater Controls (Item numbers are keyed to Figure 2-10)
Item
Control/Indicator
Function
1
THERMOSTATS
The thermostat dials can be set for proper temperature level
within the ISO container Each thermostat controls one heater.
2
AUX
Operates preheater or fan only; OFF in down position.
3
MAIN
Turns heater on START, RUN, or OFF
Controls fuel flow to heater.
4
HTR OPER
Green light indicates when heater is running.
5
CIRCUIT BREAKER
Press after power interruption or overheating automatic shut-
down of heater.
6
HEATER POWER SUPPLY
Controls 120 VAC power supply for heater.
ON/OFF
7
MAIN DISPLAY
Digital read out of concentration of carbon monoxide sensed by
the carbon monoxide (CO) monitor.
8
ALARM 1 INDICATOR
Yellow indicator that lights up when carbon monoxide level in the
van exceeds 25 ppm.
9
ALARM 2 INDICATOR
Red indicator that lights up when carbon monoxide is over 50
ppm.
10
SYSTEM OK
Green indicator that remains lit when system is functioning prop-
erly.
11
AUDIO ALARM
Sounds whenever level of carbon monoxide exceeds 25 ppm or
system failure occurs.
12
ALARM RESET
Silences audio alarm when pressed and resets system after fault.
13
POWER ON/OFF
Turn CO monitor on and off, used during troubleshooting.
14
AC CIRCUIT BREAKER
Circuit breaker for monitor, used during troubleshooting.
2-18 Change 7
