EX38DT Installation and Operation Manual
53
9.3 Ladder Diagram
Figure 65: Ladder Diagram
Mark
Parts Name
MS Main
Switch
R.TH Room
Thermistor
TF1,2
Thermal Fuse 1, 2
F Fuse
ER Electrode
POV
Modulating Solenoid Valve
FR1,2
Flame Rod 1, 2
CF Convection
Fan
FM
Convection Fan Motor
Mark
Parts Name
SP Sparker
OH.TH1,2 Over Heat Thermistor 1, 2
SV1~3
Solenoid Valve 1~3
BL
Combustion Fan Motor
FCC Fan
Control
Circuit
B1~4 Burner
1~4
PS Pressure
Sensor
W.TH Wall
Thermostat
Main CPU Central Processing Unit
Sub CPU Central Processing Unit for Safety
A: DC5V
B: DC12V
C: DC15V
D: DC24V
E: DC170V
F: AC24V
Summary of Contents for EX38DT
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Page 42: ...42 EX38DT Installation and Operation Manual Exploded View of Service Parts Figure 59 ...
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Page 44: ...44 EX38DT Installation and Operation Manual Exploded View of Service Parts Figure 61 ...
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