4. Wiring method of the subbase
(1)
(2)
(3)
(4)
●
Wiring Connection to Valve
●
Example of Wiring Connection to External Devices
- 4 -
When the power supply has a voltage side
Ⓗ
and a ground side
Ⓖ
, connect the voltage side
and the ground side to terminal
②
and
⑦
respectively. Refer to Fig. 4 for wiring
connection to the valve.
The main body is installed by a plug-in method. Thus, carry out wiring so that the cables do
not interfere with the installation of the main body.
Fig. 3 shows the terminal layout of the subbase. Fig. 5 shows an example of wiring
connection with external devices.
Ensure that the wiring is correct, and then plug the main body into the subbase and secure
the main body with the main body securing screws.
Fig. 5
Fig. 4
Gas
Installation and Wiring
Valve (closed)
Low-potential side (G)
Burner
Secondary side
Primary side
High-potential side (H)
(Ground)
B
u
rn
er
co
n
tr
o
ll
er
Alarm
Main valve
Air pressure switch
Flame rod
Ground
Burner
Pilot valve
Ignition
transformer
Burner motor
Limit switch
Temperature controller
Power
supply
