HOT
3A(FUSE)
NEUTRAL
FROSTSENSING
SWITCH
ARRESTER
VARISTOR N
GND
IGNITION
J
®
i SW,TC......i,se__F_
,
J
| WATERFLOW | Q | MODULATING |
| SOLENOID | ||
| SENSOR |
| |
| (_ | ATERFLOW | VALVE |
|
| SENSOR |
|
|
| CiRCUiT |
|
| WATERFLOWCONDEVtCE | Q |
|
| (_ | WATERFLOW |
|
|
| CONTIROLDEVICE |
|
r |
| CIRCUIT |
|
|
|
| |
! |
| COMBUSTION | |
I | CONTROLDEVICE |
| |
| FAN |
I
DRMNG
CIRCUIT
FLAMEROD
DRIVING
CIRCUIT
T
GND
OUTGOINGWATER
_,THERMISTOR HEATEXCHANGER
r_) , THERMISTOR
I
__IT_'_TTU RE
I1_THERMISTOR
L
INDOORMODELONLY
Figure 15
305 & 505 Outdoor Manual | 31 |
