Technical data

38
Linea 24 & 28
REPLACE PCB
REMOVE
JUMPER JP8 ON
PCB
IS
TIMER
JUMPER
ON JP8
ON PCB
IS
VOLTAGE
ACROSS TERMINALS OF
MODULATOR COIL
>10 VDC
IS
VOLTAGE
ACROSS TERMINALS OF
MODULATOR COIL
< 5 VDC
CHECK BOILER
STARTUP
TEST A
DOES
BURNER
LIGHT
OPERATE R/STAT OR
CLOCK, OR LINK
TERMINALS TA & TA
ON PLUG M16
TURN MODE
SELECTOR SWITCH
TO C/H
SET C/H
THERMOSTAT TO
MAX.
START
LINEA 24 / 28
TEST C: CHECK CONTROL
IN C/H MODE
CHECK &/OR
REPLACE
DIVERTER
VALVE
IS THE
DIVERTER VALVE
IN CH
POSITION?
240V
BETWEEN
M11.1 &
M11.2
ON PCB
REPLACE PCB
RESTART THE
TEST
REPLACE GAS
VALVE
COMPLETE
REPLACE WIRE
AND
CONNECTIONS
REPLACE PCB
REPLACE GAS
VALVE
COMPLETE
IS THE
WIRING
AND CONNECTIONS
BETWEEN
MODULATOR
COIL AND
CONTROL
BOARD
OK
IS THE
RESISTANCE OF
MODULATOR COIL
APPROX. 40
OHM
IS
THERE A
VOLTAGE >5 VDC
BETWEEN TERMINALS
M4.1 & M4.2
ON PCB
C
NO
YES
NO
YES
NO
YES
NO
YES
YES
NO
NO
YES
YES
YES
YES
NO
NO
NO