VOKERA Linea Service Manual download pdf (Page 37)

35

Linea

CHECK BOILER

STARTUP

TEST A

DOES

BURNER

LIGHT

MAKE A LINK

BETWEEN PIN M16.TA

AND M16.TA ON

CONTROL BOARD

SWITCH ON BOILER

AND SELECT MODE

TO WINTER C/H

THERMOSTAT AT

MAX.

START

TEST C: CHECK CONTROL

IN C/H MODE

CHECK &/OR

REPLACE 3

WAY VALVE

IS THE

3 WAY VALVE

ON CH

POSITION?

MAINS

PRESENT BETWEEN

M11.1 & M11.2 ON

CONTROL

BOARD

REPLACE

CONTROL

BOARD

C

TURN CH

THERMOSTAT TO

MIN.

DO

BURNER AND FAN

SWITCH OFF

IS

WATER FLOW

TEMPERATURE

>40 ûC

WAIT WATER FLOW

TEMPERATURE

>40 ûC

REPLACE

CONTROL

BOARD

TURN CH

THERMOSTAT AT MAX.

IS

THERE A

VOLTAGE >4 Vdc

BETWEEN TERMINALS

M3.10 & M3.11

ON PCB

CHECK FAN, WIRING

AND CONNECTIONS,

DIFFERENTIAL ANALOG

PRESSURE SWITCH AND

CONTROL BOARD

IS

FAN

ON?

CHECK FLUE

VENTURI TUBE

IS

D.A.P.S.

OK?

REPLACE DIFFERENTIAL

ANALOG PRESSURE

SWITCH

VOKERA

LINEA PLUS AG

Rev. 1 08/03/2000

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

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