2
B063
1.
SERVICING INSTRUCTIONS
1.1
R
EPLACEMENT OF
P
ARTS
1.2
T
O
G
AIN
G
ENERAL
A
CCESS
- Removing the front panel
- Removing the sealed chamber frontal cover
- Removing the side panels
1.3
A
CCESS TO THE
C
OMBUSTION
C
HAMBER
- Removing the combustion cover
- Removing the burner and jets
- Removing the electrodes
- Removing the main heat exchanger
- Removing the air pressure switch
- Removing the fan
- Removing the venturi device
1.4
S
ERVICING AND
R
EMOVAL OF THE
G
AS
V
ALVE
- Setting the gas pressures
- Removing the spark generator
- Removing the gas valve
1.5
A
CCESS TO THE
W
ATER
C
IRCUIT
- Removing the D.H.W. (secondary) exchanger
- Removing the safety valve
- Removing the automatic air vent
- Removing the main circuit flow switch
- Removing the pump
- Removing the pressure gauge
- Removing the expansion vessel
- Removing the overheat thermostat
- Removing the heating temperature sensor (N.T.C.)
- Removing the D.H.W. temperature sensor (N.T.C.)
- Removing the divertor valve actuator
- Removing the D.H.W. flow switch
1.6
A
CCESS TO THE
C
ONTROL
S
YSTEM
- Checking the fuses
- Removing the time clock
- Removing the P.C.B.
2.
FAULT FINDING
2.1
F
AULT
F
INDING
G
UIDE
(F
LOW
-
CHART
)
3.
ELECTRICAL DIAGRAMS
4.
SHORT SPARE PARTS LIST
TABLE OF CONTENTS
Содержание micro Genius 23 MFFI
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