36
MULFUNCTIONS AND ADJUSTMENTS
Should the boiler shut down it must be reset by rotating functions selector switch to position A.
B: see TEST functions at “Gas pressure adjustments with Honeywell VK 4105 valve”
B
G30/G31
LPG
G20
Natural Gas
(post.circ. off)
heating
post.circ.
on 2,5 min.
Heating timer off
heating timer on 2,5 min.
JP5
JP4
JP3
JP1
Resistor jumper cut, floor heating temp. set to 30/40°C.
Resistor jumper uncut, temperature 35/80°C
Legend:
OffOn
JP6
Present: bi-thermal function
Absent (cut): mono-thermal function
cards only:
4.56035.0
4.56040.0
RLA
R max.
Increase
Increase
Slow ignition adjustment
Max. heating power adjustment
A
Constant light: Ignition shutdown
Fast flashing light: TST shutdown
Slowly flashing light:
Air pressure switch
(MCS)
Constant light: No water
Fast flashing light: Sensor fault
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