Viadrus GRAND G 36, Manual For Operation And Installation, Page: 24 / 60

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Fig. no. 16 Honeywell VK 4100 A 1002 gas valve
Smooth start regulation (starting regime setting)
Honeywell VK 4100Q 2003 valve is by its manufacturer set to the slowest start (see fig. no. 17 – MIN curve).
In case of need to change the opening characteristics the adjustment can be done to the next points and fig.
no. 17.
1. Remove the black cap (see. fig.16 – smooth start regulation), which has a bayonet thread.
2. Under the cap there is the red push button in shape off an arrow.
3. If the arrow is turned against the gas flow direction the start is the slowest (see. fig. no. 17 - curve MIN)
4. If the arrow is turned in the gas flow direction the start is the fastest (see. fig.17 - curve MAX)
Fig.no. 17 Main valve opening characteristics
Inlet gas
overpressure
measuring
Gas inlet into the
valve
vstup plynu do
Regulation screw cover
(internal regulation screw is
accessible after having
unscrewed it)
Gas pressure regulator
Outlet gas overpressure
measuring (pressure on the
burner nozzles)
Gas outlet for ignition pilot
burner
Gas outlet into the burner
Time (sec)
O
u
tl
e
t
g
a
s
o
v
e
rp
re
s
s
u
re
(
m
b
a
r)