201
23
Honeywell VR 4600 N 4002 valve
with V7335A4014 Modureg
Gas pressure Adjustment
1 - With the burner lit:
2 - Connect suitable pressure gauge to burner test point "B", and then:
3 - Disconnect the wires from coil "C" of the Modureg;
4 - Remove protective cover "D";
5 - Remove coil "C" by opening the coupling spring "I";
6 - Screw the minimum adjustment screw "E" up tightly. (clockwise)
7 - Unscrew lock nut "F" on sleeve "G";
8 - Adjust maximum pressure by rotating sleeve "G"
clockwise to increase pressure and anticlockwise
to reduce pressure;
9 - Tighten sleeve lock but "F" then check that the
pressure is still at the required value;
10 - Adjust minimum pressure by rotating screw "E"
anticlockwise until the required value is reached;
11 - Fit coil "C" by sliding it into the sleeve, pushing and
rotating it lightly until the coupling spring "I" clicks
into place;
12 - Shut down and ignite the burner, checking that the
minimum pressure value is stable;
13 - Reconnect the wires to coil "C" of the Modureg;
14 - Replace protective cover "D";
15 - Turn burner off, remove pressure gauge, close and
test, test point;
D
C
E
G
F
A
B
I
L
Key
A - Test point inlet pressure
B - Burner test point
C - Coil
D - Protective cover
E - Minimum adjustment screw
F - Lock nut
G - Sleeve
I - Coupling spring
L - Adapter (for only G.L.P. version)
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