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Set-up
Burner Set-up - Gas
Installation
The gas train may be mounted on the
left or on the right side of burner.
IMPORTANT
G200 burners have a ½" NPT female
gas connection.
G400 burners have a ¾" NPT female
gas connection.
Field Supplied
"
Fig. 3
Gas train
6
Gas train
NG flow pressure:
min.
max. 10.5" w.c.
LP flow pressure:
min.
max. 13.0" w.c.
Legend (Fig. 3)
Gas supply and gas flow direction
Gas shut-off valve (field supplied)
Gas supply pressure test point
(field supplied)
Gas train pipe diameter(s)
Burner G200 ½" NPT
Burner G400 ¾" NPT
Maxitrol RV52 with RV5210-13
(brown spring 1.0 to 3.5" w.c.)
gas appliance pressure regulator
Honeywell gas solenoid valve
V8295 N.C. (24 V operated)
Dungs MVD-LE model 200
G200= MVD-LE 205/6 (24 V)
G400= MVD-LE 207/6 (24 V)
Gas burner manifold test point
Viessmann Supplied
Gas piping pressure test
4.0" w.c.
The burner and its gas connection must
be leak-tested before placing the
8.0" w.c.
boiler/burner combination in operation.
The burner and its individual shut-off
valve must be disconnected from the
gas supply piping system during any
pressure testing of that system at
pressures in excess of 0.5 psig/3.5 kPa.
Unions and manifold have been
factory-tested. Leak test must be
repeated during initial operation of
burner by heating contractor. Never
check for gas leaks with an open flame.
Use approved spray liquid or soap water
solution for bubble test.
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