HONEYWELL
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HONEYWELL
CLASS “A” COMBINATION VALVES
VQ400M-Series
EN2R9081-C
October 2009
15
REPLACEMENT OF PARTS
Warning
• Take care that only qualified persons carry
out the installation of parts, accessories,
and add on components.
• Follow the installation instructions included
in the package.
• Check that the selected part, accessory or
add-on component is the correct one for
the application in question.
• Replace old gaskets with the new ones
supplied in the package and check for
leakage when the supply is switched on
again.
• After installation and/or replacement has
been completed, a gas leak test must be
carried out.
• Also check the gas valve for satisfactory
operation after fitting accessories.
Table 6 Rectifier boards for VQ400M series.
Gas valve Rectifier board
115V/120V
Rectifier board
230V
VQ420MA
CS020020 CS020070
VQ425MA
CS020020 CS020070
VQ440MA CS020020 CS020071
VQ450MA
CS020020 CS020071
RECOMMENDED ACCESSORIES
There are two different series of flange kits
available. The first series of flange kits consist of: 1
flange with sealing plug, 1 O-rings and 4 screws.
Table 7 Flange kits without strainer.
Gas valve Recommended flange kit
VQ420M KTCOMB15
VQ420M KTCOMB20
VQ425M KTCOMB25
VQ440M KTCOMB32
VQ440M KTCOMB40
VQ450M KTCOMB50
The second series of flange kits consist of: 1 flange
with sealing plug or cast pressure tap, 1 strainer, 1
O-rings and 4 screws
Table 8 Flange kits with strainer.
Gas valve Recommended flange kit
VQ420M KTCOMS15
VQ420M KTCOMS20
VQ425M KTCOMS25
VQ440M KTCOMS32
VQ440M KTCOMS40
VQ450M KTCOMS50
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