INSTRUCTION SHEET
1
EN1R-9134 0503R20-NE
Subject to change without notice. All rights reserved
VK41..V(B)/VK81..V(B) SERIES
GAS CONTROLS WITH INTEGRATED 1:1 GAS/AIR REGULATOR FOR
COMBINED VALVE AND IGNITION SYSTEM
APPLICATION
The VK41..V(B)/VK81..V(B) series gas controls with 1:1 gas/
air regulator have been developed for application in domestic
appliances with premix burners and automatic ignition.
For this system, the VK41..V series gas controls have been
designed to have the S4565 series ignition control attached
directly onto the valve.
The combined system then provides programmed safe light
up, flame supervision and regulation of gas flow to the main
burner of the appliance.
The VK41..V(B)/VK81..V(B) series can as well be used as
stand alone in direct burner applications. The plug (order
number 45.900.441-) with integrated rectifier circuit then has
to be used.
The VK41..V(B)/VK81..V(B) series are used in a system
context in conjunction with fan control and a direct spark
ignition (DSI) control.
The VK41..V(B)/VK81..V(B) series are approved in
accordance with european standards.
DESCRIPTION
VK41..V(B)/VK81..V(B) gas controls perform all the functions
required to safely regulate gas flow to the main burner of
domestic central heating equipment, warm air furnaces, back
boilers and water heaters.
VK41..V(B)/VK81..V(B) gas controls hold a first electric on/
off direct operator for opening the safety valve of class B
according to EN161 and a second electric on/off servo
operator of class B or C to EN 161.
The pressure regulator is in accordance with class B
requirement of EN 88.
VK41..V/VK81..V gas controls can handle the three gas
families, manufactured gas, natural gas and LP gas.
VK41..VB/VK81..VB gas controls can handle second family
gas only.
SPECIFICATIONS
Models
VK41.0 series: line voltage gas control
with
pilot burner
connection, two automatic shut off valves and
pilot burner connection for direct spark
ignition (DSI) or hot surface ignition (HSI)
applications,
VK41.5 series: line voltage gas control
without
pilot burner
connection, two automatic shut off valves for
direct spark ignition (DSI) or hot surface
ignition (HSI) applications,
VK81.0 series: low voltage gas control
with
pilot burner
connection, two automatic shut off valves for
direct spark ignition (DSI) or hot surface
ignition (HSI) applications,
VK81.5 series: low voltage gas control
without
pilot burner
connection, two automatic shut off valves for
direct spark ignition (DSI) or hot surface
ignition (HSI) applications,
Suffix letter
V: fast opening, with integrated 1 : 1 gas/air regulation
VB: fast opening, with integrated 1 : 1 gas/air regulation
High capacity
Main gas connection
See table 1, table 2 and table 3.
3
/
8
” and
1
/
2
” straight or elbow flanges are according to the
torsion and bending stress of EN 126 group 2
Connections with G
1
/
2
” or G
3
/
4
” external thread fitted with
nuts according to ISO 228-1 in combination with applicable
sealing(s) withstand the torsion and bending stress of EN
126 group 1
Side outlet (optional) and end outlet (flanged version) can be
fitted direct to a burner manifold.
End outlet or side outlet Quick connection for Mini-Venturi
Pilot gas connection (where applicable)
Standard at end outlet: M8 x 1 for 4 mm outer diameter
tubing.
