Datasheet Content
VR46../VR86.. series
COMPACT AUTOMATIC COMBINATION GAS CONTROLS
PRODUCT HANDBOOK
APPLICATION
The Compact Automatic has been specially developed for
application in domestic central heating boilers, warm air
furnaces or water heater gas appliances.
The Compact Automatic is used in a system context in
conjunction with either a direct spark ignition (DSI),
intermittent pilot (IP) or Hot Surface Ignition control module
and associated devices to provide programmed safe light--up
and supervision of the main burner of an appliance.
Contents
General page
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Technical
Subject to change without notice. Printed in the Netherlands.
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 -- 24
Electrical data low voltage . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electrical data line voltage . . . . . . . . . . . . . . . . . . . . . . . . . 27
Performance characteristics . . . . . . . . . . . . . . . . . . . . . . . 28
Dimensional drawing VR46../VR86..A/C, AB/CB . . . . . . 30
Dimensional drawing VR46../VR86..B/D . . . . . . . . . . . . . 31
Dimensional drawing VR46../VR86..A/C, AA/CA . . . . . . 32
Dimensional drawing VR46../VR86..AB/CB, VA . . . . . . 32
Dimensional drawing VR46../VR86..E/T, EA/TA . . . . . . 33
Installation
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Adjustments and final checkout . . . . . . . . . . . . . . . . . . . . 35
Construction and working principles . . . . . . . . . . . . . . . . . 36
Various
Quality assurance statement . . . . . . . . . . . . . . . . . . . . . . . 39
Standards and approvals . . . . . . . . . . . . . . . . . . . . . . . . . 40
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
EN2R--9003 0108R6--NE
DESCRIPTION
Compact Automatic combination gas controls perform all the Standard conditions
functions required to safely regulate gas flow to the pilot Pinlet 25 mbar nominal pressure, dry air of 20 _C
burner and the main burner of domestic central heating Pambient 1013 mbar
equipment, warm air furnaces, back boilers and water Tambient 20 _C
heaters. Outlet orifice 2.8 mm
Compact Automatic combination gas controls comprise a Flow indication in m3/h
standard body to which a range of sub--assemblies are Recording of outlet pressure with a transducer connected
factory fitted to give various system options. This makes boiler to a 1/2” pipe with a length of 10 times the diameter and
system design much easier as technical specifications and with a short hose at 5 times the diameter.
unit dimensions are the same for all system options. Nominal voltage
Options include servo pressure regulation, throttle valve, Upright position, i.e. the position when the operators are on
(switchable) softlite, electrical high--low control and electrical top.
or mechanical modulation for the complete range of control
applications.
Compact Automatic combination gas controls are available in
line or low voltage versions and in three capacity ratings for
total system versatility. Customer specific voltage models are
also offered
Compact Automatic combination gas control consist of a first
direct electric on/off operator for opening the safety valve of
class A or class B according to EN 161 and a second electric
on/off servo operator valve for opening the main valve of class
B, C or class J according to EN 161; 1997 (for explanation
class J see chapter “Standards and Approvals” page 40).
Compact Automatic combination gas controls are rated for
gas families MFD Group A (G 110), MFD Group B (G 120),
Natural H (G 20), Natural L (G 25) and LP (G 30).
All measurements are carried out under standard conditions,
unless otherwise is indicated.
2 EN2R--9003 0108R6--NE
FEATURES
General Electrical connection options
Specially designed for use with gas appliances with a DSI, Both top face and bottom face AMP electrical connection
HSI or IP system to light the main burner. on electric on/off operator are available.
Incorporates time proven design concepts assuring Single plugs are available with cable and strain relief in
reliability. several versions (IP 40)
ON/OFF control of main burner by electric on/off operator Seperate plugs on first and second electric on/off operator
and electric on/off servo operator. are available (IP 40).
At inlet side an internal fine mesh screen is incorporated in IP 44 connection by means of two DIN connectors is
the Compact Automatic. This screen is not intended to be possible.
removable for cleaning. When flanges are used, Quick connect 6.3 mm fastons on both coils can be applied
removable screens can be placed between the flanges in combination with single cover or separate covers with
and the Compact Automatic. strain relief.
Outlet screen (optional). Line voltage on/off servo operators are provided with a
Various closing force models are available: B + B, B + J, ground screw and washer.
B + C, A + J and A + C.
All adjustments are located on the top of the Compact Functional options
Automatic. Servo pressure regulator provides stable outlet pressure.
9 mm outer diameter pressure tap at inlet and outlet side Pressure feedback ensures constant burner
for checking and adjusting burner pressure. pressure(optional).
A wrench boss is incorporated at the inlet side of the A throttle valve version is available, where unregulated
Compact Automatic for pipe fitting. valves may be employed.
Compact Automatic mounting orientation may be within Softlite option to facilitate a smooth light up of burners.
90_ in any direction from the electric on/off operator upright Switchable softlite option for changing over from one gas
position. to another and vice versa.
Two threaded mounting holes are at the bottom of the Electrical or mechanical modulation.
Compact Automatic for rigid attachment to the appliance. Electrical High--Low control.
Main valve on/off servo operator with DIN faced electrical Incorporated pilot filter (optional).
connection has two threaded holes at the top for mounting Pilot outlet for IP system.
purposes (e.g. cover). Suitable for use with Gas/Air ratio components.
High, medium and low capacity models are available.
Main valve on/off servo operator employs DIN face
electrical connection which are also suitable for AMP
connections.
The coil of the electric on/off operator is field replacable
and can also be positioned in other directions for better
accessability.
Gas connection options
Inlet and outlet connections are straight through and
threaded (standard model).
Inlet and outlet connections can receive flanges.
Side outlet options are available for both main and pilot
gas.
The pilot gas connection for using break away connectors
for various outer diameter tubing is located at the outlet
end of the Compact Automatic (standard model).
The pilot gas side outlet and special end outlet are suitable
for manifold connections.
High capacity model has straight through inlet and outlet
with Ø 23 mm bore.
3 EN2R--9003 0108R6--NE
SPECIFICATIONS
NOTE: Specifications for electrical modulation, mechanical Mounting holes
modulation, electrical high low, switchable softlite and Two M5 mounting holes are located on the bottom of the
other…
