PRODUCTION HANDBOOK
1
EN2R-9031 0402R15-NE
Subject to change without notice. All rights reserved
S4565, S4575 AND S4585
IGNITION CONTROLS FOR COMBINED VALVE AND IGNITION SYSTEM
APPLICATION
The
C
ombined
V
alve and
I
gnition (
CVI
) system has been
developed for application in gas fired domestic central
heating boilers, combi boilers and warm air furnaces or water
heater appliances with an automatic ignition system.
For this system, the S4565, S4575 and S4585 ignition
controls are used in conjunction with the VK41.. series gas
controls to provide and optimised safety sub-system for
programmed safe light up and flame supervision of the main
burner of the appliance
The combined system then provides programmed safe light
up, flame supervision and regulation of gas flow to the main
burner and/or pilot burner of the appliance.
NOTE:
The
C
ombined
V
alve and
I
gnition (
CVI
) product concept consists of a specially designed gas valve family in
combination with a dedicated ignition controls family. This product handbook describes the CVI ignition controls family
S4565, S4575 and S4585 for use in combination with the CVI gas control family VK41.. For details of the CVI gas
controls please refer to Product Handbook EN2R-9004. For an up-to-date copy please contact your nearest
Honeywell office. For glossary of terms, abbrevations and symbols see document EN2R-9039