PRODUCT HANDBOOK
1
EN2R-9053 0408R11-NE
Subject to change without notice. All rights reserved.
S4965 SERIES
COMBINED VALVE AND BOILER CONTROL SYSTEMS
APPLICATION
The S4965 boiler controls have been developed for application
in gas fired domestic appliances.
The S4965 boiler controls are used in conjuction with the
VK41.. series modulating or non modulating gas controls. (see
Product Handbook EN2R-9025 and EN2R-9004) They provide
both an optimised safety sub-system for programmed safe
light-up and flame supervision of the main burner of the
appliance and a boiler comfort control sub system for
temperature, pump, and 3-way valve control
Bi-directional communication with a MMI enables
comprehensive diagnostics and operation.
For glossary of terms, abbrevations and symbols see
document EN2R-9039
Contents
General
Description ......................................................................... 2
Features ............................................................................ 3
Dimensional drawing S4965 boiler control ........................ 4
Technical
Specifications .................................................................... 5
Connection diagram .......................................................... 7
Timing diagram ................................................................ 8
Description of LOCON ...................................................... 9
Description of SQUARE ................................................... 10
General considerations ................................................... 11
Electrical connections and wiring .................................... 12
Adjustments and final checkout ...................................... 13
Various
EMC guidelines ............................................................... 14
Quality assurance statement ........................................... 15
Standards and approvals ................................................ 15
Ordering information ....................................................... 16