Honeywell vk81 series User Manual

PRODUCT HANDBOOK
1 EN2R-9004 0606R20-NE
Subject to change without notice. All rights reserved.
VK41../VK81..SERIES
GAS CONTROLS FOR COMBINED VALVE AND IGNITION SYSTEM
APPLICATION
The Combined Valve and Ignition (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 VK41../VK81.. series gas controls have
been designed to have the S4565/S4575/S4585 series
ignition control attached directly on to the valve.
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.
The VK41.5/VK81.5 series gas controls (without pilot outlet)
can also be used alone in direct burner ignition applications.
A plug (order number 45.900.441- ) with integrated rectifier
circuit then has to be used on the gas control.
Contents
General page
Description ...................................................................... 2
Features .......................................................................... 3
Dimesional ..................................................................... 4
Application ...................................................................... 6
Technical
Specifications .................................................................. 7
Electrical data .............................................................. 10
Capacity curves ....................................................... 13-18
Performance characteristics .......................................... 19
Installation ..................................................................... 21
Electrical connections and wiring .................................. 24
Adjustments and checkout ............................................ 25
Construction and working principles ............................. 26
Various
Quality assurance statement ......................................... 29
Standards and approvals .............................................. 30
Ordering information ..................................................... 31
Replacement parts and accessories ............................. 32

Honeywell vk81 series Specifications

General

Amperage	0.5 A
Gas Type	Natural Gas
Voltage	24 VAC
Ignition Type	Direct Spark Ignition
Input Voltage	24 VAC
Operating Temperature	-40°C to 79°C
Storage Temperature	-40°C to 79°C
Humidity Range	95% non-condensing

Summary

application

description

valve description

Describes the CVI system's valve component and its functions for ignition, flame supervision, and gas flow regulation.

features

general features

gas control features

functional options

specifications

pressure and flow specifications

Details pressure ranges, capacities, and flow characteristics for regulators and controls.

connection and mounting specifications

capacity

electrical data

performance characteristics

maximum allowable leakage

pressure and flow performance

Covers outlet pressure range, minimum capacity, pilot flow, and valve closing characteristics.

opening and softlite characteristics

Details recovery time, main valve opening, SOFTLITE versions, and adjustable SOFTLITE.

operable voltage range

Details the voltage range within which the gas control functions correctly.

installation

mounting position and gas connections

gas leak test

Details the procedure for performing a gas leak test after installation.

electrical connections and wiring

wiring requirements and connector assembly

flame current check

Guides on how to check flame current and potential issues for reliable operation.

adjustments and checkout

pressure tap and outlet adjustment

softlite and final checkout

construction and working principles

servo pressure regulation

softlite operation and adjustment

ordering information