Honeywell VS820A User Manual

HoneyweU
THE V800 FAMILY OF COMBINATION GAS CON-
TROLS PERFORMS ALL THE FUNCTIONS RE-
QUIRED IN THE BURNER MANIFOLD ON GAS-FIRED
HEATING EQUIPMENT.
•l Available in 7 capacity ratings.
❑ Suitable for use on domestic equipment from small
individual room heaters to large central heating units.
❑ Provides 3-position (OFF-PILOT-ON) manual con-
trol of gas flow.
❑ Available in standard opening and step opening
pressure regulator models.
❑ Can be mounted from O to 90 degrees from the
vertical position of the gas control knob.
El Controls with the prefix “V” require 30
mV thermo-
couple and suitable pilot burner.
❑ Controls with the prefix
“VS” require 750 mV ther-
mopile generator in a self-generating Powerpile system.
❑ If gas or power supply is interrupted, main gas valve
is closed.
•l In case of pilot flame failure, main valve is closed.
D.T.
Rev. 6-89
Form Number 60-201 9—7
@ Honeywell Inc. 1989

Honeywell VS820A Specifications

General

Brand	Honeywell
Model	VS820A
Category	Controller
Language	English

Summary

Startup and Checkout

Perform Gas Leak Test

Procedure for checking for gas leaks using a soap and water solution after installation or any work.

Light Pilot

Adjust Pilot Flame

Turn On Main Burner

Check and Adjust Gas Input to Main Burner

Instructions for checking and adjusting the main burner gas input, including methods using a meter or manometer.

Standard Pressure Regulator

Procedure for checking and adjusting the standard pressure regulator to match appliance nameplate specifications.

Step-Opening Pressure Regulator

Steps for checking and adjusting the step-opening pressure regulator for correct outlet pressure and lightoff.

Check Safety Shutdown Performance

Safety Shutdown Test

Procedure to verify safety shutdown functionality by testing pilot flame extinguishment and main burner shutoff.

Service

If Pilot Will Not Light

Troubleshooting steps if the pilot burner fails to light, covering gas supply, pilot adjustment, and blockage.

If Pilot Goes Out When Gas Control Knob Is Released

Troubleshooting steps for when the pilot flame extinguishes after the control knob is released, checking knob hold time and voltage.

If Main Burner Will Not Come With Call For Heat

Troubleshooting steps when the main burner does not operate during a call for heat, checking knob position and thermostat.

If Burner Is Overfiring

Instructions To The Homeowner

Essential safety warnings and instructions for homeowners regarding gas appliance operation and maintenance.