Honeywell RA890G - User Manual

1 60-2035—9
RA890G
Protectorelay™ Primary Control
The RA890G Protectorelay™ control provides
solid state electronic safeguard protection for in-
dustrial and commercial gas, oil, or combination
gas-oil burners.
■ Designed for interrupted ignition with intermittent
pilot for gas burners, and for interrupted or inter-
mittent ignition on oil burners.
■ Used only with a C7027, C7035, or C7044 Mini-
peeper Ultraviolet Flame Detector.
■ Either a line voltage or low voltage controller can
be used.
■ Solid state circuitry eliminates warmup and in-
creases resistance to vibration.
■ Push-to-reset safety switch button is in dust-resis-
tant enclosure.
■ Safe start check prevents start if flame or flame
simulating failure is present.
■ Automatic safety switch lockout if flame fails on
start or if flame is not re-established after a flame
failure.
■ When limit control opens, control de-energizes
ignition and fuel valves, but safety switch lockout
will not occur.
■ Test jack permits readings of flame signal.
■ Easy mounting and removal through use of captive
mounting screws. Durable thermosplastic mount-
ing base.
■ -40°F (-40°C) approved model available.
CONTENTS
Specifications ................................................. 2
Ordering Information ..................................... 2
Installation ..................................................... 3
Operation And Checkout ................................ 5
Service ............................................................ 8
Troubleshooting ............................................. 9
S.Y. • Rev. 1-95 • ©Honeywell Inc. 1995
60-2035-9

Honeywell RA890G Specifications

General

Brand	Honeywell
Model	RA890G
Category	Controller
Language	English

Summary

RA890 G Protectorelay Primary Control Overview

Key Product Features

Highlights solid state, electronic safeguard, gas/oil burner protection, interrupted ignition, and safety features.

RA890 G Product Specifications

Model, Voltage, and Power Ratings

Details TRADELINE/standard models, voltage, frequency, power consumption, and ambient temperature ratings.

Flame Response and Electrical Ratings

Covers flame failure response time, safety switch timing, and electrical load ratings for various components.

RA890 G Ordering Information

How to Specify and Order

Guides on selecting model, voltage, frequency, and accessories for purchasing the control.

RA890 G Certifications and Accessories

Safety and Component Listings

Details UL, CSA, and FM certifications, plus AGA design certification for the control.

Recommended Accessories

Lists testing and operational accessories like microammeter, flame simulator, and test panels.

RA890 G Installation Procedures

Installation Location and Environment

Guides on selecting location based on temperature, humidity, vibration, and weather protection.

Mounting the Subbase

Instructions for correctly mounting the RA890G subbase horizontally or with a slight backward lean.