Honeywell RA890G, 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