Honeywell RA117A User Manual

Honeywell, Protectorelay oil burner controls

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Honeywell

PROTECTORELAY

OIL BURNER

CONTROLS

THESEONE-PIECE.STACK-MOUNTEDOIL

BURNER

PRIMARY CONTROLS CYCLE THE BURNER ON

THERMOSTAT DEMAND AND SHUT DOWN THE

BURNER ON FLAME LOSS OR SYSTEM MALFUNC­

TION.

Combine a Protectorelay unit for cyciing the burner

and a Pyrostat flame detector for sensing temperature

changes of fiue gases up to 1000° F [556° C].

RA116A is used with intermittent ignition burners

(formerly called constant ignition burners).

RA117A and RA817A are used with interrupted

ignition burners (formeriy cailed intermittent ignition

burners).

Used with line voltage or 24V controllers.

□ Safety switch may be manually tripped on all models.

On RA116A, lockout occurs if fiame is not re-es-

tabiished during safety switch timing.

On RA117A and RA817A, flame or power failure is

followed by a one minute (approximate) scavenging
period and one attempt to re-establish flame. Lockout

occurs if flame is not re-established.

Manual resetof safety switch is required after ignition

failure completely shuts off main burner.

RA116A
RA117A

RA817A

D.T.

3-91

Form Number 68-0119

©Honeywell Inc. 1991

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