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

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