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Honeywell
PROTECTORELAY
OIL BURNER
CONTROLS
THESE ONE-PIECE, STACK-MOUNTED OIL 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 cycling the burner
and a Pyrostat flame detector for sensing temperature
changes of flue 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 (formerly called intermittent ignition
burners).
□ Used with line voltage or 24V controllers.
□ Safety switch may be manually tripped on all models.
□ On RA116A, lockout occurs if flame is not re-es¬
tablished 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 reset of safety switch is required after ignition
failure completely shuts off main burner.
D.T.
3-91
Form Number 68-0119
©Honeywell Inc. 1991
RA116A
RA117A
RA817A
