Honeywell RA117A User Manual
Honeywell, Protectorelay oil burner controls
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PRIMARY CONTROLS CYCLE THE BURNER ON
THERMOSTAT DEMAND AND SHUT DOWN THE
BURNER ON FLAME LOSS OR SYSTEM MALFUNC
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
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.
Form Number 68-0119
©Honeywell Inc. 1991