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