Brochure

www.white-rodgers.com
79
FURNACE
MERCURY FLAME SENSORS
Prevent Gas Flow to Main Burner if Pilot Flame is Not Burning or Is
Insufcient to Properly Ignite Main Burner
FEATURES
• These sensors combine a rugged Snap-Action switch and powerful mercury
actuated thermal element.
• May be used with natural, manufactured or mixed gases and with LP gases where
means are provided for obtaining automatic pilot gas shut-off.
• Switch may be conveniently mounted in any position.
• Cover is easily removed, making switch terminals readily accessible.
• No button to depress – Sensors are recycling type which require relighting or
possible restoration of proper gas pressure to return to operation.
SPECIFICATIONS
Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . Contacts close approximately 60 seconds
after pilot is ignited; open approximately
40 seconds after ame is extinguished
Agency . . . . . . . . . . . . . . . . . . . . . . . . . . . U.L. recognized and C.S.A. certied,
A.G.A. design certied & C.G.A. certied
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . 2
3
/
4
”H x 2
1
/
16
” W x 1
7
/
8
”D
Model Element Electrical Rating
Number Length 120 VAC 240 VAC 30 VAC
3046-5 48” 125 VA 125 VA 90 VA
PLUG-IN TYPE MERCURY FLAME SENSORS
Designed for use with White-Rodgers Diaphragm, “Cushioned Power”
or “Silent Knight” Gas Valves having Plug-In Receptacle
FEATURES
• Plug-in feature requires no additional electrical connections or mounting devices.
• Sensor combines a rugged Snap-Action SPDT switch and powerful mercury
actuated thermal element.
• May be used with natural, manufactured or mixed gases and with LP gases where
means are provided for obtaining automatic pilot gas shut-off.
• No button to depress – Sensors are recycling type which require relighting or
possible restoration of proper gas pressure to return to operation.
• The SPDT switch can energize ignitor circuit to relight pilot (as with roof top units).
SPECIFICATIONS
Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . Contacts close approximately 60 seconds
after pilot is ignited; open approximately
40 seconds after ame is extinguished
Agency . . . . . . . . . . . . . . . . . . . . . . . . . . . U.L. recognized, A.G.A. design certied
and C.G.A. certied
Model Element Electrical Rating
Number Length 120 VAC 240 VAC 30 VAC Comments
30A46-5 48” 125 VA 125 VA 90 VA stud mount element
30A46-105 12” 125 VA 125 VA 90 VA sleeve over element,
no stud mount
30A46-5
3046-5
GAS BURNER
CONTROLS