Field Controls SWG-3 Product Manual page 22

HOW THERMAL SAFETY SWITCHES WORK
The Thermal Safety Switch detects the increased heat generated
by the flue gas spillage and deactivates the furnace or boiler.
It will not allow the burner to restart until the switch has been
manually reset.
FIELD CONTACT
MODEL
PART NO. MATERIAL
FTS-4
01 170004 SILVER
FTS-6
01 170006 SILVER
GSK-160A
46086403 SILVER
GSK-250M
46086404 SILVER
GSK-3
46086400 GOLD
GSK-4
46086402 GOLD
SSK-1
461 1 1501 GOLD
SSK-3
461 1 1503 GOLD
TCA-1
46082700 -
LS-550A
46564200 SILVER
WMO-1
46086900 SILVER
SILVER ALLOY,
VPS-1
601400200
CADMIUM FREE
NOTE: SPST = Single Pole Single Throw, SPDT = Single Pole Double Throw
Technical Service: 800.742.8368 •
THERMAL SAFETY SWITCHES
THERMAL SAFETY SWITCHES
LOAD-RATING NORMALLY CLOSED SWITCH
AMP VOLTS OPENS
12
120 AC
140°F
6
240 AC
12
120 AC
180°F
6
240 AC
AUTOMATIC
120AC 160°F
24 VA
MILLIVOLT
24 VA 250°F
24 AC
MILLIVOLT
24 VA 180°F
24 AC
MILLIVOLT
24 VA 200°F
24 AC
MILLIVOLT
24 VA 180°F
24 AC
MILLIVOLT
24 VA 200°F
24 AC
- - -
AUTOMATIC
15 120 AC 550°F
10 120 AC 200°F
FALL OF
20VAC TO
2 AMPS
TEMPERATURE TEMPERATURE
32VAC
BELOW 142°F ABOVE 165°F
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WHEN TO USE A THERMAL SAFETY SWITCH
On Barometric Draft Controls and draft hoods to detect
flue gas spillage and deactivate oil and gas burners.
SWITCH TYPE
CLOSES
DRAFT CONTROL OR DRAFT HOOD MOUNTING
MANUAL
SPST MANUAL RESET. QUICKER RESPONSE TIME
RESET
THAN FTS-6.
DRAFT CONTROL OR DRAFT HOOD MOUNTING
MANUAL
MANUAL RESET. FOR USE ON 24/120/240 VOLT
SPST
RESET
CONVERSION BURNER EQUIPMENT OVER
400,000 BTU/HR.
DRAFT INDUCED FURNACES. ACTIVATES AT 160°.
SPST
RESET
AUTO RESET.
MANUAL
SPST STEAM BOILERS. ACTIVATES AT 250°. MANUAL RESET.
RESET
MANUAL STANDARD GOLD CONTACT MANUAL RESET SWITCH.
SPST
RESET FOR GAS-FIRED MILLIVOLT OR 24 VAC APPLICATION.
MANUAL
MANUAL RESET SWITCH, SAME AS GSK-3.
SPST
RESET
WHERE SLOWER RESPONSE TIME IS A REQUIREMENT.
MANUAL KIT INCLUDES (2) GSK-3 SWITCHES (1) 6 FT. LENGTH
SPST
RESET OF 12 GA WIRE AND SWITCH JUMPER WIRE.
MANUAL KIT SAME AS SSK-2 KIT, EXCEPT SWITCHES
SPST
RESET NOT ENCLOSED IN ELECTRICAL BOX.
REQUIRED ADAPTER FOR OPERATION OF GOLD
- -
CONTACT THERMAL SAFETY SWITCHES WITH 30
MILLIVOLT SYSTEMS (RESIDENTIAL WATER HEATERS).
FOR B-VENT APPLICATIONS. RECOMMENDED FOR
SPDT
LP AND NATURAL GAS FIRED POWER VENTED AND
RESET
NATURAL DRAFT WATER HEATERS.
MANUAL RESET. DESIGNED FOR USE WITH POWER
MANUAL
SPST VENTING AND CHIMNEY VENTED SYSTEMS FOR OIL-
RESET
FIRED APPLICATIONS.
MONITORS VENTING CONDITIONS WHILE THE
APPLIANCE IS OPERATING. IF THE VENT REVERSES
DIRECTION DUE TO DOWN DRAFT, THE VPS WILL
RISE OF
SHUT DOWN THE APPLIANCE AND ALLOW FOR THE
BIMETAL
APPLIANCE TO RESTART IN 1 HOUR TIME. IF THE
THERMOSTAT
UNSAFE VENTING CONDITION PERSISTS,THE VPS WILL
PREVENT THE APPLIANCE FROM OPERATING UNTIL THE
VENTING CONDITIONS ARE SATISFACTORY.
APPLICATION
21