120 VOLT LUBE OIL MOTOR PROTECTOR 90 SEC Auto Reset. The 3420-104 is designed to replace the obsolete 3420-101 (MC20-1001). The 3420-101 had a non-replaceable, internal fuse for control circuit protection. An inadvertent short in the circuit would cause the internal fuse to fail, requiring the replacement of the complete control. The 3420-104 Uni-Kit contains all the required hardware and instructions to replace MC20-1001 controls with the newer MC20-1101. The 3420-104 Uni-Kit has a field replaceable external fuse for control circuit protection, in the event of output circuit overload. The 3420-104 with the external fuse can be identified by the absence of the "R2" terminal on the control (the "R2" terminal function is now done internally). The 3420-104 Uni- Kit uses a mechanical relay for closure of the "M1-M2" contacts instead of a Triac circuit, which was utilized on the obsolete 3420 101 design. Since the mechanical relay closes "M1-M2" slower than the Triac circuit, unit lockout may occur unless a time delay relay (included) is used in conjunction with the 3420-104 version. This time delay is also available separately - order 30-115. 6 amp replacement fuse also available - order 30-120
Hot surface ignitor with 4-1/2" lead wire, factory model 271A. From furnaces and boilers to rooftop heaters, infrared burners, unit heaters, water heaters and many other types of HVAC equipment, the 41-400 Series Hot Surface Ignitors are made of high-purity recrystallized silicon carbide (Crystar") which combines physical and thermal strength with stable electrical properties. The 41-400 Series are designed to reach ignition temperature(s) within 17 seconds. They have 18-gauge nickel chrome lead wires embedded and metalized in place for maximum holding strength and electrical conductivity. The lead wires are also enclosed with a special high temperature fiberglass insulation providing total electrical protection.
Hot surface ignitor with 5-1/2" lead wire, factory model 271M. From furnaces and boilers to rooftop heaters, infrared burners, unit heaters, water heaters and many other types of HVAC equipment, the 41-400 Series Hot Surface Ignitors are made of high-purity recrystallized silicon carbide (Crystar") which combines physical and thermal strength with stable electrical properties. The 41-400 Series are designed to reach ignition temperature(s) within 17 seconds. They have 18-gauge nickel chrome lead wires embedded and metalized in place for maximum holding strength and electrical conductivity. The lead wires are also enclosed with a special high temperature fiberglass insulation providing total electrical protection.
Hot surface ignitor with 5-1/2" lead wire, factory model 271D. From furnaces and boilers to rooftop heaters, infrared burners, unit heaters, water heaters and many other types of HVAC equipment, the 41-400 Series Hot Surface Ignitors are made of high-purity recrystallized silicon carbide (Crystar") which combines physical and thermal strength with stable electrical properties. The 41-400 Series are designed to reach ignition temperature(s) within 17 seconds. They have 18-gauge nickel chrome lead wires embedded and metalized in place for maximum holding strength and electrical conductivity. The lead wires are also enclosed with a special high temperature fiberglass insulation providing total electrical protection.
Hot surface ignitor with 10-1/2" lead wire, factory model 271Y. From furnaces and boilers to rooftop heaters, infrared burners, unit heaters, water heaters and many other types of HVAC equipment, the 41-400 Series Hot Surface Ignitors are made of high-purity recrystallized silicon carbide (Crystar") which combines physical and thermal strength with stable electrical properties. The 41-400 Series are designed to reach ignition temperature(s) within 17 seconds. They have 18-gauge nickel chrome lead wires embedded and metalized in place for maximum holding strength and electrical conductivity. The lead wires are also enclosed with a special high temperature fiberglass insulation providing total electrical protection.
Hot surface ignitor with 4-1/2" lead wire, factory model 271N. From furnaces and boilers to rooftop heaters, infrared burners, unit heaters, water heaters and many other types of HVAC equipment, the 41-400 Series Hot Surface Ignitors are made of high-purity recrystallized silicon carbide (Crystar") which combines physical and thermal strength with stable electrical properties. The 41-400 Series are designed to reach ignition temperature(s) within 17 seconds. They have 18-gauge nickel chrome lead wires embedded and metalized in place for maximum holding strength and electrical conductivity. The lead wires are also enclosed with a special high temperature fiberglass insulation providing total electrical protection.
Hot surface ignitor with 1-3/8" lead wire 1-3/8" diameter x 2" long ceramic block, factory model 201C. From furnaces and boilers to rooftop heaters, infrared burners, unit heaters, water heaters and many other types of HVAC equipment, the 41-400 Series Hot Surface Ignitors are made of high-purity recrystallized silicon carbide (Crystar") which combines physical and thermal strength with stable electrical properties. The 41-400 Series are designed to reach ignition temperature(s) within 17 seconds. They have 18-gauge nickel chrome lead wires embedded and metalized in place for maximum holding strength and electrical conductivity. The lead wires are also enclosed with a special high temperature fiberglass insulation providing total electrical protection.
Hot surface ignitor with 5-1/4" lead wire, factory model 271NM, this kit includes special mounting adapters. From furnaces and boilers to rooftop heaters, infrared burners, unit heaters, water heaters and many other types of HVAC equipment, the 41-400 Series Hot Surface Ignitors are made of high-purity recrystallized silicon carbide (Crystar") which combines physical and thermal strength with stable electrical properties. The 41-400 Series are designed to reach ignition temperature(s) within 17 seconds. They have 18-gauge nickel chrome lead wires embedded and metalized in place for maximum holding strength and electrical conductivity. The lead wires are also enclosed with a special high temperature fiberglass insulation providing total electrical protection.
Line Voltage Wall Thermostat 50-90 degree F, with positive off. The 500 Series Line Voltage Thermostats are designed for heating and/or cooling applications. They will replace 125, 250, 277 VAC Models. They contain a highly reliable field proven snap-action switch with a fully protected bimetal sensor.
Commercial electric thermostat 60-250F, 60" Capillary, 3/8" X 4-1/2" Nickel Bulb, direct acting (switch contacts open on temperature rise). Factory Model SP-186. The 5300 Series Standard Uni-Kits are designed to replace many different variations of "EA" family of controls. The standard Uni-Kits feature a 2" break-off shaft, grooved at all the standard stem lengths. They have a slotted "Uni-Kit" mounting bracket (type #6) to match various mounting dimensions from 1-1/8" to 1-3/4". Standard Uni-Kits also include a universal 4- way dial, 4-way chrome bezel and adaptors to convert from screw-terminals to quick-connect-terminals. By using the 4-way dial and bezel, a standard Uni-Kit can be mounted in any one of four normal mounting positions and retain the original off position indexing. These standard Uni-Kits are SPST snap-acting controls. UL FILE # E12103
UNIVERSAL NATURAL GAS VALVE 1" INLET X 1" OULET, 720,000 BTU CAPACITY. These 700 Series Gas Valve Uni-Kits® are designed for intermittent pilot, direct spark and hot surface applications. They incorporate a manual valve, pilot valve, and a main gas pressure regulator. Each Uni-Kit includes all the necessary parts and instructions needed to convert to direct spark or hot surface applications. These valves are designed for many residential and commercial applications such as central heating units, wall heaters, boilers and mobile home furnaces. They also have all the wiring connections, manual selector and adjustments easily accessible.
UNIVERSAL NATURAL GAS VALVE 1" INLET X 1" OULET, 720,000 BTU CAPACITY. HAS SLOW OPENING FEATURE FOR SOFT IGNITION. These 700 Series Gas Valve Uni-Kits® are designed for intermittent pilot, direct spark and hot surface applications. They incorporate a manual valve, pilot valve, and a main gas pressure regulator. Each Uni-Kit includes all the necessary parts and instructions needed to convert to direct spark or hot surface applications. These valves are designed for many residential and commercial applications such as central heating units, wall heaters, boilers and mobile home furnaces. They also have all the wiring connections, manual selector and adjustments easily accessible.
ROBERTSHAW UNI-KIT STANDING PILOT GAS VALVE 24 VOLT 1/2" INLET X 3/4" OUTLET STRAIGHT THRU. 240,000 BTU CAPACITY, COMES WITH ONE 1/2" X 3/4" REDUCER BUSHING. For reliability, performance, flexibility and ease of installation and service in
one compact control, Robertshaw's 24 volt combination gas valves are the
answer. These valves feature a manual valve (gas cock), an automatic pilot
safety valve, inlet/outlet screens, pilot outlet, pilot gas filter and pilot adjustment
key. The 700 Series 24 Volt Uni-Kits® have a pressure regulator installed that is set
for natural gas (3.5" W.C.) To convert to L.P. gas, a regulator cover plate is
included. Simply remove pressure regulator and install the regulator cover plate.
MILLIVOLT GAS VALVE 1/2" INLET X 3/4" OUTLET STRAIGHT THRU, 240,000 BTU CAPACITY, 250 MV to 750 MV operating range. COMES WITH NATURAL GAS PRESSURE REGULATOR AND ONE 3/4" X 1/2" REDUCER BUSHING. HAS SLOW OPENING FEATURE FOR SOFT IGNITION. The 700 millivolt gas valves are wall thermostat actuated combination gas valves. These controls combine a manual gas cock, automatic pilot safety valve and a millivolt operator. The automatic pilot safety is separate from the gas cock and provides gas shutoff in case of pilot outage. VALVES CAN BE MOUNTED IN ANY POSITION EXCEPT UPSIDE DOWN
UNIVERSAL MODEL FOR INTERMITTENT PILOT, DIRECT SPARK AND HOT SURFACE IGNITION GAS VALVE 24 VOLT, 1/2" INLET X 3/4" OUTLET WITH OPTIONAL 1/2" SIDE OUTLETS with PLUGS, 150,000 BTU CAPACITY. The 720 Series Valves (7200 IPER) are designed for intermitent pilot ignition applications. The 720 IPER Series Valve incorporates a manual valve, pilot valve, dual automatic valves (2), and a main gas pressure regulator. Uni-Kits are factory-set at the 3.5" W.C. for natural gas, but can be converted to L.P. by installing the regulator conversion kit included. The 720 Series Valves are designed for many residential applications such as central heating units, space heaters, wall heaters, boilers, and mobile home furnaces. The 720 series valve has a compact swing radius of only 3-9/16" to enable it to fit a wide range of OEM replacement applications. It also has all the wiring connections, manual selector, and adjustments readily available on top of the control. To prevent unsafe attempts at repair, special screws are used and replacement parts are NOT available.
HOT SURFACE IGNITION STEP OPENING GAS VALVE 120 VOLT 1/2" INLET X 1/2" OUTLET STRAIGHT THROUGH, HAS CONVERTIBLE REGULATOR FOR NATURAL AND LP GAS, 150,000 BTU CAPACITY. The 720 Electronic Ignition Gas Valves are designed for a wide variety of heating applications. The valves incorporate a manual valve, dual automatic valves and a main gas regulator. Wiring connections, manual selector and adjustments are easily accessible on top of the valve. With a 3-9/16" swing radius, the 720 series lends itself well to replacing many O.E.M. valves. Controls are multiposition and can be mounted in any position (except upside down). To prevent unsafe attempts at repair, special screws are used and replacement parts are NOT available.
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