The Robertshaw® 1980 Series Snap-Fit® Thermocouples offer easy installation into the majority of pilot burners. They are manufactured without complicated adaptors, but with extra insulation that the brass sheath provides under high ambient temperatures.

Features and Benefits

Easy burner installation with attached threaded nut
Stainless steel outer jacket for long life and resistance to heat blistering
Combination of copper and nickel alloys for good electrical conductivity
Mica washer to insulate from shorting conditions
Tinnerman clip included
Various lengths available for multiple applications

Features
Features A421 Standard model
Control Front Panel LCD:
Displays the temperature, parameters, and status and allows you to adjust the backlight intensity for ambient light conditions. Custom icons display the system and control status.
Basic and Advanced Programming Menu:
Provides two levels of parameter adjustment and control setup, allowing you to set up advanced features in one menu and easily adjust basic parameters in the other menu.
On/Off Temperature Adjustment:
Allows you to select the temperature values at which the relay turns On and Off, which automatically defines the Heating or Cooling mode of operation.
Switch-Activated Temperature Setback:
Allows you to shift the On/Off temperature by an adjustable setback value. When a user-supplied switch closes the binary input control circuit, the control operates at the defined setback temperatures.
Adjustable Anti-Short Cycle Delay:
Allows you to select the minimum time the output relay remains off before the next on cycle; avoiding short cycling, hard starts, and nuisance overload outages on compressors and other inductive applications.
Adjustable Sensor Offset:
Allows you to adjust the displayed temperature to the actual sensed temperature.
Optional Restricted Adjustment Mode:
Allows you to restrict the On/Off adjustment to your defined temperature range.
Sensor Failure Mode:
Allows you to select the relay On/Off state in the event of a sensor or sensor wire failure.
Backlight Brightness Level:
Allows you to adjust the LCD backlight intensity.
Extra Features A421 Defrost model
Off-Cycle Defrost:
Allows you to shut off the refrigeration system for defined defrost time interval and frequency. You can also start or stop a manual only defrost offcycle.
Extra Features A421 Timer model
Free-Cooling and Ventilation:
Allows you to adjust for free-cooling and timed-ventilation, and provides over-cooling protection.

Features
Features A421 Standard model
Control Front Panel LCD:
Displays the temperature, parameters, and status and allows you to adjust the backlight intensity for ambient light conditions. Custom icons display the system and control status.
Basic and Advanced Programming Menu:
Provides two levels of parameter adjustment and control setup, allowing you to set up advanced features in one menu and easily adjust basic parameters in the other menu.
On/Off Temperature Adjustment:
Allows you to select the temperature values at which the relay turns On and Off, which automatically defines the Heating or Cooling mode of operation.
Switch-Activated Temperature Setback:
Allows you to shift the On/Off temperature by an adjustable setback value. When a user-supplied switch closes the binary input control circuit, the control operates at the defined setback temperatures.
Adjustable Anti-Short Cycle Delay:
Allows you to select the minimum time the output relay remains off before the next on cycle; avoiding short cycling, hard starts, and nuisance overload outages on compressors and other inductive applications.
Adjustable Sensor Offset:
Allows you to adjust the displayed temperature to the actual sensed temperature.
Optional Restricted Adjustment Mode:
Allows you to restrict the On/Off adjustment to your defined temperature range.
Sensor Failure Mode:
Allows you to select the relay On/Off state in the event of a sensor or sensor wire failure.
Backlight Brightness Level:
Allows you to adjust the LCD backlight intensity.
Extra Features A421 Defrost model
Off-Cycle Defrost:
Allows you to shut off the refrigeration system for defined defrost time interval and frequency. You can also start or stop a manual only defrost offcycle.
Extra Features A421 Timer model
Free-Cooling and Ventilation:
Allows you to adjust for free-cooling and timed-ventilation, and provides over-cooling protection.

Pillow Block Bearing; 2 Bolt Pillow Block; 1-11/16" Bore; 2-1/8" Base to Center Height; Set Screw Mount; Ball Bearing; Relubricatable; Cast Iron; Non-Expansion

680 Series
Enhance the performance and safety of your HVAC system with the Robertshaw® Trane Direct Replacement Flame Sensor with a 90° Bend.

Designed as an exact match for Trane's SEN01114.

Will fit over 500 Trane furnace series, AUC1D1, AUD1, AUD2, TDC1, TDD1, TDD2, TDH1, TDH2, TDH3, TDHM, TUD1, TUD2, TUE, TUH.

These BearKat medium frameless polycarbonate safety glasses with 99.99% UVA/B protection have a wraparound frame that comes in black/clear. They have an anti-fog, Duramass anti-scratch clear lens that meets the CSA Z94.3 standard. These unisex glasses have a hybrid padded clear arm with integral sideshields and a non-slip temple.

Pillow Block Bearing; 2 Bolt Pillow Block; 3/4" Bore; 1.311" Base to Center Height; Set Screw Mount; Ball Bearing; Relubricatable; Cast Iron; Non-Expansion

Pillow Block Bearing; 2 Bolt Pillow Block; 1-3/16" Bore; 1-11/16" Base to Center Height; Set Screw Mount; Ball Bearing; Relubricatable; Cast Iron; Non-Expansion

The Ranco® Wide Range O Series Temperature Controls provide a wide selection of controls customized to allow users exact adjustments within manufacturers' limits. The Ranco O Series features heavy-duty plated steel frames, non-conductive covers with front-located captive cover screws, raised screw terminals for fully accessible wiring, and large easy-to-read scales. Recognizing the need for flexibility in design of refrigeration equipment, these controls offer a wide selection for such products as self-contained refrigerators, freezers, coolers, walk-in units, and refrigeration display cases.

Features and Benefits

Maximum adjustment accuracy with 7 revolution range adjustment screws
NEMA 1 enclosure with non-conductive cover
Universal mounting and compact design
Laser-welded bellows for extended life
Wide range adjustable differential
The O60 Series have these additional features:

10 times setting sensitivity of most other wide range controls (O60 series only)
Gas-filled, nonposition-sensitive bulb (O60 series only)
Cap included on all Australia temperature controls. Optional for all other regions.

The Robertshaw® 1751 Series Add-on Pressure Regulator Kits are available for use on the following factory model types: 7000, 7010, 7100, 7200 and 7222. Each 1751 pressure
regulator kit provides straight-line regulation and includes all the necessary parts including instructions to convert a specific factory model gas valve.

Features and Benefits

Converts natural gas to LP
Not for use with hydraulic models which cannot be field converted
Includes all necessary parts for easy regulation conversion

The 1830 Series Pilot Uni-Kit® models are designed to be used with all Robertshaw® and most competitive thermocouples. Uni-Kit models include an adaptor that converts a threaded thermocouple/thermopile model 2CH to a snap-in thermocouple type, model 2C.

Features and Benefits

Many flame pattern types available
Thermocouple or thermopile options
Spark electrode available
Horizontal or vertical gas inlet
Several mounting bracket types available
Aerated pilots with non-linting characteristics

The 1830 Series Pilot Uni-Kit® models are designed to be used with all Robertshaw® and most competitive thermocouples. Uni-Kit models include an adaptor that converts a threaded thermocouple/thermopile model 2CH to a snap-in thermocouple type, model 2C.

Features and Benefits

Many flame pattern types available
Thermocouple or thermopile options
Spark electrode available
Horizontal or vertical gas inlet
Several mounting bracket types available
Aerated pilots with non-linting characteristics

MICRO LEAK DETECTOR
The Original Big Blu leak detector is used by OEM’s and industry professionals worldwide. This is the only bubble solution capable of detecting gas leakage down to 0.65 ounces per year. Use on any gas including Oxygen.
NSF certified for use around food
Non-Corrosive
Detects Micro Leaks down to 0.65 oz/year
Safe of any type of gas

Combines the SPM-100 and the PRB-KIT and includes a brass gas fitting.

The P70 and P170 Controls for high pressure applications are designed primarily for high pressure cut-out control, head-pressure control, and condenser fan cycling control on commercial refrigeration and air conditioning applications.

The A421 Series Electronic Temperature Controls are single-stage controls with a single-pole, double-throw (SPDT) output relay. A421 Controls feature a bright backlit LCD with adjustable brightness and a three-button touchpad interface that can be set up to restrict user adjustments. An LED indicates the output relay's On/Off status. Standard A421 Series control modules have simple On and Off temperature settings for heating or cooling, an adjustable anti-short cycle delay, temperature setback, and sensor offset capability. The temperature control range is -40 to 212°F or -40 to 100°C. The A421 controls are available either in Type 1 (NEMA), IP20 (CE), high-impact plastic enclosures suitable for surface or DIN rail mounting or in Type 4X (NEMA), IP67 (CE) watertight, corrosion resistant surface mount enclosures.

The A421 Electronic Temperature Control can be used to control a wide variety of single-stage refrigeration or HVAC equipment.Sample temperature control applications can be found inside the product data sheet.

The Robertshaw® 2374 Series Adjustable Air Sensing Switches are designed to replace a wide variety of air sensing switches found in residential and light commercial applications including furnaces, electronic air cleaners and humidifiers. Two models are currently available with adjustable ranges. Both models are provided with an SPDT switch that can be actuated by positive or negative pressure or by pressure differential. Highly accurate, these switches are practically insensitive to temperature change with an operating temperature range of -40°F to 190°F (-40°C to 88°C). Each switch includes mounting hardware and an adjustment tool for easy installation and calibration.

Features and Benefits
Field adjustable control set point
Air sample line connectors will accept 1/8”, 1/4” or 3/8” tubing
Electrical connection is 1/4” spade
Vertical operating mounting position for diaphragm
UL File Number MH6213, CSA File Number LR18754

The Robertshaw® 2374 Series Adjustable Air Sensing Switches are designed to replace a wide variety of air sensing switches found in residential and light commercial applications including furnaces, electronic air cleaners and humidifiers. Two models are currently available with adjustable ranges. Both models are provided with an SPDT switch that can be actuated by positive or negative pressure or by pressure differential. Highly accurate, these switches are practically insensitive to temperature change with an operating temperature range of -40°F to 190°F (-40°C to 88°C). Each switch includes mounting hardware and an adjustment tool for easy installation and calibration.

Features and Benefits
Field adjustable control set point
Air sample line connectors will accept 1/8”, 1/4” or 3/8” tubing
Electrical connection is 1/4” spade
Vertical operating mounting position for diaphragm
UL File Number MH6213, CSA File Number LR18754

The Ranco® Dual Pressure Controls combine the functions of a single high-pressure limit control and a single low-pressure control in one unit with a single pole, single throw (SPST) switch.

Features and Benefits

Convertible feature allows selection of manual or reset function when operating at high pressure (O12‑4833/O12-4834)
A wide range of high-pressure manual or automatic reset controls can be replaced (O12-4833 or O12‑4834)
A high-pressure limit is combined with suction pressure sensing to provide temperature control and/or pump down
High-limit adjustment screw
Low-pressure differential and range adjusting screws
Selector screw for manual or automatic
Reset button
Low-pressure scale plate
High-impact plastic cover with center mount screw
High-pressure scale plate
Super Cap® capillary protection system
Color-coded for easy identification of pressure line
High-side capillary flare nut (silver)
Low-side capillary flare nut (brass)

The 1830 Series Pilot Uni-Kit® models are designed to be used with all Robertshaw® and most competitive thermocouples. Uni-Kit models include an adaptor that converts a threaded thermocouple/thermopile model 2CH to a snap-in thermocouple type, model 2C.

Features and Benefits

Many flame pattern types available
Thermocouple or thermopile options
Spark electrode available
Horizontal or vertical gas inlet
Several mounting bracket types available
Aerated pilots with non-linting characteristics

This adapter features a 1/4in SAE Male x 1/4in SAE Male Union connection.

The P70 and P170 Controls for low pressure applications are designed primarily for low pressure cut-out control, pump-down control, and capacity control on commercial refrigeration and air conditioning applications.

Big Blu Sub Zero is the most durable product of its kind for leak detecting under extreme conditions. Our temperature rating is -30°F to 200°F. Bubbles and foam will keep regenerating where other low temp products give out, freeze or become gelatinous. Sub Zero maintains a uniform viscosity over this temperature range remaining fluid on the coldest of days while remaining bulky and resistant to evaporation on hot discharge lines. Technicians who are familiar with the performance of The Original Big Blu solution will appreciate how we “kicked it up a few more notches”.

ACETYLENE B-TANK Refill

The 1830 Series Pilot Uni-Kit® models are designed to be used with all Robertshaw® and most competitive thermocouples. Uni-Kit models include an adaptor that converts a threaded thermocouple/thermopile model 2CH to a snap-in thermocouple type, model 2C.

Features and Benefits

Many flame pattern types available
Thermocouple or thermopile options
Spark electrode available
Horizontal or vertical gas inlet
Several mounting bracket types available
Aerated pilots with non-linting characteristics

The 1830 Series Pilot Uni-Kit® models are designed to be used with all Robertshaw® and most competitive thermocouples. Uni-Kit models include an adaptor that converts a threaded thermocouple/thermopile model 2CH to a snap-in thermocouple type, model 2C.

Features and Benefits

Many flame pattern types available
Thermocouple or thermopile options
Spark electrode available
Horizontal or vertical gas inlet
Several mounting bracket types available
Aerated pilots with non-linting characteristics

The 1830 Series Pilot Uni-Kit® models are designed to be used with all Robertshaw® and most competitive thermocouples. Uni-Kit models include an adaptor that converts a threaded thermocouple/thermopile model 2CH to a snap-in thermocouple type, model 2C.

Features and Benefits

Many flame pattern types available
Thermocouple or thermopile options
Spark electrode available
Horizontal or vertical gas inlet
Several mounting bracket types available
Aerated pilots with non-linting characteristics