This portable multifunction meter has an LCD display and backlight and is versatile enough for testing AC/DC voltage, AC/DC current, resistance and frequency. It features an automatic measuring range and manual measuring range, non-contact voltage detection and True Inrush measurement.

For commercial and domestic refrigeration equipment, room and hood ventilators, evaporative coolers and various other equipment.

Features/Benefits

50/60Hz
Cast aluminum housing up to 16 watts
Hardware included
Overload protected
Permanent lubrication
Rotation determined by viewing opposite shaft end
Single rotation
Single speed, 1550 RPM
Sleeve bearings
Threaded mounting holes
Totally enclosed
UL® Approved
Universal mounting

PATENTED BOV DELIVERY METHOD

HVAC Leak Stop + U/V Dye bag-on-valve (BOV) aerosol does not contain refrigerant.
3 ounce can treats 1.5 to 6 ton units.
Does not contain polymers, will not harm A/C system or components.
Additive package protects against future corrosion.
Compatible with all lubricants & refrigerants.

ACETYLENE B-TANK Refill

ACETYLENE MC Refill

For commercial and domestic refrigeration equipment, room and hood ventilators, evaporative coolers and various other equipment.

Features/Benefits

50/60Hz
Cast aluminum housing up to 16 watts
Hardware included
Overload protected
Permanent lubrication
Rotation determined by viewing opposite shaft end
Single rotation
Single speed, 1550 RPM
Sleeve bearings
Threaded mounting holes
Totally enclosed
UL® Approved
Universal mounting

For commercial and domestic refrigeration equipment, room and hood ventilators, evaporative coolers and various other equipment.

Features/Benefits

50/60Hz
Cast aluminum housing up to 16 watts
Hardware included
Overload protected
Permanent lubrication
Rotation determined by viewing opposite shaft end
Single rotation
Single speed, 1550 RPM
Sleeve bearings
Threaded mounting holes
Totally enclosed
UL® Approved
Universal mounting

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

The Robertshaw 1970 Series Thermocouple Uni-Couple® design allows for installation to virtually all pilot burners. The versatile zip nut may be pushed, pulled or threaded onto the thermocouple's rolled threads for proper positioning in every application.

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

The Robertshaw 1970 Series Thermocouple Uni-Couple® design allows for installation to virtually all pilot burners. The versatile zip nut may be pushed, pulled or threaded onto the thermocouple's rolled threads for proper positioning in every application.

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

The Robertshaw 1970 Series Thermocouple Uni-Couple® design allows for installation to virtually all pilot burners. The versatile zip nut may be pushed, pulled or threaded onto the thermocouple's rolled threads for proper positioning in every application.

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

PATENTED BOV DELIVERY METHOD

HVAC Leak Stop + U/V Dye bag-on-valve (BOV) aerosol does not contain refrigerant.
1 ounce can treats up to 1.5 tons.
Does not contain polymers, will not harm A/C system or components.
Additive package protects against future corrosion.
Compatible with all lubricants & refrigerants.

This COMPUTE-A-CHARGE refrigerant charging/recovery scale features a high capacity of 220lbs (100kg). With accuracy and resolution of 0.25oz (7.39mL) and calibrated to strict NIST standards, this charging scale offers the most advanced load-cell technology, making it an industry-leading scale in HVAC/RR applications.

Reusable – works with all Supercool syringes.
Allows adding products directly to charged A/C systems.

The Robertshaw® 2374-510 Air Pressure Sensing Switch has a glass-filled polycarbonate housing containing a sensing diaphragm and an integral snap-acting switch with three male 90° quick-connect terminals. The switch can sense positive, negative or differential air pressure. The field adjustable set point range of this switch is 0.10” WC to 10.0” WC. Using the switch accessories contained in this kit, the switch can be applied to a wide variety of residential and light commercial HVAC applications.

2374-510 Kit Contents
Air pressure sensing switch
Calibration springs (5 options)
Orifice flows (4 options)
Mounting brackets (2 options)
Calibration tool (hex wrench)

Pillow Block Bearing; 2 Bolt Pillow Block; 1" Bore; 1-7/16" Base to Center Height; Set Screw Mount; Ball Bearing; Relubricatable; Cast Iron; Non-Expansion

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 Robertshaw® 780 Series Pilot Controls Uni-Kits® feature a flame sense circuit that will work equally well on a one rod (local sense) or a two rod (remote sense) application. The automatic recycle features assure that, in the event of flame failure, main gas is disabled and the spark repetition sequence is restarted until pilot gas is ignited. Only after pilot ignition has been re-established can main gas be returned to the burner. The Robertshaw lockout version kits include the capability to shut off all gas to the furnace, should pilot ignition fail to occur after a predetermined time period. The 780-002 provides three tries for ignition. Each ignition period is 90 seconds followed by a six minute time delay between ignition attempts. If the pilot flame is not sensed after three tries, the unit goes into lockout and must be reset at the thermostat.

Features and Benefits

Replaces one rod and/or two rod systems
Reduces truck stock inventory, saving space and money
Includes vent damper adapter assembly
Easy-to-install with complete in-depth installation instructions
Pilot and main valves draw 1 Amp at 0.5 power factor
Combined load at 1.5 Amps at 0.4 power factor
95% relative humidity noncondensing at 104°F

710 Series - Low Capacity
The Robertshaw® 710 Series Low Capacity Gas Valves feature an extremely compact control designed for low capacity and limited space applications. Features include three-position outlets, multi-positional capability and component replaceability.

Features and Benefits

Low capacity with 3-13/16”H x 4-21/32”L x 1-29/32” W dimensions
Gas cock dial marking Off - Pilot - On
Ambient temperature of -40°F to 175°F
Pilot outlet 1/4” tubing
Maximum inlet pressure 14” WC (0.5 PSI)
Standard NEMA terminals
Inlet filtered screen
Various gas types: natural, manufactured, mixed, LP, and LP/air mixtures
Multiple actuators available
RoHS compliant

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

The Robertshaw® Carbide Series Hot Surface Ignitors deliver dependable ignition in heating systems of every description: furnaces, boilers, rooftop heaters, infrared burners, unit heaters, water heaters, and many other types of HVAC equipment.

Features and Benefits

Made from high-purity recrystallized silicon carbide. (Crystar™) which combines physical and thermal strength with stable electrical properties
Designed to reach ignition temperature(s) within 17 seconds
Have 18-gauge nickel chrome lead wires embedded and metalized in place for maximum holding strength and electrical conductivity
Manufactured with lead wires enclosed in a special high-temperature fiberglass insulation providing electrical protection
Operate at 120V AC. Some modules are rated form 208/240V input, however, the voltage to the ignitor is stepped down to 120V AC

SWITCH, UNIV, AIR PRES, 14 IN W.C

Hardware kit included
Senses positive, negative or differential pressures

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.

KIT, UMBRELLA, MAG, 60 IN