Solutions

Temperature Control Solutions

For full-featured, accurate electronic control for a range of applications, Robertshaw’s temperature control solutions are the top choice for OEMs around the world for both residential and commercial applications.

RTC Series Electronic Temperature Controls

Application: Commercial Refrigeration

The Ranco® RTC Series Electronic Temperature Control is engineered to manage various refrigeration applications. With its wide temperature range, NTC nd PTC probe inputs, and ambient storage humidity range, the Ranco RTC Series can be used in commercial refrigeration display cases, coolers and chillers. This series has intelligent menus and easy browsing for quick and intuitive configurations. Key shortcuts provide direct access to the most common functions to speed up typical operations.In addition, HACCP and installation status information is stored in memory to help maintain the control settings.

Features and Benefits:

Maximum flexibility, with a large number of electronic, mechanical and appearance combinations
Built-in universal power supply for installation anywhere in the world
Configurable PTC/NTC temperature sensor inputs
Ability to integrate Modbus communications
Standard panel format with white display (in addition to monochrome green and blue)
One-relay controller up to 2 HP with 5mm terminals for all inputs and outputs
Automated processes for the configuration, calibration and verification of the entire controller in approximately 20 minutes

Specifications:

Temperature range from -58°F to 212°F ( –50°C to 100°C)
Electrical Rating: 90-240V AC, 120V AC, 230V AC
Relay Function: N/A; 1 Relay SPDT 16A; 2 Relay (1) SPDT 16A (1) SPDT 8A; 2 Relay (1) SPDT 16A, (1) SPDT 8A; 3 Relay (1) SPDT 16A, (1) SPDT 8A, (1) SPDT 6A or 4 Relay (1) SPDT 16A, (1) SPDT 8A, (2) SPDT 6A
Temperature range from -58°F to 212°F ( –50°C to 100°C)
Electrical Rating: 90-240V AC, 120V AC, 230V AC
Relay Function: N/A; 1 Relay SPDT 16A; 2 Relay (1) SPDT 16A (1) SPDT 8A; 2 Relay (1) SPDT 16A, (1) SPDT 8A; 3 Relay (1) SPDT 16A, (1) SPDT 8A, (1) SPDT 6A or 4 Relay (1) SPDT 16A,(1) SPDT 8A, (2) SPDT 6A
Available in multiple diameters
Used with natural, LP, mixed or manufactured gases
The location of the burner porting is variable and can be supplied in one to seven row configurations of incrementally positioned ports
Various output options available depending on application and design

Agency Certifications:

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ETC Series Electronic Temperature Controls

Application: Commercial Refrigeration

The Ranco® ETC Series Electronic Temperature Control is a full-featured electronic replacement for electromechanical temperature controls used in many commercial refrigeration applications. The ETC is designed with application flexibility in mind. Its easy four-step set-up and white backlight display plus extensive settings and voltage options offer OEMs an all-in-one control for a wide range of installations.

With its wide temperature range, one and two stage capability, selectable heating/cooling modes and multi-voltage input, the ETC is designed to provide application flexibility.

Features and Benefits:

Maximum flexibility, with a large number of electronic, mechanical and appearance combinations
Built-in universal power supply for installation anywhere in the world
Configurable PTC/NTC temperature sensor inputs
Ability to integrate Modbus communications
Standard panel format with white display (in addition to monochrome green and blue)
One-relay controller up to 2 HP with 5mm terminals for all inputs and outputs
Automated processes for the configuration, calibration and verification of the entire controller in approximately 20 minutes
120/208/240V AC and 24V AC models available
Wide differential adjustment from 1°F to 30°F (-17°C to -1°C)
Wide temperature range from -30°F to 220° (-34.4°C to 104.4°C)
Selectable °F or °C heating/cooling modes
Sensor rated IP67 for dust and water (<1m) resistance
“Plug-in” temperature probe connector to allow for field retrofit as needed
Single and two stage models
Anti-short Cycle Compressor Delay for cooling applications
8′ (2.4384m) lead with sensor is extendable up to 400′ (121.92m) using 18- or 22-gauge thermostat wire
Customizable to specific applications
Heavy-duty relay is 1 HP rated
High Amp output relay (FLA 16 Amps @ 120V AC and 8 Amps @ 208/240V AC) single stage
NEMA 1 case and cover NEMA 4X models available

Agency Certifications:

Download Spec Sheet

E70 Series Electronic Temperature Controls

Application: Commercial Refrigeration

The Ranco^® E70 Series Electronic Temperature Control is designed to switch compressor driven refrigerators and freezers in response to sensed temperatures.

Features and Benefits:

Compact dimensions make installation easy in most appliances
Can be used in appliances where the control must not ignite escaped refrigerant gas
User adjustable temperature dial with plastic cover or fixed setting option with no dial or cover
Highly flexible custom designs available through programmable settings and optional configurations
Factory configured optional defrost time
Choice of adjustment ranges for cut-in and cut-out temperatures
An optional plastic bracket is available with a standard center-post mounting boss that allows the E70 to replace electromechanical thermostats without requiring tooling changes
Optional second control output for a defrost heater up to 1 Watt
Connection type: 4-pin JST connector for power, compressor, and heater
Capable of controlling 1/4 HP compressor load with option for 1/3 HP load

Specifications:

Supply Voltage range: 100V – minimum 142V
Frequency: 50 Hz or 60 Hz ± 1% sinusoidal
Control Energy Consumption: 1 Watt ± 10% @110V 60 Hz
Compressor Load: up to 1/4 HP; optional fitting for 1/3 HP
Defrost Heating: up to 1,000 Watt heating load
Ambient Temperature range from 0°C to 45°C (32°F to 113°F)
Storage/Transport Temperature range from -30°C to 75°C (-22°F to 167°F)
Humidity: 0 to 93% RH non-condensing

Agency Certifications:

IEC 60335-2-24, IEC 60730-1, 60079-15

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9500 Series Temperature Control

9500 Series

9500 Series Temperature Controls

Application: Commercial Refrigeration

The Ranco^® 9500 Series Temperature Controls are designed to switch electrical components of refrigeration systems in response to sensed temperatures.

Features and Benefits:

Laser-welded stainless steel bellows
Fixed or adjustable temperature settings
High-amperage contacts
Pneumatic action provided by vapor-filled capillary or capillary with bulb sensing elements
Constant On or Off positions available
Choice of mounting brackets, adjustment ranges and cams and slotted or flatted shafts
Standard 0.25” (0.6cm) quick-connect terminals with optional screw terminals
Constant cut-in and constant differential versions are available

Specifications:

Temperature range from 5°F to 40°F (15°C to 4.44°C)
Terminal Size: 0.25” (0.6cm)
Capillary Length: 20” to 58” (50.8cm to 147.3cm)

Agency Certifications:

UL SA512

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K Series Electronic Temperature Controls

K Series

K Series Temperature Controls

Application: Commercial Refrigeration

The Ranco^® K Series Temperature Controls are used globally to control the temperature in commercial and residential refrigeration, air conditioning and heating applications. The K Series Temperature Control is a cycling thermostat with a single pole single throw (SPST) close-on rise switch and narrow differential for custom applications. Typical uses include refrigerators, freezers, bottle and liquid coolers, refrigerator display cases, and air conditioning units.

Features and Benefits:

Compact size
Switch design eliminates contact arcing
Adjustable or fixed operating range
Fixed differential
Standard mounting or with bracket
Wide range of capillary lengths from 12″ (300mm) to 10′ (3m)
Different forms of bulbs available

Specifications:

Temperature ranges from -40°F to 194°F (-40°C to 90°C)
Terminal size: 6.3mm or 4.8mm
Electrical Rating: 6 Amps to 16 Amps continuous at 250V AC (depending on model); 12 Amps at 12V DC

Agency Certifications:

ENEC
UL
CSA recognized

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A Series Temperature Controls

A Series

A Series Temperature Controls

Application: Commercial Refrigeration

The Ranco^® A Series Temperature Controls are designed for refrigeration applications that require defrosting the evaporator coil when the compressor is in the off cycle. The A Series is typically used in vending machines, automatic beverage dispensers, reach-in coolers and medium temperature commercial equipment.

Features and Benefits:

Laser-welded stainless steel bellows
Fixed or adjustable temperature settings
High-amperage contacts
Pneumatic action provided by vapor-filled capillary or capillary with bulb sensing elements
Constant on or off positions available
Choice of mounting brackets, adjustment ranges and cams, and slotted or flatted shafts
Standard .25” (0.6cm) quick-connect terminals with optional screw terminals

Specifications:

Temperature range from -34°F to 67°F (-36°C to 19.4°C)
Terminal Size: .25” (0.6cm)
Capillary Length: 12” to 84” (30.5cm to 213.4cm)
Electrical Rating: 16 Amps or 25 Amps continuous at 240V AC (depending on model)

Agency Certifications:

UL SA512

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RC/TSV/TXV Series Temperature Controls

RC-TSV-TXV Series

RC/TSV/TXV Series Temperature Controls

Application: Commercial Refrigeration

The Ranco^® RC, TSV and TXV Series Temperature Controls are designed for controlling temperature in refrigerators, freezers, air conditioners, water coolers and other applications requiring operation cut-off by temperature. The RC models are traditional and offer ease of use and versatility with a wide range of models. The TSV line incorporates a low-noise electrical switch, and the TXV line includes explosion proof models.

Features and Benefits:

Snap-action switch
Switch design eliminates contact arcing
“Drift Guard” feature
Standard models available for many applications
Compatible with compressors up to 1/2 HP

Specifications:

Electrical ratings for refrigerators: 40 LRA (locked rotor amperage); 8 FLA (full load amperage); 120/240V AC
Electrical ratings for air conditioning: 96 LRA / 25 FLA, for SPST or SPDT switch
Constant differential or constant cut-in versions
Sensing element: capillary tube or bulb (for cross ambient version)
Gas used: 131A, R290, SO2

Agency Certifications:

UL E30359 for RC and TSV models
TUV for TXV model

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C Series Temperature Controls

C Series

C Series Temperature Controls

Application: Commercial Refrigeration

The Ranco^® C Series Temperature Controls are designed to replace many OEM controls which govern the on/off compressor function. The C Series Temperature Controls are used in air conditioners such as packaged terminal, through-the-wall, resistance heat, and room heating and cooling units.

Features and Benefits:

Fixed or adjustable temperature settings
Laser-welded stainless steel sensing elements
Narrower differentials attainable
C12 can be used for cool only units or heat/cool units when used with a separate changeover switch
C17 has two SPDT electrically isolated switches calibrated at different setpoints and differentials
Two stage SPDT switches are staged at 3.5°F (-15.3°C)

Specifications:

Temperature range from 67°F to 205°F (19.4°C to 96.1°C)
Terminal Size: 0.25” (0.6cm)
Capillary Length: 9” to 72” (22.9cm to 182.9cm)
Electrical Rating: 20 Amps continuous, 80 Amps peak at 120V AC/240V AC; 16 Amps continuous, 60 Amps peak at 277V AC (depending on model)

Agency Certifications:

UL SA512

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O Series Temperature Controls

O Series 2

O Series Temperature Controls

Application: Commercial Refrigeration

The Ranco® O Series Temperature Controls provide a wide range of controls customized to allow users exact adjustments within manufacturers’ limits. The Ranco O Series features heavy-duty plated steel frames, nonconductive covers with front-located captive cover screws, raised screw terminals for fully accessible wiring, and large easy-to-read scales. Designed for flexibility, these controls can be used in numerous applications such as self-contained refrigerators, freezers, coolers, walk-in units, and refrigeration display cases.

Features and Benefits:

Maximum adjustment accuracy with seven 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
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 Australian controls. Cap is optional on controls for all other regions

Agency Certifications:

CE for EMEA, South American and Australian controls
UL for all regions
IP44 rated for all Australian controls
IP44 rated for EMEA and South American controls with optional cover

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