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RANCO
A subsidiary of Robertshaw, Ranco is a leading manufacturer of reliable electronic & electromechanical controls for refrigeration and air conditioning equipment. Ranco's extensive catalogue includes line voltage thermostats, heat pump reversing valves & solenoid coils and cooling filter dryers, in addition to dual pressure, oil protection, ice maker & single pressure controls. Read More
Filter
HVAC and Refrigeration
Pneumatics
Electrical
HVAC and Refrigeration Filter
HVAC ControlsView all
Dual Pressure Controls Combine the functions of both high- and low-pressure controls and are suitable for use with R-12, R-22, R-134A and R-502 refrigerants. Feature an SPST switch and are colour-coded for easy identification of pressure lines
Duct Pressure Switches Electric Appliance Controls 
Heat Pump Reversing Valves Includes solenoid-operated Ranco reversing valves to reverse the direction of flow of the refrigerant and change the heat pump refrigeration cycle from cooling to heating or vice-versa. Available in different suction tube internal diameters
Heat Pump Solenoid Coils LDK Series continuous-duty electromagnetic solenoid coils used to operate the pilot valve that further controls reversing valves. Supplied with a 48-inch lead and offered in different power ratings at 50 / 60 hz
Line Voltage Thermostats Line Voltage Mechanical and Electrical Thermostats designed to regulate the temperature of the high-rise buildings where cold-air flow intake and hot-air exhaust control are simultaneously; ideal for use with attic ventilators, fans, and dampers. Features a control range of -30 to 220 deg F
Oil Protection Controls Protect pressure-lubricated refrigeration compressors from damage due to loss of oil pressure. Feature a front-located captive cover screw, time delay modules and Super Cap capillary vibration protection system
Thermostat Accessories Includes temperature sensors that can measure temperatures ranging between -30 and 220 degrees F. Supplied with an IP67 rated thermistor sensor and a 22 gauge cable
A/C RefrigerationView all
A/C Refrigeration Accessories Ice Maker Controls UL listed Ranco ice bank controls, ice bin level controls and ice harvest controls to control the size of the ice banks and increase the efficiency of the ice machines
Refrigeration Access Valves Feature full brass construction and a swivel tee; suitable for use with all CFC, HCFC and HFC refrigerants
Refrigeration Controls Defrost controls, temperature controls, freezer controls, water cooler controls and air conditioner cycling controls designed to ensure proper and uninterrupted functioning of refrigeration systems
Single Pressure Controls Designed for use with HVAC compressors to avoid loss of refrigerant. Feature a DPST / SPST / SPDT switch and can control pressures ranging from 0 to 450 psi
About Ranco
Ranco line voltage thermostats provide on / off control for air conditioning, refrigeration and commercial heating. These Ranco thermostats feature two programmable stages for cooling & heating and an LCD screen for indicating relay status & temperature readings. They are capable of sensing temperatures ranging from -30 to 220 degrees F. Ranco ice maker controls maintain the ice thickness in refrigerated cabinets, ice builders and soft drink vending machines. These controls feature bulb & capillary sensors for auto turn-off & high separation resolution.
Things to Consider
Cross-Reference Alternatives
Ranco product's model numbers generally cross individual reference to the equivalent Honeywell, Johnson Controls, White-Rodgers & Robertshaw MPNs (manufacturer's part numbers). So, if you're looking for thermostats, valves, controls & accessories that are either out of stock or obsolete, chances are Raptor Supplies has the alternate product available.
Shipping
These Ranco products are generally small in size and require compact packaging. They are suitable for courier shipment and not air freight.
Major Trade Names
2000 Series Thermostatic Expansion Valves (TXVs)
Ranco 2000 Series thermostatic expansion valves (TXVs) can be installed on refrigerating systems to regulate the flow rate of refrigerant liquid into the evaporators. These TXVs work interchangeably w...Read more
ETC Series Electronic Controls
Ranco ETC Series electronic temperature controls provide a fully featured electronic replacement to the electrical-mechanical temperature controls present in most refrigeration systems. These controls...Read more
J10 Series Humidity Controls
Ranco J10 Series humidistats & dehumidistats regulate the relative humidity by cycling the humidifying / dehumidifying equipment in confined spaces. These J10 controls have high impact plastic constru...Read more
RAD Series Refrigerator Air Dampers
Ranco RAD Series refrigerator air dampers control the flow of cold air to the refrigerator from the freezer. These dampers are regulated by a thermostat that triggers the opening / closing of the damp...Read more
Frequently Asked Questions
How to set up a Ranco thermostat?
- Ranco's ETC line of thermostats / temperature controls can be set using the set, up & down buttons on the unit after powering them On & pressing the set button. Users should first select their required temperature unit (degree F or C) by pressing the set button again.
- After returning to the main menu, "S1" icon will appear on the display, press the up or down arrow keys to increase or decrease the set-point temperature. Press the set key again to return to the main menu.
- Users will see the "DIF 1" icon blinking in the display. Press the arrow keys to set the temperature differential (temperature range where the thermostat would operate in the heating / cooling mode). The differential temperature in the heating mode is set lower than the setpoint temperature, whereas it is set higher than the setpoint in cooling mode. Press the Set key again.
- Either "C1" or "H1" will blink in the display window to program the cooling & heating settings. Press the set key to lock the programming choices and finish the set-up of a Ranco thermostat.
What do different error codes mean in Ranco temperature controls?
E1 error code appears in the controller when the up or down arrow key is pressed without going to the programming mode, whereas the E2 error indicates that the control setting is not stored properly in the memory. EP error code denotes an open / shorted probe or out of range temperature sensing and the EE error code shows corrupt EEPROM data. CL code appears if the user has entered the calibration mode.