


The 3126 and 3127 Series Robertshaw® pressure controls are designed as replacements for existing Penn and Robertshaw devices used on air conditioning and refrigeration units.Differentials are calibrated to centers of pressure range of controlDifferentials will decrease slightly at lower end of range and increase slightly at higher end of range


066-A-074 HEAT EXCHANGERS INC.

066-A-074

066-A-096 HEAT EXCHANGERS INC.

066-A-096




                        The Robertshaw® 780 Series Hot Surface Controls are designed for use on gas fired systems. The system acts on a demand for heat by a switch or thermostat to supply power to the ignition control. On non pre-purge models, the ignitor will be energized immediately and remain on for either of two optional selected ignitor heat-up times: approximately 17 or 34 seconds. For models with the prepurge option, there is a time delay equal to the heat-up time selected before the ignitor is energized. At the end of the ignitor heat-up time, the gas valve is opened supplying gas to the main burner. After several seconds, the ignitor is turned off and the sensor is energized. As long as flame is sensed, the system continues to operate.
Features and Benefits

Reduces truck stock inventory, saving space and moneyEasy-to-install with complete in-depth installation instructionsMolded-in terminal barriers between terminalsModels available for local and remote sense applicationMounting screw provides a positive ground connectionSmall compact size provides no hassle installationMain valve current is 1.5 Amps at 24V AC95% relative humidity noncondensing at 104°F


100-00812-05 HEAT EXCHANGERS INC.

100-00812-05




                        The Ranco® A22, A30 and 9530 Series Constant Differential Temperature Controls are designed to switch electrical components of refrigeration systems in response to sensed temperatures.Features and BenefitsLaser-welded stainless steel bellowsFixed or adjustable temperature settingsHigh-amperage contactsPneumatic action provided by vapor-filled capillary or capillary with bulb sensing elementsConstant On or Off positions availableChoice of mounting brackets, adjustment ranges and cams, and slotted or flatted shaftsStandard 1/4” quick-connect terminals with optional screw terminalsWARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.


066C067 HEAT EXCHANGERS INC.

066C067

166-C-059 HEAT EXCHANGERS INC.

166-C-059

066-A-095 HEAT EXCHANGERS INC.

066-A-095

066-C-059 HEAT EXCHANGERS INC.

066-C-059

41104 HEAT EXCHANGERS INC.

41104




                        The Ranco® 4-Way Reversing Valves are designed for heat pump applications such as window-type, unitary and split systems. They are the key component to provide heating and cooling from the heat pump system by reversing the flow direction of the refrigerant.
                        
                    

068-A-004 HEAT EXCHANGERS INC.

068-A-004




The Ranco® O Series Single Low Pressure Controls offer a variety of pressure ranges and switch action to provide maximum application flexibility.Features and BenefitsControls available for most refrigerant typesHigh-amp rated switch (SPST) design (/O10-1483)Super Cap® capillary vibration protection systemNon-conductive front cover with captive screwAdjustable differential and rangeEasy-to-read scale plateVibration cone (absorbs and reduces vibration away from brazed joint)Low mass copper alloy capillary tube (reduces capillary stress caused by equipment vibration)The O16-624 control has additional features:Compatible with refrigerants 134A, 401A, 401B, 402A, 402B, 403A, 403B and 404ACap included on all Australia temperature controls. Optional for all other regions


066A097 HEAT EXCHANGERS INC.

066A097




                        These controls provide extra protection to refrigeration compressors. G20 - Protects against loss of charge or evaporator freeze-up. G23 - Provides high head pressure protection.
                        
                    

41-104 HEAT EXCHANGERS INC.

41-104




                        The Ranco® Heat / Cool Controls replace many OEM controls which govern the on/off compressor function. Heat and cool controls are found on room air conditioners such as packaged terminal, room and through-the-wall heat and cool units.
Features and Benefits

Fixed or adjustable temperature settingsLaser-welded stainless steel sensing elementsNarrower differentials attainableC12 can be used for cool only units or heat/cool units when used with a separate changeover switchC17 has two SPDT electrically isolated switches, calibrated at different set points and differentialsTwo stage SPDT switches are staged 3.5°F


066-A-301 HEAT EXCHANGERS INC.

066-A-301




                        Helps prevent wide variations in room temperature by sensing discharge and return air temperature, and limiting heat/cool to a narrow range. Helps to conserve energy and lower operating costs. Each section of capillary is 36" long.
                        
                    

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