Honeywell HP Series pressure switches are easily customizable, durable, reliable electromechanical pressure on/off switches. It is necessary to automatically control (on or off) the circuit of a refrigeration system. Air conditioning means not only to mainatain room's temperature... An air conditioner or a refrigeration system has the same four main components. Both Low Pressure and High Pressure Too Low. Read about company. This switch is fixed on the discharge line of the compressor where pressure and temperature is high. Honeywell HP Series pressure switches are easily customizable, durable, reliable electromechanical pressure on/off switches. KP Dual Pressure Controls are available in versions for regulation of high pressure on both left and right side or regulation of low pressure on left and high pressure on right side (versions with LP signal or LP+HP signals). Kp dual pressure controls are available in versions for regulation of high pressure on both left and right side or regulation of low pressure on left and high pressure on right side (versions with lp signal or lp+hp signals) enclosure rating ip30 or ip44 Honeywell Pressure Switches, HP, HE, MH, ME, LP, LE, 5000, 1000 Series Character-istic HP Series HE Series ME Series MH Series LP Series LE Series 5000 Series 1000 Series Rated thermal current 5 A 3 A 3 A n/a 5 A 3 A n/a n/a Rated insula-tion voltage 28 V 28 V 28 V n/a 28 V 28 V n/a n/a Short-circuit protective device c-type max. Low Refrigeration Pressure Switches - The low-pressure switch is typically an automatic reset switch that will reset itself when the pressure on the low-pressure side of the refrigeration systems returns to normal or above the setting on the switch. Electrical ratings according to UL.Danfoss dual pressure switch type KP 44 is designed for use as a pump guard to control and protect supply water pumps. These switches startes system's circuits step by step like at the time when a system with tree compressors is switched on these three compressors don't start work at same time. Pressure Type Low pressure (LP) High pressure (HP) Reset Contact system Code no. A crank case heater is fixed on the compressor body to protect the compressor. EMX Motors - Offering HP LP Pressure Switch, हाई प्रेशर स्विच, उच्च दाब का स्विच at Rs 250/piece in Noida, Uttar Pradesh. No. If the crank case heater is not switched on before half an our the lubricant will start to freeze because of low temperature of refrigerant and this may demage the compressor. Ranco 017H4701 HP/LP Auto Reset Pressure Switch. ... Pressure Coupler. All controls have SPDT electrical contacts. Relays are also used to protect compressor and fan motors ( Blower and condenser fan motors). A replacement with an automatic reset LP/HP wired in series, would do the trick. The Honeywell Pressure Switch portfolio consists of: • High Pressure Premium, HP Series • High Pressure Economy, HE Series • Medium Pressure Economy, ME Series • Low Pressure Premium, LP Series • Low Pressure Economy, LE Series These pressure switches are durable, reliable electromechanical gauge pressure on/off switches that are available with either single pole single … Check the pressure scale on the switch to check if it is HP or LP i.e. James, I hope that this helps you with pressure switch setting. But compressor is called the heart of a refrigeration or air conditioning cycle. This switch is fixed on the discharge line of the compressor where pressure and temperature is high. LP & HP Switches works on pressure only and dont sense the temperature. (kg / cm²) 28.5 Off -22.1 On M.P. 2994346 534044 93162715 H.P. These relays are connected with PCB that senses the flow of amperes and voltage. They boast the following specifications: Sign up to receive exclusive communications from Honeywell including product updates, technical information, new offerings, events and news, surveys, special offers, and related topics via telephone, email, and other forms of electronic communication. Pressure switch Alco PS2-L7A LP/HP. Product Features. It works opposite to LP switch and when the pressure goes high in the system it will shut down the entire unit. Atom It could be that the manual LP/HP was dropping the machine frequently & someone became tired of having to reset the switch & so decided to wire it in parallel. HP Switch :- HP switch stands for High pressure switch. Pressure Switch - Dual - LP Manual HP Manual Ranco Unit Each Notes: Ranco O Series commercial refrigeration and air conditioning controls are available for low pressure, high pressure and dual pressure applications. KP pressure controls are available in IP 30 and IP 44 enclosures. The cut out pressure is usually set at approximately 0.1 bar g to avoid the system operating at a pressure below atmospheric pressure. Wiring. Since the HP switch is an automatic reset, and the pressures within the refrigeration system will equalize shortly after the heat pump cuts off, HP or HI on the display without the heat pump running will not be related to the refrigerant pressure check the continuity of HP switch. The lefthand pressure bellows control the pump pressure. The LP switch switches on the compressor when the cut in pressure is reached. : 60656001.1 Old Item Code: OE. Connection Regulating range [bar] Differential ∆p [bar] Regulating / range [bar] Differential ∆p [bar] Low pressure LP High pressure HP 1 4 in. Forever best solution for cholera and eyes problems. Distributor Inventory. This happens because of these timer switches. If there is any problem with the motor of fans or high amps of compressor these relays disconnect the entire system. do not use a LP for HP control (sorry if this is a suck eggs) That unit is probably wired normally closed but check with your multi meter. 604.9100000 28863 http://www.em.co.za/Home/Pressure-Switches-Sensors/604.9100000 604.9100000 MECHANICAL PRESS. The set point pressure for the switch can be configured such that the switch will actuate on increasing or decreasing system pressure. At the time of start the crank case heaters are switched on before half an hour of starting the entire system as recommended. After start of first circuit the other circuit will start at time interval adjusted mannually as per recommended of manufacturer. LP side: A-C opens on pressure drop HP side: A-C opens on pressure rise Short circuit protection: Fuse 16 Amp Manual trip function Adjustment Convertible reset KP 15: LP/HP convertible, KP 17WB: HP convertible Insert a screwdriver into the slot on the lock disc and turn it to desired reset configuration. Features • Pressure switching set point range: 3.5 psi to 4000 psi (varies by Series) • Proof pressure: 500 psi to 10,000 psi (varies by Series) • Burst pressure: 1250 psi to 20,000 psi (varies by Series) The latter should be used on systems with a refrigerant charge greater than 100 kg and / or with an individual compressor size greater than 25 l/s displacement (90 m 3 The lubricant which is used in crank case of compressors of high capacity has the heaters to heat up the lubricant before starting the unit. Switch should be HP Switch HP switch stands for High pressure switch. continuity between blue brown N.C Request a quote. Copyright © 2021 Honeywell International Inc, https://sps.honeywell.com/us/en/search-results.html, 50038194: Honeywell Pressure Switches Installation Instructions, HP-HE-MH-ME-LP-LE Series, Honeywell Pressure Switches HP-HE-ME-LP-LE Series Applications, Technical Note: Honeywell Pressure Switches - Smart Diagnostic Technology, Product Nomenclature - Honeywell Pressure Switches, HP/HE Series, Controls, Monitors, and Pressure Switches Range Guide, Partners Providing Technical Safety and Productivity Solutions, 20000 psi (base style A); 9000 psi (base style B), 5 A at 115 Vac (SX rating), 3 A at 28 Vdc, 10000 psi (base style A); 6000 psi (base style B), IP67 (Base style A); IP69K (Base style B), 10-in cable with Deutsch DT06-2S-CE06 (2-socket connector) (18 AWG), Amp Super Seal 1.5-282105-1 (3-pin connector), 100 psi to 4500 psi set point range (factory set), 10,000 psi proof pressure (base style a); 6,500 psi proof pressure (base style b), 2 million life cycle (base style a); 1 million life cycle (base style b). 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