Brand Name: DUN AN
Model Number: EEV 2.2C
Place of Origin: Guangdong
Basic Info
Product Description
Quick Information
Brand Name : DUN AN
Model Number : 2.2C
Place of Origin : China
Description
Electronic Expansion Valve-EXV are designed for usage in air conditioning & refrigeration system, or in heat pumps. The Valve supports automatic adjustment of refrigerant flow rate and makes the system work under optimized conditions for the purpose of fast cooling or heating, precise temperature control and energy saving. EXV can also be used e.g for suction line pressure controls, which provide bidirectional operation to control the refrigerant flow rate in heating or cooling mode.
| Features |
| Applicable for oil-free system(T series) |
| Smaller installation space: low height, small volume, light weight |
| Optimized flow path design for noise reduction |
| Fast operation, energy saving |
| Applicable for reversible systems like heat pumps: bidirectional flow |
| General Speciafication |
| a. Applicable for all common HCFC and HFC refrigerants such as: R22, R134a, R407C, R410A, R507A |
| b. Cooling capacity: 1.0~30 TR(capacity) |
| c. 500steps(full stroke), 32 ±20 opening steps |
| d. Medium temperature TS min./max.:-22/+158ºF(duty cycle rate below 50%) |
| e. Ambient temperature min./max.:-22/+140ºF(duty cycle rate below 50%) |
| f. Relative humidity: 0~95% RH |
| g. Installation position: coil upwards, valve rotor central axis within +/-15° versus vertical axis |
| h. Certifications: UL/CSA and declaration according to LVD or PED |
| Electrical Parameters |
| a. Rated voltage:12V DC(±10%), rectangular wave |
| b. Actuating mode:4-phase 8-step permanent magnet stepping motor of direct-acting type |
| c. Excitation mode:1~2phase excitation, monopole actuation |
| d. Excitation rate: -i.d of seat Ø1.3 to 3.2mm: 30s to 90pps |
| -i.d of seat Ø4.0 to 6.5mm: 30s to 40pps |
| e. Activation of self-holding mechanism: Maintain excitation in stop position min.0.1~1.0sec. |
| f. Min. motion time from completely open to completely closed: |
| -i.d of seat Ø1.3 to 3.2mm: 30s to 90pps |
| -i.d of seat Ø4.0 to 6.5mm: 30s to 40pps |
| g. Coil current: 260mA/phase(68°F) |
| h. Coil resistance: 46±3.7/phase(68°F) |
| i. Insulation class of coil: E |
| j. Protection class: IP 66 |
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