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Product use：

The products are mainly used for cooling and dehumidifying the air in various electric cabinets to ensure the safety and reliability of electrical components and prolong the service life of electrical components. It is suitable for all kinds of control boxes, electrical cabinets and other similar electrical devices with high temperature and humidity requirements in machinery, automobile, electric power, light industry, instrumentation, textile, casting, surface treatment industries, such as machine tool electrical cabinets, integrated processing centers, communication equipment, etc.

Model：

main features：

It has the function of temperature regulation and dehumidification to ensure the ideal temperature and humidity in the electric cabinet；

The scroll compressor and refrigeration components of refrigeration system adopt international famous brand products, which have high efficiency and low power consumption, and ensure the excellent quality and durable reliability of the equipment；

Completely independent sealed air circulation inside and outside makes the air inside the electric cabinet circulate independently, prevents dust, oil mist and wet air from entering the cabinet, ensures the cleanliness of the electrical components inside the electric cabinet, and ensures the service life of the cabinet；

Beautiful appearance, soft color；

Choose centrifugal fan with large air volume and high static pressure, and have large circulating air volume；

Reasonable outlet and return air structure to avoid short circuit of air circulation；

With alarm function, real-time detection of the use of air conditioners, easy and convenient to use；

Small size, light weight, easy to install, use and maintain；

Environmentally friendly refrigerant with high efficiency and unique super long air passage

No hot spot design, enhance the stability of the operation of unique air circulation design, so that the cabinet air to maximize the cycle

4、The unique low noise design of higher safety P55 protection level has electronic shielding function to avoid misoperation

parameter：

Input Voltage Range and Frequency: AC187-253V, 50Hz Operation Temperature Range: -40 C~+55 C

Communication interface: RS485 alarm output: dry contact

Protection Level: IP55 Refrigerant: R134a

Compliance with CE and RoHS

Classification of Cabinet Air Conditioning

Standard cabinet air-conditioning: working ambient temperature is generally 15-55 degrees Celsius

High Temperature Resistant Cabinet Air Conditioning: Working normally at ambient temperatures up to 80 degrees Celsius

Double-temperature cabinet air-conditioning: both refrigeration and heating, more suitable for alpine areas

Dual System Cabinet Air Conditioning: Two sets of independent refrigeration system design, separate or parallel operation, enhance operational reliability

model selection

QT=1.2×Q0=1.2(QV+ QR）

QR=K*A*T:QT-Selected Air Conditioning Refrigeration Capacity (W)

Q0——Total heat load to be removed from electrical cabinet

QR ——The heat load (W) transmitted from the outside of the electric cabinet to the inside of the cabinet; QV - the total heat load (W) generated by the components in the cabinet; (Note: Heating function can be increased (except 300-500); refrigeration capacity 400-10000W customized.

Empirical formula for calculating total heat generated by equipment in cabinet

1、 Frequency converter, driver, servo amplifier, industrial computer calorific value: calorific value can be estimated as 3% of the total power of the equipment；

2、 The calorific value of storage battery in energy storage power station is mainly generated during charging and discharging. The main heating equipment is PCS energy storage converter. Under uniform charging condition, the calorific value is about 2.5% of PCS；

3、 Large transformer can be 1%~1.5% of transformer capacity.

4、 Others, ordinary server calorific, about 150 ~ 300W; UPS calorific, power of 30%.

5、 Calorific value of PLC, open, contactor and other components: a group of about 30W~30W calorific value

6、K - heat conductivity (W/m2). K), the value varies according to the cabinet material. Generally speaking, low carbon steel is 5.5, stainless steel plate is 4.5, aluminium plate is 12, plastic is 0.3 IK = 1.5w/m.k - - slag asbestos (asbestos). (Note: the above thermal conductivity coefficients are the values without thermal insulation layer, if there is thermal insulation layer, the user must root. According to the material and thickness of the actual insulation layer, we can also refer to or consult our technical selection.

7、 Δ T——The temperature difference inside and outside the cabinet and the change of temperature (for example, day/night, summer/winter) must be fully considered. It is decided that the temperature difference is the allowable temperature inside the cabinet and the ambient temperature outside the cabinet (that is, the ambient temperature at the working site).

8、 A ——The actual heat dissipation area (m2) of the cabinet body and the installation mode of the cabinet body have great influence on the heat dissipation of the cabinet body. For the calculation of the heat dissipation area of the electric cabinet, please refer to the calculation of the surface area of the cabinet body at point 3 above: (width = cabinet body width, height = cabinet body height, depth = cabinet body depth).

9、 1.2 ——Allowance coefficient, according to the heat load of 1.2 times the choice of air conditioning model, in order to achieve good cooling effect.

Case Calculus：

Example: The shape of electric cabinet is 2000 *1400 *600 (mm). The cabinet is surrounded by open space and has a base. The material of electric cabinet is low carbon steel. The ambient temperature of electric cabinet is 35 C (To=35 C). The electric cabinet is composed of ordinary electrical components with small calorific value. The electric board is about 0.8m2, and the temperature of electric cabinet is 28 C (Ti=28 C). The electrics need to be selected and matched. The cabinet size is calculated as follows：

Calculating Method of Air Conditioning Selection for Electric Cabinet：

A=1.8×2.0×1.4+1.8×2.0×0.6+1.8×1.4×0.6=5.04+2.16+1.512=8.7m2

A=1.8×2.0×1.4+1.8×2.0×0.6+1.8×1.4×0.6=5.04+2.16+1.512=8.7m2

QV=200×0.8=160W

QT=1.2×(QV+QR)=1.2×(160+335)=594W

Serial number	Model	Power Supply	Cryogen	Refrigeration (W)	Electric (A)	power (W)	temperature (℃)	ruler      寸         （wide×high×deep）mm	weight （kg）
1	JPHV-30A	220	R134a	300	1.2A	260	-5/60	286.445.173	15
2	JPHV-45A	220	R134a	450	1.5	290		286.500.173	17
3	JPHV-50A	220	R134a	500	1.7	350			19
4	JPHV-60A	220	R134a	600	2.1	450		350.630.203	26
5	JPHV-80A	220	R134a	800	2.3	500			28
6	JPHV-100	220	R22	1000	3.5	770	-5/43	370.855.231	35
7	JPHV-150	220	R22	1500	3.7	810			37
8	JPHV-200	220	R22	2000	5.0	1070		435.1160.275	62
9	JPHV-250	220	R22	2500	6.3	1400			65
10	JPHV-320	220	R22	3200	7.5	1750		453.1230.291	78
11	JPHV-350	220	R22	3500	7.8	1850			78
12	JPHV-100A	220	R134a	1000	4.1	900	-5/60	370.855.231	35
13	JPHV-150A	220	R134a	1500	4.3	950			37
14	JPHV-250A	220	R134a	2500	7.0	1600		435.1160.275	70
15	JPHV-320A	220	R134a	3200	8.0	1800
16	JPHV-350A	220	R134a	3500	8.5	1850		453.1230.291	80

It can increase heating function; refrigeration capacity4000~10000WCustomizable.