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China Factory's High Performance Energy Saving Rooftop Packaged Air Conditioner Unit

10 Tons Rooftop Air Handling Unit Commercial Air Conditioner China Factory Directly Supplier Rooftop Packaged Air Conditioner Unit

Name: 10 Tons Rooftop Air Handling Unit Commercial Air Conditioner China Factory Directly Supplier Rooftop Packaged Air Conditioner Unit
Brand: VOLKS
Rating: 5.0 (99 reviews)

Rooftop air conditioning unit is a commercial air conditioning system integrating refrigeration, heating and ventilation, which is usually installed on the roof of buildings and is suitable for the temperature control requirements of medium and large spaces. Its modular design supports flexible adaptation to different building structures and is widely used in commercial, industrial and public facilities.

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VOLKS

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Structure and working principle

Core structure

Compressor: Drive the refrigerant circulation to realize heat exchange.
Evaporator and condenser: responsible for absorbing and releasing heat respectively.
Fan system: built-in centrifugal fan transports the treated air.
Filter device: Purify air, with optional high-efficiency filter.
Control system: integrated temperature and humidity sensor and intelligent control panel.

Principle of operation

Refrigeration mode: the refrigerant absorbs indoor heat in the evaporator, is compressed by the compressor, and is discharged outside the condenser.
Heating mode (heat pump type): Switch the refrigerant flow direction through the four-way valve to realize reverse circulation.
Ventilation mode: external air is introduced by an external fresh air system, mixed and filtered and sent indoors.

Product advantages and application scenarios

Product advantage

High efficiency and energy saving: frequency conversion compressor and EC fan are adopted, and the energy efficiency ratio (EER) is above 3.5.
Save space: the roof installation does not occupy indoor area, which is suitable for space-limited scenes.
Intelligent control: Support remote monitoring of Internet of Things (IoT) and automatically adjust operation parameters.
Low maintenance cost: modular design is convenient for disassembly and maintenance, and filter screen replacement is convenient.
Strong environmental adaptability: the shell is made of anti-corrosion material, which can run at -20℃ to 50℃.

Application scenario

Commercial buildings: shopping malls, supermarkets, hotel banquet halls.
Industrial facilities: workshops, warehouses and logistics centers.
Public institutions: gymnasium, exhibition hall, school auditorium.

Technical parameters

MODEL			WRF28ZA	WRF30ZA	WRF32ZA	WRF36ZA	WRF42ZA	WRF48ZA	WRF55ZA	WRF64ZA
Cooling Capacity		kW	28.8	29.9	32.4	35.6	41.6	47.2	53.2	63.3
Heating Capacity		kW	31.1	32.3	34.6	38	44.6	50.2	56.4	67
Control Range		%	0、50、 100	54、100 0、46、	0、50、 100	0、50、 100	63、100 0、37、	68、100 0、32、	60、100 0、40、	0、50、 100
Power Supply			380V / 3Ph / 50Hz
Cooling Power Input		kW	11.03	11.6	12.4	13.14	14.8	16.97	19	22.21
Heating Power Input		kW	10.4	10.8	11.57	12.03	13.76	15.79	17.4	19.88
Start Current		A	62.5	62.9	59.9	75.3	87.9	103.9	108	111.4
Cooling Current		A	17	18.5	19.6	23.1	27.9	30.9	33.7	39
Heating Current		A	15.6	17.2	17.8	21.6	26.1	28.7	31.3	36.5
Throttling Method			Thermal Expansion Valve
System Qty			1			2
Refrigerant			R410A
Condenser
Fan Motor	Axial fan power supply		380V / 3Ph / 50HAZ
	Qty		1	1	1	2	2	2	2	2
	Speed	r/min	920	710	940	720	920	920	920	720
	Driver Type		Direct drive
	Power Input	kW	0.55	0.55	0.55	2x0.37	2x0.45	2x0.55	2x0.55	2x0.75
	Air Flow	m /h3	12300	12300	12300	14200	18800	18800	21400	28400
Evaporator
Fan Motor	Centrifugal fan power supply		380V / 3Ph / 50HAZ
	Qty		1	1	1	1	1	1	1	1
	(High/medium/low） fan speed	r/min	1320	1400	1120	940	940	1000	750	750
	Power Input	kW	1.1	1.5	1.5	2.2	2.2	3	3	4
	Air Flow	m /h3	4700	5400	6300	6800	7900	9500	10000	12500
	Driver Type		Drive pulley
ESP（Pa）			235	305	290	270	250	250	250	250
Filter			Nylon filter
Noise dB(A)			70	72	72	72	72	75	73	73
refrigerant charge（kg）			7	8.2	9	2x5.3	8+4.2	9+4.2	10.5+4.2	2x9
Dimension	Length	mm	1940	2240	2240	2540	2540	2540	2490	2490
	Width	mm	1390	1390	1390	1860	1860	1860	2050	2210
	Height	mm	1045	1045	1045	1045	1195	1195	1390	1490
Weight		kg	460	500	520	650	755	770	810	890
Note: Cooling Capacity Running Conditioning: Indoor temperature 27/19, Outdoor temperature 35/24 Heating Capacity Running Conditioning: Indoor temperature 20/15, Outdoor temperature 7/6

FAQ

Q: Is it necessary to reinforce the building structure when installing roof units?

A: It needs to be evaluated according to the weight of the unit. Usually, the bearing capacity per square meter needs to be ≥300kg, so it is recommended to be tested by a professional team.

Q: What is the heating effect in winter?

A: Heat pump units can operate normally above -15℃, and auxiliary electric heating is recommended in extremely cold areas.

Q: Will noise affect the surrounding environment?

A: totally enclosed scroll compressor+shock absorption design, with noise ≤65dB(A) during operation, which meets the standards of business district.

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