AirTS | Outdoor Module Frequency Unit AirTS-AX series

Working Principle Specification Application Download Inquire Now

Working Principle

The VRF air conditioners, also known as "one-to-many," is a type of system where one outdoor unit is connected to several indoor units. Each indoor unit can operate independently or be controlled together. The system has an outdoor unit connected by pipes to indoor units that have components like outdoor heat exchangers, compressors, and other parts. The indoor units consist of fans and direct cooling elements. Using the pipes, the outdoor unit can supply cooling liquid to many indoor units. It controls the compressor's cooling fluid circulation and the flow into various indoor heat exchangers to meet the indoor cooling and heating needs.

The system's working principle is simple: the indoor temperature sensor controls the valve on the indoor unit's cooling pipe. By adjusting the pressure, the system can control the outdoor unit's compressor speed or change its operating mode to adjust the cooling capacity according to the load.

The multi-unit system has some key features:

Significant energy savings: The system adjusts the compressor speed and refrigerant flow automatically to operate more efficiently, reducing energy consumption during lighter use and lowering overall costs.

Space-saving design: The outdoor units, usually installed on the roof, take up no extra space. With just refrigerant and water pipes, the system's layout can save on building height and costs compared to water systems.

Easy installation and reliable operation: Compared to centralized water systems, the multi-unit system has a simple setup, making it suitable for homes. With fewer components, the system runs reliably and safely.

Meeting different room requirements: The system can be arranged to meet various room needs. In some setups, while some units cool, others can heat simultaneously. In winter, the system can cool one area and heat another, reducing energy consumption and meeting diverse air conditioning needs.

Functions

Fall prevention warning monitoring

Working data collection and analysis

Wireless intelligent control

Energy saving, lower investment

Support full AirTS products linkage control

Filter net self-cleaning

Outdoor module frequency unit

R410A as the medium

Specification

Outdoor Module Frequency			AirTS- 250AX	AirTS- 280AX	AirTS- 335AX	AirTS- 400AX	AirTS- 450AX	AirTS- 500AX	AirTS- 560AX	AirTS- 615AX	AirTS- 670AX	AirTS- 730AX	AirTS- 785AX	AirTS- 850AX	AirTS- 900AX
Power		HP	8	10	12	14	16	18	20	22	24	26	28	30	32
Power supply			Three-phase and five-wire system 380V3N 5%~50HZ
*1 Rated refrigerating capacity		kW	25.2	28.5	33.5	40	45	50.4	56	61.5	68.5	73.5	78.5	85	90
*2 Rated heating capacity		kW	27	31.5	37.5	45	50	56	63	69	75	81.5	87.5	95	100
Rated power consumption	Cooling	kW	5.45	6.75	8.4	10.25	12.1	13.5	16	17.87	18.6	19.27	20.95	22.85	24.65
Rated power consumption	Heating	kW	5.41	6.6	8.3	10.28	12.15	13.6	15.6	17.3	17.6	19.01	20.55	23.05	24.15
Machine size	L×W×H	mm	930×860×1690			1240×860×1690			1500×860×1690			1900×860×1690
APF			5.3	5	4.9	4.9	4.8	4.7	4.75	4.7	4.5	4.6	4.6	4.55	4.5
Standard circulating airflow		m³/h	12000			13980			25800			27000
*3 Operating sound		dB	56	56	57	59	60	61	62	62	62	62	63	64	64
On-site piping size	Liquid pipe	mm	φ9.52	φ9.52	φ12.70	φ12.70			φ15.88			φ19.05
On-site piping size	Air pipe	mm	φ22.23	φ22.23	φ25.40	φ28.58			φ28.58			φ31.75
Weight		kg	220	225	230	285	290	298	345	370	375	450	455	460	465
Refrigerant	Name		R410A
Refrigerant	Self-contained filling capacity	kg	8	8	8	10	10	10	14	14	14	16	20	20	21
Running range	Cooling	°C DB	-5~56°C						-5~56°C
Running range	Heating	°C WB	-5~26°C						-5~26°C
*4 Maximum fuse wire current	MFA	A	20	25	32	40	40	50	63	63	63	80	80	80	80
*4 Minimum line current	MCA	A	17.6	21.7	28.4	35.2	40.2	48.1	51	54	55	66	68	70.1	72
Note: Modules can be assembled, the maximum assembled total refrigerating capacity is 64HP.
1. Nominal cooling capacity is determined according to the following conditions: Indoor temperature :27.0℃ DB/19.0℃ WB, outdoor temperature: 35.0℃ DB, equivalent pipe length: 10m, difference of height: 0m; 2. Nominal heating capacity is determined according to the following conditions: Indoor temperature: 20.0℃ DB, outdoor temperature 7.0℃ DB/6.0℃ , equivalent pipe length 10m, difference of height: 0m; 3. The noise level is tested before delivery. In the actual use, the measured noise may be different from the value specified in the table; in the quiet mode at night, noise is reduced by 5-8dB 4. Select fuses or circuit breakers according MFA, and select wiring specifications

Application

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