The total supply air volume is essentially the same.
No, because the unit operates with positive-pressure air supply.
Supply air volume is the total air delivered to the room, consisting of fresh air plus return air. Fresh air volume is the outdoor air brought in. Exhaust air volume is the stale air expelled from the room by an exhaust fan.
Yes, we are a professional manufacturer focusing on wine cellar climate control and we are professional air treatment solution provider. We already have more than 20 years air treatment solution experience.
Yes,we do. Thenow has a professional R&D team,OEM or ODM orders are welcome here.
30%TT deposit, balance paid before delivery -- amount > USD10,000
100%TT deposit -- amount < USD10,000.
Normally 30 days,but depends on the goods,for some our standard units,we always prepare stock and fast delivery is available.
Shanghai port or others as your request.
The cooling unit provided by our company is guaranteed for one year and the fan is guaranteed for two years and the compressor for three years from the date of arrival. During the warranty period, any defects due to workmanship or materials, we guarantee to repair or replace the machine free of charge. (the machine due to the use of dust ,corrosive liquid and other non-machine quality reasons for damage is not covered by the warranty.)
Some return air is recirculated internally—about 50 %.
Temperature: 5 – 41 °C; Humidity: 45 – 99 %. Factory default: 50 %.
The supply air temperature is higher than ambient; the indoor temperature rises by about 3 – 4 °C above ambient, depending on conditions.
Dehumidification capacity, fresh air volume, supply air volume, and applicable area—refer to each model’s specifications. The combined length of supply and return ducts must not exceed the limit for the respective model (the longest single run).
Model 300: 10 m; Model 400: 15 m; Model 500: 18 m. The return duct is recommended to be about 3 m; centralized return air is advised (each room can use transfer grilles to the return-air zone).
The length must not exceed the stated value; otherwise, the compressor may trip on pressure protection under extreme conditions. If the length is much shorter, noise can increase.
In a sheltered indoor location, protected from rain and direct sunlight, and easily accessible for operation.
The factory-supplied standard controller is used.
Connection to the other brand APP is not currently supported. However the unit has an RS-485 communication port for smart-home integration.
The air system runs in the selected mode, and humidity is automatically sensed and controlled to the set point—starting and stopping as required.
A run-time counter is provided (factory default 1,440 hours). Filters should be replaced when the timer alerts. Three filter stages are included: primary G4, secondary F7, and high-efficiency H13. Single-pass efficiency is about 80–90 %. Because indoor air is always recirculated in every mode, effectiveness can decline over time.
The metal heat-exchange core does not need replacement. For maintenance, wash it with tap water every 3–6 months depending on local dirt levels and usage frequency.
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