Calculation method of required cooling and heat in the ultra-thin fan-coil room

As a dealer, you need to know how to calculate the required cooling and heat in the room?

I will explain to you in detail, the calculation method of the required cooling capacity and heat in the ultra-thin fan-coil room.

1. Moonlight ultra-thin exposed fan coil unit?YG-20 rated cooling capacity is 3.75kw?and YG-30 rated cooling capacity is 5.5kw.

1) Moonlight ultra-thin fan coil YG-20 rated cooling capacity 3.75kw:

The working cooling capacity in the medium speed is: the rated cooling capacity multiplied by 0.75

Formula:

3.75kw*0.75=2.81kw

2) Moonlight ultra-thin fan coil YG-30 has a rated cooling capacity of 5.5kw

The working cooling capacity in the medium speed state is: the rated cooling capacity multiplied by 0.75

Formula:

5.5kw*0.75=4.125kw

2. Three factors determine the indoor thermal insulation effect: room structure, room material, and room airtightness

(1) The influence of room material

Standard building: refers to a brick concrete wall, normal insulation, with thermal broken aluminum doors and windows, this insulation effect is better.

The cooling load?of the colored?steel structure construction requires is 200w per square meter. The colored?steel plate structure is generally a factory or workshop, but we do?not recommend using Moonlight ultra-thin fan coils in the workshop/factory. It is recommended to use horizontal concealed or exposed fan coils.

How much cooling capacity is needed?for a normal wooden house structure?

(2) The influence of room structure

1) The size of the room

2) The temperature difference between the walls or windows and outside in the room?

(3) The influence of room airtightness

1) Door and window area

2) Heat transfer coefficient of room structure

3. How much can the indoor temperature reach under different wind speeds?

According to the above-mentioned cooling and heating, the model of moonlight fan coil is selected, and the estimated value of room temperature effect is as follows:

1) Low-speed working condition: About 1 hour, the room with good airtightness and heat preservation can reach 18 degrees, and the room temperature of airtightness and heat preservation is generally 14 degrees;

2) Medium-speed working status: About 40 minutes, the room with good airtightness and heat preservation can reach 20 degrees, and the general room temperature of airtightness and heat preservation is 17 degrees;

3) High-speed working condition: About 30 minutes, the room with good airtightness and heat preservation can reach 25 degrees, and the room temperature for airtightness and heat preservation is generally 20 degrees;

4. There are two control modes for ultra-thin fan-coil fan?speed: automatic mode and manual mode.

(1) Automatic mode adjustment method: click the fan?speed button, the thermostat displays AUTO

(2) Manual mode adjustment method: click the wind speed button to display the fan?speed

(3) When the 130mm ultra-thin fan coil does not reach the set temperature, if the fan?speed is in automatic mode, the motor can automatically adjust the fan speed according to the?temperature difference. In manual mode, it will run at a fixed fan?speed?and?stop running when the room temperature reaches the set temperature.

(4) The two control modes are available to the?ultra-thin fan coil. After the room?temperature reaches the set temperature, the energy-saving mode is turned on and the motor stops working; Under the heating mode, when the room?temperature is lower than the set temperature, the motor automatically continues to run to provide?heat. Under the cooling mode, when the room?temperature is higher?than the set temperature, the motor automatically continues to run to provide?cooling.

5. Working principle of automatic fan?speed mode:

(1) Ultra-thin fan coil unit with a room?temperature sensor?can sensitively sense room?temperature changes. When the temperature sensor?senses that the room?temperature has reached the set temperature, it transmits a signal to the thermostat, and the thermostat can automatically lower the fan?speed;

(2) If the indoor airtightness or heat preservation is not so good, when the room?temperature is lower than the set temperature, the temperature probe will transmit a signal to the thermostat, and the wind speed will automatically increase.

While maintaining a comfortable indoor temperature, at the same time it can also save energy and avoid unnecessary waste of resources.

6. The relationship between fan?speed and different level

(1) The speed of the 130mm ultra-thin fan coil is 200-2200rpm, and the five-level fan?speed is adjusted before the product leaves the factory.

(2) The fan speed of 130 ultra-thin fan coil has?5 levels, and the speed of each level: 600rpm, 750rpm, 900rpm, 1050rpm, 1200rpm.

(3) The motor speed of this product is 200-2200rpm, you can adjust the fan speed?according to your own requirements. If adjust the highest level?to 2200rpm?and?the lowest level?to 200rpm, then the middle levels?do not need to be adjusted, and they will?automatically be evenly be distributed.