JPS5928264Y2 - Air conditioner starting operation device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a starting operation device for an air conditioner.

Conventionally, in starting operation of an air conditioner, the outside air damper of the outside air conduit is opened without distinction from normal operation, or the operator opens and closes the outside air damper by operating an operation button as appropriate.

Starting the air conditioner with the outside air damper open is extremely uneconomical, as will be explained later, and also unnecessarily lengthens the startup time.

Therefore, it is an object of the present invention to provide a starting device for starting an air conditioner by cutting off the outside air damper and automatically opening the outside air damper after the required time has elapsed to switch to steady operation. .

The present invention will be explained based on illustrated embodiments.

FIG. 1 is an operational system diagram of an air conditioner operated by the starting device according to the present invention, and FIG. 2 is a block diagram showing the operational system of the starting device according to the present invention.

In the general air conditioner 1 shown in FIG. 1, outside air conduits 2, 22 and outside air dampers 3, 2
3 is connected.

The outside air dampers 3 and 23 are opened and closed by the motor damper 4 according to the signals of the starting operation circuit according to the present invention.

The outside air damper 3.23 is formed as a damper with a motor.

As shown in FIG. 2, the starting operation circuit 4 operates by turning on the starting switch 50, which causes the timer 6 to operate and the outside air damper 3 to operate.
, 23 are blocked.

Simultaneously with the operation of the outside air dampers 3 and 23, the indicator light 7 connected thereto lights up.

The timer 6 is stopped after the required set time of the timer 6 has elapsed, and the outside air damper 3 is opened at the same time as the indicator light is turned off.

At startup, the heat source equipment 8 is started first, and in the case of cold water/hot water or direct expansion, the refrigerant is passed through the conduit 9 or the refrigerant compressor 30.
is introduced into the cooling coil 10 or the heating coil 11 and circulated therethrough.

After that, the outside air is shut off and the starting operation is performed by circulating only the indoor air.

As a result, indoor air is diverted from the filter 12 to the cooling coil 1.
It passes through the 0 or -JO heating coil 11 and is cooled or heated.

Room air is introduced by the fan 13.31 into the air conditioner 1 according to arrow A and is discharged from the air conditioner 1 according to arrow B into the air supply line.

When timer 6 stops after the required set time has elapsed, indicator light 1
3 is turned off and the outside air damper 3 is opened, so that outside air is introduced from the outside air conduit 2.degree. 22 into the air conditioners 1, 21.

At this time, air is introduced into the air conditioners 1 and 21 and sent out to perform steady operation.

According to FIG. 2, the starting operation device of the air conditioner 1, 21 according to the present invention is activated by turning on the starting operation switch 5, the timer 6 is activated, the ξ indicator light 7 is lit, and the outside air damper 3, 2
3 is blocked.

After the predetermined set time has elapsed, the timer 6 automatically stops, the indicator light 7 goes out, the outside air dampers 3 and 23 open, the starting operation ends, and the operation shifts to steady operation.

Referring to FIG. 3, the operation of the air conditioner starting operation device of the present invention as described above is shown in a block diagram.

According to the present invention, during the startup operation of the air conditioner, outside air is shut off, air conditioning is performed by circulating only indoor air, and after a predetermined set time has elapsed, a steady state operation is performed in which the system is automatically switched to outside air introduction.

As a result, it is possible to achieve the effect that the cost for starting the air conditioner and therefore the operating cost of the air conditioner can be reduced.

Operating cost savings can be estimated as follows.

Heating fuel cost: C□ Cooling power (fuel) cost: C6 Annual equipment operating hours: Tyo, T.

(Does not include starting operation) Percentage of starting operation time: pH, pC External air load ratio during starting operation: Niyo, Accurate outside air during KC starting operation: △C Amount saved when shutting off Starting operation time The cost savings due to shortening is expressed as △C” CHP □KE [+ Cc P c Kc CH2Cc=50.PH=Pc=0
．． 1Ku"'0.5. If Kc=0.3, △C=
5ox0.1(i-0,5) +50x0.1(1-0
, 3) = 2.5 + 1.5 = 4.0 The savings rate will be 4%.

During actual operation, the savings rate will be further increased if the above-mentioned factors are taken into consideration when starting the engine.

[Brief explanation of drawings]

FIG. 1 is an operational system diagram of an air conditioner operated by the starting device according to the present invention, FIG. 2 is a diagram showing the operational system of the starting device according to the present invention, and FIG. 3 is a block diagram thereof. be. Code in the diagram 3...Outside air damper 4...
Drive unit of the outside air damper based on the signal of the starting operation circuit, 5.
...Start operation switch, 6...Timer, 7...Indicator light.

Claims (1)

[Scope of Claim for Utility Model Registration] A starting operation switch, means for performing starting operation by circulating indoor air when the starting switch is turned on, and a first damper signal that is activated when the starting operation switch is turned on and outputs a damper closing signal. a timer that starts counting when a starting operation switch is turned on and operates after a predetermined time; a second damper signal means that operates according to the operation of the timer and outputs a damper open signal; and first and second damper signals. 1. A starting operation device for an air conditioner, comprising an outside air damper drive means for opening and closing an outside air damper based on an output signal from the means.