JP2005257162A - Device for testing drain-up function of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for testing drain-up function of an air conditioner, which can test the drain-up function of the air conditioner before power source construction applied to the air conditioner, and thus can efficiently conduct the relevant test before busy season for interior construction. <P>SOLUTION: A device for testing drain-up function of an air conditioner 2 having the drain-up function for discharging drain water with a drain-up pump when the drain is stored in a drain pan 2a up to a present level, the device comprising a tank 5 provided on a movable device base table 4 to store therein water for test use, a water supply pump 6 which supplies the water in this tank 5 to a drain pan 2a of the air conditioner 2, and tentative piping 7 connected to this water supply pump 6 on the discharge side to guide the water to the drain pan 2a, and further comprising a control means 8 which, upon actuation of the drain-up pump, stops the water supply pump 6 by a signal indicating such actuation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a test apparatus suitable for use in testing a drain-up function of an air conditioner installed on a ceiling.

When an air conditioner is installed inside a newly constructed building, air conditioning work such as installation of the air conditioner, piping, wiring, and operation confirmation occurs in parallel with the construction work related to the frame and interior.
By the way, the above air conditioner usually has a drain pan that primarily stores drain generated during operation, and a drain up pump that drains the drain through the drain pipe when the drain in the drain pan reaches a certain level. Up function is provided.

Therefore, for this type of air conditioner, it is necessary to test whether or not the drain up function operates normally at the final stage of a series of air conditioning work.
Conventionally, such a drain up function test is performed by energizing each individual air conditioner after the connection of the drain pipe and the wiring of the electrical system, and manually putting water into the drain pan. The function is checked and the drain pipe is checked for leaks.

However, the conventional drain-up function testing method has a problem in that it requires a lot of work because it is performed manually for each air conditioner.
In particular, in the above test for an air conditioner installed on the ceiling, the workability is poor and, in general, a plurality of air conditioners are installed in one room unless it is a small room. Due to factors such as the existence of the machine and the difficulty in checking for leaks, there was a problem that the above work required more labor.

Furthermore, in the above conventional drain-up function test method, the most important problem is that it is implemented after the piping and wiring to the air conditioner are completed, so the implementation period is a complicated period just before the completion of the construction work. It is in the point which overlaps.
That is, since the construction work is in the final stage of the interior and ceiling finishing works at that time, there is a problem that it is difficult to adjust these works and the above test time.

  In addition, if the test causes inconvenience such as drain pans or piping leaks, the interior and ceiling finish may be soiled. There was a problem that it was accompanied by difficulties.

  The present invention has been made in view of such circumstances, and it is possible to test the drain-up function of the air conditioner before the power supply construction for the air conditioner. Therefore, the test can be efficiently performed before the complicated period of the interior work. It is an object of the present invention to provide a test apparatus for a drain-up function of an air conditioner that can perform the above.

  In order to solve the above problem, the invention according to claim 1 is directed to the drain up in an air conditioner having a drain up function for draining the drain by a drain up pump when the drain is accumulated in the drain pan to a set level. A functional testing device, a tank for storing test water provided on a movable device base, a water supply pump for supplying water in the tank to the drain pan of the air conditioner, and a discharge of the water supply pump And a temporary pipe for guiding the water to the drain pan, and when the drain up pump is activated, control means for stopping the water supply pump by the signal is provided. To do.

  The water supply pump and the air conditioner of the test apparatus can be driven by directly connecting the power supplied from the temporary power supply for the construction of the building to the power supply unit of the water supply pump and the power supply unit of the air conditioner. If the power supply unit of the test apparatus is provided with a distribution board that can supply power to the air conditioner, the temporary power supply and the test apparatus are connected by a power cord, and the test apparatus and the individual air conditioner that performs the test Since the drain-up function test for a plurality of air conditioners can be continuously performed by sequentially electrically connecting the two, the power supply to these test apparatuses and the air conditioners becomes easier and preferable.

  According to the first aspect of the present invention, the test apparatus and the air conditioner according to the present invention are supplied with power from the temporary power source, and the water supply pump is operated to supply the test water in the tank to the drain pan of the air conditioner. I will do it. When the water level in the drain pan reaches the set level in the air conditioner, the drain up pump is activated and drains the water in the drain pan to the outside through the drain pipe.

  At this time, when the drain up pump is activated, the water supply pump is automatically stopped by the control means that has received the signal. The drain up pump automatically stops when the water in the drain pan falls below a set level.

Thus, according to the test apparatus for the drain-up function of the air conditioner, the drain-up function test that has been performed manually can be easily and efficiently performed.
In addition, by using the above test apparatus, it is possible to perform the test that has been performed after the completion of the power supply construction immediately after the air conditioner is installed, so the test is performed before the complicated period of the interior work. be able to.

As a result, there is no risk that the interior or ceiling finish will be soiled in the event of a leak or the like with the interior work, and the repair work is facilitated.
For this reason, the said test apparatus has a remarkable effect, especially when performing the said test with respect to the air conditioner installed in a ceiling.

FIG. 1 and FIG. 2 show an embodiment of a test apparatus 3 suitable for testing a drain-up function in an air conditioner 2 installed on a ceiling 1.
The test apparatus 3 is installed at an apparatus base 4 that can be moved by a caster 4 a, a tank 5 that is provided on the apparatus base 4 and stores water for testing, and is installed at the bottom of the tank 5. A submersible pump (water feed pump) 6 for supplying water in the tank 5 to the drain pan 2a of the air conditioner 2, and a hose (temporary pipe) 7 connected to the discharge side of the submersible pump 6 for guiding the water to the drain pan 2a; And a power supply unit (control means) 8 having a control function for controlling the start / stop of the submersible pump 6.

Here, the control function in the power supply unit 8 will be described with reference to FIG. 2. The 200 V power supplied from the temporary power supply at the construction site is supplied to the 100 V power source for driving the submersible pump 6 and the air conditioner by the distribution board. The power is divided into the supplied 200V power source.
When the power cord or the temporary power cord 2b of the air conditioner 2 is connected to the power unit 8 of the test apparatus 3 and the power snap switch 21 provided on the air conditioner 2 is pressed, the electromagnetic relay 22 causes the air conditioner to The second drive circuit 20 becomes a closed circuit and enters an operation state, and an indicator lamp 23 to that effect is turned on.

On the other hand, when the outlet 6a of the submersible pump 6 is connected to the connector 10b of the drive circuit 10 and the pushbutton switch 11 for activation is pressed, the circuit 10 is closed by the electromagnetic relay 12 and the submersible pump 6 is driven, and the operation display 13 Lights up.
In this control function, an interlock mechanism is provided in which the circuit 10 of the submersible pump 6 is not closed by the electromagnetic relay 22 unless power is supplied to the air conditioner 2 in advance.

  When the water level in the drain pan 2a of the air conditioner 2 rises and reaches the set level by the operation of the submersible pump 6, the flow switch of the air conditioner 2 is activated and the drain up pump is activated. Then, the electromagnetic relay 14 is actuated by this detection signal, the submersible pump 6 is stopped by opening the circuit 10, and the operation display 13 is also turned off. If it is desired to manually stop the submersible pump 6, pressing the pushbutton switch 15 similarly opens the circuit 10 and turns off the operation display 13.

  Further, in this control function, when the temperature of the circuits 10 and 20 rises due to an overload of the submersible pump 6 or the air conditioner 2, etc., the thermal relays 16 and 24 and the earth leakage circuit breakers that open the circuits 10 and 20 are provided. Safety devices such as 17 and 25 are provided.

  In addition, although the signal line which concerns on the electromagnetic relay 14 between the said flow switch and the circuit 10 may be taken out and wired directly from each air conditioner 2, generally several air conditioners 2 are installed in the ceiling 1. In such a case, since the centralized panels of these air conditioners 2 are arranged on the floor, they can be easily taken out from the centralized panel and wired to the test apparatus 3.

Next, a method for conducting a drain up function test using the test apparatus having the above-described configuration will be described.
First, the operator M moves the test apparatus 3 to a position below the air conditioner 2 by pressing the apparatus base 4 and the power supply unit 8 is connected to the temporary power supply 30 by the power cord 31. Moreover, the power supply unit 8 and the air conditioner 2 are connected by the temporary power cord 2b. In parallel with this, the hose 7 connected to the discharge side of the submersible pump 6 is guided to the drain pan 2 a of the air conditioner 2. Moreover, the lower part of the drain pipe 32 of the air conditioner 2 is removed, and a bucket 33 for receiving drainage is provided below the drain pipe 32.

Then, when the push button switch 11 is pressed, the submersible pump 6 is activated to supply the water in the tank 5 to the drain pan 2a.
And when the level of the water in the drain pan 2a reaches the set level in the air conditioner 2, the flow switch which detected this will act | operate and a drain up pump will start. Then, the electromagnetic relay 14 is activated by this detection signal, and the submersible pump 6 is stopped.

On the other hand, by the operation of the drain up pump, the water in the drain pan 2 a is sent to the drain pipe 32 and drained into the bucket 33.
Thereby, the operation of the drain-up function in the air conditioner 2 is confirmed, and the presence or absence of leakage in the drain pipe 7 is also checked.

Thus, according to the drain-up function testing device 3 of the air conditioner 2, the drain-up function test that has been performed manually can be easily and efficiently performed.
In addition, by using the test apparatus 3, it is possible to perform the test, which has been conventionally performed after the completion of the power supply work, immediately after the air conditioner 2 is installed. It can be performed.

As a result, there is no risk that the interior or ceiling finish will be soiled in the event of a leak or the like with the interior work, and the repair work is facilitated.
Therefore, as shown in the present embodiment, the test apparatus 3 has a remarkable effect particularly when the test is performed on the air conditioner 2 installed on the ceiling 1.

It is a front view which shows one Embodiment of the testing apparatus of this invention, and the test state using the same. It is a schematic wiring diagram which shows the control means of the said test apparatus.

Explanation of symbols

2 Air Conditioner 2a Drain Pan 3 Test Equipment 4 Equipment Base 5 Tank 6 Submersible Pump (Water Supply Pump)
7 Hose (temporary piping)
8 Power supply unit with control mechanism (control means)

Claims (1)

When the drain is collected up to a set level in the drain pan, the drain up function test apparatus in the air conditioner having a drain up function for draining the drain by a drain up pump,
A tank for storing test water provided on a movable device base, a water supply pump for supplying water in the tank to the drain pan of the air conditioner, and a water supply pump connected to the discharge side of the water supply pump A provisional pipe leading to the drain pan, and when the drain up pump is activated, a control means for stopping the feed water pump by the signal is provided. Test equipment.

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