JPH05231656A - Automatic test-run device for hot water heating system - Google Patents

Abstract

PURPOSE:To perform test-runs of all terminal units automatically on the heat source machine side. CONSTITUTION:A water-level detector 2, and display unit 3 are constituted in a heat source machine control circuit 1, and a test-run result decision unit 6 is constituted in a terminal unit control circuit 5, and both units are connected by communication control units 4, 7 and a signal wire 8 to make two-way communication possible. By doing this, since the water level check and performance check of each terminal unit can be automatically performed at the heat source machine side by control circuits 1, 5, the labor which is required for the test-run can be drastically reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trial run device when a hot water heating system is installed.

[0002]

2. Description of the Related Art When a heating system in which a heat source unit and a terminal unit (radiator) are connected by a hot water circulation pipe is installed, first, water is filled in the heating system, and connection mistakes in pipes and confusion of signal system are caused. It is necessary to make a trial run to see if there are any, whether the performance is as specified, and so on.

In the conventional system, the information between the heat source device and each terminal device is only the operation command from the terminal device, and the information such as the operation command from the heat source device to the terminal device and the test operation result from the terminal device. Cannot be sent.

Therefore, when performing water filling and trial operation, a method is used in which a person goes around each terminal device for driving operation and a person visually judges the operating conditions of the heat source device and the terminal device.

[0005]

Therefore, there are the following drawbacks.

A. People must be on during the trial run.

B. In order to fill each individual terminal with water and check it for each terminal, it takes a lot of time and a lot of manpower is required when many systems must be commissioned in a short period of time.

C. Since information is transmitted at the level of the voltage passing through the signal line, the amount of information that can be transmitted is limited, and the number of signal lines must be increased in order to increase the information.

D. Information cannot be transmitted from the heat source unit to the terminal unit.

E. In order to operate each terminal, you have to move to the terminal one by one.

An object of the present invention is to provide an automatic test operation device in a hot water heating system which does not have the drawbacks described in a to e.

[0012]

The constitution of the present invention is as follows.

The heat source unit control circuit including a water filling determination unit, a display unit, and a communication control unit with the terminal unit, and a terminal unit control circuit including a test operation result determination unit and a communication control unit with the heat source unit and a heat source unit control circuit An automatic test operation device in a hot water heating system, comprising a signal line connecting a communication control unit and a communication control unit of a terminal control circuit.

[0014]

[Function] When the trial run switch in the heat source machine control circuit is pressed,
Water filling is sequentially performed in the system of each terminal unit, and the completion of this water filling is checked by the water filling determination unit on the heat source unit side.
When the water filling is completed, a heating trial operation signal is transmitted from the heat source unit control circuit side to the terminal unit side, and at the same time, the heat source unit starts heating operation to circulate hot water in the terminal unit. The test operation result determination unit on the terminal side makes a determination by a method such as detecting the temperature rise of the heat exchanger in the terminal device, and transmits the result from the communication control unit to the heat source device via the signal line. The heat source machine displays OK or NG on the display unit according to the result. This test operation is also performed for the cooling operation when the cooling function is added. The heat source unit sends a cooling test operation signal, receives a test operation result, and displays the result.

[0015]

EXAMPLE FIG. 1 shows an example of the present invention.

Reference numeral 1 denotes a heat source machine control circuit, and this circuit 1 is composed of a water filling determination section 2, a display section 3 and a communication control section 4.

Reference numeral 5 is a terminal device control circuit, and this circuit 5 is composed of a trial operation result judgment unit 6 and a communication control unit 7.
Reference numeral 8 is a signal line.

An example of test operation in the above embodiment will be described below.

A. When the trial run switch of the heat source machine control circuit 1 is pressed, the trial run signal is input from the heat source machine side into the terminal machine control circuit 5 from the communication control section 4 of the terminal machine control circuit 5 via the signal line 8. Then, water filling is performed in the system of the target terminal device, and this water filling is checked by the water filling determination unit 2.

B. Next, the terminal device and the heat source device start the heating operation by the heating trial operation signal from the heat source device control circuit 1, and the heating trial operation is checked by the output from the trial operation result determination unit 6 of the terminal device.

C. If the terminal is an air conditioner, the tests other than those related to water filling are also performed for cooling.

D. For all terminals, perform trial operation in sequence and check the performance.

[0023]

As described above, the present invention has the following effects by incorporating the control circuit capable of automatically performing all the test operation tests between the heat source device and the terminal device.

A. After the trial run switch of the heat source machine is operated, the trial run is performed automatically, so there is no need to keep people on during the trial run.

B. For all terminals, water filling and trial operation can be performed only on the heat source machine side, so there is no need for a person to go to each terminal side.

C. One person can simultaneously perform test runs of multiple systems.

D. Due to the two-way communication method, it is possible to accurately identify and test the hot and cold terminals in the system.

E. Even if the amount of information is large and the number of test items is large, it can be handled.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a test operation device according to the present invention.

[Explanation of symbols]

 1 Heat Source Machine Control Circuit 2 Water Filling Section 3 Display Section 4 Communication Control Section 5 Terminal Control Circuit 6 Test Run Result Judgment Section 7 Communication Control Section

Claims (1)

[Claims] 1. A heat source device control circuit including a water filling determination unit, a display unit, and a communication control unit with a terminal device; a terminal operation control circuit including a test operation result determination unit and a communication control unit with a heat source device; An automatic test run device in a hot water heating system consisting of a signal line connecting the circuit communication control unit and the terminal unit control circuit communication control unit.