Part 3 Test Run

2. Test RunFlowchart

START

Test operation for indoor unit

Operate the unit in cooling mode. No Does Test operation start?

Yes

Is cold air discharged for

No

more than 3 minutes ?

 

Yes

 

Is there any temperature

No

difference between intake and

 

discharged air?

 

Yes

 

Is the operating current

No

normal ?

 

Yes

 

 

 

Operation mode change

 

to Heating mode

 

 

No

Is hot air discharged ?

After Hot Start

 

Yes

 

Refer to part4, Section 7: Electronic Troubleshooting Guide

Refer to part4, Section 5: Cycle Troubleshooting Guide

*Check the load (In/Out Temp.)

*Check pipe length and amount of refrigerant

*Check for abnormal sound in outdoor unit (comp.,Fan, others )

Refer to Troubleshooting

Guide

Normal

NOTE: When outdoor temperature is low, the unit is operated in heating mode during the test run procedure.

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Only for training and service purposes

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Heat Controller VMC30SB-1/VMH30SB-1, VMC09SB-1/VMH09SB-1, VMC18SB-1/VMH18SB-1 service manual Test Run Flow chart, Start

VMC12SB-1/VMH12SB-1, VMC18SB-1/VMH18SB-1, VMC24SB-1/VMH24SB-1, VMC09SB-1/VMH09SB-1, VMC30SB-1/VMH30SB-1 specifications

The Heat Controller VMC30SB-1/VMH30SB-1, VMC09SB-1/VMH09SB-1, VMC24SB-1/VMH24SB-1, VMC18SB-1/VMH18SB-1, and VMC12SB-1/VMH12SB-1 are versatile and efficient HVAC systems designed for residential and commercial applications. These units stand out due to their innovative technologies, user-friendly features, and reliable performance, making them an excellent choice for heating and cooling needs.

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