@hvac_now: In this video, I'll show you how to check whether a Daikin VRV4 outdoor unit is configured as the Master, Sub 1, or Sub 2 unit. Press BS1 once to enter Mode 1, then press BS3 until the display shows the master/sub status. A display of 0 indicates the Master unit, 1 indicates Sub 1, and 2 indicates Sub 2. This is a quick check alternatively other methods are able to identify through wiring st the condensers #ac #vrv #daikin #hvactechnician

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Tuesday 23 June 2026 17:36:29 GMT

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Liam1992 :

Master and subordinate the manuals are starting to say now. The worlds gone mad

2026-06-23 22:07:27

DaikinRich :

Master has the com wire landed.

2026-07-26 01:14:09

Greendog❄️🥶 :

also master is which ever one you power up 1st

2026-06-24 12:12:39

MH :

Great tip, nice one ! 👍

2026-06-23 19:14:54

Steve Grant267 :

I thought hap1 green led either lit or flashing shows master/slave

2026-06-23 17:43:00

metinace :

Thank you for explaining that there is 0 master and 1 slave, VRF Professor."

2026-06-23 18:35:43

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AC/DP

Open In TikTok:

Region: GB

Tuesday 23 June 2026 17:36:29 GMT

Music

Download

Comments

Liam1992 :

Master and subordinate the manuals are starting to say now. The worlds gone mad

DaikinRich :

Master has the com wire landed.

Greendog❄️🥶 :

also master is which ever one you power up 1st

MH :

Great tip, nice one ! 👍

Steve Grant267 :

I thought hap1 green led either lit or flashing shows master/slave

metinace :

Thank you for explaining that there is 0 master and 1 slave, VRF Professor."

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