Guest room control unit

[tuan-anh]

Hi team
GRCU typically used to control FCU guestroom of chiller system. How about solution for GRCU to control indoor unit(IDU) of VRV system?
As I known, all IDU  are controlled automatically by signal loop wiring to Outdoor unit, so the only solution to control indoor unit is logical interface GRMS system with VRV system, isn't it.
Please give me advice.
Thanks
Arup HCM

[StacyVanDolahEvans · Accepted solution]

Hi Anh Nguyen,

Can you post your email address so we can connect you with the right people to support locally 

There are multiple ways to do it

It normally depends on project to project  and on which is the brand of AC  being used in the hotel .

I have attached two schematics , hopefully it helps

[StacyVanDolahEvans · Accepted solution]

Second Schematic 

[tuan-anh]

My email: tuan-anh.nguyen@arup.com
Thank in advance