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Thread: Daikin R410A Split System
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26-10-2008, 04:14 PM #1
Daikin R410A Split System
Hi Guys.
Sorry to trouble you but I would like to ask a fundemental college question about a proceedure.
On a Daikin 410A split with 9 indoor inverter systems, I was wondering if anyone could give me a step by step guide to the following process.
The system is all installed.
The Suction and Liquid line valves to the condensor are of course shut and the (pre-charge) is complete.
I want to pressure test with Nitrogen then evacuate using a vacuum pump.
Can you give me a simple ABC guide please, as I would like to perform the CORRECT methods PLEASE.
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26-10-2008, 04:25 PM #2
Re: Daikin R410A Split System
As I understood you told about Daikin RMXS and you need installation manual. It should be inside a box with outdoor.
Last edited by DVaider; 26-10-2008 at 04:36 PM.
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26-10-2008, 04:27 PM #3
Re: Daikin R410A Split System
No mention of leak testing using nitrogen in install manual ?.
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26-10-2008, 04:46 PM #4
Re: Daikin R410A Split System
There aren't clear answers in IM, but it means a standard procedure here with nitrogen.
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26-10-2008, 07:35 PM #5
Re: Daikin R410A Split System
There's no such system as a ' split' with 9 indoor inverter systems.
Indoor fan coils are not inverter driven.
Can you describe the system properly? Do you mean a VRV system?
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26-10-2008, 08:37 PM #6
Re: Daikin R410A Split System
An information about RMXS here: http://www.daikin.co.za/news/items/rmxs.jsp
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26-10-2008, 11:15 PM #7
Re: Daikin R410A Split System
We could say "Follow the procedures as laid out in your Refrigerant Safe Handling training", but you would say that it is a college question.
If it is a college question why then do you have access to the installation manual from the system?
You need to perform a strength test, then a leak test before the evacuation process. Testing based on condensing at 55°C.Brian - Newton Abbot, Devon, UK
Retired March 2015
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27-10-2008, 08:40 PM #8
Re: Daikin R410A Split System
The RMXS system uses split indoor models but houses the expansion valves in seperate boxes that can connect to either 2 or three indoors. The condenser operates in a similar way to a mini VRV. Most manufacturers have similar systems but don't push them too hard to protect the Mini VRV/VRF market ..
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29-10-2008, 07:32 PM #9
Re: Daikin R410A Split System
That would be 2 x Daikin R410A Split Series model 5MX's with 5 Room Conditioners going to 1 unit and 4 going to the other unit = 9 units being run by two outdoor units.
I have the manuals because I contacted Daikin UK.
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