dip switches on hitachi twin split

[moondawn]

hi guys

I recently installed a hitachi twin split system in a house, 2 ducted indoors in the loft feeding 2 bedrooms with seperate controllers.
i test ran on heat and cool one of the bedroom units, the other i could not test due to the bedroom walls being painted and they did not want dust kicking around the bedroom and messin the walls up

Outdoor model no: RAS 2HVRN1

my question is: do i need to address these units in any way to make one a master and one a slave and also will these units run okay being in 2 seperate rooms on two seperate controllers?

thanks
lee

[Imp]

You cant twin with a RAS 2 HVRN1. You can only twin with a RAS 3 and above.

The only hope you have is to dip the outdoor to tell it that it is a size 3 and also do the same on the indoors to tell them they are size 1.5.

What indoors have you used? I am assuming that they are RPI-1 but I fear they may be something else.

The electrical panels on the indoor and outdoor have the dipswitch settings. You need to be looking for DSW3.

Who sold you this system?

[Imp]

Sorry - one other thing also. You cant control these units individually. It is not a 2-pipe VRF nor is it a multi. Hitachi do supply an IVX 3HP model which will allow you to do individual control. You may be able to get away with master and slave but it is pointless.

[moondawn]

hi there

I have got mixed up with the split system i also installed.

the model number is RAS 3 HVRNME

the main thing i would like to know is dip switch settings and also is there a problem with this having two remotes and being in 2 different rooms.

if bedroom 1 is calling for cooling but bedroom 2 is off will the gas still go to the OFF unit therefore freezin the coil??


thanks lee