Mitsubishi SRK71HE-S1 AUXiliary relays & CnT contacts

[spikour2011]

Dear All,

What i'm doing:
I have two units in a computer room and I want to make a simple automation with an external thermostat for making them work on a rotation basis or in case of alarm and depending on the type of alarm to stop or run. I have not the service manual for the Mitsubishi SRK71HE-S1, so i'm unable to identify what each AUX contact or relay does.

Please help on the following if you could.

on Indoor unit:
what (XR5) contact does, how it works and do i need a special connector? is it output or input?

on Outdoor unit:
(52x1-5) What each from five AUXiliary relay does?

or if you are sure that i'll find the answer on the service manual please upload if possible.

Thanks a lot to all.

[install monkey]

best to keep em both running continuously-as by the time u buy an 2 interface kits and a dedicated run/standby panel
http://www.mediafire.com/download/en...ter_SRK-ZG.pdf
click on link above for srk50 service manual

[spikour2011]

Thanks a lot for the Service Manual!! I found the info i'm looking for on page 57.

Many thanks!