Chiltrix Inc. www.chiltrix.com
Onboard External relay Control – Cont’d
Once the relays are wired as shown, the cx50 DIN setting must be changed
NOTE: RELAY CONTROL SHOULD NEVER BE USED FOR A HEATING OR COOLING “CALL”. IT IS ONLY FOR
MODE SELECTION. Heating or cooling calls are not needed or allowed with cx50, as it monitors the
returning water temperature and always knows what it needs to do.
The switch status can be displayed in the C parameters
C63 is X06 AC heating switch mode status; 0=OPEN; 1=CLOSE
C64 is X07AC cooling switch mode status; 0=OPEN; 1=CLOSE
NOTE: Using this relay control option will override inputs from the Chiltrix standard wired
controller.
See the Psychrologix manual for important additional information if this applies to you.
Timers as explained elsewhere in this manual will NOT be available when relay control is
used.
28
IMPORTANT
The C,H, Com terminals are
DRY CONTACTS. Do NOT apply
Voltage to the contacts. Only
connect relays as explained.
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