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25-01-2023, 10:41 PM #1
need help to understand the control
Hi,
i need your help my friends,an hvac engineer have a problem:
he works on a chiller system which includes 3 danfoss pumps with embedded variable frequency driven in each pump.
also the system includes carel pco2 regulator and an other device called Armstrong 6800 IVS.
one of those 3 pumps damaged.so he changed the pump and bring nietz nl 1000 inverter.
he couldn t start the pumps.i think some problem of communication settings .
please i would like to know the role of carel pco2 and armstrong 6800 ivs series on this system .which of them is responsible of starting the pumps,and what configurations do I have to do?
thanks
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26-01-2023, 09:26 AM #2
Re: need help to understand the control
any idea please my friends?
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13-02-2023, 03:50 PM #3
Re: need help to understand the control
Hi! The CAREL pCO2 controller would be managing the main control of the chiller sch as activation/modulaton of the pumps.
You would need to find out what software is running on the CAREL controller in order to correctly determine the issue. I could suggest the following software manual for one of CAREL's standard chiller application softwares but I can't guarantee this will exactly match your partouclar chillers software configuration:
https://www.i-acs.co.uk/store/docume.../0300010EN.pdf