user manual

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Can I use my CM921 to control my air-conditioning system?

Yes, if your system has been set up correctly you can use your thermostat to control

the cooling. To switch the thermostat between heating and cooling modes press

the

or buttons together for 5 seconds in any of the product operating modes

(AUTO, MAN or OFF). The text ‘COOLING’ will be displayed for a moment on the

screen to indicate the cooling operation is now active. The factory default program

for cooling is speciﬁed in the table below, but this can be modiﬁed in the same way

as the default heating program:

      

 6:30 8:00 12:00 14:00 18:00 22:30

 24°C 28°C 24°C 28°C 24°C 24°C

If something happens to my heating system how can I check that the thermostat

is working?

Refer to the Troubleshooting Guide on page 15. If you still need assistance after this

call your installer. The thermostat should only be opened or removed by a qualiﬁed

professional to prevent possible injury from electric shock and/or damage to the

product.

