Finishing The Unit - Biddle DF2 Installation, Operating And Maintenance Manual

DF M
ANUAL
2.8

Finishing the unit

Installation, Operating And Maintenance Manual version 1.0 (16-08-2023)
- contact is open (heating switched off) when the out-
door temperature is higher than the set temperature
on the thermostat.
5. DIP switch 4 on the control circuit board must be set to
OFF(off) (see Unit settings).
2.7.5 Fault signal output
The unit is fitted with a output for error messages.
This is a potential-free contact. It can be loaded to a maxi-
mum of 1A 24V SELV.
On units with electrical heating (type E), this contact is acti-
vated if the high-limit thermostat has switched off the unit.
See the Service chapter for details of how to reset the high-
limit thermostat.
• The OK-C contact is made when the unit is powered.
• The C-ä contact is made when the maximum thermostat
has switched off the unit or when the unit is not powered.
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NSTALLATION
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