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INTRODUCTION
Compatibility
This documentation is compatible with the programs Roof Top and Aircoolair:
Ranges Baltic I, Baltic 410, Flexy I, Flexy II, FX, AC and LV, starting from the version 23.0
Important Warning
Any parameter modification should be carried out by trained and licensed competent
technician.
Before start-up or restart of a unit controlled by Climatic 50, it is mandatory to check adequacy between Climatic
50 and the unit with its options.
38xx menus for unit and options
39xx menus for communication
In case of wrong parameters, I/O links could be incorrect and may create some operation problems for the units
and ultimately breakdowns.
Lennox cannot be held responsible for any claims on the units due to a wrong parameters sequence or a
parameters modification carried out by non competent technicians. In this case, the warranty will be legally null and
void.
Any wiring modification on the CLIMATIC 50 must be done by Lennox technician or employees
having valid electrical qualification and authorisation.
For any modification of wiring on the 24V supply or on 4-20mA sensor, check the polarity prior to apply the
power. Wrong polarity may cause serious damage and destroy the Plan network. Lennox will not accept liability for
damage caused by wrong power connection or any wiring modification done by people without valid training and
qualifications.
Any external connection with the unit, using 24Vac voltage should not exceed a length of more than 30m. It
concerns external contacts connected to Climatic™50 logical inputs or humidifier control connection to the output
0-10v.
Over 30 m, the installer must interface this information with relays or converters or a external 24V supply.
In any case, the 24Vac control voltage must not be used to drive external function with Climatic™50 logical
output
WARNING: Separate as much as possible probes, displays, logical input cables from power
cables with strong inductive load, in order to avoid possible electromagnetic perturbations
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