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Heating surface, electrical (retrofitting)
The heating surface should be installed in the inlet duct immediately after the unit.
There should be a safety distance of minimum 150mm from the heating surface to any flammable
materials. The heating surface must be insulated with a fire resistant material. However the electri-
cal box may not be insulated. (Important: instructions from the manufacturer of the heating surface
must be followed).
See electrical chart.
The heating coil is fitted with temperature limiter and safety thermostat state. Here is short-circuited
terminals 3 & 4 of CN6. When installing other hot surfaces should be thought carefully about the
safety of these. Heating coil must be equipped with temperature limiter and safety thermostat.
CV
230 V
Signal for overheatning
Unit
Intet
T7
The heating surface must be activated in the CTS 700 control panel.