WHHRM300DC & WHHR400DC 1
Application
Chapter 1
These appliances are very economic Vectaire heat
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• completely new frost protection system that ensures op
timum performance of the appliance, even at very low at
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The appliance comes ready for use. All control equipment has
been mounted and checked in the factory.
On installation, the appliance must be connected to the air
ducts, the condensate discharge, the mains supply and the
multiple switch.
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with the aid of the control panel on the appliance. See Chapter
6 for a detailed description.
The possibilities of these WHHRs can be extended by using
the separately available option pcb that the installer can place
in the appliance. For a description of the possibilities of the op
tion pcb, see section 4.6 and wiring diagram section 9.4.
This option pcb is described in more detail in the installation
instructions that come with the option pcb.
It is possible to connect a preheater to the basic pcb of the
WHHRDCs without having to install an option pcb (see section
9.5).
