Helios AIR1-AAHK Installation And Operating Instructions Manual page 5

Installation and Operating Instructions
CHAPTER 3
INSTALLATION
Terminal Box Heater AIR1-AAHK
3.0 Installation
The AIR1 unit must be fully isolated from the mains power supply and secured against
switching on again before any maintenance or installation work or opening the terminal
compartment! Electrical connections must only be carried out by an authorised electri-
cian according to wiring diagrams. The electrical connection must remain fully isolated
from the mains power supply until final assembly!
1. Open the cover of the electrical terminal box of the AIR1 unit.
2. Mount the terminal box heater on the guide rail (see Fig. 1).
3. Connect the provided cable from the electrical terminal box to the heater (Fig. 2).
4. Connect the other end of the cable to the marked connection terminal in the terminal box
of the unit (see wiring diagram in the installation and operating instructions for the corre-
sponding AIR1 ventilation unit).
2 2
EN
Fig.1
Fig.2