3 Commissioning
Page 28
User’s Manual for ION-U 7/8/85/17/19
3.2.3. Grounding (Earthing)
The RU must be grounded (earthed).
1.
Connect an earth-bonding cable to the grounding bolt connection provided on the
outside of the remote unit (near the Mains connector) as shown in figure 3-8. Do
not use the grounding connection to connect external devices.
figure 3-8 Grounding bolt
figure 3-9 Grounding bolt, schematic view
2. After loosening the hex nut, connect the earth-bonding cable between the two
washers as illustrated in the figures above.
3. Then, fasten all parts again by tightening the the hex nut.
4. Connect the other end of the ground wire to a suitable permanent ground
following local electrical code practices.
