Viessmann VITOCROSSAL 300 Installation Instructions Manual page 25

Vitocrossal 300 CU3A 26 to 57 Installation
External Cables Connection
Strip up to 4 in. (100 mm) of insulation from the cables.
(continued)
Applying strain relief
On-site cables
1. Cut the tip from the rubber cable restraint.
2. Feed the cable through the rubber cable restraint.
3. Install the cable restraint with cable into the
connection housing.
Cables with moulded strain relief
1. Remove the rubber strain relief from the connection
housing and discard.
2. Install the plug into the counter plug on the control
board.
3. Install the cable's strain relief into the vacant mount
of the connection housing.
Control Connections
25