auer HRC70 17 - ELECTRICAL CONTROL CONNECTIONS; Connecting the Heat Pump Control

- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL-
17
3.4 - Electrical control connections
3.4.1 - Connecting the Heat Pump control
3.4.1.1 - 2-core sheathed cable
The Heat Pump is pre- tted with a non-polarised 2-core sheathed cable (communication bus). This 10m cable is supplied with and pre-
connected to the Heat Pump. It must be connected to the Pilot.
If the connection needed is longer than10m, replace this cable with a 20m cable, which is available to order (Ref.751005).
• On the Pilot, cut the bus link to the right length: LOOPS ARE FORBIDDEN.
• On the Pilot, cleanly remove 10cm of the shielding to prevent any short circuits.
• Connect the two wires (stripped to 10 mm) to the Pilot.
• IMPORTANT: DO NOT connect the bus link shielding to the ground of the Pilot.
Diagram of connection to Pilot without
the connection cable braided shielding
on the Pilot being grounded.
Diagram of connection to the Heat
Pump with MANDATORY grounding of
the connection cable
braided shielding (faston
terminal near 2-point connector).