Webasto thermo top evo, Руководство по установке

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7 | Coolant System
7.4 Circulation Pump Installation
Fig. 13: Circulation Pump Installation Positions -
U4847
In most cases, the circulation pump comes pre-as-
sembled and is attached to the heater mounting
bracket. The circulation pump can also be mounted
remotely if needed.
The circulation pump must be installed in the coolant
circuit on the pressure side on the heater (heat-
exchanger inlet). Ensure the correct direction of flow
from the circulation pump to the vehicle’s coolant
circuit. The installation position of the circulation
pump must be chosen so that the circulation pump is
self-bleeding. It must be possible for the air trapped
in the circulation pump to escape upward via the
connection piece. Incorrect installation can result in
malfunction of the circulation pump.
7.5 Inspecting the Coolant
System
After the heater and all coolant-carrying compon-
ents have been installed, the entire coolant system
must be checked for leaks with the system pressure
specified by the vehicle manufacturer. To do this,
start the engine and heater. Allow system to heat
until the radiator thermostat opens.