Installation and Operation manual ETHOS 36C and ETHOS 54C –1511/05-issue1
Page 20
programme is started when the power supply is switched on for the first time or when pressing the Info button after
a failure.
This start-up programme takes 2 minutes: the display shows code ’t8’. After the bleeding programme has finished,
the boiler will start to operate.
DHW circuit
The cold and hot tap water connections are located at the bottom of the appliance. Connect the pipes according to
statutory regulations. Adjust the built-in water flow rate restrictor cock (No. 11, 2.2 Explanation of parts) while the
appliance is switched off.
Measure the water flow rate at the farthest hot water tap outlet and adjust the restrictor.
Note: the Ethos 54C is not fitted with a flow restrictor.
Shutting down the appliance
1. Isolate the boiler from the electrical supply and close the gas tap.
2. When working at the water intake side of the appliance or CH system, always isolate the boiler from the electrical
supply.
3. When shutting down the appliance because of frost risk, drain the central-heating boiler and installation. To do so,
open the filling and drain cock of the central heating installation and the boiler drain cock at the lower right side of
the appliance. In case of frost risk, also drain the water pipe.
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