Protherm 100EC, User, Installation And Servicing Instructions, Page: 4 / 32

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2
100EC
Diagram 1
USERS INSTRUCTIONS
The Protherm 100EC is a wall mounted combination boiler providing central heating and instantaneous domestic
hot water.
These instructions should be carefully followed for the safe and economical use of your boiler.
Gas leak or fault
If a gas leak or fault exists or is suspected, turn the boiler and gas supply off and consult the local gas company
or your Installer/Service provider.
In case of power supply failure
The boiler no longer operates.
As soon as power supply is restored, the boiler will restart automatically.
In case of loss of water in the system
CAUTION: The boiler is installed as part of a sealed system which must only be drained and filled by a competent
person.
If the pressure LED diod (2) flashes the pressure in CH system is less than 1 bar and the system must be filled
up immediately.
Important notice: A central heating system cannot operate satisfactorily unless it is properly filled with water and
unless the air initially contained in the piping systems has been properly bled off. If these conditions are not
satisfied, air noise will occur within the system and the boiler may fail to operate.
Air in the heating system
Persistent air in the heating system may indicate leaks in the system or corrosion taking place. Call your Installer
/Service provider.
Overheating safety
In the event of problem, the overheat safety device causes safety shutdown of the boiler. If this happens, call
your Installer/Service provider.
CONTROLS AND LIGHTING
The control panel is located at the lower front of the boiler casing. The controls on this panel allow the boiler to be
started, shut down, controlled and monitored during use, see diagram 1.
Controls:
1 – mains on/off switch 7 – pressure button
2 – system pressure LED 8 – reset button
3 – central heating LED 9 – decrease button
4 – domestic hot water LED 10 – comfort mode LED
5 – timeclock 11 – mode button
6 – increase button 12 – display
2 3 4
12
4
11
10
9
8
2 7 6 5
1