Combi 90 Outdoor Module
2
Subject
Page
Section
1
User instructions ...................................... 2
2
Technical information .............................. 3
3
General boiler information ....................... 5
4
Boiler installation ..................................... 9
5
Wiring diagrams ....................................... 14
6
Commissioning ......................................... 16
7
Information for the user ........................... 17
LIST OF CONTENTS
1 - USER INSTRUCTIONS
To access the Outdoor module controls, remove the front
panel by turning the handle and withdrawing it forwards
at the bottom.
1
Ensure that - There is sufficient fuel, of the
correct type, in the supply tank and all fuel supply
valves are open. The water supply is on. The
electricity supply to the boiler is off. The boiler
On/Off switch is set to OFF, the pump and burner
switches are set to off (the neons in the switches
are not alight). The room thermostat (if fitted) is at
the desired setting. The boiler thermostat is set to
the required setting.
2
Switch on the electricity supply to the boiler.
3
Set the On/Off switch to ON and the heating timer (if
fitted) to ON. Set the burner and pump switches to ON.
A neon in the switch lights when it is in the on position.
The boiler will now light automatically.
For short periods - Set both the burner and pump
switches to OFF.
To restart, simply set both switches to ON.
For long periods: Set both the burner and pump
switches to OFF. If required, the fuel supply valve may
be closed and the water and electricity supplies turned
off at the mains.
Note: The built in frost thermostat will not operate if
the electricity supply to the boiler is switched off.
1
Check that the boiler On/Off, burner and pump
switches are set to ON.
2
Check that the timer (if fitted) is working and is in an 'on'
period.
3
Check that all thermostats are set to the desired
setting and are calling for heat.
4
Check if the burner 'Lock-out' reset button is lit. If it
is, press it to start the burner. If the burner fails to light
and goes to 'Lock-out' again, check that you have
sufficient fuel in the storage tank and that the fuel
supply valve is open.
5
Ensure that a fuse has not blown or that the
electricity supply has not failed.
6
Check to see if the safety thermostat has operated.
If the burner still fails to light after carrying out these
checks then a fault exists. Switch off the electricity
supply to the boiler and contact your Service engineer.
Lighting your boiler (see Fig. A)
1.2
Turning off your boiler (see Fig. A)
1.3
Points to check if burner fails to light
1.4
Boiler controls (see Fig. A)
1.1