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Shutdown
Description of the LED displays
Constant yellow:
No fault, time and date not available:
▶ Set the time and date on the appliance.
-or-
▶ Key with touch-sensitive indicator: Press touch-
sensitive indicator on Key to start pairing.
Constant green:
No fault, normal operating condition.
LED Off:
No fault, power-saving mode or appliance without power.
Table 8 LED status
5.1
Setting the time program
Time program
The same method for setting the time program for heating is used to set
the time program for hot water.
▶ Press the
key.
▶ Select and confirm the Heat. time prog. or DHW time prog.menu.
▶ Select and confirm the Time program menu.
The menu items Mon - Fri, Sat - Sun, Mon ... Sun are displayed.
Possible items to change:
• Mon - Fri to change switching times for all weekdays together
• Mon ... Sun to change switching times for individual days
• Sat - Sun to change switching times for weekends
▶ Select and confirm item you want to change.
▶ Select and confirm time entry you want to change.
▶ To change the time, press the or key.
▶ Press the ok key.
The new time is saved. Next time entry is selected.
Add one additional switching time block by selecting +. Delete an
existing switching time block by selecting
6
Shutdown
6.1
Setting frost protection
NOTICE
Risk of damage to the system from frost!
The heating system can freeze up after a prolonged period (e.g. during a
power failure, switching off the power supply, faulty fuel supply, boiler
fault etc.).
▶ Ensure that the heating system is in constant use (particularly when
there is a risk of frost).
If you are leaving your property unoccupied during cold weather, please
leave your external programmer on constant and your room thermostat
set to 12 °C.
7
Thermal disinfection (DHW cylinder only)
To prevent hot water from becoming contaminated by bacteria such as
legionella, we recommend thermal disinfection after long downtimes.
You should have a qualified engineer carry out thermal disinfection.
10
Example
.
8
Clearances and ventilation information
8.1
Appliance clearances
Your installer will have provided adequate space around the appliance
for operation, safety and servicing/maintenance access.
• The following detail the necessary clearance around the appliance for
service and maintenance.
CAUTION
Risk of damage to appliance or property
The appliance will overheat if the clearance space around the appliance
is restricted by objects.
▶ Do not restrict this space with the addition of cupboards, shelves etc.
next to or around the appliance.
▶ Do not store any combustible materials on or next to the appliance,
such as clothes, towels, paper or plastic bags.
Fig. 7
Appliance minimum clearances
Minimum clearances
Description
X
Appliance width
Y
Appliance height
Z
Appliance depth
Maintenance
1
Overall clearance height
2
Overall clearance depth
Clear standing space in front of
3
appliance
4
Overall clearance width
5
Above the appliance
6
Either side of appliance
7
Below the appliance
8
Compartment depth
9
Appliance to removable door
10
Below the appliance to the floor
1) 724mm to middle of top panel.
710mm side panel height.
Bottom panel is removable and not part of minimum clearance height
requirements.
2) Height for either 60/100 flue or 80/125 flue.
3) Front clearance can be reduced by 150mm, refer to the advice given in Reduced
front maintenance minimum clearances.
Table 9 Appliance minimum clearances
Condens 4700iW – 6721864485 (2023/04)
Dimensions (mm)
400
1)
724
310
2)
1,080/1,120
3)
760/910
3)
450/600
410
2)
170/210
5
186
330
20
400
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Troubleshooting
