6.1
It should be noted that under certain conditions,
Le
is displayed. This is part of the control
sequence and the appliance should reset automatically. Ensure that the filter and the ducts are
clear.
6.2
You can control the heat to each room by opening and closing the warm air outlets, but never
close more than half of the outlets at any one time or the performance of the heating system will
be affected. Warm air outlets in the room where the OpenTherm controller is sited should always
be open to ensure that the heating system is controlled properly.
6.3
During the average winter weather, warm air outlets in rooms not having an OpenTherm controller
should be opened only as much as is necessary to bring the room to a comfortable level.
6.4
SUMMER AIR CIRCULATION
During hot weather, unheated air can be circulated around the dwelling, (using the air circulation
fan), pressing the button on the unit marked Summer Air Circulator.
IMPORTANT: If at any time the heater fails to turn off when there is no demand
for heat, switch off the gas and electrical supply to the heater and contact your
local service engineer.
7.
TIME CONTROL OPERATION
In addition to continuous operation, the Time Control will provide 24 hour timed operation of the
air heater in 15 minutes increments (1 tappet).
7.1
SETTING THE TIME
Rotate the dial clockwise, by hand, until the indicator
arrow is pointing to the current time.
NOTE:
The time is set in 24 hour format.
7.2
SETTING THE CENTRAL HEATING ON
AND OFF TIMES
Select the on times by pushing the black tappets to the
outside.
Select the off times by pushing the black tappets to the
inside
7.3
OVERRIDING THE CLOCK
The clock has a manual on off switch which operates
as follows
I
Heating on continuously
Heating on timed
0
Heating off
8.
AIR FILTER
8.1
The air filter is located where the return air ducting connects to the air heater.
8.2
IMPORTANT:
during periods where the heater is being used constantly, the air filter should be
checked at regular intervals.
8.3
TO CLEAN THE FILTER
- cleaning the filter will depend on the filter type. It will be either:
a) Passive Filter: withdraw the filter from the heater, clean with a soft brush or vacuum
cleaner and refit.
b) Electronic Filter: withdraw the filter as above and remove surface dust with a soft
brush. If the filter medium is soiled, replace as directed in the filter kit instructions.
DO NOT ATTEMPT TO CLEAN OR WASH THE FILTER MEDIUM!
NOTE: if you allow the filter to become clogged, the heater efficiency will be
greatly reduced.
8.4
IN NEW DWELLINGS: clean the filter once a week for the first month or two to clear builder’s
dust.
5
Sales/Spares & Replacement Help Line 01604 762881
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Indicator Arrow
Black Tappets
FIGURE 4. TIME CONTROL
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