Potthof & Co Potterton Gold HE Range Condensing Combination Boiler 33kw - Manual (Page 38)

38
11.0 Commissioning
© Baxi Heating UK Ltd 2012
11.3 Setting the Timer
NOTE: If the integral timer is not required fit the blanking
plate supplied in the installation kit.
The Electro-Mechanical Timer allows the central heating
system to be set every 15 minutes.
Using the three position switch the timer will allow either
constant operation, timed operation or central heating off.
Move the switch button by sliding to the desired position.
Three position switch (Fig. 71a)
Constant (Top position): The heating will be on
constantly irrespective of the position of the tappets.The
heating will be controlled by the main thermostat on the
appliance and/or any external controls.
Timed (Central position): The heating will operate
according to the position of the tappets and be controlled as
above.
0 Off (Bottom position): No central heating.
Domestic hot water will operate on demand.
To set the time of day
Turn the timer outer bezel clockwise, to align the pointer
with the correct time to the nearest 15 minutes
ensuring that A.M./P.M. is considered. Do not at any time
attempt to turn the bezel anti-clockwise.
To set the timed heating program
Decide which times of the day the central heating is required.
The heating will operate when the white tappets are set to
the outer edge of the bezel.
To ensure the heating stays OFF set the required tappets
inwards towards the centre of the bezel.
Each tappet represents 15 minutes.
For example: If the heating is not required between
10 A.M. and 11 A.M. the four tappets anticlockwise from the
10 A.M. will be set inwards (Fig. 71b).
2
3
4
5
AM
7
8
9
10
IN
0
9
10
11
12
1 2
3
4
5
PM
7
8
9
10
11
12 1 2
3
4
5
AM
7
8
9
10
11
12
GRASSLIN
0
4
Constant
Time Pointer
Timed
Off
Rotate to adjust time
Off Position
On Position
Time Pointer
Fig. 71a
Fig. 71b