Baxi Potterton WH46 User Manual

a)    Automatic operation.  Operation of the boiler is controlled by the timed program as described in point 

3-5.1 “Daily timed program for operation of the central heating system”;

b)    Manual operation at the maximum temperature set.  The boiler comes into operation regardless of 

the timed program set.  The operating temperature is that set using the 

 key (point 3-3: “Setting 

the maximum central heating temperature”);

c)     Manual operation at minimum temperature.  The operating temperature is that set in point 3-6: 

“setting the minimum central heating temperature”. 

 

The manual transition from positions a) and b) to position c) involves shut-down of the burner and 
disconnection of the pump after the post-circulation delay interval (the factory setting for this parameter 
is 3 minutes).

 standby.  The boiler does not work in central heating mode, although the frost protection function is 

still enabled.

 

(1) Hot water on/off key: Press this key to activate or inhibit this function, which is identified by the 
appearance on the display of two black dashes under the 

 symbol.

 

(4) Reset key.  In case of a fault, referred to in point 3-7 “Faults and resetting the boiler”, the boiler 
can be restarted by pressing this key for at least two seconds.

 

If this key is pressed with no fault present, the display will show the message “E153”, and the same 
key has to be pressed again (for at least two seconds) to restart the boiler.

 

 

(9) Data key.  This key can be pressed repeatedly to display the following information:

 

- Temperature (°C) of the hot water (

);

 

- outdoor temperature (°C) (

); only provided with the outdoor temperature sensor probe 

connected.

 

Press either of the 

 

 keys to return to the main menu.

020503_0800

   

(2) This key can be pressed to set the central heating water output temperature as described in point 
3-3.

  

(3) This key can be pressed to set the hot water temperature as described in point 3-4.

  

 The 

 key can be pressed to activate four boiler central heating operating modes; these modes are 

identified by a black cursor line underneath the relative symbol on the display, and are as follows: