Specifications
TEMPERATURE CONTROL 
20 
WATER VOLUME FUNCTION 
The water volume function is designed to warn, by a beeping sound, that a certain volume of water has been 
delivered from the water heater. It does not stop either the flow of or the heating of water. This function 
is particularly useful if a bath is being filled, or measuring the water consumed by the use of a shower. 
The water volume function can only be set by the Kitchen controller. Refer to the notes on the water volume 
function on page 21. 
To operate the water volume alarm: 
1.  Turn on the water volume alarm 
  Press the water volume button. 
The water volume operating light will glow. 
The current set water volume (in litres divided by 10) will 
be displayed and the x10l indicator will also glow. 
E.g.  the  factory  preset  water  volume  of  180 litres  is 
shown as 18 x10l. 
2.  Adjust the water volume setting (if necessary) 
  To  adjust  the  water  volume  setting,  press  the 
up () button  to  increase  the  water  volume  or  the 
down () button to decrease the water volume. 
Each press of the up () button or down () button will 
change the water volume setting by 10 litres. 
Pressing  the  up () button  or  down () button 
continuously will scroll the water volume setting. 
Fifteen  seconds  after  the  water  volume  has  been 
selected,  the  water  volume  operating  light  will  start  to 
flash and the selected water volume is set. 
The  water  volume  operating  light  will  continue  to  flash 
until the alarm sounds. 
A maximum of 500 litres (50 and x10l displayed) and a 
minimum of 10 litres  (1 and x10l displayed) can be set 
with the water volume alarm. 
3.  Set the water temperature 
  Turn on the controller for the room where the hot water 
is to be used. 
  Gain priority (if using the Kitchen controller). 
  Select the temperature setting. 
4.  Open the hot tap 
The in use light will glow on all controllers. 
Measurement  of  the  water  flow  at  the  water  heater  will 
commence  when  a  hot  tap  is  open  and  the  water  volume 
operating light is flashing. 
The alarm will sound  when the set volume of water has 
passed through the water heater. 
wa te r  
vo l ume  
on 
of f  
ch e c k  
h o t   water  
temperatu r e  
b e f o r e   u s e  
18 
C 
pr ior i ty  
in  use  
x10l 
wa te r  
vo l ume  
on 
of f  
ch e c k  
h o t   water  
temperatu r e  
b e f o r e   u s e  
15 
C 
pr ior i ty  
in  use  
x10l 
on 
of f  
ch e c k  
h o t   water  
temperatu r e  
b e f o r e   u s e  
42 
C 
pr ior i ty  
in  use  
42 
C 
pr ior i ty  
in  use 
water  
vo l ume 










