Specifications
40 
INSTALLATION – CONTROLLERS 
CONTROLLERS 
The Aquamax CG20 series of continuous flow water heaters can be installed with Aquamax controllers to 
enable the user to control the temperature of the delivered water from the outlet of the water heater. 
There are three types of controller. They are the Kitchen controller (PN AQ3264101, including cable), 
Bathroom1  controller  (PN AQ3264102,  including cable)  and  the  Bathroom2  controller  (PN AQ3264103, 
including cable). 
The  controllers are  identified  by  a  „K‟  (Kitchen  controller),  „B1‟  (Bathroom1  controller)  or  „B2‟  (Bathroom2 
controller) located on the front bottom left hand corner of the controller. 
The controllers are designed to be hard wired into the water heater using either the Kitchen controller cable 
(PN 299856) or the Bathroom controller cable (PN 299857). 
Notes: 
  One, two or three controllers can be installed. Only one of each type of controller can be connected to 
the  water  heater.  Therefore,  a  maximum  of  three  controllers  only  can  be  connected  to  each  water 
heater. 
  A Bathroom2 controller can only be installed if a Bathroom1 controller is installed. 
  An additional Kitchen controller cable or Bathroom controller cable can be used if an extension of the 
cable length is required. 
It will be necessary to cut an opposite end off both cables to be installed in order to wire them together. 
Alternatively, the cables may be extended using two-core flex with a minimum cross-sectional area of 
0.5 mm
2
. 
  Other manufacturers‟ controllers are not suitable to and cannot be installed with this water heater. 
  Warning: Temperature controllers must not be  fitted to  this water heater (CG20-60  model) if  it is 
installed as an in-series gas booster with a solar water heater because water at a temperature much higher 
than the controller setting can be delivered. If a solar water heater is installed to an existing water heater 
installation, then all controllers must be disconnected and removed. 
Location – The controllers must be installed in dry, shaded and clean locations. 
Do not install the controllers: 
  Near a heat source, such as a cook top, stove or oven. Heat, steam and smoke will interfere with the 
electronic components of the controllers. 
  In direct sunlight. 
  In or near a wet area. The controllers are not waterproof. Water may damage the controllers. 
  Outdoors. The controllers are not weatherproof. 










