13
Recommended Settings
The controller has settings pre-installed that will provide adequate hot water and heating, but they can be amended using
the instructions in the first two sections. The temperatures that should be used are as follows
Lower flow temperatures lead to greater efficiencies.
Radiators
Please note that heat pumps provide lower flow temperatures to radiators than a conventional gas boiler. Rather the
radiators turning on/off locally as with a gas boiler, heat pumps provide a more consistent lower flow temperature which
allows for more efficiency and greater comfort.
Hot Water Set-up
The recommended temperatures (as stated above) need to be programmed into the controller
C
O
N
T
R
O
L
L
E
R
S
E
T
-
U
P
What is on the screen
Flashing Temp. represents
Keypad selection
Notes
1. Normal mode
Hold down
H
for 3 seconds
This activates the controller, the display will flash
with the words ‘loading’
2. Water Temp Heating
Press
E
This mode is not necessary and should be skipped
3. Water Temp Heating Eco No.1
Press
E
This mode is not necessary and should be skipped
4. Water Temp Heating Eco No.2
Press
E
This mode is not necessary and should be skipped
5. Water Temp Hot Water
Water Temp Hot Water
Press
D
Move up or down to desired temperature
6. Water Temp Hot Water
Water Temp Hot Water
Press
A
7. Water Temp Hot Water
Water Temp Hot Water
Hold down
H
This will end the parameters that need to be set.
Pressing button I (ON/OFF) will also end the set-up.
Once pressed it will memorise these settings. The
screen will flash ‘settings’ for several seconds.
PAR-W21MAA recommended flow temperatures
Factory Settings
Recommended
Hot Water
50
°
C
58
°
C
Eco Heating
Low Ambient Temperature
Under-floor
-10°C ~ 38°C
-2°C ~ 40°C
Radiator
-2°C ~ 45°C
High Ambient Temperature
Under-floor
17°C ~ 25°C
15°C ~ 30°C
Radiator
15°C ~ 30°C
Throughout this guide the buttons on the controller are referenced by letters and displays by numbers ; this key can be found on page
10
