Zehnder Rittling ComfoAir 550, Installer Manual, Page: 81 / 100

EN - 12
Menu P4

Reading the temperatures
Temperature values
Submenu Description Minimum Maximum General
Reset
P41 Comfort temperature 12
o
C 28
o
C 20
o
C
P45 Current value of T1
(= outside air temperature) - - Current
o
C
P46 Current value of T2
(= supply air temperature) - - Current
o
C
P47 Current value of T3
(= return air temperature) - - Current
o
C
P48 Current value of T4
(= exhaust air temperature) - - Current
o
C
Menu P5

Setting additional programmes
Additional programme values
Submenu Description Minimum Maximum General
Reset
P50 Activation of the open fi re programme. 0 (= No) 1 (= Yes) 0
P51 Confi rming the presence of
a Preheater element 0 (= No) 1 (= Yes) 0
Only change if a preheater element is installed afterwards or an general reset is given.
P52 Setting the Preheater programme.
• 0; Guaranteed protection.
•
1; High protection.
• 2; Nominal protection.
• 3; Economy.
0 3 2
In
GUARANTEED PROTECTION MODE
the Preheater element is switched on soonest; this level offers the best
guarantee of balanced ventilation. Vice versa, in
ECONOMY MODE
the Preheater element switches on at the
last possible moment; balanced ventilation is not guaranteed in this mode.
When commissioning the ComfoAir, the Preheater programme can usually be left at level 2:
NOMINAL MODE
(factory setting). In areas with frequent cold spells in winter (frequent periods of -10°C or lower), level 1
should be selected:
HIGH PROTECTION
or even level 0:
GUARANTEED PROTECTION
.
P54 Confi rming the presence of a bypass. 0 (= No) 1 (= Yes) 1
The standard ComfoAir confi guration includes a bypass. Therefore, leave the value at ‘1’.
P56 Setting the required air volume in the house.
• nL: ”normal air volume”.
• HL: "high air volume". nL HL HL
Setting the air volume is the starting point for programming the air specifi cations and setting the fans.
P57 Setting the ComfoAir type.
• Li = ”Left-hand version”.
• Re = ”Right-hand version”. Li Re Li
With delivery the ComfoAir is correctly pre-programmed at the factory.
After an general reset the pre-programming is lost and the setting must be reset.
The right setting is mentioned on the identifi cation plate on top of the ComfoAir.
P58 Enter controller priorities.
• 0; The highest air setting is leading INCLUDING the
signals from the analogue inputs
• 1; The highest air setting is leading EXCLUDING the
signals from the analogue inputs
0 1 0