Atag XL75W - External Controls

49
Installation
Electrical connection
([WHUQDOFRQWUROV
BMS Feedback
For giving feedback to the BMS system
this output gives a 0-10 Volt signal as
indication of Load.
Pump modulation
This output can be set as a controller
for several pump types. For types, see
scheme on pages 45-47.
'+:ÀRZVHQVLQJ
)RUVHQVLQJWKHDPRXQWRIZDWHUÀRZ
2UVHWDVDÀRZVZLWFK
2Q2ႇKHDWUHTXHVW
,QSXWFDQEHXVHGIRURQRႇFRQWUROXS
to 3 zones.
0-10 Volt input (Padin 1-2-3)
Load and temp control via an 0-10 Volt
dc input. When 0-10 Volt is selected the
system can only be controlled with this
system.
HCs + DHW changeover
External controller selects if the system
can only be active for DHW or for CH
and DHW
Heat Generation Lock
As long as the input is Open all heat
requests are blocked.
Padin 4
Take in account PADIN 4 is 5 Volt max
where 1, 2 & 3 are 24 Volt.
PWM 0-10V GND
MO1 (0-10V output)
Output
24VSignalGND
PFDIN 1
Input
24VSignalGND Signal 24VGND 24V 5VSignalGND GND Signal
PADIN 3 PADIN 4PADIN 1 PADIN 2
InputInput InputInput
GNDPWM 0-10V
MO2 (0-10V output)
Output
Menu display parameter
24.6.3
26..32.6.3
Function Function
value
None 0
'+:ÀRZPHWHU 1
'+:ÀRZVZLWFK 2