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Sensors:
-temperature values displayed on maintenance remote control
-resistance value of temperature sensors – see tables § 5.5
Note: for input “E2P”, measured value is a pressure signal
(coming from pressure sensor 0-50b 4/20mA) which is
converted by A2 board in an equivalent temperature (displayed on maintenance remote control)
Pressure sensor power supply 24Vdc nominal:
on connector “E2P” (with no connection) – terminals 1/3: 20 <U< 26Vdc
Input:
-flow switch “FS”: status according green LED “W”
-with flow switch disconnected: terminals 1/3: 10 <U< 16Vdc
Outputs:
-forcing water pump operation: green LED PP lighted (blinking)
+ 230Vac on connector “PP” (pump ctrl output)
Configuration:
-A2 board code (indicated on identification label): code 2220127 + board revision
-software version: see parameter P85 with system remote control box
-position of jumpers & switches
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