Hydrosplit M3 Manuale utente – User manual - v1.6.5_ITA_ENG
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return temperature sensors and the respective terminals. Use PT1000 temperature sensors only, EN1434-
2 MID (2004/22/CE) approved.
FLOW METER CONNECTION
Connect the flow meter for thermal energy metering in the pulse input “flow in” (10,11,50).
The calculation unit is compatible with flowmeters with pulse output OC (open collector) or OA (reed),
with pulse value “liters/pulse” (strictly compliant to the value set on the calculator).
Terminal 50 is reserved for eventual Anti-tampering wire connection.
Warning: in case of fiscal energy metering, it is mandatory to connect flow meters EN1434 approved.
Warning: when using flow meters with Open-Collector (OC) output, it is necessary to follow the correct
connection polarity.
VOLUME METERS C1/C2IN CONNECTION
The inputs C1 IN (51, 52, 53) and C2 IN (54, 55, 56) are dedicated to the flowmeters for hot and cold
sanitary water.
The calculation unit is compatible with flowmeters with pulse output OC (open collector) or OA (reed),
with pulse value “liters/pulse” (strictly compliant to the value set on the calculator).
Terminals 53 and 56 are reserved for eventual Anti-tampering wire connection.
