Control Features; Control Logic - LMF Clima LC2 Mode D'emploi

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Automatic / manual fan speed selection
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3 point cooling / changeover floating valve management
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3 point heating floating valve management
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Cold water / change over pump management
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Hot water pump management
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Heat exchanger defrost management
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Water coil antifreeze management
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On-Off electric heater management
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Filter pressure switch management
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Fan management by CO
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Fan management by 1 or 2 pressure sensors
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By-pass damper management
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Mixing box management
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Mixing box management with CO
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Boost function
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Adiabatic cooling management
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Alarm management and diagnostic
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Post ventilation
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Clock program management
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Remote On-Off
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Digital input for PIR occupant sensor
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Digital input for fire alarm
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Digital input humidistat (only available on the FL series)
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Heating / cooling selection by digital input
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Hot water minimum thermostat
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Remote display with internal temperature sensor
BMS Modbus protocol RS485
In the following diagrams is explained the summer-winter control logic
Tsp-Treg
Ventilation
Cooling modulation
= 2°C
Cooling
Cooling logic
Treg = regulation probe temperature (on supply air or room sensor on display)
Tsp = set point temperature
Te = external probe temperature
firmware 1.03
Electronic Control "LC2" User Manual

1 Control Features

sensor
2
sensor
2

2 Control logic

Ventilation
By-pass
= 2°C
Cooling modulation
Tsp-Te
+ By-pass
By-pass
+
Cooling
Figura A
By-pass
+
Heating
Heating modulation
+ By-pass
By-pass
= 2°C
Ventilation
Rev.11
Tsp-Treg
Heating
Heating modulation
= 2°C
Ventilation
Heating logic
EN
Tsp-Te
EN 3/ 15