Friulinox Cube Series - Specific Electronic Board Connections and Functions

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FRIULINOX ALI GROUPS.R.L. A SOCIO UNICO 12
Via Treviso,4 - 33083 Taiedo di Chions (PN) -Italy
Service Manual
4.4. Specific electronic board connections
M1
Compressor
The operation of the M1 compressor and of the “Q2” liquid solenoid valve is
managed by the “K1” relay.
The solenoid valve is installed - on request - on all models set-up for the
remote unit.
Compressor ON delay from first switch-on parameter C0.
Compressor minimum time OFF-ON parameter C1.
Compressor minimum time OFF parameter C2.
Compressor minimum time ON parameter C3.
∆T OFF of the parameter r0 compressor.
Compressor OFF time with faulty air probe(Probe 1 Faulty) parameter C4.
Compressor ON time with faulty air probe(Probe 1 Faulty) parameter C5.
The “M2” condenser fan is connected in parallel to the compressor.
Q2
Solenoid valve
of the
liquid
M3
Evaporator fan
The M3, E3 and E7 operation is managed by the K2 relay.
The E3 heater, connected in parallel to the M3 evaporator fan, is installed on
all models set-up for the remote unit.
The E7 heater, connected in parallel to the M3 evaporator fan, is installed on
the models with glass door.
Fan (M3) management during normal operation, parameter F0, (default 8 =
fan works according to the humidity set, set on display).
Fan OFF with upper evaporator temperature at parameter F1.
Fan management during defrosting and dripping, parameter F2 (0 = fan OFF;
1 = fan ON).
Fan maximum OFF time, parameter F3.
F1 parameter differential, parameter F8.
E3
Condensate
evaporation tray
heater
E7
Glass anti-
condensation
heater
E4
Frames heater
The E4 operation is managed by the K3 relay, parameter u1, default set 4.
The E4 heater is installed on all TN – BT – TNV – BTV models.
Cell temperature above which the frames heater is at OFF, parameter u5.
Operation time during maximum Energy Saving level, parameter r16.
Operation time during average Energy Saving level, parameter r17.
E1
Glass door light/cell
light
It activates when the door is opened, parameter i0=5.
The light can be manually activated from the menu  light on.
NTC probe
thermostat
Air temperature
probe
NTC type probe temperature range -40°C to +105°C.
Positioned in the evaporator intake duct.
A fault of the probe or of the analogue input of the board determines the
Probe 1 Faulty alarm.
Probe calibration parameter CA1.
Type of probe, parameter P0 (1=NTC).
The decimal point of the temperature is managed with parameter P1.
°C or °F setting parameter P2.
Minimum work setpoint, parameter r1.
Maximum work setpoint, parameter r2.
Enable work setpoint change lock, parameter r3=1.