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20 SYSHRW
12.2.2. DESCRIPTION OF WIRING DIAGRAM REFERENCES
FFG
: Fuses according to chart 1 (not supplied)
Q1
: Main switch (supplied as an option)
KA1
: Phase cut-out and sequence control module (three phase models only)
X
: Connection terminal block (three phase models only)
* according to equipment level
12.2.2.1. COOLING
M1
: Refrigeration compressor.
K1
: M1 compressor power contactor. (three phase models only)
LP
: Automatic reset Low Pressure pressostat.
HP
: Automatic reset High Pressure pressostat.
C1
: M1 compressor condenser (single phase models).
RV1
: 4 way valve for cycle inversion.
SW
: condensed water level detector
12.2.2.2. VENTILATION
HP2
: Automatic reset High Pressure pressostat.
T
: timers (regulation 3 minutes)
MV
: Treated air fan motor.
FV
: MV motor internal safety device.
CV
: MV motor condenser.
K3/K4/K5:
MV motor relay*.
* depending on version or equipment level
12.2.2.3. WATER CIRCUIT
Y1
: Water circuit valve (not supplied-available in option).
FDP
: Water circuit inlet / outlet differential pressostat
KA3
: Relay of safety
12.2.2.4. CONTROL AND REGULATION
RCL
: Local control module.
ICT
: Anti-freezing protection sensors.
RT
: Intake air temperature sensor.
LWT
: Outlet water temperature sensor.
SM
: Remote ON/OFF switch, 100 m maximum (Not supplied -Please consult us for longer distances).
CLK
: CLOCK input remote ON/OFF
T1
: Timers
KA4
: Relay
12.2.2.5. REMOTE MANAGEMENT AND PROGRAMMING MODULE KIT (<100M)
µBMS
: Supervision module
12.2.2.6. FAULT REPORTING OPTION
KA2
: Remote fault reporting relay (3 A max / 230 V)