Zanotti un0 010, Workshop Manual

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146
Electronics and wiring
5.2 Electronic Boards
Wiring diagram symbol-key
LABEL DESCRIPTION LABEL DESCRIPTION
11
Glow plug and capacity cpin
KFR
Condenser fan managing relay
46 Starter positive contact KP Capacity Control Relay
ALT Alternator KPR1 Glow plug and starting capacity control relay
BA -2-3 Cold room temperature probe KR Stand-by relay
BE
Environmental temperature probe
KSF
Phase sequencer
BH Coolant water probe KYAV Speed solenoid relay
BL Evaporator air delivery probe KYS Defrost solenoid valve relay
E1 Glow plugs M1 Electric motor
F1E
CPU board
M5-6
Condenser fan
F20 CPU board protection fuse M8-9-10 Evaporator fan
F5-6 Condenser fan fuse J19 Power board digital input
F8-9…13 Evaporator fan fuses K1 Electric motor contactor
FA2 Condenser fans relay fuse K2 Electric motor phase reversing contactor
FA3 Fuel pump fuse K5-6 Condenser fan relay
FA4 Fuel cut off solenoid valve K8-9-10 Evaporator fan relay
FA5 Defrost solenoid valve fuse K94 Starting relay
FA6 Engine speed solenoid fuse KB Battery relay
FA7 Starting motor relay fuse KC1-2-3 Evaporator Heating Relay
FA8 Auxiliary circuit fuse KF1-2-3 Evaporator Cooling relay
FA11
Glow plug fuse
KFP
Fuel pump relay
FB Battery fuse KFR Condenser fan managing relay
FGS Scroll protection klixon thermostat KP Capacity Control Relay
FM1 Thermal overload relay KPR1 Glow plug and starting capacity control relay
FMIS
Circuit breaker
KR
Stand-by relay
FTQ Coolant water thermostat KSF Phase sequencer
FTS1-2 Defrost-end thermostat switch KYAV Speed solenoid relay
HI Acoustic alarm KYS Defrost solenoid valve relay
J1-2
Cab command connector
M1
Electric motor
J3-4-5 Auxiliary evaporator board connector M5-6 Condenser fan
J6 CPU board power supply connector M8-9-10 Evaporator fan
J7 Temperature probes connector MP Hinged cover micro-switch
J8
Digital input connector
MPC
(Optional) Cold-room Door Micro-switch
J9 Digital output connector MTA Starter
J10 Negative ground output connector P1MX 2nd Condenser fan pressure switch
J11 Condenser fans connector PMI Low pressure switch
J12 Power board output connector PMX High pressure switch
J13-14…18 Evaporator fan connectors PN Fuel pump
J19 Power board digital input PO Engine oil pressure switch
K1 Electric motor contactor S2 Remote ON/OFF
K2 Electric motor phase reversing contactor SA Differential air switch
K5-6 Condenser fan relay TAL 12V Transformer
K8-9-10 Evaporator fan relay Y3V 3 way solenoid valve
K94
Starting relay
YAV
Engine speed solenoid
KB Battery relay YC1-2-3 Evaporator Heating Solenoid
KC1-2-3 Evaporator Heating Relay YF1-2-3 Evaporator Cooling Solenoid
KF1-2-3 Evaporator Cooling relay YK Starting capacity control valve
KFP
Fuel pump relay
YP
Capacity control valve