baltur TBML 900 ME Instruction Manual For Installation, Use And Maintenance page 73

A1 CONTROL BOX
A8 DUAL FUEL EQUIPMENT
B1 Flame sensor
F1 THERMAL RELAY
F2 PUMP THERMAL RELAY
FU1÷4 FUSES
H0 EXTERNAL LOCK INDICATOR LIGHT/ AUXILIARY HEATING
ELEMENT OPERATION LAMP
H1 OPERATION INDICATOR LIGHT
H10 "OIL WARNING LIGHT"
H11 "GAS WARNING LIGHT"
H2 LOCK-OUT WARNING LIGHT
H7 FAN MOTOR THERMAL SWITCH RELAY LOCK-OUT LAMP
H8 PUMP MOTOR THERMAL BLOCK LAMP
K2 "PUMP MOTOR CONTACTOR"
KL LINE CONTACTOR
KD "TRIANGLE CONTACTOR"
KY STAR CONTACTOR
KT TIMER
MP PUMP MOTOR
MV FAN MOTOR
N1 "ELECTRONIC REGULATOR
P M "MAXIMUM PRESSURE SWITCH"
PA AIR PRESSURE SWITCH
Pm MINIMUM PRESSURE SWITCH
PS SAFETY PRESSURE SWITCH
S1 START/STOP SWITCH
S2 RELEASE BUTTON
S6 FUEL SWITCH
S24 SWITCH ON/OFF
SG MAIN SWITCH
TA IGNITION TRANSFORMER
TC BOILER THERMOSTAT
TS SAFETY THERMOSTAT
X1 BURNER TERMINAL BOARD
X16 SERVICE PORT
Y8 GAS SERVOMOTOR
Y10 AIR SERVOMOTOR
YP MAIN SOLENOID VALVE
YPM MAIN DELIVERY SOLENOID VALVE
YPR MAIN RETURN SOLENOID VALVE
YS SAFETY SOLENOID VALVE
YSM DELIVERY SAFETY SOLENOID VALVE
YSR RETURN SAFETY SOLENOID VALVE
GNYE GREEN / YELLOW
BU BLUE
BN BROWN
BK BLACK
BK* BLACK CONNECTOR WITH OVERPRINT
SPRAY NOZZLE UNIT
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GAS TRAIN