20170350
52
GB
Appendix - Electrical panel layout
WIRING DIAGRAM KEY
A1
Electrical control box
B
Filter to protect against radio disturbance
B1
RWF50 output power regulator
X1
Burner terminal strip
XA
Starter terminal strip
MV
Fan motor
F1
Three-phase line fuses, fan motor thermal relay
F
Three-phase line fuses
FU
Three-phase line fuses
F2
Single-phase line fuses
F3
Fan motor thermal relay
SM
Servomotor
TA
- Ignition transformer
XTB
Burner earth
IN
Burner manual stop switch
TL
Limit thermostat/pressure switch
TS
Safety thermostat/pressure switch
TR
Adjustment thermostat/pressure switch
H
Lockout signalling
H1
Lockout signalling
Q1
Three-phase disconnecting switch
Q3
Three-phase disconnecting switch
Q2
Single-phase disconnecting switch
CN
Servomotor connector
VF
Working valve
VR
Adjustment valve
VR1
Return valve
VS
Safety valve
XVR1 Return
valve
connector
PO
Oil pressure switch
XPO
Oil pressure switch connector
UV
Flame sensor
XPE
Control box earth
XRWF
RWF50 terminal board
KL1
Line contactor
KS1
Star contactor
KT1
Triangle contactor
KST1
Timer
BA
Current input DC 4...20mA
BA1
Current input DC 4...20mA
for remote setpoint change
BP
Pressure probe
BP1
Pressure probe
BR
Remote setpoint potentiometer
BT1
Thermocouple probe
BT2
Probe Pt100, 2 wires
BT3
Probe Pt100, 3 wires
BT4
Probe Pt100, 3 wires
BTEXT
External probe for climatic compensation of the
setpoint
BV
Voltage input DC 0...10V
BV1
Voltage input DC 0...10V for remote setpoint change
Содержание P 300 P/G
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