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Key to layouts
A
- Control box
B1
- Internal output power regulator RWF
B2
- External output power regulator RWF
BA
- DC input 0...20 mA, 4...20 mA
BA1
- DC input 0...20 mA, 4...20 mA for modifying the
remote setpoint
BP
- Pressure probe
BP1
- Pressure probe
BR
- Remote setpoint voltage divider
BT1
- Thermocouple probe
BT2
- Probe Pt100 with 2 wires
BT3
- Probe Pt100 with 3 wires
BT4
- Probe Pt100 with 3 wires
BTEXT - External probe for the climatic compensation of the
setpoint
BV
- DC voltage input 0...1 V, 0...10 V
BV1
- DC voltage input 0...1 V, 0...10 V for modifying the
remote setpoint
F1
- Fan motor thermal cut-out
F2
- Pump motor thermal cut-out
F3
- Auxiliary fuse
G
- Signal converter for UV cell
H1
- Signal light for burner on
H2
- Signal light for motor trip
H3
- Signal light for burner lock-out
KO
- Light oil circuit relay
KO1
- Light oil circuit relay
KG
- Gas circuit relay
KL
- Direct startup contactor
KL1
- Star-powered/delta-powered line contactor
KMP
- Pump motor contactor
KT1
- Star-powered/delta-powered starter /delta contactor
KS1
- Star-powered/delta-powered starter /star-powered
contactor
KSM
- Relay
KST1
- Star-powered/delta -powered starter timer
K1
- Fan on voltage free contact relay
K2
- Motor lock-out voltage free contact relay
K3
- Burner lock-out voltage free contact relay
K4
- Light oil operation voltage free contact relay
K5
- Gas operation voltage free contact relay
K6
- Burner on voltage free contact relay
MP
- Pump motor
MV
- Fan motor
PA
- Air pressure switch
PE
- Burner ground
PGMin - Minimum gas pressure switch
PGM
- Maximum gas pressure switch
PO
- Oil pressure switch
RS
- Remote lock-out reset button
S1
- Emergency stop push-button
S2
- Switch for following operations:
off-automatic-manual
S3
- Lock-out reset button
S4
- Button for: power increase/reduction
S5
- Fuel selector
SH3
- Burner reset button and lockout warning
SM
- Servomotor
TA
- Ignition transformer
TL
- Load limit remote control system
TR
- High-low mode load remote control system
TS
- Safety control device system
Y
- Gas adjustment valve + gas safety valve
YVPS
- Gas leak detection control device
X1
- Main supply terminal strip
X2
- RWF and UV cell terminal strip
20036762
Appendix - Electrical panel layout
X4
XAUX
XM
XPA
XPGM
XPGM1 - Maximum gas pressure switch connector
XS
XSM
UV
V1
V2
VS
56
GB
- Light oil assembly terminal block
- Auxiliary terminal strip
- Light oil assembly connector
- Air pressure switch connection plug
- Maximum gas pressure switch connection plug
- Flame detectors connector
- Air and gas servomotors connector
- UV cell
- Light oil 1st stage valve
- Light oil 2nd stage valve
- Light oil safety valve
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