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ECO-PANEL 7/21 AND 12/31 ELECTRICAL DIAGRAM
ECO-PANEL EXTERNAL AIR COMPENSATION WITH FIRST AND SECOND STAGE
BOILER CONTROL PANEL
BURNER
AA : ON-OFF SWITCH
LT : SAFETY LIMIT THERMOSTAT
PL : PUMP LAMP (1ST MIXTURE ZONE)
AL : LIMIT FAULT LAMP
KT1 : 1ST STAGE BOILER THERMOSTAT
16-17-18 : 2ND STAGE BOILER THERMOSTAT
G : SENSOR JOINT TERMINALS
N: NEUTRAL
L: PHASE
AF : OUTDOOR AIR SENSOR
WF/KF : BOILER SENSOR
SF : BOILER SENSOR
VF1 : MIXTURE CIRCUIT SENSOR (1ST ZONE)
VF2 : MIXTURE CIRCUIT SENSOR (2ND ZONE)
P2 : 2ND ZONE MIXTURE CIRCUIT PUMP
13-14 : 2ND ZONE 3-WAY VALVE ON-OFF PHASES
P1 : 1ST ZONE MIXTURE CIRCUIT PUMP
7-8 : 1ST ZONE 3-WAY VALVE ON-OFF PHASES
BP : BOILER PUMP
DP : DIRECT CIRCUIT PUMP