29
Fig. no. 22a) Connection diagram – Mixing heating circuit
Color of conduit:
BK Black
BN Brown
BU Blue
GNYE Green-yellow
GREY Grey
WHITE White
YELOW Yellow
RED
Red
SERVICE
BOX
SERVICE
BOX
SERVICE
BOX
SAFETY
THERMOSTAT
SAFETY
THERMOSTAT
FUEL
FEEDER
BOILER
PRIMARY
CIRCUIT
PUMP
VENTILATOR
SUPPLY
VENTILATOR
SPEED
REGULATION
ROOM DEVICE
INL
ET
INLET
INL
ET
MIXING
VALVE
HEATING
CIRCUIT
PUMP