2.2 COMPONENTS OF THE BOILER
4
a. Main heat exchanger
b. Heating elements
c. 3-way valve actuator motor
d. DHW temperature NTC sensor
e. Flow manifold
f. Water pressure switch
g. Pressure gauge
h. Plate heat exchanger
i. Electronic flow sensor
j. Filling valve
k. Circulation pump
l. Return manifold
m. 3 bar safety valve
n. Expansion vessel
o. Relay board
p. Cooling fan for relay board
q. CH temperature NTC sensor
r. Short-circuit thermostat
s. Limit thermostat
t. Circuit braker
u. Cable gland fixing plate
v. Cable gland
w.Earth connection
x. Rail terminal block
y. Float level sensor
z. Manual air vent
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2.2.1 6-40 kW Models