Functional Description Of The Appliance - State Water Heaters SCE 80-115 Installation, User And Service Manual

2
2.2 Functional
description of the
appliance
Legend
a flue gas discharge
b draught diverter
c anodes
d flue tubes
e flue baffles
f PU-isolation
g tank
h cleaning opening
i drain valve
j combustion chamber
k radiation shield/condensation
tray
l gas control
m flue gas thermostat sensor
n flue gas thermostat
o hot water outlet
p safety thermostat sensor
q high-limit thermostat sensor
r control panel
s control thermostat
t burner control
u high-limit thermostat
v frost thermostat
w safety thermostat
x control thermostat sensor
y frost thermostat sensor
z cold water inlet
A glow igniter
B ionisation rod
C bar burner/ burner tray
14
Functioning of the appliance
Figure 2.1 shows a cut-away view of the appliance.
a
b
c
d
e
f
g
h
i
j
k
l
Figure 2.1 Cross-section of the appliance
In this appliance, the cold water enters the bottom of the tank via the cold water
inlet z. The heat of combustion is transferred to the water through the
combustion chamber j and flue tubes d. The heated tap water leaves the tank
via the hot water outlet o. Once the appliance is completely filled with water, it
remains constantly under water supply pressure. As hot water from the
appliance is consumed, it is continuously replenished with cold water.
gis
m
n
o
p
q
r
s
t
u
v
w
x
y
z
A
B
C
IMD-0143
Instruction Manual SCE