OTHER FEATURES
Hot combustion gases are diverted at the end of
the flame pipe and are then forced through the
indirect heating surfaces of the heat exchanger.
The heat exchanger transfers the heat to the
coolant water passing through the heat
exchanger.
The heater is thermostatically controlled and
operates intermittently (i.e., the switched-on time
of the burner varies depending on the heat
requirement). The water temperature is
controlled by the built-in water thermostat.
The water circulation pump remains in operation
as long as the heater is operating; even during
the regulated intervals and during the delayed
cut-out of the switched
OFF
heater. The pump
can also be operated independently of the heater
by means of an appropriate circuit. The heater
can be switched
ON
at any time (i.e., during the
delayed cut-out period). Ignition takes place
after the delayed cut-out time expires.
S
WITCHING
T
HE
H
EATER
O
FF
The fuel supply is interrupted when the heater is
switched
OFF
. This causes the flame to go out
and a delayed cut-out of 2.5 minutes begins.
The circulating combustion air flushes the
remaining combustion gases out of the chamber
and cools off the heated parts on the exhaust
side of the heat exchanger. The water
circulation pump continues to transfer the latent
heat present in the heat exchanger, thus
preventing hot spots. Once the delayed cut-out
time expires, both the combustion air blower and
the water circulation pump switch
OFF
automatically. A cut-out will automatically take
place in case of heater failure. Refer to
"Technical Information" chapter 8 for more
information.
C
OOLANT
H
EATER
T
IMER
Note :
Heater timer control pad may differ
from the one described. Refer to your
manufacturer's instruction booklet for detailed
operating instructions.
To Set The Clock
If the time display is wrong or if it flashes 8:88,
hold
and press either
(backwards) or
(forwards). The longer you hold the button down,
the quicker the display changes. The last few
minutes are set accurately by quick pushes.
Adjust to get exact time. The display fades after
20 seconds.
Present Time Display
Press
at any time. Present time appears on
the screen.
Manual Heating Start-Up
Press
to switch the heater
ON
or
OFF
immediately. The green light illuminates when
the heater is
ON
.
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