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Instruction manual BFC 55
gis
9 Starting the water
heater
9.1 Introduction
This chapter covers the following topics:
Starting the appliance.
The appliance's heating cycle
.
9.2 Starting the appliance
Start the water heater as follows:
1. Fill the water heater (5 "
Filling").
2. Open (3.5 "
Installation diagram") the manual gas
valve.
3. Switch on the power to the water heater using the
isolator between the water heater and the power
supply.
4. Switch the controller ON by setting the ON/OFF
switch to positionI.
The display will now show
INTERNAL CHECK
for
about 10 seconds and will then go to the main
menu.
5. Press once on the blue arrow ( ) to position the
cursor beside
ON
, then press . The
display shown in the figure will appear.
6. Confirm the selection
START OPERATION
with
.
The appliance is now in "ON mode". If there is a
heat demand, the appliance will run through the
heating cycle (9.3 "
The appliance's heating
cycle").
If the heating cycle is not run, there is no heat
demand; if this is the case, Tset will probably need
to be set (11.4 "Setting the water temperature").
9.3 The appliance's heating cycle
The appliance's heating cycle is activated when the
measured water temperature (T
1
) falls below the
threshold value (T
set
). This threshold value depends
on the currently selected appliance operating mode.
For example, if the appliance is in "OFF" mode (frost
protection), then this value is 5°C. If the appliance is in
"ON" mode, this threshold value is adjustable, for
example to 65°C.
The heating cycle runs successively through the
following states:
1. HEAT DEMAND;
2. PRE-PURGE;
3. PRESSURE SWITCH;
4. PRE-GLOW;
5. IGNITION;
6. RUNNING;
7. POST-PURGE.
The entire cycle is explained in the following example,
which assumes the water heater is in operating mode
ON
.
Note
The same operating cycle applies to the other
operating modes.
INTERNAL CHECK
MENU
»OFF
^ ON
È WEEK PROGRAM
»START OPERATION
^CHANGE SETPOINT
È Tset=65ÉC
a
a
a
55


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Others manual(s) of A.O. Smith BFC80

A.O. Smith BFC80 Usermanual and installation guide - German - 100 pages

A.O. Smith BFC80 User Manual - Dutch - 116 pages

A.O. Smith BFC80 Manual - Dutch - 2 pages


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