Display The Selected Water Heater; Switching The Pump On Or Off; Setting The Service Interval; Service Mode - A.O. Smith BFC-28 Installation, User And Service Manual

12
Call up the menu for displaying the water heater
history as follows:
• : APPLIANCE HISTORY
The figure shows an example.
APPLIANCE HISTORY
BURNINGHOURS 000410
^IGNITIONS 001000
ÈFLAME ERRORS 000021
IGNIT ERROR 000013

12.5 Display the selected water heater

Call up the menu for displaying the water heater
selection as follows:
• : SELECT APPLIANCE
The water heater number can be found on the
rating plate.
The water heater selection has been correctly
preset in the factory.
SELECT APPLIANCE
»5934
^ 8576
È 3379
6527
....

12.6 Switching the pump on or off

If a program-controlled pump is
installed (3.10.5 "Connecting a program-controlled
pump") , it can be switched ON or OFF as follows:
• : PUMP RELAY
The standard setting for the pump relay is OFF.
PUMP RELAY
»ON
OFF
If the mode WEEK PROGRAM or EXTRA PERIOD is
active, then the setting for mode WEEK PROGRAM or
EXTRA PERIOD has priority over the ON/OFF
selection for the pump relay in the service menu.
Example
One of the week program periods is currently active.
During this period, the pump relay setting is OFF. If the
pump relay is set ON in the service menu, the pump
will nonetheless remain OFF. The pump will only
switch ON once the week program period has ended.
70
Service program

12.7 Setting the service interval

The service interval is a feature of the controller to help
the service and maintenance engineer set the
frequency of maintenance (14.2 "Determining service
interval").
The service interval is determined by the number of
months that the appliance has been running. This can
be set to 6, 9 and 12 months. The default service
interval is 12 months . When the preset number of
hours has been reached, an appropriate
message (8.4 "Service condition") will appear. Set the
service interval as follows:
•
SERVICE INTERVAL
»12

12.8 Service mode

The Installation engineer uses the SERVICE
OPERATION menu to adjust the water heater CO
setting duringFULL LOAD and PARTIAL LOAD
operation.
Use
SERVICE OPERATION menu.
SERVICE OPERATION
»FULL LOAD
LOAD and FULL LOAD.
If there is a heat demand, the water heater will first run
through a startup cycle, then continue to operate in
FULL LOAD or PARTIAL LOAD mode.
If there is no heat demand, the installation engineer
must create one. This can be done by draining the
water heater until it is cold or by temporarily raising the
set point using
be set back to the original value using
if you exit the SERVICE OPERATION menu or if no
buttons are pressed for a period of 15 minutes, the
water heater will revert to the original operating mode.
: SERVICE INTERVAL
6
9 Months
:SERVICE OPERATION to display the
PARTIAL LOAD
and can be used to switch between PARTIAL
. After adjustment, the set point must
Instruction manual BFC
is
2
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