A.O. Smith GWV - 120, Инструкция по установке и обслуживанию

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Service program
70 Instruction manual GWV
12
is
12.5 Displaying the appliance selection
To display the appliance selection, use:
•
:
SELECT APPLIANCE
The appliance number can be found on the rating
plate.
The appliance selection has been correctly preset
in the factory.
12.6 Switching the pump on or off
If a program-controlled pump is
installed
(3.10.4 "Connecting a program-controlled
pump") then this can be turned ON or OFF via:
• :
PUMP RELAY
The standard setting for the pump is OFF.
If the
WEEK PROGRAM
or
EXTRA PERIOD
modes
are active, then the setting for the
WEEK PROGRAM
or
EXTRA PERIOD
modes takes priority over the
ON/OFF selection for the pump relay in the service
menu.
Example
One of the week program periods is 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.
12.7 Setting the service interval
To aid servicing, the electronic controller includes a
service interval which is used to set the frequency of
maintenance interval
(14.2 "Determining service
interval") by the service and maintenance engineer,
based on the number of burning hours.
The service interval is based on the number of burning
hours. This can be set to 500, 1000 and 1500 hours.
The standard setting for number of hours is
500 . Once
the preset number of hours is reached, a
message
(8.4 "Service condition") . to this effect will
appear. Adjust the service interval via:
•
:
SERVICE INTERVAL
12.8 Setting the display contrast
Set the display contrast as follows:
•
:
DISPLAY CONTRAST
The default setting is 100%. The range is 0 to
100%.
The figure shows the related display.
12.9 Setting the display backlight switching
period
Set the backlight time (the time that the display
backlight remains lit after the last button is pressed) as
follows:
•
:
BACKLIGHT TIME
The default value is 255 seconds. The range is 0
to 255 seconds.
The figure shows the related display.
12.10 Setting the display scroll speed
Adjust the control speed via:
•
:
SCROLL SPEED
The default is 10. The range is from 0 through 100.
Setting the value too high or low will make scrolling
difficult.
12.11 Setting the stage difference for the
appliance
Switching from partial load to full load is handled by
the electronic controller, using the stage difference.
This value is adjustable.
APPLIANCE HISTORY
BURNINGHOURS 000410
^IGNITIONS 001000
ÈFLAME ERRORS 000021
IGNIT ERROR 000013
SELECT APPLIANCE
»5934
^ 8576
È 3379
6527
2331
3908
2510
7767
PUMP RELAY
»ON
OFF
SERVICE INTERVAL
» 500
^ 1000 BURNING HOURS
È 1500
DISPLAY CONTRAST
» 90 %
BACKLIGHT TIME
» 255 sec
SCROLL SPEED
» 10