50
LP-520 REV. 5.1.17
B. LCD DISPLAY DESCRIPTIONS
Figure 36
– LCD Display Detail
LCD also features a backlit lamp that will illuminate:
•
When a user action is detected (a button is pressed)
•
The display has timed out for approximately 2 minutes
C. START-UP SEQUENCE
After the appliance is powered ON, the LCD display shows a sequence of information. The icons will flash, followed by various
indicators that describe the appliance controller and software versions. It will take the appliance roughly 15 seconds to cycle through
the Start-Up Sequence.
NOTE:
When the appliance is powered ON, the fan will operate at maximum speed for 1 minute to purge the air and any fumes from
the intake and exhaust pipes.
Display Items
Time for Display
Remarks
LCD Test
1 Sec
All segments “ON”
0.5 Sec
All segments
“OFF”
Category: 140W / 199W
1 Sec
Pdn
1 Sec
0051
Software Version for Front Panel
1 Sec
SPn
1 Sec
00.XX
Software Version for Appliance
1 Sec
SFn
1 Sec
XX.XX
Hardware Version for Appliance
1 Sec
Hdn
1 Sec
00XX
Table 21
– Start-Up Sequence
After start-up, the display appears as follows.
Figure 37
– Initial Display Screen Example
NOTE:
The initial display screen will differ depending on a number of factors, including whether the appliance detects a call for heat or
hot water.
The Control System can operate through user and service modes that have specific LCD outputs and dedicated controls, including:
•
Changing the Set-Point Temperature
