HTP CGH-199O Series, Установка, Запуск, Обслуживание, Запасные Части и Гарантия, Страница: 36 / 60

lp-673 Rev. 000 Rel. 001 Date 8.30.18
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B. 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.
Display Items Time for Display Remarks
LCD Test
1 sec All segments “ON”
0.5 sec All segments “OFF”
Category: CGH-199
1 sec Pdn
1 sec 0061
Software Version for
Front Panel
1 sec SPn
1 sec 00.xx
Software Version for
Water Heater
1 sec SFn
1 sec xx.xx
Hardware Version for
Water Heater
1 sec Hdn
1 sec 00xx
Table 25 - Start-Up Sequence
After start-up, the display appears as follows.
Figure 38 - Initial Display Screen
The Control System can operate through user and service modes that
have specific LCD outputs and dedicated controls, including:
• Changing the DHW Set-Point Temperature
• Changing Time
• Status Display
• Installer Mode
• Error Mode
C. Changing the DHW Set-Point
The display shows the icon when the DHW set-point can be
changed.
Figure 39 - DHW Set-Point Screen
Press the button when the display panel is powered ON to change
the DHW Set-Point. The DHW icon and current set-point will display
and flash. This indicates that the DHW Set-Point can be changed.
Hotter water increases the risk of scald injury. Scalding may occur
within 5 seconds at a setting of 140
o
F (60
o
C). Water temperature
over 125
o
F can instantly cause severe burns, or death, from scalds.
Children, disabled, and elderly are at the highest risk of being
scalded. See instruction manual before setting temperature at
appliance. Feel water before bathing or showering!
D. Changing the Time
Press and hold the button for five seconds when the display
panel is powered ON to change the time. The settings can be
adjusted as follows: Year / Month / Date / Hour / Minute / Day of
Week.
Figure 40 - Changing the Time Screen
Turn the dial counterclockwise to lower and clockwise to raise
the current time setting. After changing the setting, press the
button to save it. The next adjustable setting will appear. After the
time and date have been set, press the button to save and
return to the main screen.
The LCD display 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
Factory DHW Set-Point is 120
o
F (48.8
o
C). Initial DHW Set-Point range
is 95 – 140
o
F (35 – 60
o
C).
Turn the dial counterclockwise to lower and clockwise to raise
the DHW set-point. After changing the temperature, press the
button to save the set-point.
To change the DHW Set-Point above 140
o
F (60
o
C), go into the
Installer Mode. Advance to parameter 25:rE and change the setting
from rE to Co. Then leave Installer Mode. Press the button. The
current DHW set-point will display. The temperature range is now
95 – 160
o
F (35 – 71.1
o
C).
Turn the dial counterclockwise to lower and clockwise to raise
the DHW set-point. After changing the temperature, press the
button to save the set-point.
NOTE:
After a DHW demand has been met, the post pump run time
(default: 1 minute) will run to normalize heat exchanger temperature
and prevent scale build-up.
NOTE: The water heater temperature will be 20
o
F higher than the
Storage Tank Temperature Setting UNLESS the Water Heater Offset
Temperature Setting (13:ST) is changed. For example: If DHW set-
point is 130
o
F, the standard Water Heater Offset Temperature Setting
of 20
o
F will equal a minimum water heater temperature of 150
o
F.