Honeywell AQ25A Series Technical Reference Booklet page 131

Programmable boiler control panels
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SYSTEM STATUS
See Table 4 on
page 22
PREFERENCES/TIME
BOILER UNITS
ZONE UNITS
TIME DISP
D.S.T.
YEAR
MONTH
DATE
DAY
TIME
HOMEPAGE
BACKLIGHT
POWER FAILURE
NOTICE
Table 5. User Menu.
Factory
Range
Default
Identifies what is happening within the system.
n/a
Allows you to set up the AQ252 Control Panel with preferred display, time, date, and
temperature settings.
°F or
°F
°C
°F or
°F
°C
12H or
12H
24H
ENABLE or
ENABLE
DISABLE
2000 - 2099
2008
JAN, FEB, MAR,
JAN
APR, MAY, JUN,
JUL, AUG, SEP,
OCT, NOV, DEC
01 to 31
01
MONDAY,
MONDAY
TUESDAY,
WEDNESDAY, ...
SUNDAY
00:00A to 12:59P
12:00A
(00:00 to 23:59)
(midnight)
SIMPLE or
DETAIL
DETAIL
AUTO or
AUTO
ON
BACKLIGHT or
BACKLIGHT
MSG.ONLY
AQ252 Universal Injection/Mixing Boiler Reset Control Panels
Multiple status and alarm messages can display on this
n/a
page. This diagnostic information is for troubleshooting
purposes. However, only the status and messages
pertinent to the system's current operating condition will
display.
Choice of temperature units (F or C) for displaying
temperatures on the AQ252 LCD display.
Choice of temperature units (F or C) for displaying
temperatures (on the AQ1000 zone thermostats).
Choice of time format display: 12 hour format (e.g., 2:00 P)
or 24 hour format (e.g., 14:00).
Enables / disables automatic change to and from Daylight
Savings Time.
Select the year when the control is commissioned.
Select the month of the year when the control is
commissioned.
Select the date (01-31) of the month when the control is
commissioned.
Select the day of the week when the control is
commissioned.
Select the time of day when the control is commissioned.
You can change the time with the + and – buttons, just as
with a clock radio.
Select the 3 line (Simple) display or the 10 line (Detail)
display for the Home Page.
• Auto mode = backlight illuminates when any button on
the display is pressed. It turns off after 1 hour.
• ON mode = backlight stays on constantly.
The building owner can be notified in one of two ways that
the AQ252's DATE and TIME OF DAY settings need to be
reset:
1. By displaying the message, PLS SET DAY/TIME, on
the first line of the Home Page
2. By repeated flashing of the AQ252's LCD backlight
and displaying the message PLS SET DAY/TIME, on
the first line of the Home Page
25
Description
69-1986—02

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