Program And Configure The Expansion Control Panel - Honeywell AQ25A Series Technical Reference Booklet

3 PROGRAM AND CONFIGURE THE
EXPANSION CONTROL PANEL
Control Panel Programming Defaults
Operation of the AQ254 Control Module is set by the menu
selections accessible through the Control Module's LCD
screen. See "AQ254 – System Programming" on page 9 for
instructions.
The AQ254 Control Panels are shipped from the factory with
pre-defined values for all program settings. These factory
default settings are commonly used by hydronics contractors
across North America. Usually, most of the settings only need
to be checked by the installing contractor to make sure they
are suitable for the job, rather than having to input all the
settings from scratch.
Although these factory default values are suitable for many
installations, Honeywell recommends that they be reviewed,
and changed as necessary, to get optimal performance of the
hydronic system controlled by the AQ2000 Series products.
AQ254 – System Programming
This section describes how to navigate the user interface using
the keypad and LCD display, and how to program the AQ254
Control Panel, which begins on page 10.
NOTES:
1. For information related to configuring Expansion
Zoning Panels connected to the AQ254, see
AQ2000 Series Expansion Zoning Panels - Prod-
uct Data Honeywell literature number 69-1981.
2. For information related to installing and configuring
the zone thermostats, refer to the Installation guide
for the appropriate AQ1000 thermostat.
STATUS OF FLOATING ACTION VALVE OUTPUT
- OPEN = VALVE IS CURRENTLY OPENING
- CLOSE = VALVE IS CURRENTLY CLOSING
GRAPHIC SHOWING THE DEGREE OF
MIXING IN THE SECONDARY LOOP:
# OF BARS INCREASES AS
A) THE INJECTION PUMP SPEED
INCREASES.
B) THE VOLTAGE OF THE MODULATING
VALVE SIGNAL INCREASING OR
DECREASING
C) THE ACTUAL MIX TEMPERATURE
APPROACHING THE MAXIMUM MIX
TEMPERATURE
ARROWHEADS ABOVE AND BELOW
THE BARS SHOW THE TREND OF THE
MIXED WATER TEMPERATURE
(UP OR DOWN)
STATUS OF LINE VOLTAGE OUTPUTS
(ACTIVE WHEN DISPLAYED ON LCD)
- SECONDARY PUMP
- AUXILIARY DEVICE
AQ25400B "ADD-A-TEMPERATURE" EXPANSION CONTROL PANEL
Keypad
The AQ254 User Interface consists of an LCD screen (8
characters by 3 rows) and a 3-button keypad for navigating the
menus, as illustrated in Fig. 7.
OK:
/ v:
^
LCD Display
The LCD on the AQ254 Control Panel is used to:
— Monitor system status and performance.
— Select and/or modify control settings for the system.
— Diagnose and troubleshoot system problems.
The layout of the display is logical and simple to navigate. The
information is displayed so that the installer can see at a
glance which group of zones is being controlled by the AQ254
(Group B, C, or D) and the operating temperature of the
Secondary loop. All system information is displayed in simple,
straightforward English for quick system diagnosis. Fig. 7
illustrates the layout and features of the LCD display panel and
keypad.
WHEN THE WORD "EDIT"
IS DISPLAYED THE "ACTIVE"
MENU ITEM IS CURRENTLY
BEING EDITED.
Open Close Edit
Mix
DISPLAY AREA
SHOWING
SYSTEM STATUS,
MENU OPTIONS, AND
SELECTIONS MADE
Fig. 7. LCD display and keypad layout.
9
The OK button of the AQ254 has five uses:
1. To view the System Status page.
• Push the OK button once.
2. To enter the INSTALLER menu to change a
parameter.
• Press and hold this button for 3 seconds to
enter or leave the INSTALLER menu.
3. To enter a sub-menu while in the INSTALLER
menus.
4. To toggle a parameter between two pre-defined
values (applicable when editing a value while in
INSTALLER mode).
5. To enter EDIT mode when changing a parame-
ter's value or setting.
The / v buttons of the AQ254 have three uses while
^
in the INSTALLER menus:
1. To scroll UP/DOWN in the menu screen.
2. To increase/decrease a menu item's value
(when EDITing a value).
3. To scroll through the possible values of a param-
eter (applicable when editing a value).
UP ARROW
IF DISPLAYED INDICATES THAT OTHER
MENU ITEMS EXIST ABOVE AND CAN
BE VIEWED BY SCROLLING UP
THE " " BUTTON
INDICATOR ARROW
INDICATES THE CURRENTLY
SELECTED "ACTIVE" MENU ITEMS
DOWN ARROW
IF DISPLAYED INDICATES THAT OTHER MENU
ITEMS EXIST BELOW AND CAN BE VIEWED BY
SCROLLING DOWN THE " " BUTTON
M27814
69-1987—02