7
operating mode (e.g., COOL or HEAT) in large numerals and
letters. Across the bottom line of the display are fi ve words
or abbreviations (normally RH TEMP MODE FAN MENU)
which represent selectable entry points into the menus. The
user can always return to the main screen from any other
screen by repeatedly pressing the key.
76°
HUMIDITY
36
HEAT
FAN AUTO
MODE
RH
FAN
TEMP
3/13/09
12:18 PM
OUTDOOR
70
HEAT 62
COOL 85
MENU
For iQ Zone systems with zone control enabled, the Main
Screen will appear slightly different, as shown below. The local
temperature reading is absent, and ZONE CNTL appears
under the operating mode.
HUMIDITY
36
COOL
FAN AUTO
MODE
MENU
FAN
RH
TEMP
1/19/09
10:00 AM
OUTDOOR
46
ZONE CNTL
Installer Settings
Using procedures explained in iQ Drive training, go to the
INSTALLER SETTINGS menu screen.
I N S TA L L E R S E T T I N G S
S Y S T E M C O N F I G U R AT I O N
R E S T O R E D E F A U LT S
D E A L E R I N F O R M AT I O N
A LT I T U D E A D J U S T
A C C E S S O R I E S
S E R V I C E T E S T S
D E F R O S T C O N F I G
H E AT O F F D E L A Y
I Q D R I V E R E V 5 . 0
Other than in the splash screen displayed when power is
fi rst applied to the controller, this is the only screen which
displays the controller software version number.
NOTE: It is important that any settings or service tests which
are appropriate be made at the time of system installation.
System Confi guration
Any time “CONFIGURATION NEEDED” appears at the top of
the Main Screen, the user must proceed through the SYSTEM
CONFIGURATION screens, even if no changes to values or
options are necessary. This will occur when installing a new
thermostat or moving a thermostat to a different type of iQ
system. The outdoor unit should be powered up when
confi rming or entering system confi guration.
With the fi rst line SYSTEM CONFIGURATION selected,
press the key to proceed through the system confi guration
screens. The next screen, titled SYSTEM CONFIGURATION,
provides a read-only summary of the confi guration (as
detected, and otherwise showing either defaults or previously
confi gured information).
O U T D O O R S Y S T E M
S Y S T E M C O N F I G U R AT I O N
1 S T G G A S F U R N A C E
H E AT P U M P - I Q
I N D O O R U N I T - O K
2 T O N
W I T H
B L O W E R T Y P E B
C O M M U N I C AT I O N
O U T D O O R U N I T - O K
The words under OUTDOOR SYSTEM and WITH describe
the system components as automatically detected by the
controller. Both entries under COMMUNICATION should
show “OK”. If “CHECK” appears, it is an indication that either
communication wiring is incomplete or incorrect, or the
outdoor unit is not powered up. Proceed through subsequent
screens by using either the or key (indicated by “NEXT”).
The following table indicates the information that may be
or needs to be manually confi gured or confi rmed by the
installer. (Information not listed is automatically determined.)
If necessary, check the ratings of the indoor unit before
proceeding.
Indoor Unit
Items Requiring Manual Confi guration
(or Confi rmation)
Electric Heat
Heat type, number of stages, staging
differentials, kW
G6 gas furnace
Heat type, number of stages, 1
st
stage start
differential, furnace input rate, furnace rise. If
2-stage: 2
nd
stage differential
G7 single stage gas
furnace
1
st
stage start differential, furnace rise
G7 two stage gas
furnace
1
st
stage start differential, 2
nd
stage differential,
furnace rise
Modulating MQ gas
furnace
Furnace rise
Table 5. System Confi guration Entry Summary