8
For MQ modulating iQ gas furnaces only, an additional
screen titled “OUTDOOR SYSTEM” will appear after the
SYSTEM CONFIGURATION summary screen. “HEAT
PUMP-IQ” should appear on the second line; no other option
may be selected in this screen. Press the key to proceed.
O U T D O O R S Y S T E M
H E AT P U M P - I Q
2 N D S T G D I F F E R E N T I A L
S TA G E S
C A PA C I T Y ( T O N S )
-
-
-
A I R F L O W , C F M P E R T O N
-
Proceed through the subsequent confi guration screens
either accepting or changing entries, until the INSTALLER
SETTINGS menu is displayed again. This is an indication
that confi guration has been completed.
Accessories
Use the or keys to select ACCESSORIES. Press the
key to enter the accessories submenus and screens. This
set of screens allows the installer to trigger alerts (reminders)
when periodic maintenance is recommended for any of the
following accessories:
• Air
fi
lter
• Humidifi
er
• U/V
lamp
• Air
cleaner
If desired, set the maintenance alert timing for any of these
based on either hours of operation or calendar time. When
triggered by the passing of the selected time or operating
hours, the maintenance reminder message string will be
displayed on the top of the Main Screen. In addition, at the
base of the Main Screen “CANCEL ALERT” will appear. When
this is selected and the key is pressed, the maintenance
reminder message will be removed.
A C C E S S O R I E S
A I R F I LT E R
U V L A M P
H U M I D I F I E R
A I R C L E A N E R
Making changes or entries under ACCESSORIES is optional.
Dealer Information
Use the or keys to select DEALER INFORMATION. Press
the key to enter the dealer information summary screen,
and submenus and screens. This set of screens allows the
installer to enter text information which will be displayed on a
SERVICE NEEDED display screen if a persistent fault occurs.
The following items may be entered:
• Brand name (Maytag, Frigidaire, NuTone, Broan, Tappan,
Westinghouse, or custom)
• Model Number
• Contractor Name
• Contractor Phone Number
D E A L E R I N F O R M AT I O N
B R A N D N A M E
C O N T R A C T O R N A M E
M O D E L N U M B E R
9 1 1 - 3 9 3 - 7 7 7 7
M A Y TA G
F T 4 B I - 0 4 8 K
J O E ’ S H V A C
C O N T R A C T O R P H O N E
The entered dealer information summary screen accessible
here will be available for future reference by a serviceperson
(under INSTALLER SETTINGS > DEALER INFORMATION).
Entry of this information is optional.
Defrost Confi guration
Use the or keys to select DEFROST CONFIG. Press the
key to enter the screen which allows changes to:
• DEFROST TERMINATION TEMPERATURE. This is the
outdoor coil temperature value which, when reached during
the defrost sequence, will signal the end of the defrost phase
during which the system heats up the outdoor coil to melt
accumulated frost. (Default value is 75°F.)
• COIL DEFROST DELTA T. During heat pump heating
operation a defrost sequence will be triggered when
the outdoor coil temperature falls this amount below the
temperature it would operate at with a clear, unfrosted coil.
(Default value is 6°F.)
D E F R T E R M I N AT I O N T E M P
6 D E G F
7 5 D E G F
C O I L D E F R O S T D E LTA T
D E F R O S T C O N F I G