Trane Modu Heating System User Manual


 
68 SCXG-SVX01B-EN
Temporary Override Run Mode
The temporary override run mode sends
setpoint data to the Unit Control Module
(UCM) from the setpoint data entered in
the temporary manual override menu.
In temporary override run mode, most of
the keypad functions lock out with these
exceptions:
The mode button still functions as in
normal run mode.
The fan button still functions as in
normal run mode.
Depressing the holdtemp button toggles
the ZSM between the temporary
manual override menu and override
run mode. (if no button is pressed for 20
seconds while in temporary manual
override menu, the ZSM exits to normal
run mode, ignoring the temporary
override settings.)
Depressing either theor ¯ arrow while
in the override run mode will cause the
ZSM to toggle to the temporary manual
override menu.
The erase button will turn off the check
filter icon if displayed.
Simultaneously depressing and holding
the positive and negative sides of the
minus and plus for four seconds
will lock out the keypad.
Time is not adjustable in this mode.
The program button is disabled.
ProgrammingInstallation
Figure I-P-5. Override run mode screen.
Keypad Operation for Temporary Manual
Override Menu
The keypad has the same function in
temporary manual override menu as in
all other menus, with a few exceptions:
Depressing the holdtemp or program
buttons while in temporary manual
override menu will enter settings and
begin temporary manual override run
mode. See Figure I-P-5.
Depressing the day button will toggle
the ZSM between the day and hour
icon.
Depressing the mode button will toggle
the ZSM between the heat and cool
icons and setpoints.
Depressing the erase button will cancel
the override and return the ZSM to
normal run mode.
If no button is pressed for 20 seconds,
the ZSM exits temporary manual
override menu and enters the normal
run mode, ignoring the temporary
manual override menu settings.
Temporary Manual Override Run Mode
The temporary manual override run
mode sends setpoint data to the UCM
from the setpoint data entered in the
temporary manual override menu. See
Figure I-P-7.
Figure I-P-6. Temporary manual override
menu screen.
In temporary manual override run mode,
most of the keypad functions lock out with
these exceptions:
The mode button still functions as in
normal run mode.
Depressing the holdtemp button toggles
the ZSM between temporary manual
override menu and temporary manual
override run mode. If no button is
pressed for 20 seconds, while in the
temporary manual override menu, the
ZSM exits to the normal run mode,
ignoring the temporary manual
override settings.
Depressing either the up or down arrow
keys while in temporary manual
override run mode will cause the ZSM
to toggle to temporary manual override
menu.
The erase button will turn off the check
filter icon if displayed.
Simultaneously depressing and holding
the positive and negative sides of the
minus/plus key for four seconds will lock
out the keypad.
Time is not adjustable in this mode.
Figure I-P-7. Temporary manual override run
mode screen.