C O M M E R C I A L
P R O D U C T S P E C I F I C AT I O N S
The F1943L-3P (19B16) is a wired local touchscreen
controller for VRF Heat Recovery, VRF Heat Pump and
Mini-VRF Systems.
Remote control via Wi-Fi is available with the free VRF
Controller App. See page 7.
NOTE - Refer to the Controller Installation Instructions and
the App User Manual for additional information.
Touchscreen Display
• 4 in. capacitive touchscreen with full color LCD display
and intuitive navigation
• Screen is illuminated when touched and remains lit
during control access
Dimensions
• 3-5/8 x 5 x 7/8 in. (H x W x D)
• Wallplate and additional hardware is furnished for
installation
Wiring
• Controller uses low voltage 4-wire 18AWG shielded cable
(not furnished) for easy connection to the indoor unit
Grouping
• Controller can control up to 16 indoor units on the same
system
CONTR OLLER USER SE T TIN GS
HOME SCREEN (Thermostat ON)
ACTUAL TEMPERATURE DISPLAY
UP/DOWN ARROWS ADJUST
TEMPERATURE
TEMPERATURE "SET TO" DISPLAY
RELATIVE HUMIDITY DISPLAY
MODE
V A R I A B L E R E F R I G E R A N T F L O W S Y S T E M S
VRF
62°F to 86°F
HEAT
COOL
OFF
F1943L-3P
Touchscreen Wi-Fi Controller
Bulletin No. 210967
Supersedes April 2022
Notes
Touch blank screen to turn on the backlight
if brightness setting is set to 0%.
Touch the MODE button on the upper-right
of the home screen to access the Main
Menu screen.
60 Hz
July 2023
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