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©2021 Lennox Industries Inc.
This manual must be left with the
owner for future reference.
Shipping and Packing List
Package 1 of 1 contains;
1 – Wireless Controller
2 – AAA batteries
1 – Remote controller holder with
mounting screw
Dallas, Texas, USA
USER GUIDE
Lennox Mini-Split Systems
Wireless Indoor Unit
Controller
CONTROLS
508214-01
10/2021
IMPORTANT!
Frequent changes to operating mode
may
cause
Allow at least one minute between
mode changes to allow the system to
stabilize.
General
The mini-split wireless controller model
RG10B-DCFC is a wireless local con-
troller for Lennox mini-split indoor unit
models MMDB, M22A, MFMA and
MCFB only.
1
(22U50)
system
malfunction.
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Summary of Contents for Lennox 22U50
- Page 1 Allow at least one minute between mounting screw mode changes to allow the system to stabilize. General The mini-split wireless controller model RG10B-DCFC is a wireless local con- troller for Lennox mini-split indoor unit models MMDB, M22A, MFMA and MCFB only.
- Page 2 Requirements Specifications Using the remote controller Table 1. Specifications • Point the remote controller directly at 3.0 VDC - (2 the indoor unit. Rated voltage AAA batteries included) • Stand within 25 feet of the indoor unit. Min voltage for sending •...
- Page 3 1. ON/OFF Button Wireless Remote Controller Button Functions Turns system on and off 2. UP/DOWN Buttons Increase or decrease the indoor temper- ature in one degree increments (maxi- mum 86°F, minimum 62°F) NOTE: Temperature cannot be adjust- ed in FAN mode. NOTE: Press and hold both buttons for three seconds to alternate the temperature display between...
- Page 4 9. TIMER Button NOTE: Holding Fan button down for 2 seconds will activate Silence • Initiates an auto-on or auto-off time feature. sequence 5. TURBO Button • Press TIMER button to initiate the ON Enables the unit to reach the preset time sequence temperature during cooling or heating operation in the shortest time...
- Page 5 11. SHORTCUT Button • . Restore the current settings or resume the previous settings 12. CLEAN Button • Start/stop the Self-Clean function • Unit cleans itself automatically NOTE: Only available in COOL or DRY modes. NOTE: Not for MCFA036-048 and MMDB036-048 models.
- Page 6 Wireless Remote Controller Screen Indicators Information is displayed when the Wireless Remote Controller is powered on. Self-Clean feature display Not applicable for this unit Sleep feature display Follow Me feature display Not applicable for this unit Transmission Indicator Low battery detection (flashing) Lights up when remote sends signal to indoor MODE display...
- Page 7 c. Press the ON/OFF button to start the Wireless Remote Controller air conditioner. Operation Timer ON/OFF Operation Auto Operation a. Press the TIMER button. The remote a. Press the MODE button to select controller shows TIMER ON or Auto. TIMER OFF icon b.
- Page 8 Lock Function Wireless Remote Controller Set a. Press the TURBO and HUMIDITY Button Function buttons together times less than one second to lock the Follow Me Controller to prevent tampering Allows remote temperature sensing of b. Press the TURBO and HUMIDITY the room at the remote controller loca- together buttons again for two tion.
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