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VWMB

Wall-Mounted Non-Ducted Unit

V22B

Compact 360° Cassette

V33B

360° Cassette

VMDB

Medium-Static Concealed Duct Unit

VHIB

High-Static Concealed Duct Units

VCFB

Ceiling- or Floor-Mounted

Non-Ducted Unit

VVCB

Air Handler

USER’S MANUAL

VRF SYSTEMS -- Indoor Units

507922-02

05/2019

VRF Indoor Units

THIS MANUAL MUST BE LEFT WITH THE OWNER 

FOR FUTURE REFERENCE

VRF

©2018 Lennox Industries Inc. Dallas, Texas, USA

VOWA

One-Way Cassette

VOSB

Outside Air Unit

Summary of Contents for VRF V22B Series

Page 1: ...High Static Concealed Duct Units VCFB Ceiling or Floor Mounted Non Ducted Unit VVCB Air Handler USER S MANUAL VRF SYSTEMS Indoor Units 507922 02 05 2019 VRF Indoor Units THIS MANUAL MUST BE LEFT WITH...

Page 2: ...f the unit and all other appliances that may cause a spark Call a licensed professional HVAC technician or equivalent to repair the leak DO NOT spray water on the indoor unit for any reason Do not tou...

Page 3: ...DIFFUSER LOUVER ADJUSTMENT LEVER VCFB Ceiling or Floor Mounted Non Ducted Unit RETURN AIR DISCHARGE AIR LOUVER AIR FILTER VWMB Wall Mounted Non Ducted Unit RETURN AIR GROUNDING SCREW In control box DI...

Page 4: ...HIB High Static Concealed Duct RIGHT SIDE VIEW LIQUID PIPE GAS PIPE AIR FLOW SUPPLY AIR DUCT OPENING AUXILIARY DRAIN CONNECTION Either Side PRIMARY DRAIN CONNECTION Either Side RETURN AIR DUCT OPENING...

Page 5: ...charge air louvers downward during heating and outward during cooling VCFB Ceiling or Floor Mounted Units Use the wired controller or the remote control to set the position of the discharge air louver...

Page 6: ...heck the filter more frequently if the unit is installed in an area with a large amount of dust The filter may be removed and cleaned or it should be replaced with a filter of like kind and size if it...

Page 7: ...uld be held with the air entering side face down when using clean water to wash the filter Filter should be set aside to air dry after cleaning Do not place filter in direct sunlight or use any type o...

Page 8: ...nitiated the opera tion light is lit to signal normal operation The PRE DEF indicator may be lit as well The indoor unit fan will not operate until the indoor coil reaches a pre set temperature This p...

Page 9: ...the system Suction pressure is low due to possible refrigerant leak Clean indoor and or outdoor coil Clean or replace air filter Remove obstructions Close doors and windows Use curtains or blinds to...

Page 10: ...odes will alternate so that all codes are shown Make note of the code E1 EE etc then reset the display by pressing the ON OFF button on the wireless remote controller Press the ON OFF button a second...

Page 11: ...lowly EEPROM ERROR NOTES LED FLASHING SLOWLY 1 FLASH PER SECOND LED FLASHING FAST 2 FLASHES PER SECOND Shown on Indoor Unit Receiver LED Display Error Code Description FE No address E0 Mode conflict E...

Page 12: ...12 Technical Support 1 844 GET VRF1 1 844 438 8731 vrftechsupport lennoxind com www LennoxVRF com Download the app from the Apple App Store or the Google Play store...

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