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Model Number Identification

Safety Requirements

ELECTRICAL SHOCK, FIRE, OR EXPLOSION HAZARD.

Do not touch the unit or the controller if your hands are wet. 

DO NOT spray water on the indoor unit for any reason. 

Do not replace a fuse with a fuse of a different rating. Do not use a jumper wire to replace a fuse. Do not insert 

your hands, tools or any other item into the air intake or air outlet at either the indoor or outdoor unit. 

Do not allow children to operate the system.

WARNING

!

V SC A 012  

H

 4  -  3  P

Brand/Family 

V = Variable Refrigerant Flow (VRF)

Unit Type 

SC = Floor Standing Cased Non-Ducted Indoor Models 

SE = Floor Standing Exposed Non-Ducted Indoor Models

Major Design Sequence 

A = 1st Generation

Cooling Efficiency

 

H = High Efficiency

Refrigerant Type 

4 =  R-410A

Controls Protocol 

3 = Phase 3

Nominal Cooling Capacity ­ Btuh 

007 = 7,000 Btuh
009 = 9,000 Btuh

012 = 12,000 Btuh 
015 = 15,000 Btuh 
018 = 18,000 Btuh 
024 = 24,000 Btuh

Voltage 

P = 208/230V-1 phase-60hz

System Piping

 CAUTION

VRF system piping is customized for each installation. 

The LVSS piping report is an engineered design that must 

be followed. The piping diagram or diagrams included 

within the LVSS report have been prepared based on 

the information provided to the Lennox VRF applications 

department. 

When  the  indicated  lengths  change  from  the  figures 

stated within the report, it is imperative that prior to the 

commencement of the refrigerant pipe work installation, 

Lennox VRF applications department are informed of 

these proposed changes.

Upon receipt of this new information the Lennox VRF 

applications  department  will  confirm  any  changes  that 

may be applicable to this installation. If changes are 

required, a new piping diagram will be produced and will 

supersede all other previously provided documents.

Failure to provide this information regarding changes 

to the original design may lead to insufficient capacity, 

equipment failure, warranty being made void and the 

refusal to commission the system.  

Summary of Contents for VSCA Series

Page 1: ...Consult authorities having jurisdiction before installation WARNING Improper installation adjustment alteration ser vice or maintenance can cause property damage personal injury or loss of life Instal...

Page 2: ...uh 018 18 000 Btuh 024 24 000 Btuh Voltage P 208 230V 1 phase 60hz System Piping CAUTION VRF system piping is customized for each installation The LVSS piping report is an engineered design that must...

Page 3: ...2 495 19 1 2 495 23 1 4 591 23 1 4 591 C 30 762 38 3 4 984 43 1 2 1105 43 1 2 1105 D 14 3 4 375 14 3 4 375 15 3 8 391 15 3 8 391 RIGHT SIDE VIEW LIQUID PIPE GAS PIPE C TOP OF UNIT AIR FLOW BOTTOM OF U...

Page 4: ...feet accessory Model Cat LIQUID PIPE GAS PIPE AIR FLOW AIR FLOW RETURN AIR OPENING ELECTRICAL CONTROL BOX CONDENSATE DRAIN CONNECTION CONDENSATE DRAIN CONNECTION ELECTRICAL CONTROL BOX FILTER ACCESS...

Page 5: ...3 8 391 15 3 8 391 G 36 914 44 5 8 1133 49 3 8 1254 49 3 8 1254 H 18 1 2 470 18 1 2 470 22 1 4 565 22 1 4 565 RIGHT SIDE VIEW LIQUID PIPE GAS PIPE SUPPLY AIR OPENING TOP OF UNIT AIR FLOW BOTTOM OF UN...

Page 6: ...GAS PIPE AIR FLOW RETURN AIR OPENING ELECTRICAL CONTROL BOX AIR FLOW ELECTRICAL CONTROL BOX CONDENSATE DRAIN CONNECTION CONDENSATE DRAIN CONNECTION CONDENSATE DRAIN CONNECTION FILTER ACCESS Dimensions...

Page 7: ...3 1 2 89 TOP 59 1499 SIDE 6 152 Optional Feet Accessory V8VSA001 3P 19X68 BACK 2 51 BOTTOM 3 1 2 89 SIDE 24 610 SIDE 6 152 TOP 59 1499 VSCA Floor Standing Cased Mounted on Wall VSCA Floor Standing Cas...

Page 8: ...Mounted on Wall VSEA Floor Standing Exposed with Optional Feet Accessory BOTTOM 3 1 2 89 SIDE 24 610 SIDE 6 152 TOP 59 1499 Base Optional Feet Accessory V8VSA001 3P 19X68 BACK 2 51 SIDE 24 610 SIDE 6...

Page 9: ...oled Ensure the structural wall or floor can support the weight of the unit Select a location where condensate line will have the shortest run to a suitable drain per local codes Installation 1 Locate...

Page 10: ...rmally high operating pressures and may result in system failure or explosion Insulate all refrigerant piping Refrigerant pipes may be very hot during unit operation Do not allow contact between wirin...

Page 11: ...t connections and field supplied insulated piping All field piping connections shall be insulated and air tight to prevent unwanted condensation build up Figure 6 Flared connections should always be a...

Page 12: ...re that the line will drain freely 5 After the system installation is complete the condensate drain line must be checked for leaks and proper drainage If a field provided condensate pump has been inst...

Page 13: ...over tightened screws might be damaged Refer to the table below for the tightening torque of the terminal screws A disconnection device having an air gap contact separation in all active conductors s...

Page 14: ...230V 3Ph 60Hz or 460V 3Ph 60Hz Power supply 208 230V 1Ph 60Hz Power supply Mode Selection Box Indoor unit Indoor unit Indoor unit Dedicated breaker Service Disconnect L1 L2 L1 L2 Fuse Service Disconn...

Page 15: ...polarity sensitive Typical Wiring Diagram NEC CEC and Local Codes apply Outdoor unit Outdoor unit sub1 unit Outdoor unit sub2 unit PQ main unit PQ MS Box PQ PQ MS Box PQ PQ H1 H2 H1 H2 H1 H2 Outdoor...

Page 16: ...nd Q of the daisy chain P Q All shields of shielded cable connect to chassis GROUND terminal at Indoor Units 18 GA stranded 2 conductor shielded control wire polarity sensitive Typical Wiring Diagram...

Page 17: ...r CN14 GM1 GM2 XP6 XP4 XP3 XP2 XP1 BLUE BLACK WHITE RED XS4 XS3 XS2 XS1 XS6 XP7 XS7 CN12 NOTE 1 Refer to manual for communication wiring 2 Please use the 2 conductor shielded twisted cable for communi...

Page 18: ...nd and tools to metal prior to handling the control IMPORTANT V0STAT55P 3 is an optional wired non programmable lo cal controller that controls VSC VSE Floor Standing indoor units These instructions a...

Page 19: ...trol Board Back of Controller 10 Conductor Wiring Harness Display Receiver Panel 5 Conductor Wiring Harness To Indoor Unit Main Board Connect to Receiver Connect to Controller Wiring Harness Plug into...

Page 20: ...down arrow buttons to adjust the set point When in Auto mode separate heating and cooling setpoints can be set Press the Mode button to switch between heat ing and cooling setpoints Backlight The back...

Page 21: ...information can also be obtained using the wired remote controller No Content Recorded Value Date 0 Normal display 1 Communication address of indoor unit 2 Indoor unit capacity horsepower 3 Network ad...

Page 22: ...roken and restored at the disconnect switch or circuit breaker call VRF Technical Support 1 844 438 8731 Troubleshooting Figure 19 Receiver Display Error Code Description FE No address E0 Mode conflic...

Page 23: ...23 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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