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INSTALLATION

INSTRUCTIONS 

VRF SYSTEMS -- Floor Standing Indoor Units

508061-01

03/2020

THIS MANUAL MUST BE LEFT WITH THE OWNER FOR 

FUTURE REFERENCE

Shipping and Packing List 

General

Check the components for shipping damage. If you find 

any damage, immediately contact the last carrier. 

Package 1 of 1 contains the following:

1 - Assembled indoor unit

4 - Foot bolts

1 - Receiver/Display panel

2 - Refrigerant piping insulation sleeves 

1 - Resistor

2 - Brass flare nut

1 - Controller Wiring harness 

1 - Water level switch cable 

1 - Installation manual

Optional accessories, purchased separately:

1 - Wired controller V0STAT55P-3 (19X69)

2 - Base (VSEA only)

2 - Support feet V8VSA001-3P (19X68)

VSCA Floor Standing Cased / 

VSEA Floor Standing Exposed

The VSC Floor Standing Cased / VSE Floor Standing Ex-

posed non-ducted indoor units are matched with an outdoor 

heat recovery or heat pump unit to create a VRF (variable 

refrigerant flow) system that uses HFC-410A refrigerant. 

Refer  to  the  Product  Specification  bulletin  (EHB)  for  the 

proper use of these indoor units with specific heat pumps, 

heat recovery units, mode switching devices, branch pipes, 

line sets and controls. 

These instructions are intended as a general guide and do 

not supersede local codes in any way. 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.

Installation and service must be performed by a li­

censed professional HVAC installer, service agency 

or the gas supplier.

Failure to follow safety warnings and these instruc­

tions exactly could result in property damage, dan­

gerous operation, serious injury, or death.

Any additions, changes, or conversions required in 

order for the appliance to satisfactorily meet the ap­

plication needs must be made by a licensed profes­

sional HVAC installer (or equivalent) using factory­

specified parts.

Do not use this system if any part has been under 

water. A flood-damaged appliance is extremely dan-

gerous. Immediately call a licensed professional 

HVAC service technician (or equivalent) to inspect 

the system and to replace all controls and electrical 

parts that have been wet, or to replace the system, if 

deemed necessary.

The State of California has determined that this 

product may contain or produce a chemical or 

chemicals, in very low doses, which may cause 

serious illness or death. It may also cause cancer, 

birth defects, or reproductive harm.

CAUTION

!

As with any mechanical equipment, personal injury 

can result from contact with sharp sheet metal edges. 

Be careful when you handle this equipment.

©2020 Lennox Industries Inc. Dallas, Texas, USA

VRF

Содержание VSCA Series

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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