Table Of Contents - Lennox VPA048H4 Installation & Operation Instructions

Table of Contents

General1
Shipping And Packing List1
Safety Requirements2
Model Number Identification2
System Piping2
Dimensions - Inches (Mm)3
Center Of Gravity3
Top View3
Front View3
Installation Clearances - Inches (Mm)4
Single Unit Installation4
Parallel Units Side By Side4
Parallel Units Back To Back, Facing And Front To Back4
Unit Placement5
Installation5
Slab Or Roof Mounting5
Lifting The Unit5
Securing Outdoor Unit To Slab Or Frame6
Securing Outdoor Unit To Wall-Mounted Brackets6
Condensate Drains6
Cold Climate Considerations7
Snow And Ice Protection7
Air Flow Obstructed By Snow7
Prevailing Winds Protection8
Unit On Brackets Above Snow Line8
Unit With Wind Barrier8
Unit Inside Of Mechanical Enclosure8
Buried Refrigerant Pipe Protection9
Unit Installed In Alcove9
Installing The Unit Inside Of Building10
Inside Installation Clearances10
Louvered Discharge Opening Considerations11
Ducted Discharge Considerations12
Unit Front Dimensions12
Refrigerant Piping Connections13
Refrigerant Piping / Wiring Inlets13
Straight Pipe In And Out14
Making Connections15
Tighten Flare Nut15
Flare Nut Torque Recommendations15
Insulate Flared Connections15
Length And Maximum Height Difference16
Refrigerant Pipe Selection20
Triple Evacuation Procedure21
Pressure Test21
Evacuate System21
Additional Refrigerant Charge22
Liquid Line Length Calculation22
Branch Pipe Kit Calculation22
Wiring Connections23
Power Terminal Strip23
Wiring Terminals23
Typical Unit Wiring Diagram24
Typical Low-Voltage Field Wiring24
Typical 208/230V Power Wiring25
Typical Communication Wiring25
Network Address And Commissioning27
Sw2 Query Instructions28