Enertech Global, LLC 2
AV : MD/ME - Rev. A Models
Installaon and Operaons Manual
Table of Contents
Secon 1: Model Nomenclature
Nomenclature Decoder ..................................................................................................................................................................4
Secon 2: Product & Unit Data
Unit Dimensional Data : AV ............................................................................................................................................................5
EAV Series Outdoor Unit Labels ......................................................................................................................................................6
EAV Outdoor Unit Side Panel Removal ...........................................................................................................................................6
EAV Unit Electrical Layout...............................................................................................................................................................7
EAV Unit Refrigerant Circuit Layout ................................................................................................................................................8
Unit Dimensional Data : MD/ME ....................................................................................................................................................9
EME/EMD Unit Labels ...................................................................................................................................................................10
EME/EMD Unit Interior Layout .....................................................................................................................................................11
Unit Electrical Data : AV ................................................................................................................................................................12
Unit Electrical Data : MD/ME ........................................................................................................................................................12
Secon 3: Introducon & Operaonal Consideraons
Introducon ..................................................................................................................................................................................13
Inspecon .....................................................................................................................................................................................13
Pre-Installaon Steps ....................................................................................................................................................................13
Consumer Instrucons ..................................................................................................................................................................14
Electrical .......................................................................................................................................................................................14
Variable Speed ..............................................................................................................................................................................14
Designing the System....................................................................................................................................................................15
Operang Condions ....................................................................................................................................................................16
Outdoor Unit .................................................................................................................................................................................17
Compressor Heater .......................................................................................................................................................................17
Enertech Recommendaons for All EAV Unit Applicaons ..........................................................................................................17
Secon 4: Outdoor Installaon Consideraons
Introducon ..................................................................................................................................................................................18
Placement .....................................................................................................................................................................................18
Service Area ..................................................................................................................................................................................18
Pipe Connecons ..........................................................................................................................................................................19
Snow Protecon ...........................................................................................................................................................................19
Secon 5: Unit Piping
Water Quality ...............................................................................................................................................................................21
Flow Rates and Piping Sizing .........................................................................................................................................................22
Load Piping ...................................................................................................................................................................................23
Bypass Valve .................................................................................................................................................................................23
Pump Mounng ............................................................................................................................................................................24
Piping Diagrams ............................................................................................................................................................................24
Piping Diagram - Flow Rates and Piping Sizing .............................................................................................................................25
An-Scald Valve Piping Connecons ............................................................................................................................................25
Piping Diagram - Indoor Module ..................................................................................................................................................26
Piping Diagram - Radiant Floor .....................................................................................................................................................27
Piping Diagram - Hydronic Air Handler .........................................................................................................................................28
Flush Cart Design ..........................................................................................................................................................................29
Flushing and Filling System ...........................................................................................................................................................29
Flushing Diagram - Outdoor Unit Heat Exchanger and Piping ......................................................................................................30
Flushing Diagram - Hot Water Tank ..............................................................................................................................................31
Flushing Diagram - Distribuon Zones ..........................................................................................................................................32
Flushing Diagram - Indoor Module ...............................................................................................................................................33
Secon 6: Anfreeze
Anfreeze Overview .....................................................................................................................................................................34
Anfreeze Charging ......................................................................................................................................................................34
Anfreeze Percentages by Volume Table .....................................................................................................................................35
Anfreeze Specic Gravity Table ..................................................................................................................................................35
Monobloc Requirements ..............................................................................................................................................................36
Secon 7: Field Wiring
Introducon ..................................................................................................................................................................................37
Communicaon ............................................................................................................................................................................37
Domesc Water Heang Controls ...............................................................................................................................................38
Space Condioning Controls .........................................................................................................................................................39
Diagram: Heang/Cooling - Radiant - One Fan Coil (fan coil is Enertech MPH series) .................................................................40
Diagram: Heang/Cooling - Mulple Fan Coils - No Radiant (All fan coils are Enertech MPH series) ..........................................41
Diagram: Heang/Cooling - Mulple Fan Coils - No Radiant (at least one fan coil has Y/W inputs)* ..........................................42