Daikin AVS - Default Chapter; Table of Contents

IM 817-4 Page 3 of 60
Table of Contents
Nomenclature
Model AV Ceiling Unit Ventilator Data Plate Details ........................4
Data Plate Location .........................................................................5
Receiving & Handling
Visible Loss or Damage ...................................................................5
Concealed Loss or Damage ............................................................ 5
Storage ............................................................................................ 5
Lifting Unit .......................................................................................5
Pre-Installation Information
Safety ...........................................................................................5-6
Pre-Installation Considerations
Properly Identify Unit Ventilator(s) ................................................... 6
Uncrate and Inspect the Unit Ventilator(s) .......................................6
Wall Openings, Louvers, and VentiMatic Shutter ............................6
VentiMatic Shutter Assembly ........................................................... 6
Table 1 - Approximate Shipping Weights, Physical Data ................. 6
Installing Louvers .............................................................7-11
Louver Details .................................................................................7
Louver Installations with Typical Unit Congurations
Unit Conguration - Type AL ............................................................8
Unit Conguration - Type AN ........................................................... 9
Unit Conguration - Type AK ...........................................................9
Unit Conguration - Type AP ...........................................................9
Typical Installation Methods .....................................................10-11
Installing the VentiMatic Shutter ...................................11-12
Before Setting the Unit in Place
Removing Unit from Skid ...............................................................12
Mounting Holes, Piping and Electrical Knockout
Locations & Dimensions ................................................................ 12
Drain Pan Adjustment
Procedure ...................................................................................... 13
Typical Floor Unit Installation ............................................14
Typical VentiMatic Shutter & Draftstop Installation
.........14
Unit Ventilator Installation
..................................................15
Making Piping Connections
For All Systems .............................................................................15
Water Coil Connections ................................................................. 16
2-pipe Chilled Water/Hot Water Systems ......................................16
After Brazing ..................................................................................16
For Water Systems ........................................................................ 16
Coil Headers, Locations
Heating Only ..................................................................................17
Cooling Only .................................................................................. 17
Chilled Water & Heating Coils .......................................................17
Direct Expansion Coils & Heating Coils ........................................19
Reheat ........................................................................................... 19
Typical Valve Packages
Face and Bypass - MicroTech II
2-way and 3-way End-of-Cycle Valves .......................................... 20
2-way and 3-way Modulating Valves – MicroTech II ......................21
Modulating Valve Specications – MicroTech II.............................22
Steam Modulating Valve Selection – MicroTech II.........................23
Hot Water and Chilled Water Valve Selection – MicroTech II ........23
Typical Piping Arrangements
Heating – Hot Water End of Cycle Valve Piping ............................ 24
Cooling – Chilled Water End of Cycle Valve Piping .......................24
Typical Water Coil Piping–EOC Valve Piping ................................25
Steam–Typical Modulating Valve Piping........................................25
For Steam Systems
The optional factory-supplied Daikin MicroTech II Modulating
Control Valve .............................................................................26
Typical Steam Coil Piping ..............................................................26
Heating–Modulating Valve Piping
Hot Water (or 2-pipe CW/HW) Modulating Valve Piping ...............27
2-way Modulating, Normally Open, Hot Water or 2-pipe CW/HW
Valve Piping (typical) .................................................................27
3-way Modulating, Normally Open, Hot Water or 2-pipe CW/HW
Valve Piping (typical) .................................................................27
Cooling–Chilled Water Modulating Valve Piping
2-way Modulating, Normally Closed, Chilled Water Valve Piping
(typical) ...................................................................................... 28
3-way Modulating, Normally Closed, Chilled Water Valve Piping
(typical) ...................................................................................... 28
Condensate Piping ..............................................................29
Direct Expansion (DX) R-22 Piping ...............................................29
Unit Ventilator Split Systems Guidelines ..........................30
Checking System Charge ..............................................................31
Determining Subcooling ................................................................31
Determining System Superheat ....................................................32
Superheat Adjustment ...................................................................32
Making Control Connections
MicroTech II Unit Mounted DDC Control Components–Models AVS,
AVV, and AVR .......................................................................33-35
Economizer Control Capabilities ...................................................35
Economizer for Reheat ..................................................................35
Local User Interface ......................................................................35
Operating Mode States (4) ............................................................35
Fan States (4) ................................................................................35
Occupancy Modes (4) ...................................................................35
MicroTech II Wiring Diagram–Typical ...........................................36
MicroTech II Unit Electrical Connections ......................................37
Procedure ...................................................................................... 37
MicroTech II Remote Wall Mounted Sensor ..................................38
Field Wiring Remote Mounted Temperature Sensor .....................39
Installing the Remote Mounted Temperature Sensor ...............39-41
Digital Ready™–Face & Bypass Control Components
Model AVS ..................................................................................... 42
Digital Ready Wiring Diagram–Typical ..........................................43
Digital Ready Unit Mounted Temperature Sensor
Specications ................................................................................44
Digital Ready–Damper Actuator Specications
Outdoor Air/Return Air Damper Actuator .......................................44
Face & Bypass Damper Actuator ..................................................44
Digital Ready Unit Electrical Connections
Procedure ...................................................................................... 45
Controls by Others Components ................................................... 46
Controls by Others Wiring Diagram–Typical .................................47
Controls by Others–Electrical Connections
Procedure ...................................................................................... 48
Electric Heat Wiring Diagram–Typical ...........................................49
Electric Heating–Standard Motor Capacities, Amps, Wire Sizing,
and Over Current Protection .....................................................50
Electric Heating–High Static Applications Capacities, Amps, Wire
Sizing, and Over Current Protection ..........................................51
Cabinets
Draftstop™ System/Window Down-draft Installation ................ 52-54
Installing Unit Ventilator End Panels ........................................54-55
Prepare Unit Ventilator for Start-up ...................................55
Oiling the Fan Shaft Bearing .........................................................55
Filter(s) .................................................................................56
Complete Check, Test and Start Procedure
......................56
Installer’s Responsibility
Protect your investment - read carefully ....................................... 56