C
ontents
Nomenclature.......................................................................3
Safety Information ...............................................................5
Models AHF, AHB, AHV and AHR .....................................5
Safety Information.............................................................5
Inspection and Storage .....................................................5
Pre-Installation Considerations .........................................6
VentiMatic
Shutter Assembly ...................................................7
Typical Discharge Air Arrangements .................................7
36" Deep Unit (750 to 1500 CFM) ....................................7
40" Deep Unit (750 to 2000 CFM) ....................................7
40" Deep Unit (750 to 2000 CFM) ....................................8
Intake Air Arrangements .....................................................9
Intake Air Knockouts .........................................................9
Vertical Outdoor Air (Top) Intake Duct Collar Installation 10
Horizontal Outdoor Air (Upper) Intake Duct Collar
Installation.......................................................................10
Horizontal Room Air (Lower) Intake Duct Collar
Installation.......................................................................11
Horizontal Room Air (Lower) Intake and Horizontal Outdoor
Air (Upper) Intake Duct Collars Installation.....................11
Duct System Considerations............................................12
Installing Louvers ..............................................................14
Typical Installation Methods............................................15
Installing the VentiMatic Shutter Assembly ....................16
Unit Ventilator Installation ................................................18
Tools Required ................................................................18
Lifting The Unit Into Position ...........................................19
Anchoring The Ceiling Unit Ventilator .............................20
Making Piping Connections ............................................21
Coil Connection Locations ..............................................23
Typical Valve Packages .....................................................28
Steam Modulating Valve Selection .................................34
Typical Piping Arrangements ..........................................35
Split Systems Guidelines..................................................41
Making Control Connections ............................................44
Unit Mounted Direct Digital Control (DDC)
Components – Models AHF, AHV, and AHR ..................44
MicroTech Unit Electrical Connections ...........................49
Digital Ready™ – Face & Bypass Control Components
Model AHF .....................................................................53
Digital Ready™ Wiring Diagram .....................................54
Digital Ready – Unit Mounted .........................................55
Temperature Sensor Specifications ................................55
Digital Ready Unit Electrical Connections ......................56
Controls by Others Components ....................................57
Typical Controls by Others Wiring Diagram – Units with EC
Motor Variable Airflow .....................................................60
Typical Controls by Others Wiring Diagram - 3-Speed EC
Motor ...............................................................................61
Controls by Others – Electrical Connections ..................62
Unit Ventilator(s) Start-up .................................................65
Oiling the Fan Shaft End Bearing ...................................65
Start-up Procedure .........................................................65
Filter Access and Removal .............................................65
Install Unit Ventilator End Panels....................................66
Complete Check, Test and Start Procedure ..................66
Installer/Owner’s Responsibility ......................................66
IM 830-6
2
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