Install Instructions

Table of Contents
Location ...................................................................................................................................... 2
Pre-Installation Notes ................................................................................................................... 3
Simplified Installation (Return/Return Method) ................................................................................ 4
Partially Dedicated System ............................................................................................................ 5
Fully Dedicated System ................................................................................................................. 6
Hanging Straps ............................................................................................................................ 8
Drain Connection ......................................................................................................................... 9
Grilles ........................................................................................................................................10
Grille Fittings .............................................................................................................................. 11
Lifebreath Weatherhood and Weatherhood Requirements .............................................................. 12
Dual Hood ................................................................................................................................... 13
Main Control Installation .............................................................................................................. 14
Mechanical Timers Installation ...................................................................................................... 15
Installation and Operation of Wireless 20/40/60 Minute Timers: 99-DET02...................... ................. 16
Installer Selectable High Speed Settings ....................................................................................... 17
Balancing the Airflows ................................................................................................................. 20
Determining the CFM ................................................................................................................... 21
Balancing Collar Instructions ........................................................................................................ 21
Balancing the Airflows with a Pitot Tube ....................................................................................... 22
Balancing the Airflow Using the Door Ports ................................................................................... 23
Troubleshooting .......................................................................................................................... 26
Location - Installation Notes
Install the unit in a heated space that provides clearance for service access. A typical location is in
either a mechanical room or an area close to the outside wall within close proximity to where the
weatherhoods are mounted. If a basement area is inconvenient or non-existent, install the unit in a
utility room or laundry room.
Attic installations are not recommended due to
 The complexity of work to install
 Freezing conditions in the attic
 Difficulty of access for servicing and cleaning
If attic installation is necessary the unit must be situated in a conditioned space.
Leave sufficient clearance at the front of the access door for servicing the air filters and core. The
recommended clearance is a minimum of 25 in (635 mm) for opening and closing the door. Airia
provides four straps for hanging the unit from the basement floor joists.
2
Installation and Pairing of Repeaters: 99-RX02.............................................................. ................. 17
Installation and Operation of 20/40/60 Minute Timer: 99-DET01 .................................... ................. 18
Mounting the RNC4-TPF and RNC4-TPD Units................................................................................. 7
Dimensional Model Drawings - RNC4-TPD/RNC4-TPF Models ........................................................... 19
Airflow Reference Chart - RNC4-TPD............................................................................................. 24
Airflow Reference Chart - RNC4-TPF..............................................................................................25