FloAire PCU Filtration - Manual (Page 6)

6
INSTALLATION
It is imperative that this unit is installed and operated with the designed airflow, filters, exhaust fan
placement, and construction in accordance with this manual. If there are any questions about any items,
please call the service department at 1-866-784-6900 for warranty and technical support issues.
WARNING: DO NOT RAISE PCU BY THE DOOR, FILTER FRAMES, OR UTILITY
CABINET – USE LIFTING LUGS PROVIDED OR A SLING.
Site Preparation
1. Provide clearance around installation site to safely rig and lift equipment into its final position.
Supports must adequately support equipment. Refer to manufacturer’s estimated weights.
2. Consider general service and installation space when locating unit. Allow a minimum of 36
inches of clearance on the filter removal side of the unit to replace filters.
3. Locate unit close to the space it will serve to reduce long, twisted duct runs
4. Support unit above ground or at roof level high enough to prevent precipitation from being drawn
into unit.
5. The PCU is designed to operate in a negative pressure environment. Be sure to install the PCU
between the exhaust fan and hoods. This will also keep the fan cleaner during operation.
6. The PCU drains must be connected to the building grease interceptor or an approved building
drain. Black Iron or Stainless Steel Pipe must be used for this connection. If PCU assembly has
Multiple Modules, the drain line must be 2.5 inch NPT pipe minimum.
7. Determine if adequate room is available to install the PCU assembly and all ductwork with proper
clearance to combustible material. ETL listing for clearance to combustible surfaces to this
PCU unit is 18 in. It is important to check with the local authority having jurisdiction to determine
that the installation method is satisfactory to meet their requirements prior to installation.
Joint Sealant
The joint sealant used to seal all internal joint assemblies is a 3M product. 3M Fire Barrier 2000 +
Silicone Sealant is a ready-to-use, gun-grade, one-component silicone elastomer that cures upon
exposure to atmospheric humidity to form a flexible seal. 3M Fire Barrier 2000 + Silicone Sealant, when
installed properly, will control the spread of fire before, during and after exposure to open flames. It will
stop the spread of noxious gas, smoke and water and maintain the integrity of fire rated assemblies and
construction.
NO SEALANT SUBSTITUTES MAY BE USED.
Sealant Features
1. Superior adhesion.
2. Capable of withstanding 2000 °F + temperatures.
3. Class 25 sealant, per ASTM 920.
4. Re-enterable/repairable.
5. Provides up to 4-hours fire-rating.
6. Cures upon exposure to atmospheric humidity.
7. Working time 30 minutes.
8. Cure time 14 to 21 days.
9. Applied with a standard caulk gun.