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6.6 Additional Unit Preparation Considerations
For proper installation the following items must be
considered prior to moving the unit to its installation
site:
•
Important:
When the air handler is located
adjacent to the living area, the system should be
carefully designed with returns which minimize noise
transmission through the return air grill. Although the
air handler is designed with large blowers operating
at moderate speeds, any blower moving a high
volume of air will produce audible noise which could
be objectionable when the unit is located very close
to a living area. It is often advisable to route the
return ducts under the floor or through the attic. Such
design permits the installation of air return remote
from the living area (i.e. central hall).
• Pursuant to Florida Building Code 13-610.2.A.2.1,
this unit meets the criteria for a factory sealed air
handler.
• If a side return is needed for your application, the
side return MUST be installed prior to moving the air
handler to its installation location. Unless two side
returns are used, the Side Return Kit may not be on
the same side as the LV wiring entry point. See the
Side Return Kit # BAYSRKIT100A Installer Guide for
detailed instructions, if used.
• Study the unit’s outline drawing and dimensions prior
to selecting the installation site. Note in advance
which electrical conduit entry points and condensate
drain holes are to be used, so that proper clearance
allowances can be made for installation and future
maintenance.
• Installation of the air handler must be made prior to,
or at the same time as, the installation of the outdoor
unit in order to allow access for refrigerant lines.
• Consider the overall space needed when external
accessories are used, additional height and width
requirements may exist.
• These units are not approved for outdoor installation.
• These units must be installed in the proper air flow
direction.
• Any third-party heater accessories, including
hydronic coils and duct heaters must be downstream
of the unit.
• Note: No atomizing style humidifier is allowed in the
return plenum with the use of this unit.
• Excessive bypass air may cause water blow-off,
which will adversely affect system operation and air
cleaner performance. To verify bypass airflow, follow
the Bypass Humidifier Pre-Installation Checkout
and Set-Up Procedures available through your local
distributor. Ask for publication number 18-CH37D1-*
Steam and Flow-through Fan Power Duct-mounted
Humidifiers. Follow the humidifier installation
instructions. These should only be installed on the
supply air side of the system.
•
Note:
The air handlers have been evaluated in
accordance with the Code of Federal Regulations,
Chapter XX, Part 3280 or the equivalent. “SUITABLE
FOR MOBILE HOME USE.”
•
Note: This unit is certified to UL 1995.
The interior cabinet wall meets the following:
- UL94-5VA Flame Class Listed
- UL723 Steiner Tunnel Listed for 25/50 Flame/
Smoke
- UL746C Listed for Exposure to Ultraviolet Light,
Water Exposure and Immersion
