Robertshaw SER Serie Manual De Instalación, Operación Y Mantenimiento página 11

INSTALLING DUCTS TO / FROM INSIDE
Exhaust Air Ducting
The stale air exhaust system is used to draw air from the points in the house where the worst air quality problems occur. It is rec-
ommended that return air ducts be installed in the bathroom, kitchen, and laundry room. The furnace or air handler return duct may
be also used to exhaust from. In this method, the exhaust air is not ducted back from bathrooms, kitchens, etc to the ERV with
"dedicated lines".
PRACTICAL TIPS
• Choose the location for
your Supply and
Exhaust Grilles -
Robertshaw MGE
(metal) or PGE (plastic).
The Supply Grilles
should be located in
every habitable room
and the Exhaust Grilles
should be located in the
wet rooms.
• A piece of flexible
ducting should be
placed between the
Supply Air In and Out
collar of the ERV and
the rigid ducting to
absorb any noise or
vibrations.
• For proper network
of ducting, see TYPES OF
INSTALLATIONS.
• The Grilles are to be
installed on the ceiling
or on the wall 6" (152
mm) to 12" (305 mm)
from the ceiling.
Attic or Garage Installation
1 Begin with the duct collar marked "Exhaust Air In". Slide a short piece
(12") of flexible duct over the duct collar. Using duct tape, tape the
flexible duct to the collar. Run the flexible ducting to the main rigid duct
trunk line, which connects to the remainder of the ducts going to and
from rooms in the house. Repeat the steps for the "Supply Air Out" on the
side of the ERV.
2 Working from a closet, attic or inside your joist wall, run the length of
ducting required for the proper grille location and cut a hole in the
drywall. Fasten the mounting collar (optional) to the ducting and fasten
the collar to the wall or ceiling with screws.
3 The Robertshaw grille - MGE (metal) or PGE (plastic) - airflow can be
adjusted by rotating the inside unit. It is recommended that the grilles be
completely opened at first and then adjusted later as needed.
4 Push the Robertshaw grille - MGE (metal) or PGE (plastic) - into the
optional mounting collar or directly into installed elbow.
(CONT'D)
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