1.800.627.4499
16
GR90, EV90, EV90P
ERV
See installation manuals for the control(s) you select for wiring diagrams and specific
instructions.
u
If
NOT
connecting controls to the EV90/P:
Make a jumper out of a short piece of wire. Connect the jumper wire to the screw
connections of the terminal strip on the outside of the unit. ERV runs full-time once its power
cord is plugged in.
OPERATION
4.1 STARTING UP THE UNIT
u
Inspect your installation to be sure all duct work is correctly installed and sealed, that filters
are in place, and controls (if any) are connected.
u
Shut and latch the door to the unit.
u
Provide 115 VAC to the unit. It may start immediately.
u
Use controlm if any, to turn on the unit. Check operation of the control(s).
u
Check that the unit’s safety interlock switch turns off the unit when the door is opened.
4.0 OPERATION
4.2 VERIFYING UNIT PERFORMANCE
4.2.1 Airflow
Airlfow should be occurring in both airstreams. Sometimes the easiest place to confirm that
air is moving is at the external wall caps. If exact airflow is critical, it may be desirable to
permanently install flow measuring stations and manometers. These can also be used to
determine when filters should be cleaned or changed.
4.2.2 Use Static Taps to Measure Airflow Rates
See Differential Static Across Core tables in Section 4.4 on page 19.
4.2.3 Use Damper to Balance Airflow to Desired Rates, if necessary
The ERV's blower motors are well suited for volume control by dampers on the inlet of the unit.
One balancing damper is provided in the unit parts tray.
After measuring the airflow of the unit, the balanced damper may be used to balance airflow
if desired. Place the damper between the duct collar and the unit for the inlet of the airstream
recording higher flow.
Slowly move the damper further into the duct until the desired afirflow is recorded. Secure the
damper in place using 1/8" tek screws (provided).
NOTE: Drilling
through the case
while the unit is
running may cause metal
shards to be drawn into
the unit.
FIGURE 4.2.0 DAMPER INSTALLATION
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support@renewaire.com
NOTE: The unit
is considered
balanced if the
difference between the two
airflows is not more than
10 CFM.
NOTE: Install the
damper so that it
slides in the space
between the duct collars
for the EV90 and the GR90.
Install the damper so that
it slides from the door of
the unit down to the duct
collar for the EV90P.
