40
AIRFLOW BALANCING USING THE DOOR PORTS
(AVAILABLE ON SELECTED MODELS)
Applicable Units:
HRV5−150, HRV5-200-TPD, HRV3−150−TPD, HRV6-HEX095-TPD,
HRV5-270-TPD-ECM, ERV5-150-TPD and ERV5-175-TPD)
Door balancing ports for the above reference models are
designed to be used in conjunction with a Magnehelic
Gauge or Digital Manometer to measure the stale and fresh
air-flows for balancing.
NOTE: Door port balancing requires the Magnehelic gauge
or Digital Manometer pressure measurement scale
to match the pressure range in the airflow balancing
chart for the model of ERV or HRV being balance.
Refer to “” on page 41.
Balancing Procedure
1.
Prepare the airflow measuring device (Magnehelic
Gauge or Digital Manometer) by connecting the hoses
to the low and high pressure side of the gauge.
2.
Insert the hoses into the rubber fittings from the optional
Door Port Gauge Tube Set (Y2207). Use light pressure
and rotate until fitting is snug. Do not extend the hose
past the rubber fitting.
3.
Open the HRV Door. Remove the four Door Port Covers
by carefully pushing them out from the back side of the
door (use the blunt end of a large drill bit etc.).
4.
Close the HRV Door. Initiate power and operate the
HRV on high speed. Operate the forced air system on
high speed (if the HRV is connected to the forced air
system).
5.
Measure Stale Air Insert the two rubber fittings from the
gauge to the STALE AIR Balancing Ports (see Figure
51 on page 40). Seal the FRESH AIR Balancing
Ports (upper left and lower right) with tape. Record your
reading.
6.
Measure Fresh air insert the two rubber fittings from the
gauge to the FRESH AIR Balancing Ports (see Figure
50 on page 40). Seal the STALE AIR Balancing Ports
(upper right and lower left) with tape. Record your
reading.
7.
Refer to the “” on page 41 for your model and
determine the FRESH AIR and STALE AIR flow rates.
8.
Damper down the higher airflow and repeat Steps 5 to 7
as required until both airflows are identical (balanced).
9.
Remove the tape and rubber fittings and reinstall the
four Door Port Covers.
G auge connected
to Fresh Air
Balancing P orts
−
200−
Gauge connected
to Fresh Air
Balancing Ports
HRV6-HEX095-TPD
HRV5-270-TPD-ECM
ERV5-150-TPD
ERV5-175-TPD
Figure 50. Door Balancing Ports - Fresh Air
Gauge connected
to Stale Air
Balancing Ports
Gauge connected
to Stale Air
Balancing Ports
HRV6-HEX095-TPD
HRV5-270-TPD-ECM
ERV5-150-TPD
ERV5-175-TPD
Figure 51. Door Balancing Ports - Stale Air
Summary of Contents for ERV5-130
Page 36: ...36 Figure 43 Wiring Diagram HRV5 270 TPD ECM...
Page 60: ...60...
