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air streams remain separate (no cross-contamination) thereby ensuring that
the fresh air is not exposed to the potential contaminants and humidity in the
exhausted air stream.
Energy Recovery Core (summer core)
The Summer Core not only conditions the incoming air but also transfers
moisture contained in the incoming fresh air to the exhausting stale air. This
benefit reduces the cooling load on the air conditioning system.
Safety Door Switch
The HRV safety switch is activated when the main front door is fully closed.
When the front access door is opened electrical power is disconnected to the
HRV main control board disabling all functions of the HRV.
Internal Dehumidistat
Indoor relative humidity (RH) is monitored continuously by the internal
dehumidistat during fan on cycles. By rotating the dial on the front of the HRV
you can select the desired level of indoor humidity. Range of operation is
approximately 20% to 80%. Should the level of RH exceed the level selected
then the HRV will automatically switch to high speed until the indoor RH
drops below the level selected. The HRV fan must be on for the dehumidistat
to function correctly. Note that during the summer months when the outdoor
humidity may be at elevated levels, all dehumidistats must be turned to the off
position to prevent the HRV from running on high speed continuously. Indoor
humidity will only be reduced when outdoor relative humidity is lower ie.
during the heating season.
Damper Door
This damper door is operated automatically by the main HRV control should
the outdoor air temperature entering the HRV fall below 26°F (-3°C). When
activated, this damper closes off the stale exhaust port within the HRV and
opens the internal defrost port. The defrost cycle is approximately 5 minutes
in duration, followed by a ventilation cycle of approximately 30 minutes. This
cycle repeats until the outdoor air temperature entering the HRV rises above
-3°C (26°F). During the defrost cycle it is not unusual to see water condensate
dripping through the drain lines.
Do not attempt to reposition this damper, as permanent damage to the
damper motor will result.
Summary of Contents for SHRV 100T
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