11
1. Continous
When the selector switch is in the CONT position the ventilation system will exhaust
stale indoor air to the outside and will introduce fresh outdoor air continuously on low
speed except when there is a request for ventilation by one of the remote controllers
then the ventilation system will exchange at high speed.
(Recommended for maximum
indoor air quality.)
9. MODES OF OPERATIONS
Fresh air to
dwelling
Stale air to
outside
Fresh air from
outside
Stale air from
dwelling
Stale air to
outside
Stale air from
dwelling
Recirculated
air to dwelling
Normal
2a. Evacuation
2b. Recirculation
DEFROST CYCLE TYPES:
2a. Defrost sequence type: Evacuation (Ref. Supply fan shut down)
An automatic defrost sequence is activated at an outdoor measured temperature of
-5°C (23°F) and colder.
During the electronically controlled defrost sequence, the supply motor (incoming air)
shuts down while the exhaust motor continues to run to exhaust distribute warm
ambient air through the core. This eliminates the risk of the HRV core from building up
with ice and freezes.
2b. Optional Defrost Sequence Type: Recirculation (only available with GTDMK
damper module kit)
An automatic defrost sequence is activated at an outdoor measured temperature of
-5°C (23°F) and colder.
During the During the automatic defrost sequence the motorized damper closes the
incoming air port. The exhaust motor shuts down while the supply motor increases
speed and will draw warm ambient air from the 5th port located on the GTDMK damper
module kit.
GTDMK
Summary of Contents for 463300
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