Install Instructions

Optional duct configuration for models: 195DCS, 195ECM, and 300DCS
Ducting configuration results in recirculating defrost.
Duct Configuration:
Outdoors
Stale Air
From House
From Outside
Recycled Air to
House (defrost
mode only)
HRV in Defrost Mode
Spring Loaded
Backdraft
Damper
Standard "Tee"
Fitting
To Outside
 Use this ducting configuration to make a non-recirculating defrost unit operate as a reciculating defrost unit.
Attention
7
NOTE: DIP switch 2 set to "ON"
position to activate recirculation if
this configuration is applied.