SystemAir fantech ECHO 2800Xi Series, Инструкция по установке, эксплуатации и обслуживанию, Страница: 5 / 19

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Installation examples
It is the responsibility of the installer to ensure all ductwork is sized and installed as designed to ensure the system will perform as intended. The
amount of air (CFM) that an HRV/ERV will deliver is directly related to the total external static pressure (E.S.P.) of the system. Static pressure is a
measure of resistance imposed on the blower by length of duct work/number of fittings used in duct work, duct heater etc.
• Stale air drawn from areas of contamination
• Fresh air supplied to main areas
• HRV/ERV airflow should be balanced
• External heating or cooling coil may be needed if air is not able to mix comfortably.
SUPPLY IN
EXHAUST OUT
HRV UNIT
SUPPLY DUCT
RETURN AIR DUCT
EXHAUST AIR TO HRV UNIT
AIR HANDLING UNIT
(heating / cooling)
SUPPLY IN
SUPPLY IN
EXHAUST OUT
HRV UNIT
SUPPLY IN
• Stale air drawn from areas of contamination
• Fresh air supplied to return of air handler
• Air Handler blower may need to operate when call for ventilation
• HRV/ERV airflow should be balanced
* Drawings are illustrations only and actual port locations and airflow directions may vary, consult unit spec sheets.
* The BPM might need to be ducted depending on location of the installation.
Fully Dedicated System
Partially Dedicated System (Direct Connection)
Weather hoods, louvers, ducts and dampers (Cont'd)
Dampers are strongly recommended on both the supply & exhaust airstreams for proper unit operation and are often required to conform to regional
requirements for ventilation systems. Dampers prevent unconditioned air infiltrating the space when the unit is stopped or during the exchanger
defrost sequence. The outdoor air and exhaust air dampers should be fitted, fastened and sealed to the ducts with proper duct sealant to minimize air
leakage.
Dampers fitted to the ductwork connecting the unit to the outside weather hoods should be adequately insulated in order to prevent any formation of
condensate on the outside surface.
The unit control has dedicated 24VAC digital outputs to energize both the outdoor air damper and the exhaust air damper. See the “Wiring the
dampers & the BPM module actuators” section for more information on wiring the damper actuators.
Weather hoods, louvers, ducts and dampers should be designed and installed in accordance with the local building code that is in effect. In
the absence of such requirements, it is recommended to check with local authorities having jurisdiction in your area prior to installing this
product. It is also recommended to follow best practice guides such as ANSI/ASHRAE 62.1 IAQ standard
SUPPLY IN
EXHAUST OUT
HRV UNIT
SUPPLY DUCT
EXHAUST AIR TO HRV UNIT
12" BREATHER SPACE
CEILING RETURN AIR PLENUM
AIR HANDLING UNIT
(heating / cooling)
SUPPLY IN
Partially Dedicated System (Indirect Connections)
Installation examples (Cont'd) Installation (Cont'd)
It is the responsibility of the installer to ensure all ductwork is sized and installed as designed to ensure the system will perform as intended. The
amount of air (CFM) that an HRV/ERV will deliver is directly related to the total external static pressure (E.S.P.) of the system. Static pressure is a
measure of resistance imposed on the blower by length of duct work/number of fittings used in duct work, duct heater etc.
* Drawings are illustrations only and actual port locations and airflow directions may vary, consult unit spec sheets.
* The BPM might need to be ducted depending on location of the installation.
• Stale air drawn from areas of contamination
• Fresh air supplied into ceiling return air plenum or grille
• HRV/ERV airflow should be balanced