INSTALLATION EXAMPLES
10
Magnehelic
Magnehelic
Gauge
Duct
Air
Flow
Pitot
Tube
A
The duct’s airflow veloc-
ity is generally meas-
ured with a magnehelic
gauge and a pitot tube.
• To avoid airflow turbu-
lence and incorrect
readings, the airflow
velocity should be meas-
ured on steel ducting a
minimum of 3 duct
cross-section from the
unit or elbow and before
any transition.
• The balancing procedure consists of measuring the exhaust air leaving the system and the supply air entering the system and
ensuring that these two are equal. A deviation of 10% or less is acceptable.
AIR FLOW BALANCING
A
*
Pitot tube and gauge
Note:
A professional air balancer should be contacted to commission the system properly.
A skilled HVAC Tech may complete the balance of air providing they possess the proper
equipment. Call Fantech Technical support for assistance.
INSTALLING BYPASS MODULE (BPM)
REFER TO BPM INSTALLATION, OPERATION AND MAINTENANCE
DOCUMENT FOR INSTRUCTIONS
INTERIOR WALL
EXTERIOR WALL
EXTERIOR WALL
POOL HRV
MECHANICAL ROOM
EXTERIOR WALL
RECIRCULATION
BACKDRAFT DAMPER
MDH1 Control
EDF1R Control
INTERIOR WALL
EXTERIOR WALL
EXTERIOR WALL
POOL HRV
EXTERIOR WALL
RECIRCULATION
BACKDRAFT DAMPER
RETURN
GRILL
MDH1 Control
EDF1R Control
MECHANICAL ROOM
Installation with Grille
Summary of Contents for SHR 14105R
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