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Applicable to all model numbers.
Defrost Mode 1
Applicable to model numbers:
• HRV-150
• HRV-210
Defrost Mode 2
Applicable to model numbers:
• ERV-150
• ERV-210
4.1 AIR DISTRIBUTION (NORMAL OPERATION)
4.2 A
IR DISTRIBUTION (DEFROST MODE)
4.0 Technical Data
VF0013
FRESH AIR
FROM
OUTSIDE
STALE AIR
FROM
BUILDING
STALE AIR
TO OUTSIDE
FRESH AIR
TO BUILDING
VF0012
STALE AIR
FROM
BUILDING
STALE AIR
TO OUTSIDE
FRESH AIR TO
BUILDING
VF0020
STALE AIR
FROM
BUILDING
FRESH AIR
TO BUILDING
For defrost cycles tables, refer to Section 9.0, Wiring Diagram.