Download Print this page

Circulating Air Blower - Maytag POF1HD140AVFA Installation, Operation And Maintenance Manual

Oil fired warm air furnaces, up-flow model with ecm
Hide thumbs

Advertisement

19. CIRCULATING AIR BLOWER

(POF1HD140AVFAand POF1HD091AVFA)
The POF1HD140AVFA and POF1HD091AVFA furnace
models are equipped with direct drive blower systems.
POF1HD140AVFA and POF1HD091AVFA models are
equipped with electronically commutated motors (ECM).
Direct drive blower speed adjustments are not normally
required in properly sized extended plenum duct
systems. The motor RPM and air CFM delivery will vary
automatically to accommodate conditions within the
usual range of external static pressures typical of
residential duct systems. Under-sized duct systems may
require a higher blower speed to obtain a reasonable
system temperature rise. Some older duct systems were
not designed to provide static pressure. They typically
feature special reducing fittings at each branch run and
lack block ends on the trunk ducts. These systems may
require modification to provide some resistance to the
airflow to prevent over-amping of the direct drive blower
motor.
DISCONNECT THE POWER SUPPLY TO THE
FURNACE BEFORE OPENING THE BLOWER
ACCESS DOOR TO SERVICE THE AIR FILTER,
FAN AND MOTOR. FAILURE TO SHUT OFF
POWER COULD ALLOW THE BLOWER TO
START UNEXPECTEDLY, CREATING A RISK OF
DEATH OR PERSONAL INJURY.
19b. CIRCULATING AIR BLOWER
(POF1HD140AVFA and POF1HD091AVFA)
(See Section 22 Page 9)
7

Advertisement

loading

  Related Manuals for Maytag POF1HD140AVFA

This manual is also suitable for:

Pof1hd091avfa