3
MODEL NUMBER NOMENCLATURE AND
DIMENSIONS
See Fig. 1 for 581K***F model number nomenclature. See Fig. 2
for unit dimensional drawings and service clearance dimensions.
Rated Indoor Airflow
Table 1 lists the rated indoor airflow used for the AHRI effi-
ciency rating for the units covered in this document.
WARNING
FIRE HAZARD
Failure to follow this warning could result in severe person-
al injury and/or property damage.
Manifold pressure tap set screw must be tightened and
1
/
8
-
in. NPT pipe plug must be installed to prevent gas leaks.
WARNING
UNIT OPERATION HAZARD
Failure to follow this warning can result in equipment damage.
Do Not adjust the inducer motor. The inducer motor is factory
set; no field adjustment is required.
CAUTION
PERSONAL INJURY HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care
and wear appropriate protective clothing, safety glasses and
gloves when handling parts and servicing air conditioning
equipment.
CAUTION
Units can not operated with LP (liquid propane) gas under any
circumstances.
CAUTION
Units can not operated at altitudes greater than 2,000 feet
under any circumstances.
MANIFOLD GAS VALVE
MANIFOLD
PRESSURE
TAP SET
SCREW
CAUTION
Do not detach the burner box from the heat exchanger panel. If
the burner box must be replaced, refer to the Service and
Maintenance Instructions for the unit.
ATTENTION
A particular air odor may be experienced coming from the flue
discharge during initial gas heating start up. This is normal and
will subside after minimal use.
Table 1 — Rated Indoor Airflow
MODEL NUMBER RATED INDOOR AIRFLOW (CFM)
581K*04F 1200
581K*05F 1400
581K*06F 2000