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WARNING
Failure to follow this warning could result in personal
injury or death.
Disconnect gas piping from unit when leak testing at pres-
sure greater than 0.5 psig (3450 Pa). Pressures greater than
0.5 psig (3450 Pa) will cause gas valve damage resulting in
hazardous condition. If gas valve is subjected to pressure
greater than 0.5 psig (3450 Pa), it must be replaced before
use. When pressure testing field-supplied gas piping at
pressures of 0.5 psig (3450 Pa) or less, a unit connected to
such piping must be isolated by closing the manual gas
valve.
WARNING
Failure to follow this warning could cause personal injury,
death and/or equipment damage.
Puron
®
(R-410A) refrigerant systems operate at higher
pressures than standard R-22 systems. Do not use R-22 ser-
vice equipment or components on Puron refrigerant equip-
ment.
WARNING
Failure to follow this warning could cause personal injury
or death.
Relieve pressure and recover all refrigerant before system
repair or final unit disposal. Wear safety glasses and gloves
when handling refrigerants. Keep torches and other igni-
tion sources away from refrigerants and oils.
CAUTION
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.
FIRE HAZARD
Failure to follow this warning could result in personal
injury, death, and/or property damage.
Inlet pressure tap set screw must be tightened and
pipe plug must be installed to prevent gas leaks.
GAS VALVE
INLET PRESSURE
TAP SET SCREW
FIRE HAZARD
Failure to follow this warning could result in personal
injury, death, and/or property damage.
Manifold pressure tap set screw must be tightened and
1
/
in. NPT pipe plug must be installed to prevent gas leaks.
8
MANIFOLD PRESSURE
TAP SET SCREW
MANIFOLD
Rated Indoor Airflow (cfm) —
indoor airflow used for the AHRI efficiency rating for the
units covered in this document.
Table 1 — Rated Indoor Airflow
MODEL NUMBER
581J*A/B/F04
581J*A/B/F05
581J*A/B/F06
Pre-Installation —
Complete the following checks before
installation.
1. Consult local building codes and the NEC (National
Electrical Code) ANSI/NFPA 70 for special installa-
tion requirements.
2. Determine unit location (from project plans) or select unit
location.
Check for possible overhead obstructions which may inter-
fere with unit lifting or rigging.
For model number nomenclature see Fig. 1. For unit dimen-
sions and service clearances see Fig. 2-4.
2
WARNING
1
/
in. NPT
8
WARNING
GAS VALVE
Table 1 lists the rated
FULL LOAD AIRFLOW (CFM)
1050
1400
1625
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