Table of Contents
Advertisement
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical
shock or other conditions which may cause personal
injury or property damage. Consult a qualified installer,
service agency, or your distributor or branch for
information or assistance. The qualified installer or
agency must use factory- - authorized kits or accessories
when modifying this product. Refer to the individual
instructions packaged with the kits or accessories when
installing.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloths for brazing operations and
have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions attached to
the unit. Consult local building codes and appropriate
national electrical codes (in USA, ANSI/NFPA 70,
National Electrical Code (NEC); in Canada, CSA C22.1)
for special requirements.
It is important to recognize safety information. This is the
safety- - alert symbol
. When you see this symbol on the
unit and in instructions or manuals, be alert to the
potential for personal injury.
. . . . . . . . . . . . . . . . .
. . . . . . . . .
. . . . . . .
. . . . . . . . . . . .
. . . . . . . . . . . . .
2
. . . . . . . . . . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .
. . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
37
Understand the signal words DANGER, WARNING,
CAUTION, and NOTE. These words are used with the
37
safety- - alert symbol. DANGER identifies the most serious
37
hazards which will result in severe personal injury or
38
death. WARNING signifies hazards which could result in
personal injury or death. CAUTION is used to identify
41
unsafe practices, which may result in minor personal
41
injury or product and property damage. NOTE is used to
42
highlight suggestions which will result in enhanced
installation, reliability, or operation.
42
42
!
43
43
ELECTRICAL SHOCK HAZARD
44
Failure to follow this warning could cause personal
injury or death.
45
Before performing service or maintenance operations
45
on unit, turn off main power switch to unit and install
46
lock(s) and lockout tag(s). Ensure electrical service to
rooftop unit agrees with voltage and amperage listed
46
on the unit rating plate. Unit may have more than one
47
power switch.
47
48
!
48
48
UNIT OPERATION AND SAFETY HAZARD
49
Failure to follow this warning could cause personal
50
injury, death and/or equipment damage.
50
Puronr (R- - 410A) refrigerant systems operate at
higher pressures than standard R- - 22 systems. Do not
51
use R- - 22 service equipment or components on Puron
55
refrigerant equipment.
!
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause personal
injury or death.
Relieve pressure and recover all refrigerant before
system repair or final unit disposal.
Ware safety glasses and gloves when handling
refrigerants. Keep torches and other ignition sources
away from refrigerants and oils.
!
CUT 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.
2
WARNING
WARNING
WARNING
CAUTION
Advertisement
Table of Contents
Troubleshooting
