(Mar, 2012)
Compact CWE Series Installation, Operation & Maintenance Manual
Air Technology Systems, Inc.
1-3
1.4 Safety
1.4.1 General
Stulz Air Technology Systems, Inc. uses
NOTES
along with
CAUTION
and
WARNING
symbols
throughout this manual to draw your attention to im-
portant operational and safety information.
A bold text
NOTE
marks a short message in the infor-
mation to alert you to an important detail.
A bold text
CAUTION
safety alert appears with infor-
mation that is important for protecting your equipment
and performance. Be especially careful to read and
follow all cautions that apply to your application.
A bold text
WARNING
safety alert appears with infor-
mation that is important for protecting you from harm
and the equipment from damage. Pay very close at-
tention to all warnings that apply to your application.
A safety alert symbol
accompanies a general
WARNING
or
CAUTION
safety statement.
A safety alert symbol
accompanies an electrical
shock hazard
WARNING
or
CAUTION
safety state-
ment.
1.4.2 Safety Summary
The following statements are general guidelines fol-
lowed by warnings and cautions applicable through-
out the manual.
Prior to performing any installation, operation,
maintenance or troubleshooting procedure, read and
understand all instructions, recommendations and
guidelines contained within this manual.
WARNING
All personnel working on or near equipment
should be familiar with hazards associated with
electrical maintenance. Safety placards/stickers
have been placed on the unit to call attention
to all personal and equipment damage hazard
areas. Never work on electrical equipment
unless another person who is familiar with the
operation and hazards of the equipment and
competent in administering fi rst aid is nearby.
WARNING
This equipment should be serviced and re-
paired by a journeyman or a qualifi ed refrigera-
tion technician only.
WARNING
To prevent personal injury, stay clear of rotating
components as automatic controls may start
them unexpectedly. Turn off power to the unit
unless you are performing tests that require
power. With power and controls energized, the
unit could begin operating at any time.
WARNING
When working on electrical equipment, remove
all jewelry, watches, rings, etc.
WARNING
Hazardous voltage will still be present inside
the electric box at the motor start protectors
and circuit breakers, even with the unit turned
off at the microprocessor controller. To isolate
the unit for maintenance, turn off power at the
main power disconnect switch.
WARNING
Always disconnect the main power supply to
the equipment at the main power disconnect
switch before beginning work on the equipment.
A lock-out tag-out procedure should be fol-
lowed to ensure that power is not inadvertently
reconnected.
CAUTION
When the air conditioner is in the cooling mode,
the return air-intake and discharge (supply)
must be free of obstructions. Ensure panels
are secure and latched into position.
WARNING
Never operate the unit with any cover, guard,
screen panel, etc. removed unless the instruc-
tions specifi cally state otherwise, then do so
with extreme caution to avoid personal injury.
