Carrier 558J Series Service And Maintenance Instructions page 2

WARNING
!
FIRE, EXPLOSION HAZARD
Never use air or gases containing oxygen for leak
testing or for operating refrigerant compressors.
Pressurized mixtures of air or gases containing
oxygen can lead to an explosion.
WARNING
!
FIRE, EXPLOSION HAZARD
Never use non−certified refrigerants in this product.
Non−certified refrigerant could contain contaminant
that could lead to unsafe operating conditions. Use
ONLY refrigerants that conform to AHRI Standard
700.
WARNING
!
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury, death and/or equipment damage.
This system uses PuronR refrigerant which has
higher pressures than R−22 and other refrigerants. No
other refrigerant may be used in this system. Gauge
set, hoses, and recovery system must be designed to
handle Puron refrigerant. If unsure about equipment,
consult the equipment manufacturer.
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution can result in reduced
unit performance or unit shutdown.
High velocity water from a pressure washer, garden
hose, or compressed air should never be used to clean
a coil. The force of the water or air jet will bend the
fin edges and increase airside pressure drop.
Failure to follow this
warning could result in
death, personal personal
injury and/or property
damage.
Failure to follow this
warning could result in
death, personal personal
injury and/or property
damage.
NOTICE
OPERATIONAL TEST ALERT
Failure to follow this ALERT could result in an
unnecessary evacuation of the facility.
Pressing the controller's test/reset switch for longer
than seven seconds will put the duct detector into the
alarm state and activate all automatic alarm responses.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal
injury or death.
Before performing service or maintenance operations
on the fan system, shut off all unit power and
Lockout/Tagout the unit disconnect switch. DO NOT
reach into the fan section with power still applied to
the unit.
WARNING
!
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Units with convenience outlet circuits may use
multiple disconnects. Check the convenience outlet
for power status before opening the unit for service.
Locate its disconnect switch, if appropriate, and open
it. Lockout/Tagout this switch if necessary.
IMPORTANT: Lockout/Tagout is a term used when
electrical power switches are physically locked,
preventing power to the unit. A placard is placed on
the power switch, alerting personnel that the power is
disconnected.
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