Carrier AERO 39MN Installation, Start-Up And Service Instructions Manual page 4

WARNING
CHECK the assembly and component weights to be sure
that the rigging equipment can handle them safely. Note
also the centers of gravity and any specific rigging
instructions.
PROTECT adjacent flammable material when welding or
flame cutting. Have a fire extinguisher at hand and ready
for immediate use.
Failure to follow these safety precautions could lead to
severe personal injury and/or equipment damage.
WARNING
DO NOT remove access panel fasteners until fan is
completely stopped.
Pressure developed by a moving fan can cause excessive
force against the panel and toward personnel.
Failure to heed this warning could lead to personal injury
and/or equipment damage.
CAUTION
DO NOT ground equipment to fan assembly when
welding. Damage to fan bearings could result.
DO NOT restore power to unit until all temporary
walkways inside components have been removed.
NEVER pressurize equipment in excess of specified test
pressures.
Failure to follow these safety precautions could lead to
equipment damage.
WARNING
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and gog-
gles and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from sys-
tem using both high-pressure and low pressure ports.
c. Traces of vapor should be displaced with nitrogen
and the work area should be well ventilated. Refrig-
erant in contact with an open flame produces toxic
gases.
d. Cut component connection tubing with tubing cutter
and remove component from unit. Use a pan to catch
any oil that may come out of the lines and as a gage
for how much oil to add to the system.
e. Carefully unsweat remaining tubing stubs when nec-
essary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal
injury or death.
1. Improper installation, adjustment, alteration, service,
or maintenance can cause property damage, personal
injury, or loss of life. Refer to the User's Information
Manual provided with this unit for more details.
2. Do not store or use gasoline or other flammable va-
pors and liquids in the vicinity of this or any other
appliance.
What to do if you smell gas:
1. DO NOT try to light any appliance.
2. DO NOT touch any electrical switch, or use any phone
in your building.
3. IMMEDIATELY call your gas supplier from a neigh-
bor's phone. Follow the gas supplier's instructions.
If you cannot reach your gas supplier call the fire
department.
IMPORTANT: The installation of air-handling units and
all associated components, parts, and accessories which
make up the installation and subsequent maintenance shall
be in accordance with the regulations of ALL authorities
having jurisdiction and MUST conform to all applicable
codes. It is the responsibility of the installing contractor to
determine and comply with ALL applicable codes and
regulations. Field-supplied motors should be Underwriters
Laboratories (UL) or Canadian Standards Association
(CSA) approved. Field wiring must comply with National
Electrical Code (NEC) and all local requirements.
3
WARNING