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3
IMPORTANT INFORMATION
SAFE REFRIGERANT HANDLING
While these items will not cover every conceivable situation, they should serve as a useful guide.
WARNING
R
EFRIGERANTS ARE HEAVIER THAN AIR.
T
HEY CAN "PUSH OUT" THE
OXYGEN IN YOUR LUNGS OR IN ANY ENCLOSED SPACE.
T
O AVOID
POSSIBLE DIFFICULTY IN BREATHING OR DEATH:
•
N
EVER PURGE REFRIGERANT INTO AN ENCLOSED ROOM OR SPACE.
B
Y
LAW, ALL REFRIGERANTS MUST BE RECLAIMED.
•
I
F AN INDOOR LEAK IS SUSPECTED, THOROUGHLY VENTILATE THE AREA
BEFORE BEGINNING WORK.
•
L
IQUID REFRIGERANT CAN BE VERY COLD.
T
O AVOID POSSIBLE FROST-
BITE OR BLINDNESS, AVOID CONTACT WITH REFRIGERANT AND WEAR
GLOVES AND GOGGLES.
I
F LIQUID REFRIGERANT DOES CONTACT YOUR
SKIN OR EYES, SEEK MEDICAL HELP IMMEDIATELY.
•
A
LWAYS FOLLOW
EPA
REGULATIONS.
N
EVER BURN REFRIGERANT,
AS POISONOUS GAS WILL BE PRODUCED.
WARNING
T
O AVOID POSSIBLE EXPLOSION:
•
N
EVER APPLY FLAME OR STEAM TO A REFRIGERANT CYLINDER.
I
F YOU
MUST HEAT A CYLINDER FOR FASTER CHARGING, PARTIALLY IMMERSE
IT IN WARM WATER.
•
N
EVER FILL A CYLINDER MORE THAN 80% FULL OF LIQUID REFRIGERANT.
•
N
EVER ADD ANYTHING OTHER THAN
R
-22 TO AN
R
-22 CYLINDER OR
R
-410
A
TO AN
R
-410
A
CYLINDER.
T
HE SERVICE EQUIPMENT USED MUST
BE LISTED OR CERTIFIED FOR THE TYPE OF REFRIGERANT USED.
•
S
TORE CYLINDERS IN A COOL, DRY PLACE.
N
EVER USE A CYLINDER
AS A PLATFORM OR A ROLLER.
WARNING
T
HE
U
NITED
S
TATES
E
NVIRONMENTAL
P
ROTECTION
A
GENCY ("
EPA
")
HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND
DISPOSAL OF REFRIGERANTS INTRODUCED INTO THIS UNIT.
F
AILURE TO
FOLLOW THESE REGULATIONS MAY HARM THE ENVIRONMENT AND CAN
LEAD TO THEH IMPOSITION OF SUBSTANTIAL FINES.
T
HESE REGULATIONS
MAY VARY BY JURISDICTION.
S
HOULD QUESTIONS ARISE, CONTACT YOUR
LOCAL
EPA
OFFICE.
WARNING
T
O AVOID POSSIBLE INJURY, EXPLOSION OR DEATH, PRACTICE SAFE
HANDLING OF REFRIGERANTS.
WARNING
S
YSTEM CONTAMINANTS, IMPROPER SERVICE PROCEDURE AND/OR PHYSICAL
ABUSE AFFECTING HERMETIC COMPRESSOR ELECTRICAL TERMINALS MAY
CAUSE DANGEROUS SYSTEM VENTING.
The successful development of hermetically sealed refrigeration
compressors has completely sealed the compressor's moving
parts and electric motor inside a common housing, minimizing
refrigerant leaks and the hazards sometimes associated with
moving belts, pulleys or couplings.
Fundamental to the design of hermetic compressors is a method
whereby electrical current is transmitted to the compressor mo
-
tor through terminal conductors which pass through the com
-
pressor housing wall. These terminals are sealed in a dielectric
material which insulates them from the housing and maintains
the pressure tight integrity of the hermetic compressor. The ter
-
minals and their dielectric embedment are strongly constructed,
but are vulnerable to careless compressor installation or main
-
tenance procedures and equally vulnerable to internal electrical
short circuits caused by excessive system contaminants.
In either of these instances, an electrical short between the
terminal and the compressor housing may result in the loss of
integrity between the terminal and its dielectric embedment.
This loss may cause the terminals to be expelled, thereby vent
-
ing the vaporous and liquid contents of the compressor housing
and system.
A venting compressor terminal normally presents no danger to
anyone, providing the terminal protective cover is properly in
place.
If, however, the terminal protective cover is not properly in
place, a venting terminal may discharge a combination of
(a)
hot lubricating oil and refrigerant
(b)
flammable mixture (if system is contaminated
with air)
in a stream of spray which may be dangerous to anyone in the
vicinity. Death or serious bodily injury could occur.
Under no circumstances is a hermetic compressor to be elec
-
trically energized and/or operated without having the terminal
protective cover properly in place.
See Service Section S-17 for proper servicing.
Summary of Contents for DAR09
Page 59: ...59 SERVICING Table 1 Quick Reference Table...
Page 81: ...81 AIRHANDLERS...
Page 96: ...96 REM OTE SPLITS...