Safe Refrigerant Handling; Important Information - Daikin ComfortNet DX16TC Series Service Instructions Manual
Condensing units, split system heat pumps with r-410a refrigerant blowers, coils, & accessories
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- Service instructions manual (93 pages) ,
- Service instructions manual (122 pages)
Table of Contents
IMPORTANT INFORMATION
SAFE REFRIGERANT HANDLING
While these items will not cover every conceivable situation, they should serve as a useful guide.
R
EFRIGERANTS ARE HEAVIER THAN AIR.
OXYGEN IN YOUR LUNGS OR IN ANY ENCLOSED SPACE.
POSSIBLE DIFFICULTY IN BREATHING OR DEATH:
N
•
EVER PURGE REFRIGERANT INTO AN ENCLOSED ROOM OR SPACE.
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.
BITE OR BLINDNESS, AVOID CONTACT WITH REFRIGERANT AND WEAR
I
GLOVES AND GOGGLES.
F LIQUID REFRIGERANT DOES CONTACT YOUR
SKIN OR EYES, SEEK MEDICAL HELP IMMEDIATELY.
A
EPA
•
LWAYS FOLLOW
REGULATIONS.
AS POISONOUS GAS WILL BE PRODUCED.
T
U
S
E
HE
NITED
TATES
NVIRONMENTAL
HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND
DISPOSAL OF REFRIGERANTS INTRODUCED INTO THIS UNIT.
FOLLOW THESE REGULATIONS MAY HARM THE ENVIRONMENT AND CAN
LEAD TO THEH IMPOSITION OF SUBSTANTIAL FINES.
S
MAY VARY BY JURISDICTION.
EPA
LOCAL
OFFICE.
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 refriger-
ation compressors has completely sealed the compressor's
moving parts and electric motor inside a common housing,
minimizing refrigerant leaks and the hazards sometimes asso-
ciated with moving belts, pulleys or couplings.
Fundamental to the design of hermetic compressors is a meth-
od whereby electrical current is transmitted to the compressor
motor through terminal conductors which pass through the
compressor 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 compres-
sor. The terminals and their dielectric embedment are strongly
constructed, but are vulnerable to careless compressor
installation or maintenance procedures and equally vulnerable
to internal electrical short circuits caused by excessive system
contaminants.
WARNING
T
HEY CAN "PUSH OUT" THE
T
O AVOID
T
O AVOID POSSIBLE FROST-
N
EVER BURN REFRIGERANT,
WARNING
P
A
ROTECTION
GENCY ("
F
AILURE TO
T
HESE REGULATIONS
HOULD QUESTIONS ARISE, CONTACT YOUR
WARNING
T
O AVOID POSSIBLE EXPLOSION:
N
•
EVER APPLY FLAME OR STEAM TO A REFRIGERANT CYLINDER.
MUST HEAT A CYLINDER FOR FASTER CHARGING, PARTIALLY IMMERSE
B
IT IN WARM WATER.
Y
N
•
EVER FILL A CYLINDER MORE THAN 80% FULL OF LIQUID REFRIGERANT.
N
•
EVER ADD ANYTHING OTHER THAN
R
A
-410
TO AN
BE LISTED OR CERTIFIED FOR THE TYPE OF REFRIGERANT USED.
S
•
TORE CYLINDERS IN A COOL, DRY PLACE.
AS A PLATFORM OR A ROLLER.
T
O AVOID POSSIBLE EXPLOSION, USE ONLY RETURNABLE (NOT DISPOSABLE)
SERVICE CYLINDERS WHEN REMOVING REFRIGERANT FROM A SYSTEM.
E
•
NSURE THE CYLINDER IS FREE OF DAMAGE WHICH COULD LEAD TO A
LEAK OR EXPLOSION.
E
•
NSURE THE HYDROSTATIC TEST DATE DOES NOT EXCEED 5 YEARS.
EPA
E
")
•
NSURE THE PRESSURE RATING MEETS OR EXCEEDS 400 LBS.
W
HEN IN DOUBT, DO NOT USE CYLINDER.
T
O AVOID POSSIBLE INJURY, EXPLOSION OR DEATH, PRACTICE SAFE
HANDLING OF REFRIGERANTS.
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
venting 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)
(b)
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.
3
WARNING
R
-22 TO AN
R
A
T
-410
CYLINDER.
HE SERVICE EQUIPMENT USED MUST
N
EVER USE A CYLINDER
WARNING
WARNING
hot lubricating oil and refrigerant
flammable mixture (if system is
contaminated with air)
I
F YOU
R
-22 CYLINDER OR
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