Safe Refrigerant Handling; Refrigerant Lines - Daikin DZ18VC Series Installation Instructions Manual
Heat pump unit
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Also See for DZ18VC Series:
- Instructions (4 pages) ,
- Service instructions manual (88 pages)
Table of Contents
Electrical Noise
The unit should be well grounded so that potential effects of
electrical noise from the inverter to surrounding equipment
can be minimized.
When selecting an installation location, keep sufficient dis-
tance from the heat pump unit and wiring to radios, personal
computers, stereos, etc., as shown in the following figure.
To Indoor Unit and Thermostat
Radio, TV
(In.)
Placement to Minimize Electronic Noise
Safe Refrigerant Handling
While these items will not cover every conceivable situation,
they should serve as a useful guide.
T
,
O AVOID POSSIBLE INJURY
HANDLING OF REFRIGERANTS
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
.
BEFORE BEGINNING WORK
• L
IQUID REFRIGERANT CAN BE VERY COLD
,
OR BLINDNESS
AVOID CONTACT AND WEAR GLOVES AND GOGGLES
LIQUID REFRIGERANT DOES CONTACT YOUR SKIN OR EYES
.
HELP IMMEDIATELY
• A
EPA
LWAYS FOLLOW
REGULATIONS
P
OISONOUS GAS WILL BE PRODUCED
T
O AVOID POSSIBLE EXPLOSION
)
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
• E
NSURE THE PRESSURE RATING MEETS OR EXCEEDS
W
,
HEN IN DOUBT
DO NOT USE CYLINDER
Circuit
Breaker
WARNING
,
EXPLOSION OR DEATH
PRACTICE SAFE
.
WARNING
. T
"
HEY CAN
PUSH OUT
. T
O AVOID
:
.
,
THOROUGHLY VENTILATE THE AREA
. T
O AVOID POSSIBLE FROST BITE
,
SEEK MEDICAL
. N
EVER BURN REFRIGERANT
.
WARNING
,
(
USE ONLY RETURNABLE
NOT
5
YEARS
400
PSIG
.
T
O AVOID POSSIBLE EXPLOSION
•N
EVER APPLY FLAME OR STEAM TO A REFRIGERANT CYLINDER
MUST HEAT A CYLINDER FOR FASTER CHARGING
IT IN WARM WATER
•N
EVER FILL A CYLINDER MORE THAN
REFRIGERANT
•N
EVER ADD ANYTHING OTHER THAN
R-410A
OR CERTIFIED FOR THE TYPE OF REFRIGERANT USE
•S
TORE CYLINDERS IN A COOL
AS A PLATFORM OR A ROLLER
Refrigerant Lines
T
HE COMPRESSOR
SUSCEPTIBLE TO MOISTURE ABSORPTION AND COULD CAUSE
COMPRESSOR FAILURE
ANY LONGER THAN NECESSARY FOR INSTALLATION
Use only refrigerant grade (dehydrated and sealed) copper
tubing to connect the heat pump unit with the indoor unit. After
cutting the tubing, install plugs to keep refrigerant tubing clean
and dry prior to and during installation. Tubing should always
be cut square keeping ends round and free from burrs. Clean
the tubing to prevent contamination. The liquid line must be
insulated if more than 50 ft. of liquid line will pass through an
area that may reach temperatures of 30 °F or higher than
ambient in cooling mode and/or if the temperature inside
the conditioned space may reach a temperature lower than
ambient in heating mode. Never attach a liquid line to any
"
THE
uninsulated potion of the gas line.
Do NOT let refrigerant lines come in direct contact with plumb-
ing, ductwork, floor joists, wall studs, floors, and walls. When
. B
Y
running refrigerant lines through a foundation or wall, openings
should allow for sound and vibration absorbing material to be
placed or installed between tubing and foundation. Any gap
between foundation or wall and refrigerant lines should be
filled with a pliable silicon-based caulk, RTV or a vibration
. I
F
damping material. Avoid suspending refrigerant tubing from
joists and studs with rigid wire or straps that would come in
contact with the tubing. Use an insulated or suspension type
,
AS
hanger. Keep both lines separate and always insulate the
gas line.
Insulation is necessary to prevent condensation from form-
ing and dropping from the gas line. Armflex or satisfactory
equivalent with 3/8" min. wall thickness is recommended. In
severe conditions (hot, high humidity areas) 1/2" insulation
may be required. Insulation must be installed in a manner
which protects tubing and connections from damage and
contamination.
.
.
3
WARNING
:
.
80%
.
R-410A
. T
CYLINDER
HE SERVICE EQUIPMENT USED MUST BE LISTED
,
. N
DRY PLACE
.
CAUTION
PVE
R-410A
OIL FOR
UNITS IS EXTREMELY
. D
O NOT LEAVE SYSTEM OPEN TO ATMOSPHERE
. I
F YOU
,
PARTIALLY IMMERSE
FULL OF LIQUID
TO A RETURNABLE
.
EVER USE A CYLINDER
.
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