Refrigerant Lines - Goodman CONDENSING UNIT HEAT PUMP Installation & Service Reference

S R
AFE EFRIGERANT
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
OXYGEN IN YOUR LUNGS OR IN
POSSIBLE DIFFICULTY IN BREATHING
• N
EVER PURGE REFRIGERANT
,
LAW ALL REFRIGERANTS MUST
• I
F AN INDOOR LEAK IS SUSPECTED
.
BEFORE BEGINNING WORK
• L
IQUID REFRIGERANT CAN BE
,
OR BLINDNESS AVOID CONTACT
LIQUID REFRIGERANT DOES CONTACT
.
HELP IMMEDIATELY
• A EPA
LWAYS FOLLOW REGULATIONS
P
OISONOUS GAS WILL BE PRODUCED
T
O AVOID POSSIBLE EXPLOSION
• N
EVER APPLY FLAME OR STEAM
MUST HEAT A CYLINDER FOR
.
IN WARM WATER
• N
EVER FILL A CYLINDER MORE
• N
EVER ADD ANYTHING OTHER
410A R‐410A
TO AN CYLINDER
BE LISTED OR CERTIFIED FOR
• S
TORE CYLINDERS IN A COOL
P .
LATFORM OR A ROLLER
T
O AVOID POSSIBLE EXPLOSION
)
DISPOSABLE SERVICE CYLINDERS
.
A SYSTEM
• E
NSURE THE CYLINDER IS FREE
.
LEAK OR EXPLOSION
• E
NSURE THE HYDROSTATIC TEST
• E
NSURE THE PRESSURE RATING
W ,
HEN IN DOUBT DO NOT USE
R L
EFRIGERANT INES
T POE
HE COMPRESSOR OIL FOR
SUSCEPTIBLE TO MOISTURE ABSORPTION
. D
COMPRESSOR FAILURE O NOT
ANY LONGER THAN NECESSARY
H
ANDLING
WARNING
,
EXPLOSION OR DEATH PRACTICE
.
WARNING
. T "
THAN AIR HEY CAN PUSH OUT
. T
ANY ENCLOSED SPACE O AVOID
:
OR DEATH
INTO AN ENCLOSED ROOM OR SPACE
.
BE RECLAIMED
,
THOROUGHLY VENTILATE
. T
VERY COLD O AVOID POSSIBLE
AND WEAR GLOVES AND GOGGLES
,
YOUR SKIN OR EYES SEEK
. N
EVER BURN REFRIGERANT
.
WARNING
:
TO A REFRIGERANT CYLINDER
,
FASTER CHARGING PARTIALLY IMMERSE
80%
THAN FULL OF LIQUID REFRIGERANT
R‐22 R‐22
THAN TO AN CYLINDER
. T
HE SERVICE EQUIPMENT USED
THE TYPE OF REFRIGERANT USED
, . N
DRY PLACE EVER USE A CYLINDER
WARNING
, (
USE ONLY RETURNABLE NOT
WHEN REMOVING REFRIGERANT
OF DAMAGE WHICH COULD LEAD
5
DATE DOES NOT EXCEED YEARS
400
MEETS OR EXCEEDS PSIG
.
CYLINDER
CAUTION
R‐410A
UNITS IS EXTREMELY
AND COULD CAUSE
LEAVE SYSTEM OPEN TO ATMOSPHERE
.
FOR INSTALLATION
Use only refrigerant grade (dehydrated and sealed) copper tub-
ing to connect the condensing unit with the indoor evaporator.
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.
Do NOT let refrigerant lines come in direct contact with plumb-
SAFE
ing, ductwork, floor joists, wall studs, floors, and walls. When
running refrigerant lines through a foundation or wall, open-
ings 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
THE
with a pliable silicon-based caulk, RTV or a vibration damping
material. Avoid suspending refrigerant tubing from joists and
. B
studs with rigid wire or straps that would come in contact with
Y
the tubing. Use an insulated or suspension type hanger. Keep
both lines separate and always insulate the suction line.
THE AREA
These sizes are suitable for line lengths of 79 feet or less. If a
FROST BITE
run of more than eighty feet is required, refer to Remote Cool-
. I
F
ing Service Manual, or TP-106 Long Line Set Application R-
MEDICAL
22, or TP-107 Long Line Set Application R-410A or contact
your distributor for assistance.
,
AS
RECOMMENDED INTERCONNECTING TUBING (Ft)
Cond
Unit
Tons
1 1/2
. I
F YOU
2
IT
2 1/2
.
3
R‐
OR
3 1/2
MUST
4
.
5
AS A
* Lines greater than 79 feet in length or vertical elevation
changes more than 50 feet refer to the Rem ote Cooling
Service Manual or contact your distributor for assistance.
Insulation is necessary to prevent condensation from form-
ing and dropping from the suction line. Armaflex (or satisfac-
FROM
tory equivalent) with 3/8" min. wall thickness is recommended.
In severe conditions (hot, high humidity areas) 1/2" insulation
TO A
may be required. Insulation must be installed in a manner
. which protects tubing from damage and contamination.
.
Where possible, drain as much residual compressor oil from
existing systems, lines, and traps; pay close attention to low
areas where oil may collect. NOTE: If changing refrigerant
types, ensure the indoor coil and metering device is compat-
ible with the type of refrigerant being used; otherwise, the
indoor coil must be replaced.
3
0-24 25-49
Line Diameter (In. OD)
Suct Liq Suct
5/8 1/4 3/4
5/8 1/4 3/4
5/8 1/4 3/4
3/4 3/8 7/8
7/8 3/8 1 1/8
7/8 3/8 1 1/8
7/8 3/8 1 1/8
50-79*
Liq Suct Liq
3/8 3/4 3/8
3/8 3/4 3/8
3/8 7/8 3/8
3/8 1 1/8 3/8
3/8 1 1/8 3/8
3/8 1 1/8 3/8
3/8 1 1/8 3/8