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3.1 Tools needed
•
Step 3: Connect Line Set to Indoor Unit
IMPORTANT:
1.
2.
Align the refrigerant pipes correctly, making sure
the dimensions of the connecting refrigerant pipe
match. Unscrew the seals and place the screw
connector of the line set pipe just onto the
threads of the piping from the indoor unit, and
tighten the first few threads by hand.
IMPORTANT:
Before you continue, it is essential that you read
the following instructions fully and carefully.
3.2 IMPORTANT INFORMATION
PLEASE READ FULLY BEFORE PROCEEDING TO NEXT STEP
}
Or 2x Crescent
(adjustable-type)
Wrenches
Opened-ended wrench sizes needed
(1x of each of these)
9K & 12K & 18K 24K
3/4” / 19 mm 3/4“ / 19 mm
7/8” / 22 mm 15/16“ / 24 mm
15/16” / 24 mm 1“ / 26 mm
1” / 26 mm 1-1/8” / 29 mm
1-1/4” / 31 mm
1x HVAC Torque Wrench (if available)
1x Allen key, 5 mm
1x Phillips-head screwdriver
1x leak-detection spray or a soapy water solution
(liquid detergent/mix, applied by brush or spray bottle)
.
...
.
The line sets are designed to only be installed once.
The seal within the line set cannot be guaranteed if
they are installed more than once. This will void the
warranty. They also contain a compression fitting
to seal and do not require a thread sealent (teflon
tape, etc.). Using a sealent may actually cause the
connection to leak over time.
Do not remove the plastic seals of the piping coming
from the indoor unit, or the appropriate line set
connector, until immediately before you connect
them. The plastic seals on each of the connectors
should be color-coded to match the seals of the
corresponding pipes they are to be connected to.
The screw connections may only be tightened using
the appropriate open-ended or crescent (adjust
-
able-type) wrench.
Always wear work gloves and goggles and use caution
when handling refrigerant. Please make sure that
refrigerant is never allowed to enter the environment.
Improper handling of refrigerant may be harmful to
your health.
NOTE:
Depending on the capacity rating of your unit,
(12K, 18K, 24K, 36K) the wrench sizes needed will vary, refer
to the table below (the unit uses metric sizes, the standard
sizes listed are approximations). Based on the availability of
wrenches in some of the sizes needed, the recommended
method is to use crescent (adjustable-type) wrenches that
can be adjusted to fit the size each step requires.
3.3 Connecting the Fast Connect® Line Set to
the piping from indoor unit
Refrigerant Piping Connection
DO NOT
DO NOT
If the screw connections are tightened with too little
torque, they will leak. If they are tightened with too much
torque, the screw connections may suffer damage,
which could also cause them to leak. Please refer to the
torque requirements section for more information. If
you are not confident about connecting the refrigerant
line connectors yourself, it is imperative that you contact
customer service or a professional HVAC technician.
