Owners Manual

14 49-5000255
ENGLISH
INSTALLATION INSTRUCTIONS
4. Refrigerant Pipe Installation
• Pipes between the outdoor unit and connection kit,
selection of refrigerant branching suite, and the pipe
between refrigerant branching suites and the indoor
units, please refer to the installation instructions or
equipment design data attached to the outdoor unit.
• Before Installation, make sure the type of the refrigerant
to be used is R410A. (If a refrigerant other than this type
is used, it cannot run properly)
• Please provide thermal insulation at gas pipe, liquid
pipe and the connections between these pipes. In the
absence of thermal insulation, liquid leakage and scalding
may happen. Please provide thermal insulation material
that can sustain temperature over 120 °C.
• Enhance the thermal insulation material based on the
installation environment. The indicators are shown
below.
For RH75%–80% at 86°F: over 5/8” thick.
For over 80% at 86°F: over 3/4” thick.
If not reinforced, the thermal insulation material surface
is prone to condensation. Please refer to the equipment
design data for further details.
The outdoor unit is already filled with refrigerant.
To connect the pipes to connection kit or remove them
from connection kit, do use both spanner and torque
wrench.
Apply oil to inside and outside of the flare. Make hand tight
and then complete with a torque wrench.
Determine the tightening torque. (Excessive tightening
may damage the nuts or tubing and cause leakage)
Check the connecting pipes for refrigerant leakage and
then fix the thermal insulation.
Only use sealing gasket to wrap the part jointing between
the gas pipe and thermal insulation.
For pipe cutter and flare tool, please use R410A special
tools.
NOTES:
• Please do not let any type of gas other than the specified
refrigerant go into the refrigeration system;
• In case of refrigerant leakage during operation, please
replace the gas. (Fill the refrigerant at the outdoor unit)
Apply oil here
Torque spanner
Spanner
Pipe joint
Cone nut
Select Piping Materials
• Make sure both the internal surface and external
surface of the pipes are intact and are free from harmful
contaminants such as sulphur, oxide, foreign matter,
cutting powder, grease and water.
• Please use the following materials for the refrigerant pipe.
• The branch pipe for the pipe must have refrigerant
branching suite. For selection of refrigerant branching
suite and max. height drop between indoor units, please
refer to the installation instructions or technical data
attached to the outdoor unit.
Connection kit MS1-036A MS3-036A
Connection kit - Indoor max. single pipe length (ft) 49 49
Single way total pipe length refer to outdoor
Single way pipe length refer to outdoor
Main pipe beween outdoor to 1st branch refer to outdoor
Pipe length between outdoors refer to outdoor
Height difference between
indoor and outdoor
Outdoor is upper refer to outdoor
Outdoor is lower refer to outdoor
Height difference between outdoors (in the same system) refer to outdoor
Height difference between indoors refer to outdoor
Outdoor
Connection Kit
Max. length 49ft
Connection Kit
Super Match Indoor
Super Match Indoor
Super Match Indoor
Super Match Indoor
MRV Indoor