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Part II. Water Module
Installation and Maintenance Manual
1. Introduction
Read this installation manual carefully before
installing the module and follow the instructions for
installation. After installation, conduct test run to
confirm normal running of the machine. Water module
must be installed indoor with the environmental
temperature between 0-35°C.
● Without reading the installation manual, do not
carry out refrigerant piping connection, water pipe
connection and wiring connection.
● Check whether the ground wire connection is
correct and firm.
● Connect to the fuse of specified capacity.
● The user should not replace the power cord and
this must be conducted by professional repair
personnel.
● Water module, wire remote controller and wires
should not be installed 3m from the strong
electromagnetic wave radiation source, such as
medical appliances.
2. Special Precautions
● Water module uses R410A refrigerant. Pipe
system must be kept clean, dry and sealed.
● Because R410A is a mixed refrigerant, it must be
added in liquid state. If the added refrigerant is
gaseous, the composition will change and the air
conditioning system may not work normally.
● Design pressure at the refrigerant side is 4.15MPa
and that at water side is 0.3 MPa. Select
corresponding copper pipes and water pipes
according to the design pressure.
3. Introduction to the Machine
3.1 General
Water module is a system mounted on the wall and
can be connected to floor heating, domestic water
tank and fan coil. When the outdoor temperature is
too low or the indoor load is large, water module will
start the electric heater to generate additional heat. If
the outdoor unit fails to work, the backup heater can
independently provide heat.
3.2 Examples of Application
When each independent floor heating has an
independent remote control valve, a pressure
differential bypass valve must be installed to avoid
too large or too small water flow in the heating
loop.
● Without reading the installation manual, do not
carry out refrigerant piping connection, water pipe
connection and wiring connection.
● Check whether the ground wire connection is
correct and firm.
● Connect to the fuse of specified capacity.
this must be conducted by professional repair
personnel.
● The user should not replace the power cord and
● Water module, wire remote controller and wires
should not be installed 3m from the strong
electromagnetic wave radiation source, such as
medical appliances.
When each independent floor heating has an
independent remote control valve, a pressure
differential bypass valve must be installed to avoid
too large or too small water flow in the heating
loop.
Do not use water module for another heat source
series (such as gas furnace), If this requirement is
not met, our company will not take any responsibility
for damage caused.
1. A warning to assure that partial units shall only be
connected to an appliance suitable for the same
refrigerant.
2. This unit <model AHM-080FJFAA and
AHM-160FJFAA> is a partial unit air conditioner,
complying with partial unit requirements of this
International Standard, and must only be connected
to other units that have been confirmed as
complying to corresponding partial unit
requirements of this International Standard.