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8.1. Precautions during installation
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maintenance, checkup, and replacement.
To protect the heat source unit, install a strainer on the circulating water inlet
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Use a sleeve to protect the pipes at the point where they go through a wall.
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pipes against breakage and bending.
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water pipes, power source and transmission wires access holes should be
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For installing two units, install water pipes in parallel to each other so that the
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thread.
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end.
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unit side in place.
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connection.
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Example of heat source unit installation (using left piping)
[Fig. 8.1.1] (P.3)
A
Main circulating water pipe
B
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Drain pipe
In order to protect the unit, consider the water circuit design that uses the
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System example of water circuit
[Fig. 8.1.2] (P.3)
A
Heat source unit
B
Strainer
C
Flow Switch
D
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Temperature gauge
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Pressure gauge
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Pump
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Cooling tower
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Heating tank
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8.2. Insulation
installation
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there is no need to insulate the indoor piping. Insulation should be installed in
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On any heat source piping.
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On any drainage piping.
8.3. Water processing and water quality
control
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the water circulation system.
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Water Quality Processing
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Regular water quality processing is recommended.
Cold water circulation systems using open heat storage tanks are
particularly prone to corrosion.
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water supply tank is installed, keep air contact to a minimum, and keep
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8. Water pipe installation
7.1. Installation
[Fig. 7.1.1] (P.2)
A
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Check that the installation leg corners are securely supported to ensure that
the legs do not bend.
C
Check that the installation leg corners are securely supported.
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strong winds.
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Vibration may be transmitted to the installation area and noise and vibration
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Warning:
Install the unit in a location strong enough to withstand its weight.
Any lack of strength may cause unit to fall down, resulting in a
personal injury.
Have installation work in order to protect against strong winds and
earthquakes.
Improper installation may cause unit to fall down, resulting in a
personal injury.
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wiring routes.
7.2. Service
space
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[Fig. 7.2.1] (P.2)
A
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Heat source unit
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7. Installation
