41
Precautions for piping installation
Install the pipes as illustrated in the standard pipe drawing.
Failure to install the pipe as illustrated in the standard piping drawing may deteriorate the
efficiency of the boiler and the circulation of the heating water, which may result in a boiler
malfunction.
A separable union connection or a nut connection shall be performed on the connection
points.
The piping materials shall comply with the Standard of each nation.
Do not use the metals with different electric potentials to install the piping for a dedicated
boiler for hot water supply, (For example, do not install the copper pipe in the iron boiler.)
which may cause galvanic corrosion, eventually generating rusty water.
Do not use the rubber hose for the faucet, for piping connection.
Be sure to remove foreign objects inside the pipe prior to the piping installation.
Install the piping correctly for the water supply, the hot water supply, the heating, and the
drain.
If the water supply pressure exceeds the allowable working pressure specified on the name
plate, be sure to install the depressurizing valve.
Proper measures shall be taken against a water leak through a water leak test for the entire
piping after completion of installation.
The entire pipelines, except for the fuel pipe, shall be provided with heat insulation to
protect against frost, after completion of installation. (Especially, care shall be taken for
the water supply and the hot water pipes.)
Be sure to install the pressure release pipe for installation of the boiler. If it is impossible
to install the pressure release pipe, the safety valve, operating below the maximum
allowable working pressure of the boiler, shall be installed. (The maximum allowable
working pressure of the boiler is presented in the “Specifications”.)
Never install the valve and the check valve in the pipeline where the pressure release pipe
or the safety valve is installed.
Select the boiler expansion tank, if necessary, with a capacity suitable for the boiler in use.
Do not use the water inlet instead of the drain, and vice versa.
If the water supply is to be made to the boiler from the rooftop water tank, be sure to
install the water supply pipe in the auxiliary tank, separate from the rooftop water tank,
for water supply to the boiler.
Install the pipes as illustrated in the standard pipe drawing.
Summary of Contents for LST-58K
Page 1: ...LST 58K...
Page 2: ......
Page 11: ...The structure and its description 11 Boiler LST 58K...
Page 28: ...Outside drawing on the boiler 29 LST 58K...
Page 42: ...43 Standard piping drawing Open expansion Combi boiler Closed expansion Combi boiler...
Page 51: ...55 Electric wiring diagram IU08 2 IU0 D 2 OFU05G IU08K DU06P...
Page 53: ...memo 57...
Page 54: ...58 memo...
Page 55: ......