Sanyo SGP-M2 Manuel D'installation page 30

If you wish to reduce the foundation weight when installing on a roof, use a light-weight foundation that utilizes
a suitable steel frame (for more information, please contact sakes offi ce)
The light-weight foundation is in accordance with building utilities earthquake-resistant design and construc-
tion guidelines. For construction, follow the installation instructions from the manufacturer supplying the steel
frame.
(2) Fuel piping work
As needed, attach devices 1 to 5 to the outdoor unit external fuel gas pipe. (Fig. 9)
1. Flexible gas hose 2. Pressure release tap
• Use a reinforced gas hose or a low-pressure gas hose with fuel gas
joint bracket between the fuel gas pipe master valve and the outdoor
unit. In addition, avoid excess pressure or shock to the outdoor unit's
fuel gas inlet by taking measures such as making the pipe path leading
up to the gas hose as short as possible. Otherwise, there is danger
of fi re resulting from fuel gas leakage.
• If necessary, install pipe brackets in the fuel gas pipe path to reduce
the risk of pressure or shock to the pipe path. In particular, take suf-
fi cient precautions when installing near roads. There is a danger of
fi re or explosion resulting from fuel gas leakage.
* In regions with heavy snowfall, take precautions to protect the fuel
gas pipe path from snow damage (Fig. 10).
• After installation work is completed, check that there is no gas leak-
age from the fuel gas pipe/hose path. There is danger of fi re resulting
from fuel gas leakage.
• To ensure safety in case of a gas leak, make sure that airfl ow sur-
rounding the outdoor unit is suffi cient and gas will not accumulate.
Accumulation of gas may result in fi re or explosion.
Exhaust drain port
Liquid tube
Condensate drain port
Fig. 8
3. Strainer
GB - 30
Fuel gas inlet
R3/4 external thread (male)
Discharge gas tube
Suction gas tube
4. Master valve 5. Pipe bracket
Fig. 9 Fuel Pipe Structure Diagram
Protective cover
Fuel gas pipe
Fig. 10 Fuel pipe protection example