Installation Of Water Piping - Saturn KDB - 161 GOM Manual

3. Installation of water piping

The piping materials used should meet local codes and industry standards.
Piping must be cleaned and flushed-out before installation.
Do not apply torch heat within 300mm of the bottom connections of the unit.
Perform all solder connections at a safe distance from the (brass) male
connectors below the unit. Allow fittings to cool, before attaching to unit. Use only approved coupling unions with
O-rings to attach field piping to unit.
The 'heating' pipe should be 3/4" and of type-L copper. Never use aluminum, plastic, or galvanized steel piping.
The pipe size used for supply heating water should be the same size used for the return heating water.
Use only copper piping with lead-free solder for the domestic water side.
Since the expansion tank has already been installed in the unit, no separate tank is required.
The size of the domestic hot water pipe should be 1/2" diameter.
The length of piping should be as short as possible and the piping should have minimal number of bends and
connections.
Use only ball type isolating valves. Do not use gate valves.
Never leave the heating pipes disconnected while operating the unit as a boiler. This will cause damage to the
heat exchanger and void the manufacturers warranty.
All piping should be insulated.
After making the piping connections, check for gas or water leaks.
If the water supply pressure is 10 kgf/cm or higher, install the reduction valve on the water supply piping.
If the water supply pressure is 0.3 kgf/cm or lower, install a pressurizing pump.
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KDB-GOM
Series