LAARS Stor - Installation, Operation and Maintenance Instructions - Manual (Page 24)

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Water Connections continued-
CONNECT STEAM BOILER SUPPLY PIPING
Figure 4 represents a typical steam boiler connection diagram. Refer
to the boiler installation manual or contact the boiler manufacturer for
an appropriate piping diagram. The use of a union, shut-off valves,
and a drain valve is recommended for future service convenience.
The use of an in-line “Y”-style strainer is required to prevent
accumulation of sludge in the water heater’s coil.
Figure 4 – Typical Steam Boiler Connections (connections available below
the water line)
NOTICE
Typical steam boiler without connections available below the water line is
not recommended due to insufficient water temperature, especially during
warmer months when the space heating system is not operational. Boiler
water temperature at the bottom of a steam boiler can be 50°F lower than
the boiler’s water temperature limit setting during such periods.
FILL BOILER SYSTEM
1. On new boiler installations, do not purge the boiler or space
heating system through the water heater. During any boiler or
space heating system flushing, cleaning, or purging, the water
heater should be isolated to avoid possible attack on the carbon
steel coil by chemical additives.
2. Purge air from boiler/water heater piping.
3. Check system for leaks. Repair as necessary.