3 | EG, PEG, EGH |
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Install boiler controls
Failure to properly install, pipe and wire boiler controls may result in severe damage to the boiler, building and personnel.
Water boiler
1.Install controls as shown on Control Tapping Table and Figure 3, page 6. Limit control and supply piping must be on the same end of EGH boiler.
2.Low water cut off for water boilers:
a)Must be installed if boiler is located above radiation level.
b)Must be installed on all EGH
c)May be required on water boilers by certain state, local or territorial codes or insurance companies. If a low water
3.If system is to be ASME inspected and approved, an additional high temperature limit is needed. Purchase and install in supply line above boiler.
Steam boiler
1.For steam boilers furnished with
2.For steam boilers furnished with float type low water
Install blowdown line in bottom of cutoff. See Figure 19 and control manufacturer’s instructions for details.
Pipe blowdown line near floor close to floor drain to eliminate potential of severe burns. Do not plug, valve or place any obstruction in blowdown line.
a)Other
b)Water feeders are not recommended for primary control. A
3.Install remaining controls as shown in Control Tapping Table and Figure 3, page 6.
Figure 17 Probe-type low water cut-off
NOTE: Water line dimension measured from bottom of boiler section leg where it rests on the boiler room floor or boiler foundation.
Figure 18 Float-type low water cut-off
Figure 19 Piping for optional
12 | Part Number |
