System Piping - ECR International CHB-100 Manuel D'installation, D'utilisation Et D'entretien

5.6 System Piping

•
prevention device.
• Single boiler system.
Additional considerations:
• Boiler control is designed for single central heating
pump. Installer responsible for integration of
multiple central heating pumps.
5.6a Low Water Cut Off (LWCO)
• Boiler installed above radiation level (or as required by
authority having jurisdiction) shall have low water cutoff
• Connect LWCO switch leads and 120V power leads
to terminals provided. See Boiler Wiring Diagram.
Provide power to LWCO per manufacturer's
instructions.
•
for minimum probe height. Do not install shutoff valve
between boiler and LWCO probe.
• If using separate stand pipe, install air vent using
tee to avoid nuissance shutdowns.
•
• Arrange piping to prevent water dripping onto boiler.
EN
5 - HYDRONIC PIPING
Figure 10
LWCO
To
Supply
Safety Relief
Valve
14
Air Vent
acceptable height
for LWCO control
Pipe
to Drain
Minimum
Gas
Supply
Return
Water