Electrical Connections; Power Management, Quality And Electrical Protection - IBC Sl Series Installation & Operating Manual

The gas valve is provided with pressure taps to measure gas pressure upstream (supply
pressure) and downstream (manifold pressure) of the gas valve. Note that manifold pressure
varies slightly in accordance with firing rates with the modulating series boilers, but will always
be close to 0" wc.

3.13 Electrical connections

All electrical wiring to the boiler (including grounding) must conform to local electrical codes and/or
to the National Electrical Code, ANSI/NFPA No. 70 – latest edition, or to the Canadian Electrical
Code, C22.1 - Part 1.

3.13.1 Power management, quality and electrical protection

In areas of unreliable power, appropriate surge protectors and or power conditioning equipment
should be installed in power supply wiring circuits.
Note
The IBC boiler (like any modern appliance that contains electronic equipment) must
have a "clean" power supply, and is susceptible to power surges and spikes,
lightning strikes and other forms of severe electrical "noise". Power conditioning
equipment (surge protectors, APC or UPS devices) may be required in areas where
power quality is suspect.
In temporary or manual operation, for example in new construction heating, use a construction
thermostat or jumper with an in-line on/off switch for on/off management of the boiler. Do not turn
off the heat by removing power to the boiler. This will interrupt the moisture management routine
(fan turns at ultra low rpm for 90 minutes after burner shutdown) resulting in serious damage to the
boiler. Treat the boiler like a computer, where you do not just pull the plug when done.
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Section: Installation