1.3 Wiring
1. For the internal block diagram of the Autoflame Flame Safeguard controller, see section 1.3.1, 1.3.2
& 1.3.3.
2. Disconnect the power supply before beginning installation to prevent electrical shock and
equipment damage. More than one power disconnect may be involved.
3. All wiring must comply with all applicable electrical codes, ordinances and regulations. Wiring,
where required, must comply with NEC Class 1 wiring.
4. Recommended wire size and type is defined in section 1.4.6 Cable Specifications. For high
temperature installations, use wire selected for a temperature rating above the maximum operating
temperature. All wiring must be moisture resistant.
5. Do not connect more than two wires per terminal. If more than two wires need to be connected to a
terminal, wire into a suitable terminal block in the panel first and from there to the unit terminal with
a single wire.
6. Recommended wire routing for Autoflame Flame Scanners:
a. Do not run high voltage ignition transformer wires in the same conduit with the flame scanner
wiring.
b. Do not route flame scanner wires in a conduit with line voltage circuits.
c. Enclose flame scanner wires in metal conduit.
d. Follow directions given in the Autoflame Flame Scanners Guide.
7. Do not exceed the terminal ratings. Refer to the wiring diagram in section 1.3.1, 1.3.2 & 1.3.3 or to
the ratings in the section 1.4 Electrical Specifications.
8. The voltage tolerance of the power supply must match those of the Flame Safeguard controller. A
separate power supply circuit may be required for the Flame Safeguard controller with the required
disconnect and overload protection added.
9. Check all wiring circuits and complete all the checks before installing the plug-in connectors to the
flame safeguard controller; see section 1.3.1, 1.3.2 & 1.3.3.
10. Install all electrical connectors.
11. Restore power to the panel.
Electrical Shock Hazard
Can cause severe injury, death or property damage.
1. To prevent electrical shock and equipment damage, disconnect the power supply before beginning
installation. More than one power supply disconnect may be involved.
2. Wiring connections for the Autoflame Flame Safeguard controller are unique; therefore, refer to
sections 1.3 and 1.4 for the correct specifications and connections.
3. Wiring must comply with all applicable codes, ordinances and regulations.
4. Wiring, where required, must comply with NEC Class 1 wiring.
5. Loads connected to the Flame Safeguard controller must not exceed those listed on the wiring label
or the specifications (see section 1.4.2 & 1.4.5 of this manual).
6. Limits and interlocks must be rated to carry and break current simultaneously to the ignition
transformer, pilot valve, and main fuel valve(s).
7. All external timers must be listed or component recognized by authorities who have jurisdiction for
the specific purpose for which they are used.
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