Figure 2 Wiring diagram
Wiring
requirements
Wiring procedure
Sequence of
operation
Part Number
For your safety, turn off power supply before making electrical connections to avoid possible electrical shock hazard.
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation resulting in servere personal injury, death or substantial property damage.
All wiring must be installed according to requirements of the National Electrical Code and any national, state or local code requirements having jurisdiction. All wiring external to boiler jacket must be N.E.C. Class 1.
The boiler must be electrically grounded according to the National Electrical Code, ANSI/NFPA No. 70 latest edition. Use 105oC thermoplastic wire, or equivalent, if any original wire must be replaced. GND (burner) lead wires must be 125oC wire.
Canadian installations must conform to CSA C22.1 Canadian Electrical Code Part 1 and any local or provincial codes.
Wiring to boiler must be No. 14 gauge or heavier. Install in conduit.
A separate electrical circuit with a fused disconnect switch (15 amp. recommended) should be used for the boiler.
•Determine right or left electrical supply wiring.
•Attach electrical junction box to inside jacket end panel. Screws and nuts are provided.
•Attach control transformer to junction box.
•Complete wiring per wiring diagram, Figure 2, pages 4 and 5.
•Install ignition control ground connection as shown in Figure 1 and wiring diagram, Figure 2.
•In Canada — attach chain between junction box and transformer with
"Hot" side of line voltage to boiler must be wired directly to limit circuit, then fed to transformer primary.
1.Operating control begins
2.Ignition control module energized.
On failure to sense pilot flame, control will wait 5 minutes then retry for ignition.
a.Pilot gas valve opens.
b.Pilot ignition spark begins.
c.Pilot ignites.
d.Pilot proves.
e.Main gas valve opens.
f.Main burners ignite.
3.Boiler shuts down when operating control satisfied.
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