Lanair MXB360 - Manual (Page 22)

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Section 12 - Electrical Connections
Main Electrical Installation
1. All wiring must comply with the National Electrical Code. State and Local Ordinances, and be wired by a qualified
electrician.
2. Electrical service MUST be connected to a separate 20 AMP, 115 VAC, 60 HZ single phase circuit.
3. Electrical service connections are made in the electrical junction box on side of the boiler.
4. The boiler must have a safety equipment ground from the main electrical service, stranded 12 GA minimum.
5. The electrical conductors for electrical service to the heater MUST be stranded 12 GA minimum.
6. Install a manual service disconnect near the heater, and label its function.
7. The supply voltage must be maintained at a minimum 110 VAC.
8. The electrical conductors from the main electrical service must be within approved conduit.
9. Keep all electrical conductors and conduit away from the chimney connector as well as any other hot surfaces. Refer
to Figure 15, Wiring Diagram for color code, etc. Keep the power off until the heater is ready to be started. Refer to
Section 13 Start Up Procedure.
Fuel Supply Pump Electrical Installation
1. All wiring must comply with the National Electrical Code, State and Local Ordinances, and be wired by a qualified
electrician.
2. The electrical conductors to the fuel pump motor MUST be stranded 14 GA minimum.
3. The electrical service connections for the fuel pump motor are made in the electrical junction box on the side of the
boiler.
4. The pump motor MUST have a safety equipment ground from the main electrical service, stranded 12 GA minimum.
5. The electrical conductors from the electrical junction box to the pump motor must be within approved conduit.
6. Keep all electrical conductors and conduit away from the chimney connector as well as any other hot surfaces. Refer
to Figure 15 Wiring Diagram for color code, etc. Keep the power off until the boiler is ready to be started. Refer to
Section 13 Start Up Procedure.
Hi-Limit Switch and Manifold Controls Electrical Installation
All wiring must comply with the National Electrical Code. State and Local Ordinances, and be wired by a qualified
electrician.
CAUTION: HAZARD OF ELECTRICAL SHOCK!
!
ATTENTION! DUE TO VARYING SYSTEM DESIGNS, ONLY A CERTIFIED HVAC/HYDRONICS
INSTALLER CAN DETERMINE THE PROPER WIRING OF THESE COMPONENTS.
!