Bell & Gossett 10 001 265R5 TechnoForce Pump Controller - Manual (Page 15)

TECHNOFORCE Installation, Operation, and Maintenance 9
Installation
4. Installation
4.1 Field connections
4.1.0 Diagrams
Review the wiring diagrams and dimensional drawings before you install and operate the unit.
4.1.1 Electrical precautions
WARNING:
• Prevent electrical shocks. Disconnect the power supply before beginning installation. FAILURE
TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN SERIOUS PERSONAL INJURY,
DEATH AND/OR PROPERTY DAMAGE.
• Each motor must have a properly sized drive. Ground fault protection should be sized properly.
Refer to local electrical codes for sizing and selection.
• Refer to the motor manufacturer’s IOM for specific installation information.
• Motor can start automatically. Keep hands away from output shaft until motor is completely
stopped and input power is removed from the motor control panel. Lockout main power switch
while working near motor shaft.
• The use of motor disconnect switches is acceptable. Consult the factory for proper interlocking
with variable frequency drives.
• Motor control equipment and electronic controls are connected to hazardous line voltages.
When servicing electronic controls, there will be exposed components at or above line potential.
Extreme care should be taken to protect against shock. Stand on an insulating pad and make
it a habit to use only one hand when checking components. Always use accurate test meters
when checking electrical components. Always work with another person in case of an emergency.
Disconnect power when performing maintenance. Be sure equipment is properly grounded. Wear
safety glasses whenever working on electronic control or rotating equipment.
DANGER:
• Troubleshooting live control panels exposes personnel to hazardous voltages. Electrical
troubleshooting must only be done by a qualified electrician. FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD RESULT IN SERIOUS PERSONAL INJURY, DEATH, AND/OR
PROPERTY DAMAGE.
4.2 Earth (ground connections)
WARNING:
• Conduit grounds are not adequate. A separate ground wire must be attached to the ground lug
provided in the enclosure to avoid potential safety hazards. Failure to follow these instructions
could result in serious personal injury or death, property damage.
A grounding terminal is provided for a dedicated earth (ground) wire connection. You must follow all provisions
of the National Electrical Codes and local codes.
4.3 Sensor and control wiring
The following sections are based on the installation of standard TechnoForce product. Because of customized
software and hardware, the installing contractor should base all wiring connections on the wiring diagrams that
accompany each controller. These sections are meant to complement, not replace, those wiring diagrams.