Tornatech GPX User Manual

10
Wiring and Connections
Water Connections
The controller must be connected to the pipe system according to the latest edition of NFPA20 and also to a drain
pipe. The water connections are on the left side of the controller. The connection to the system pressure is a Male
½ NPT. If a drain is present, the connection to the drain is a tapered connection for plastic tubing.
Electrical Wiring
The electrical wiring between the power source and the fire pump controller shall meet the latest edition of NFPA
20, NFPA 70 National Electrical Code Article 695 or C22.1 Canadian Electrical Code, Section 32-200 or other local
codes. Electrical wiring shall be typically sized to carry at least 125% of the full load current (FLC or FLA) of the fire
pump motor.
Electrical Connections
A licensed electrician must supervise the electrical connections. The dimension drawings show the area suitable for
incoming power and motor connections. No other location shall be used. Only watertight hub fittings shall be used
when entering the cabinet to preserve the NEMA rating of the cabinet. The installer is responsible for adequate
protection of the fire pump controller components against metallic debris or drilling chips. Failure to do so may
cause injuries to personnel, damage the controller and subsequently void warranty.
Energy Consumption
Standby power: 13W
Sizing
Incoming power terminals on the controller are suitable to accept wire based on that selection with insulation not
less than 60°C. (Refer to terminal diagram for terminal sizes.)
The electrical wiring between the fire pump controller and the pump motor shall be in rigid, intermediate, or liquid
tight flexible metal conduit or Type MI cable and meet the requirements of NFPA 70 National Electrical Code or
C22.1 Canadian Electrical Code or other local codes.
The number of conductors required varies depending on the model of starter:
3-wires plus ground sized at 125% of full load current for models GPA, GPR, GPS and GPV.
6-wires plus ground sized at 125% of 50% of the motor full load current for GPP model.
6-wires plus ground sized at 125% of 58% of the motor full load current for GPY and GPW models.
Incoming Power Connections
Incoming normal power is to be connected to terminals located on the disconnecting means IS.
- For 3 phases motor: identified L1-L2 and L3.
- For single phase motor: identified L1 and L3
For the transfer switch, incoming alternate power is to be connected to terminals located on the disconnecting
means AIS (transfer switch side).
- For 3 phases motor: identified AL1-AL2 and AL3.
- For single phase motor: identified AL1 and AL3
Motor Connections
Motor wires shall be connected to terminals identified by:
- T1-T2 and T3 located on main contactor (1M) for models GPA, GPR, GPS and GPV
- T1-T2 and T3 located on contactor (1M) and T7-T8 and T9 located on contactor (2M) for model GPP
- T1-T2 and T3 located on contactor (1M) and T6-T4 and T5 located on contactor (2M) for models GPY and GPW
It is the responsibility of the installer to obtain connection information on the motor and to assure that the motor is
connected as per the motor manufacturer recommendations. Failure to do so may cause injuries to personnel,
damage the motor and/or the controller and subsequently void warranty on both items.

Tornatech GPX Specifications

General

Brand	Tornatech
Model	GPX
Category	Controller
Language	English