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QTD2
Series
31
3.0
Installation
•
Electrical Requirements and Wiring
•
Field Wiring Supply Voltage
Electrical Requirements and Wiring
All field installed wiring to the tube heater must be done in accordance with the national, state,
provincial, local codes and to the guidelines in this manual. In the United States, refer to the most
current revisions to the Electrical Code ANSI/NFPA 70 and in Canada refer to the most current
revisions to the Canadian Electrical Code CSA C22.1 Part 1. The unit must be electrically grounded
according to these codes. Line polarity must be observed when making field connections.
Field Wiring Supply Voltage
Before proceeding with electrical connections, ensure that the supply voltage, frequency, phase, and
current capacity meet the requirements specified on the rating plate. A dedicated line voltage supply
with properly sized wire should run directly from the main electrical panel to the heater. The power to
the unit must be protected with a circuit breaker appropriate for the load. The unit must be electrically
grounded in accordance with local codes or, in their absence, with the latest edition of the National
Electrical Code, ANSI/NFPA 70, and/or the Canadian Electrical Code CSA C22.1, latest edition.
WARNING
!
Shock hazard.
Disconnect power supply before making wiring connections to prevent
electrical shock and equipment damage.
Any original factory wiring that requires replacement must be replaced with wiring
material having a temperature rating of at least 105°C.
The power supply to the heater must be /- 5% of the voltage rating as indicated on the rating
plate of the appliance. If input power does not meet these specifications, contact your utility company.
CAUTION
!
This heater may be equipped with a supply cord to connect the main power supply. If installed, it is
located at the rear of the heater’s burner box, and utilizes a grounding prong. This plug must be
connected into an appropriate outlet receptacle that is properly installed and grounded in accordance to
local codes and ordinances.
The grounding receptacle must be installed within 5 feet of the heater’s service panel, and located in
the space occupied by the appliance. When plugging in the heater, make sure the supply cord is
protected from damage, and keep all cords away from the heater’s surfaces and out of the clearance to
combustible zones (see page 9). When routing the electrical supply for the unit, ensure that it does not
interfere or obstruct the heater’s service panel.
WARNING
!
Electric Shock Hazard
Do not force the three-prong plug into the grounded outlet, modify the plug, or use an
adapter. Never operate this appliance if the cord or plug is damaged.