Detroit-radiant-products-company QTS Series Manuel d'utilisateur télécharger pdf (Page 29)

QTS Series

The heater must be electrically grounded in accordance with the following codes:

United States: Refer to National Electrical Code

, ANSI/NFPA 70 (latest edition). Wiring must

conform to the latest edition of the National Electrical Code

, local ordinances, and

any special diagrams furnished.

Canada: Refer to Canadian Electrical Code CSA C22.1 Part 1 (latest edition).

3.0 Installation • Electrical Requirements • Thermostat

Electrical Requirements

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property

damage, serious injury or death. Read and understand, the installation, operating and

maintenance instructions thoroughly before installing or servicing this equipment. Only

trained, qualiﬁed gas installation and service personnel may install or service this

equipment.

Not for residential use! Do not use this heater in the home, sleeping quarters, attached

garages, etc. Installation of a commercial tube heater system in residential indoor spaces

may result in property damage, serious injury or death.

NOTICE

• 120 Volt - 60 Hz GRD, 3-wire.

• 24VAC thermostat connection.

• Starting current 1.5 amps.

• Running current 1.1 amps.

The QTS Series comes standard with internal isolation relays. 24 VAC must be supplied to each heater’s

yellow control cord. The burner control box is equipped with a six (6) foot yellow 24V control wire. Do not

supply 120V to the 24V connection.

NOTE: Heater also comes with a DPDT Switch to allow for alternate operation of unit. (Located inside

Service Access Panel). The alternate operation of the unit allows the internal transformer to send out

power for a thermostatic connection. (No external transformer necessary). When this conﬁguration is

selected, the heater will supply 24VAC out on the green control wire.

When heater is set up for the alternate operation, DO NOT supply an external supply of 24 volts. Damage

could result to the Dual Pole Isolation Relay.

This conﬁguration can only be utilized on a ‘single heater to thermostat’ type operation. For further

information, see ﬁgure 3.21, Alternate ﬁeld wiring diagram for Single unit operation with a 24VAC control.

The 120V supply connection is factory wired with a three-prong pig tail.

Refer to Field Wiring Diagram (see Figure 3.20).

Thermostat

NOTE: Different thermostats operate according to their particular features. Refer to thermostat

speciﬁcations for details.

QTS Series heaters require a 24V, single-stage thermostat to operate. The burner control box is

equipped with a yellow 24V control wire. Do not supply 120V to the 24V connection.

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Detroit-radiant-products-company QTS Series Manuel d'utilisateur Page 29