Detroit-radiant-products-company QTD Series Manuel d'utilisateur télécharger pdf (Page 30)

QTD Series

3.0 Installation • Electrical Requirements • Field Wiring

WARNING

Electric Shock

Field wiring to the radiant tube heater must be connected and grounded in accordance

with national, state, provincial and/or local codes. In the United States refer to the most

current revisions to the ANSI/NFPA 70 Standard and in Canada refer to the most current

revisions to the CSA C22.1 Part I Standard.

Wiring

Figure 3.21 • Field Wiring Diagram • Multiple Unit operation on a Single 24V Control*

N L1

PANEL

GROUND

120V BLACK

POWER CORD

24V YELLOW

CONTROL

CORD

Low FireCommon

Common

High Fire

PANEL

GROUND

120V BLACK

POWER CORD

24V YELLOW

CONTROL

CORD

Low FireHigh Fire

EXTERNAL TRANSFORMER

REQUIRED.

A 40VA TRANSFORMER IS

SUFFICIENT TO OPERATE

UP TO TEN APPLIANCES.

NOTE: STAGE 1 IS THE

HIGHER TEMPERATURE

SETPOINT AND STAGE TWO IS

THE LOWER TEMPERATURE

SETPOINT

24V OUT - STAGE 1

(LOW FIRE)

24V OUT - STAGE 2

(HIGH FIRE)

24V IN

BURNER BOX

24V Yellow Control Cord

Green: Common

White: Low Fire

Black: High Fire

*NOTE: In order for the unit to operate with this conﬁguration, the

Dual Pole, Dual Throw Switch must be toggled to the 24VAC IN

position. (See Detail ‘A’)

CONTROL VOLTAGE SELECTOR

24VAC

OUT

INSIDE SERVICE PANEL DETAIL ‘A’

CONTROL VOLTAGE SELECTOR

24VAC

OUT

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 43 44

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Detroit-radiant-products-company QTD Series Manuel d'utilisateur Page 30

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