Detroit-radiant-products-company QTD Series Manuel d'utilisateur télécharger pdf (Page 23)

QTD Series

3.0 Installation • Venting • Common Venting

Figure 3.13 • Common Rooftop Venting - Side View

Common Venting

• When joining two heaters to a common vent, a staggered arrangement or a dual exhaust assembly

(P/N: YSM) must be used so by-products of one heater do not ﬂow into the adjoining vent of the

other heater.

• 6 in. diameter double-wall Type B-vent and 6 in. vent cap must be used.

• Common vented heaters must be controlled with the same thermostat. Do not operate individually.

Figure 3.14 • Common Sidewall Venting - Top View

*Consult the NFPA ANSI Z223.1 Gas Vent

Termination criteria if roof pitch exceeds 9:12.

Rooftop Vent Cap

Roof

Dual Exhaust

Assembly

Heater

Firestop Spacer

Double-Wall B

Vent

24 in.

Min.*

Double-Wall B-Vent

Heater

Dual Exhaust

Assembly

Sidewall

Sidewall Vent Cap

Wall Thimble

B to C

Adapter

Single Wall Vent

6 in.

Min.

Heater

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Detroit-radiant-products-company QTD Series Manuel d'utilisateur Page 23