Chromalox DH 설치 지침 매뉴얼 - 페이지 5

{카테고리_이름} Chromalox DH에 대한 설치 지침 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Chromalox DH 14 페이지. Electric duct heaters

Inner Baffle

Remove Bracket and

Use Sheetmetal Screws

Thru Same Holes into Duct.

Figure 7

8. Installation with flexible duct. Where a duct heater

must be installed near a flexible duct connection,

be certain that a 4' minimum distance between the

duct heater and the flexible connector exists and

that the connector is suitable for 195°F tempera-

ture. (Refer to Fig. 8).

9. Do not install duct heater outdoors. Duct heaters

cannot be installed with rooftop equipment where

they are exposed to the weather.

Insert Type

Perforated Metal

Duct Heater

(50% Open Area)

Oversized Duct

Flexible Duct

(Must be suitable

for 195°F)

10. Installation with dampers or filters. Maintain at least

4' distance between duct heater and damper, filter

frames, or other similar obstructions. (Refer to Fig. 9).

Damper

Clearance: Zero clearance between duct heater and

combustible materials such as wood is permissible.

However, adequate clearance must be provided around

terminal box for proper ventilation and future service ac-

cessibility.

Duct Heater

4 Ft.

Min.

Figure 8

4 Ft.

Min.

Air Flow

Duct

Heater

Top of Duct

Figure 9