Chromalox PF455-3 - Manual
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Table of Contents:
- Page 2 – GENERAL; Ductwork must be in accordance with one of the fol-; Figure 5
- Page 3 – Incoming Air Temperature:; AIR FLOW
- Page 4 – MOUNTING; Multiple Duct Heaters:; Up to six duct heaters may be combined
- Page 6 – Conduit attachment to heater:; The appropriate wiring diagram; Typical DHIF Duct Heater
- Page 7 – M P - O O O O O - O O O 0 0 0 O O; CATALOG NUMBER DESIGNATION SYSTEM
DATE
SALES
REFERENCE
DIVISION
SECTION
Chromalox
®
(Supersedes PF455-2)
PF455-3
DH
161-562766-001
FEBRUARY, 2001
4
Chromalox Electric Airduct Heaters
with Fintube Heating Elements
© 2010 Chromalox, Inc.
GENERAL
These heaters are designed to be installed in either a horizontal
or vertical duct in one of the six positions shown in figure 16. The
heater is constructed with individual metal sheath fintube elements
mounted to a heavy gauge metal terminal box.
Due to the various options and materials available, check the
nameplate attached to the heater terminal box with the catalog
number designation system on page 7 before installing to insure
the heater you received conforms to your specification.
Please read these directions carefully to insure all limitations
are properly observed and all wiring and controls are properly
installed and connected.
IMPORTANT —
Observe at least one complete heating cycle
operation before leaving the installation.
DHII
Integral Controls
Insert Type
Figure 1
DHIF
Integral Controls
Flanged Type
Figure 3
DHRF
Remote Controls
Flanged Type
Figure 4
DHRI
Remote Controls
Insert Type
Figure 2
Conduit
Entrance Plate
W
H
W
H
W
H
W
H
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Summary
GENERAL Limitations: Ductwork must be in accordance with one of the fol- lowing: Standards of the National Fire Protection Association forthe installation of Air Conditioning and Ventilating Systems ofother than Resident Type (Pamphlet 90A) or Residential TypeWarm Air Heating and Air Conditioning Sy...
7. Installation in duct larger than heater. For installation where the duct dimensions exceed the insert type heater dimensions, thearea beyond the heater dimensions must be filled with wiremesh, expanded or perforated sheet metal of 50% open area asshown in Figure 11. This will maintain a uniform a...
MOUNTING Multiple Duct Heaters: Up to six duct heaters may be combined into a heating bank as shown in Figure 15. When called for onorder, brackets will be furnished for fastening flange type ductheaters together to form a bank. Heater will be coded for properassembly in the field. Two to six duct h...
