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1.0 INTRODUCTION
1.1 Introduction
The #HTK-EXT Exterior Heat Transfer Kit is designed to remove
unwanted heat from your home.
The following model(s) allow a maximum installation of two heat
transfer kits: #CLW-72
The maximum of two heat transfer kits can consist of up to (2) #HTK-
INT, (2) #HTK-EXT, or one of each.
1.2 Approvals
The flexible ducts used with the #HTK-EXT feature are manufactured
and marked to the requirements of UL-181, Class 1 air duct.
1.3 Installation
1.3.1 Installation Precautions
This device must be installed by a qualified installer in accordance
with these instructions and in accordance with local codes, if any, and
with National Electrical Code ANSI/NFPA 70, current edition.
The #HTK-EXT fan will generate sound during operation. The effects
of the increased sound level can be minimized with careful planning
during installation of the system.
CAUTION: Wear protective gloves and safety glasses during
installation. Sheet metal edges are sharp.
Disconnect electrical power supply before performing any
maintenance, repair, or electrical wiring.
WARNING: Failure to install, operate, and maintain the heat transfer
system - exterior in accordance with manufacturer's instructions will
result in conditions which may produce bodily injury and/or property
damage.
Figure 1.1, Possible Air Duct Locations/Terminations
Heat Transfer Kit - Exterior #HTK-EXT
1.3.2 Installation Guidelines
The discharge outlet of the #HTK-EXT must be directed down to
prevent water infiltration.
Minimum Duct Run Length:
Maximum Duct Run Length:
Clearance to flexible duct:
IMPORTANT: The insulated flexible pipe is zero clearance to combustibles
but CANNOT be compressed into a smaller diameter.
NOTE: Support duct at intervals of no greater than 4 feet, with no
more than 1/2" sag between supports as required by local code. Do
not substitute any other duct work as a replacement for the provided
insulated flexible duct.
1.3.3 Painting Requirements
The #HTK-EXT may be painted to a desired color, as long as the paint
selected has sufficient temperature and environmental ratings.
•
Thoroughly sand the existing coating prior to painting with
sandpaper or steel wool.
•
The front of the cap cover may be field-painted and cured up to
400 degrees Fahrenheit (204° C). All remaining parts of the cap
may be painted but they may not be cured beyond 190°F (88°C)
due to gaskets and components overheating.
•
Certain areas of the cap surface may reach up to 600° F (316°C).
Paints selected should have sufficient temperature ratings.
•
Cap contains silicone sealant which could affect adherence of
paint. Please advise local painter of silicone content.
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
3 ft (914mm)
25 ft (7.8m)
0 in
3
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