Williams 400 Series - Manual
Williams 400 Series – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Williams’ “through-the-wall or through-the-
window” gas furnace is an unobtrusive,
self-contained direct-vent system that
installs easily and quickly using a unique
slide-in/slide-out chassis. This design
feature also makes servicing easy.
The quiet centrifugal blower system
delivers warmth evenly throughout the
room. Our compact system offers heating
comfort and economical operation.
Window installed models can be
conveniently removed during the cooling
season.
Design Features
Compact design saves living space
Great for additions, apartments and propane
models are approved for mobile homes
Thermostat mounts on wall or unit
Front or rear gas connection increases installation
flexibility
Dependable solid state ignition
Automatic temperature and safety controls
Natural and propane gas models
Compact
Heating
System
installed in
window
A compact, efficient
and versatile heating
system for add-on
rooms, apartments and
homes!
Compact
Heating System
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