Honeywell He440a, He440a1005, He440a1003, He440, He420b User Manual
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What's New on the HE420
Q
Steam Power Humidifier?
A common question you may receive from dealers and/or homeowners in regard to the recently released
HE420A1009 Whole-House Steam Power Humidifier is what makes this model better than it's predecessors the HE440 (2000-2006) and the previous HE420 (1997-2000)?
A
The table provided below illustrates the new features/benefits of the HE420A1009, and what makes it better
than before.
Warranty
Capacity (gallons)
per day
Square Footage
Covered
Water Filtration
Installation
Requirements
HE420A1009
Steam Humidifier
5 Year
13
3000
• Automatic Flushing
Timer packaged with
HE420A, cleans tank
with minimal water
usage.
• Chlorine Filtration
• Mounting Bracket Frame
(eliminate need for
S- cleats vastly reduces
install time)
HE440A1005
Steam Humidifier
5 Year
12
4000
• Reverse Osmosis
Filtration
• Chlorine Filtration
• Mounting Template
• S-Cleats
• Mounting Bracket
Former HE420
Steam Humidifier
1 Year
13
3000
• Auto Flushing Timer sold
separately
• Chlorine Filtration
• Mounting Template
• S-Cleats
• Mounting Bracket
SPDT Relay for
standard wiring
instruction
Safety Control Relay
Thermal Fan Switch
provides Moisture
On Demand
Humidistat Control
50-9603 RL 01/07
©2007 Honeywell International Inc.
Yes
Yes
Yes
• Auto or Manual
in one Control
• Won't humidify if over
45% RH indoors, or over
o
50
F outside
No
No
Yes
• Auto or Manual
in separate controls
No
No
Yes
• Auto or Manual
in separate controls
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