Air King 7000 User Manual
Model 7000
Model 7000
M
Installation/Operating
Instructions
# 010921025
FREQUENTLY ASKED QUESTIONS
Question: Why use a flow-through style humidifier rather
than a drum style humidifier?
AA
AAnswer: This will depend on several factors including size of
home, style of furnace, and size of ducting; as well as personal
preference. However in order to use this model flow through
you will require at least 10" wide ducting where as our drum
styles will fit on 8" ducting.
CC
CComment: Flow-through and rotating-drum style evaporative
furnace humidifiers will safely and efficiently humidify 90% of
homes which use forced air heating. As a manufacturer of
both styles there are pro’s and con’s to be considered when
choosing a type of humidifier. A drum style humidifier is
typically 100% efficient in its use of water, meaning all the
water it uses will be delivered to the air. A flow through
humidifier’s efficiency will range anywhere from 20% to 40%,
however this inefficiency is by design. The purpose of
allowing so much water to "flow through" is to continually
flush the evaporator pad of impurities and mineral build up.
The cost of running and maintaining a flow through yearly
(cost of water, electricity & typically an evaporator pad) is
typically less than the cost of running and maintaining a drum
style humidifier.
Question: What type of furnaces will this humidifier work on?
AA
AAnswer: The unit will work on most forced air furnaces
incorporating a heating source, a supply duct, and a return
duct at least 10" in width.
CC
CComment: The technology used in this humidifier to deliver
moisture to the air is not new, it is the simplest and easiest
style, a bypass type evaporative humidifier. Your furnace fan
creates a pressure difference between the supply air (hot, high
pressure) and return air (cold, low pressure). By installing a
bypass tube between the supply and return duct a small
amount of air is forced (via the pressure difference) to flow
from the supply duct through the humidifier’s evaporator pad
and back into the return duct. What will differ from furnace to
furnace or home to home is how much moisture or capacity
you will get from the unit. There are several factors which will
affect this, how old is your home, how old is your furnace,
how well insulated is your home. For example, the capacity
for this unit is 18 US gallons per 24 hrs of operation. This is
based on ARI standards (120’F hot air temp, 60’F water supply
temp, 0.5" static pressure difference between supply & return
duct), used by all humidifier manufacturers. If your furnace is
a hi efficiency or pulse type furnace the hot air temperature
may be less, or the length of time the furnace burner is on
may be less; therefore as a rule of thumb we would say you
would get approx. 75% to 80% of rated output.
Question: How much moisture does the humidifier
deliver to the air in my home?
AA
AAnswer: This model will deliver 18 US Gallons (15 Imperial
gallons, 68 litres) per 24 hours of operation.
CC
CComment: 24 hours of operation means hours of humidifier
operation. The humidifier is designed to operate only when
your furnace is running and in heating mode. 24 hours of
humidifier operation may take 3 days to complete.
Question: How much water does this humidifier use?
AA
AAnswer: This humidifier incorporates a restrictor which
meters the amount of water supplied to the unit. In the
average home the unit will use totally 56 US gallons (47
Imperial gallons, 212 Litres) of water per 24 hours of
operation.
CC
CComment: As mentioned above 24 hours of operation refers
to humidifier operation, the 24 hours operating time may take
3 days to complete. When Compared to the water consumed
during the average shower (3 to 5 gallons per minute) the total
amount of water consumed to humidify your home is not that
much.
Question: I’m replacing an old humidifier on my furnace
can I use the old components?
AA
AAnswer: You should replace all the components to ensure
good operation. You may be able to utilize the existing duct
cut outs for the new install however some reworking may be
required.
CC
CComment: As a rule we like to see you change all the
components, particularly the water supply tube. As over time
minerals, solids, or sludge may have built up, these will very
quickly clog the water inlet of the humidifier, or over time the
tube may have become worn or leaky. Replace the bypass
duct as well, there may be secondary dampers unseen which
will block air or again there may be unseen wear. The same
goes for electrical components or wiring these may be
malfunctioning or worn out. Note: If you have a humidifier
which was interlocked with your furnace (meaning the
humidifier only came on when the furnace came on) then the
old transformer is wired in with your furnace. Do not attempt
to disconnect this transformer from the furnace only
disconnect the low voltage side wires for the humidifier and
tape over the terminals.
Question: I’ve installed the humidifier on my furnace and
it is functioning properly but I do not feel anything and
humidistat reading is not changing, is the humidifier working?
AA
AAnswer: As long as there is hot air going through the
humidifier and there is water getting to the evaporator pad
moisture is being delivered to the air in your home.
CC
CComment: All year, and especially during the winter months
when many combustion appliance are operating in your
home, fresh outdoor air is required to ensure a healthy
environment for your family. Do not think of your home as a
sealed bubble, no matter how well insulated, all homes
breathe (some more than others). The cold dry outside air is
mixing with the air in your home constantly, even when your
furnace is not running. A furnace humidifier will work to
offset the constant effect the dry outside air has on your
home, and your home’s furnishings. Throughout the winter
there is a constant diminishing and replenishing of moisture
levels in the home, conditions inside and out rarely remain
stagnant for any length of time.
2
Model 7000 Flow Through Humidifier
• READ THESE INSTRUCTIONS FULLY BEFORE INSTALLING
THIS PRODUCT.
• SAVE THESE INSTRUCTIONS FOR REFERENCE.
• WHEN DRILLING OR CUTTING INTO DUCTING BE
EXTREMELY CAREFUL NOT TO DAMAGE AIRCONDITIONING COILS OR OTHER FURNACE APPARATUS.
• THIS UNIT MUST BE INSTALLED IN 10" WIDE DUCT
MINIMUM.
• FOR THIS UNIT TO OPERATE PROPERLY YOUR FURNACE
SHOULD ACHIEVE A HEATING TEMPERATURE OF AT LEAST
35’C (95’F) IN ONE MINUTE. IF IT DOES NOT YOU MAY
HAVE TO PURCHASE A SECONDARY ACTIVATION SWITCH
(SOLD SEPARATELY).
• DO NOT INSTALL THIS UNIT WHERE EXTREME
TEMPERATURES EXIST (BELOW 8’C / 45’F OR ABOVE 63’C /
145’F).
• THIS UNIT REQUIRES A DRAIN TO ALLOW WATER TO
FREELY RUN OFF.
• FOR THIS UNIT TO OPERATE PROPERLY IT MUST BE
INSTALLED ON A FORCED AIR HEATING SYSTEM WITH A
SUPPLY DUCT AND RETURN DUCT.
• THE HUMIDIFIER BODY AND THE BYPASS COLLAR DAMPER
ARE TO BE INSTALLED ON DUCTING ONLY. UNDER NO
CIRCUMSTANCES MOUNT ANY COMPONENT TO THE
FURNACE BODY.
• ELECTRICAL WIRING, WATER SUPPLY, AND DRAIN TUBE
MUST NOT KINK OR COME INTO CONTACT WITH SHARP
EDGES OR HOT SURFACES.
• IF REPLACING AN EXISTING FURNACE HUMIDIFIER, WE
RECOMMEND YOU REPLACE ALL COMPONENTS TO
ENSURE PROPER HUMIDIFIER OPERATION.
• THE INSTALLATION OF THIS PRODUCT MUST COMPLY
WITH NATIONAL AND LOCAL ELECTRICAL, PLUMBING,
BUILDING, AND MECHANICAL CODES.
REQUIRED TOOLS
• Safety glasses
• Work gloves
• Electric or cordless drill
• Drill bits (3/8", 1/8", 7/32”, 7/64")
• Tin snips
• Full size Philips or Roberstons screw driver
• Short handle Philips or Roberstons screw driver
• Adjustable wrench
• Utility knife
• Pliers
• Level
• Measuring tape or ruler
• Medium-grit sand paper
• Pencil
SELECTION OF LOCATION
TO MOUNT THE HUMIDIFIER
All bypass type furnace mount humidifiers rely on the pressure
difference which exists between the supply duct (hot air) and the
return duct (cold air) to create an air flow through the
humidifier’s evaporator pad. The air will ALWAYS flow from Hot
(high pressure) to Cold (low pressure).
Selecting the proper location and installing the humidifier
properly as intended by the manufacturer is imperative for the
proper operation of the humidifier. See illustrations below along
with the brief explanations as to what a good installation is and
what is not.
•INSTALLATION TIP: Before starting fully plan out the
installation. Check for the locations of the humidifier,
bypass collar & damper, and the humidistat and
associated sensors. Plan the length and type of ducting
required, the water supply, the water drain, the electrical
wiring, and a constant 120 volt outlet to plug in the
transformer. This will ensure your installation goes as
easy and quickly as possible
1. The humidifier body and bypass tube are installed at eye level,
easily accessible for installation and routine maintenance.
2. The space between the humidifier body and bypass tube are no
more than 30" to ensure maximum air flow through the humidifier.
3. The supplied aluminum flex bypass tube are cut to the proper
length and pulled tight to ensure maximum air flow.
4. The bypass damper is fully open.
5. The humidifier is mounted level on the duct.
6. There is nothing inside the duct behind the bypass collar &
damper or the humidifier body.
7. The humidifier and bypass collar and damper are level.
3
Model 7000 Flow Through Humidifier
INSTALLATION AND OPERATING INSTRUCTIONS:
MODEL 7000 FLOW THROUGH HUMIDIFIER
IDEAL INSTALLATION
SUPPLY DUCT
WARM AIR
RETURN DUCT
COLD AIR
10" wide duct minimum
Bypass collar and
unit level
Bypass tube pulled
tight and cut to length
Water flowing to drain
Damper fully open
No more
than 30"
Figure 1
1. The humidifier body is installed too low and will be difficult to
work on.
2. The humidifier body and bypass collar and damper are not
level. This will restrict air-flow through the humidifier as well
as create uneven air-flow over the evaporator pad and
activating sensor.
3. The bypass damper is not fully open, This will restrict air flow
through the humidifier and reduce output.
4. The humidifier is being drained to a bucket rather than a
proper drain. This will result in damage to the home.
1. The humidifier body and bypass collar and damper are not
level. This will restrict air flow through the humidifier as well
as create uneven air-flow over the evaporator pad and
activating sensors.
2. The aluminum flex bypass tube is not cut to length and is
sagging. This will result in reduced air-flow over the evaporator
pad and will affect the performance of the activating sensors.
1. The bypass collar and damper are installed in front of the
furnace’s air-conditioning coils. This will not only greatly affect
the performance of the humidifier and cause malfunctions in
the activating sensor, the homeowner risked damaging the airconditioning coils.
• INSTALLATION TIP: In this type of installation the
installer should mount the bypass collar and damper at
least 6" above the air-conditioning coils and use hard
metal ducting and elbows (sold separately) rather than
the flex tube. While the humidifier and bypass collar and
damper will not be level the use of hard ducting rather
than the flex ducting will make up for any restrictions or
turbulence which would occur in aluminum flex tube.
1. The bypass collar and damper and the humidifier body are
installed on the same ducting. This unit will not operate at all,
there will be no air-flow through the unit, the air pressure will just
equalize. This will be the case if both components were mounted
on the Return duct (cold air) or on the Supply duct (hot air)
4
Model 7000 Flow Through Humidifier
BAD INSTALLATION
SUPPLY DUCT
WARM AIR
RETURN DUCT
COLD AIR
Bypass tube and
humidifier installed
on the same duct
BAD INSTALLATION
SUPPLY DUCT
WARM AIR
RETURN DUCT
COLD AIR
Air conditioning
A-frame blocking
the air flow
BAD INSTALLATION
SUPPLY DUCT
WARM AIR
RETURN DUCT
COLD AIR
Bypass collar and
humidifier not parallel
Sagging bypass tube
BAD INSTALLATION
SUPPLY DUCT
WARM AIR
RETURN DUCT
COLD AIR
Bypass damper
not open
Unit installed
too low
Unit draining
to a bucket
Figure 5
Figure 4
Figure 3
Figure 2
Loading...