Lennox International Inc Air Cleaner 504 User Manual

AIR CLEANERS/  
FILTERS  
504,887M  
04/2010  
HEALTHY CLIMATE®  
HEPA BYPASS AIR FILTRATION SYSTEM  
HOMEOWNERS MANUAL & DEALER INSTALLATION INSTRUCTIONS  
FOR HEALTHY CLIMATE® MODELS HEPA-20, HEPA-40, HEPA-60  
Rules for Safe Installation and Operation  
Shipping and Packing List  
Package 1 of 1 contains:  
READ AND SAVE  
THESE INSTRUCTIONS!  
1 - HEPA System  
1 - Complete Filter Set (Packed inside Unit)  
1 - Warranty Certificate  
Please read instructions before installing and using the  
HEPA Bypass Air Filtration System (HEPA system).  
This will help you obtain the full benefit of the HEPA  
system you have selected. It will also help you to  
avoid needless service costs.  
1 - Installation Instructions (this manual)  
HEPA System Models  
1. Read this manual carefully. Failure to follow these  
rulesand instructions could cause a malfunction of  
air filter or unsatisfactory service and could void  
your warranty.  
HEPA-20 (X4912) is designed to filter air up to a  
rate of 180 cfm  
HEPA-40 (X4913) is designed to filter air up to a  
rate of 320 cfm  
2. Follow a regular service and maintenance schedule  
to ensure efficient operation.  
HEPA-60 (X4914) is designed to filter air up to a  
rate of 500 cfm  
3. For safety and optimized performance of your  
HEPA system, all installation and maintenance  
must be performed by a Healthy Climate® dealer.  
The installer should be made aware of your  
!
WARNING  
indoor air quality situation and be familiar with your  
heating, ventilation and air conditioning equipment.  
Electrical Shock Hazard.  
Can cause injury or death.  
4. Remove HEPA cartridge packing materials before  
initial start-up of this product.  
Disconnect all electrical power supplies  
before servicing.  
a. Remove safety screws from HEPA filter access  
panel.  
b. Unlatch the four retaining clips and lift off HEPA  
filter access panel.  
c. Remove and discard the cardboard packing  
material between the HEPA cartridge and the filter  
access panel.  
d. Ensure HEPA cartridge is installed and locked into  
place (brace the unit, press HEPA cartridge down  
and turn it clockwise to lock it into place.)  
e. Replace the HEPA filter access panel and latch it  
with the four retaining clips.  
Do not operate equipment without  
access panels in place  
!
WARNING  
Risk of property damage, injury or death.  
Installation, adjustments, alterations, service and  
maintenance must be performed by a Healthy  
Climate® dealer.  
f. Re-install safety screws into HEPA filter access  
panel.  
!
WARNING  
5. High particulate distribution may occur during initial  
start-up of this product after installation or after  
scheduled filter changes. Individuals who are  
highly sensitive to airborne particulates should not  
be in the building and allow 24 hours of operation  
for removal of particulates from occupied spaces  
before re-entry.  
Risk of Carbon Monoxide Poisoning.  
Can cause injury or death.  
Do not operate equipment without access panel in  
place. Operation of this equipment without all access  
panels in place may cause gas fumes from the heat-  
ing system to be drawn into occupied spaces.  
 
General Information  
Media Filters  
The HEPA System’s 3 Stage Filtration Process  
The 3 stage filtration process is used to create a very  
effective filtration system. Each filter is independent  
and can be changed individually.  
Media filters strain particulates from the air. The filter  
media needs to have tiny holes to allow air to pass  
through, but not particulates. Filter types vary for all  
sorts of purposes. The most effective and proven filter  
media is HEPA. HEPA filter media is 99.97% efficient  
at capturing particles which are 0.3 micron in size or  
larger.  
Stage 1: Carbon pre-filter - The inexpensive carbon  
pre-filter removes larger particulates from the air, thus  
prolonging the life of the HEPA filter.  
Stage 2: HEPA - The HEPA filter removes 99.97%  
Inner Charcoal Filter/Carbon Canister  
of particulates 0.3 micron and larger. The cleaned air  
then passes through the third stage filter.  
Carbon media is used to capture chemicals and odors,  
also referred to as V.O.C.’s. Chemicals and odors  
cannot be captured with media type filters. Activated  
carbon attracts chemicals and odors and holds them.  
If air passes through the carbon filter before particu-  
lates are removed, the surface of the carbon quickly  
gets covered with particulates, rendering it ineffec-  
tive at capturing chemicals and odors. If particulates  
are removed from the air with a HEPA filter, virtually  
the entire surface area of the carbon can be used to  
capture chemicals and odors. This increases the effi-  
ciency and filter life of the inner charcoal filter.  
Stage 3: Inner Charcoal Filter - The inner charcoal  
filter is 1/2 an inch thick to give it plenty of surface  
area for removing chemicals and odors from the air.  
OPTIONAL UPGRADE: The stage 3 Inner Carbon  
Filter may be replaced by an optional heavy duty  
granulated coconut shell carbon canister. The VOC  
Canister offers increased capacity removal of chemi-  
cals and odors. Filled with granulated coconut shell  
carbon, the surface area available for adsorption of  
gas and chemical pollution is approximately 60 to  
70 million square feet. The filter upgrade captures  
many contaminents in the air and holds them safely in  
the carbon. The increased capacity of this filter also  
extends the performance life. The VOC Canister also  
captures low level ozone from outside air and uses  
the ozone to turn the filter into an active system which  
actually destroys VOCs rather than just holding them.  
Separate HEPA and Carbon Filters  
HEPA and carbon filters have different life spans. It is  
important for a filtration system to keep the filter com-  
ponents independent from each other, so that the filter  
that is dirty/saturated can be changed. This is more  
economical than a system where you need to throw  
out two or three filters when only one needs changing.  
Product Application Guidelines  
Size of House vs. Air Changes per Hour  
Size of House*  
2
3
2
3
2
2
2
2
2
2
Model  
Unit  
1,000 ft  
1,200 ft  
1,500 ft  
1,800 ft  
2,000 ft  
2,500 ft  
3,000 ft  
3,500 ft  
3
3
3
3
3
3
(8,000 ft ) (9,600 ft ) (12,00 ft ) (14,400 ft ) (16,000 ft ) (20,000 ft ) (24,000 ft ) (28,000 ft )  
HEPA-20  
HEPA-40  
HEPA-60  
1.35  
2.4  
1.13  
2.0  
0.9  
1.6  
2.5  
--  
--  
--  
--  
--  
--  
--  
1.3  
2.1  
1.2  
1.9  
1.0  
1.5  
3.8  
3.1  
1.3  
1.1  
* Chart based on homes with 8 ft. ceilings.  
Notes:  
• Industry experience indicates that one (1) air change per hour generally provides adequate air cleaning. Actual  
results will depend on multiple factors such as outdoor particulate levels, infiltration rate, indoor activities etc.  
• The chart is based on an infiltration rate of 0.3 air changes per hour, which is typical for residential construction.  
Higher infiltration typically brings in more particulates and thus increases the air changes per hour needed for  
HEPA bypass filtration. Other particulate sources in the house will require higher air changes per hour.  
• The chart is based on continuous operation of the HEPA system. If the HEPA system is cycled, the capacity  
of the filter needs to be increased. For example, if the HEPA system is “ON” only half the time, then the capac  
ity of the unit needs be doubled or additional units need to be installed.  
• The more air changes per hour provided, the more effective a HEPA system will be. People with sensitivities  
may desire a higher number of air changes per hour for cleaner air.  
3
 
Parts Identification  
Cabinet Parts  
HEPA Cartridge Parts  
Filter Section Access  
Panel  
HEPA Filter  
(STAGE2)  
Retaining Clips (4)  
Inlet Collar  
Carbon Pre-Filter  
(STAGE 1)  
HEPA Filter Mesh  
(Protects HEPA  
Filter)  
Cabinet  
Outlet Collar  
On/Off Switch  
Inner Charcoal Filter  
(STAGE 3)  
Motor Section  
Access Panel  
figure 1.  
figure 2.  
Inside Cabinet (Filter Section)  
Optional Coconut Shell Carbon Canister  
RECOMMENDED for  
greater capacity removal  
of chemicals and odors.  
Located inside the HEPA  
filter cartrige to provide  
the third and final stage of  
filtration.  
Motor/Impeller  
Filter Adapter  
(threaded)  
Replace inner charcoal  
filter when using the  
‘O’ Ring  
optional carbon canister.  
figure 3.  
figure 4.  
Specifications  
HEPA-20  
180 cfm  
25 lbs.  
HEPA-40  
320 cfm  
35 lbs.  
HEPA-60  
500 cfm  
40 lbs.  
Nom. Air Flow @ 120VAC @ 0.0” E.S.P.  
Weight (max - unpackaged)  
Supply Voltage  
Nom. Measured Power Consumption  
Motor Current Draw  
120 VAC  
125 Watts  
1.0 amps, 60hz  
8”-round  
120 VAC  
125 Watts  
1.0 amps, 60hz  
10”-round  
8”-round  
120 VAC  
225 Watts  
1.8 amps, 60hz  
10”-round  
8”-round  
Air Inlet Collar (max)  
Air Outlet Collar (max)  
6”-round  
Operating Temp. Range - Return air (ºF)  
30 to 95  
30 to 95  
30 to 95  
HEPA filter efficiency = 99.97% @ 0.3 micron particles  
Ambient temperature range: -40ºF to 130ºF  
4
 
Physical Dimensions of Units  
A
H
Filter Section Access Panel  
E
C
Air Inlet  
B
F
Air Outlet  
D
G
Motor Section Access Panel  
MODEL NO.  
A
B
C
D
E
HEPA-20  
14.1  
18  
8.0  
6.0  
1.0  
(358) (457) (203) (152) (25)  
16.13 28.25 10.0 8.0 1.75  
(410) (718) (254) (203) (44)  
16.13 28.25 10.0 8.0 1.75  
(410) (718) (254) (203) (44-)  
HEPA-40  
HEPA-60  
I
A
F
G
H
I
J
HEPA-20  
HEPA-40  
HEPA-60  
2.0  
(51)  
6.5  
(165) (25)  
6.5 1.0  
(165) (25)  
1.0  
(25)  
1.0  
9.0  
15.25 1.4  
(229) (387) (36)  
11.0 17.875 1.875  
(279) (454) (48)  
11.0 17.875 1.875  
(279) (545) (48)  
J
Dimensions in inches (mm)  
figure 5.  
5
 
Operation  
1. Make sure that the unit is plugged into a grounded outlet (120 Volt, 60 Hz).  
2. For optimum performance, the HEPA system should operate when the indoor air handler/furnace blower is  
on. An optional air handler/furnace blower interlock kit can be ordered for ‘cycled’ operation. (see  
Replacement Parts)  
3. Turn the unit on by pressing the on/off switch to the ‘1’ position. The switch should light up when the unit is  
on.  
4. To turn the unit off, press the on/off switch to the ‘0’ position. The switch light should turn off when the unit  
is off.  
Maintenance  
Proper care and maintenance of your HEPA system  
Filter Changing Guidelines  
will ensure years of service. The unit must be turned  
off during service/maintenance or when filters are  
being changed.  
Carbon Pre-Filter:  
Dust and other large particles will collect on the car-  
bon pre-filter over time. The color of the filter will  
change as particulates build up on the carbon pre-filter.  
Change the carbon pre-filter when you can see the par-  
ticulate build up start to clog up the carbon pre-filter.  
It is recommended that gloves and a filtered  
breathing mask be worn during filter replacement.  
!
HEPA Filter:  
WARNING  
As the HEPA filter captures particulates, it will darken  
over time. Replace the HEPA filter when it darkens to  
the level seen in example D.  
Electrical Shock Hazard.  
Can cause injury or death.  
Disconnect all electrical power supplies  
before servicing.  
A. New  
B. Used  
C. Used  
D. Replace  
Do not operate equipment without  
access panels in place  
!
CAUTION  
Inner Charcoal Filter:  
The inner charcoal filter will rarely look used. This fil-  
ter captures odors and gasses, yet the filter’s appear-  
ance will not change. When this filter has reached  
it’s maximum adsorbancy of odors and gasses, it will  
no longer work. Replace this filter when it no longer  
seems to capture odors, at least every 3 months,  
Risk of Sharp Edges Hazard.  
Equipment sharp edges can cause injuries.  
Avoid grasping equipment edges without protective  
gloves.  
Filter Change Schedule  
Note: Failure to properly maintain your HEPA system  
will decrease the efficiency and air flow.  
whichever occurs first.  
Carbon Pre-Filter  
For enhanced odor control, the Coconut Shell Carbon  
Canister provides up to one year of odor capture.  
HEPA Filter  
Inner Charcoal Filter  
Carbon Pre-Filter: 12 months  
HEPA Filter: 2 to 5 years  
Inner Charcoal Filter: 3 months  
Optional Coconut Shell Carbon Canister: 1 year  
NOTE: Filter life is based on average air content. Some  
filters may need to be changed more often due to higher  
amounts of dust, humidity, or chemicals found in your  
ambient air. Additionally, people who are more sensitive  
to these air borne contaminates may desire more fre-  
quent filter changes.  
Optional Coconut Shell  
Carbon Canister  
replaces Inner Charcoal Filter  
Figure 12.  
6
 
Healthy Climate® Dealer Filter Change Instructions  
g. Repeat steps d through f with the other clips,  
!
WARNING  
spacing them evenly on the carbon pre-filter to  
give it even support.  
Electrical Shock Hazard.  
Can cause injury or death.  
3. Inner Charcoal Filter Replacement  
a. Look inside the HEPA cartridge to locate the two  
ends of the inner charcoal filter.  
Disconnect all electrical power supplies  
before servicing.  
b. Pull one end of the old inner charcoal filter in and  
bend it into a loose roll so it can be removed.  
c. Remove the inner charcoal filter from the HEPA  
cartridge.  
d. Remove plastic shrink wrap from the new inner  
charcoal filter.  
Do no operate equipment without  
access panels in place  
!
CAUTION  
Risk of Sharp Edges Hazard.  
Equipment sharp edges can cause injuries.  
e. Unroll the inner charcoal filter and roll it up in the  
opposite direction (this makes the filter follow a  
more contoured profile against the inner HEPA  
filter surfaces and helps keep it in place), place  
the rolled inner charcoal filter inside the HEPA  
cartridge and gently unroll it until the ends ‘butt’  
together and the filter is snug against the HEPA  
filter mesh.  
Avoid grasping equipment edges without protective  
gloves.  
It is recommended that gloves and a filtered  
breathing mask be worn during filter replacement  
to avoid breathing particulates (dust, mold, pollen,  
etc.) captured on the filter that become airborne  
during the filter(s) changeout.  
The old filters should be wrapped and sealed in  
plastic bags immediately upon removal from the  
unit to avoid distributing particles throughout the  
house during the process of disposal.  
4. HEPA Filter Replacement  
a. If replacing the HEPA filter with a new filter, discard  
old HEPA filter and use new when replacing the  
HEPA filter into the unit.  
(continued on pg. 11)  
1. Accessing the filters  
a. Remove safety screws from HEPA filter access  
panel.  
b. Unlatch the four retaining clips and lift off HEPA  
filter access panel.  
c. Bracing the unit so it does not move, turn the  
HEPA cartridge counter-clockwise and lift out.  
Figure 13.  
Figure 14.  
Figure 15.  
2. Carbon Pre-Filter Replacement  
a. Locate the clips holding the carbon pre-filter in place.  
Remove them and pull the carbon pre-filter off.  
NOTE: The carbon pre-filter may contain  
contaminants, remove it slowly to avoid releasing  
particles back into the air.  
b. Remove plastic shrink wrap from the new carbon  
pre-filter.  
c. Wrap the new carbon pre-filter around the HEPA  
filter, making sure that the ends overlap.  
d. Hook one end of the clip onto the overlapping  
section of carbon pre-filter as shown in figure 13.  
e. Press down on the hooked section while you pull it  
across, stretching the carbon pre-filter tighter. as  
shown in figure 14.  
f. Push down on the other end of the clip once the  
carbon pre-filter is stretched tight to lock the clip  
into place as shown in figure 15. Release clip, it  
should hold tight on both ends of the carbon pre-  
filter keeping it together.  
7
 
Healthy Climate® Dealer Filter Change Instructions  
b. With each HEPA replacement filter, a new ‘o’ ring  
the base meet the HEPA filter.  
is provided. The old one is removed by pinching it e. Support the carbon canister with your fingers so it  
between two fingers and pulling it off the collar on  
the blower deck.  
does not slide out when replacing the HEPA  
cartridge assembly into the unit.  
c. Discard old ‘o’ ring.  
d. Place the new ‘o’ ring onto the collar and slide it  
down to the base of the blower deck.  
6. Installing the HEPA Filter Cartridge  
a. With the filters changed or inspected, all 3 filters  
are ready to be placed back into the unit. Place  
the HEPA cartridge gently into the unit (if a carbon  
canister is being used, take care not to let it slide  
out as it is heavy and could damage the unit)  
b. When the HEPA cartridge is in place, brace the unit,  
press down and turn it clockwise to lock it into place.  
c. Replace the HEPA filter access panel and latch it  
with the four retaining clips.  
5. Optional Coconut Shell Carbon Canister  
a. Remove old carbon canister (if installed) by  
pulling it out from the inside of the HEPA filter.  
b. If replacing an inner charcoal filter with the carbon  
canister, remove inner charcoal filter by following  
the steps a. to c. in section 3.  
c. Remove the plastic shrink wrap from the new  
carbon canister.  
d. Slide the carbon canister into the HEPA cartridge,  
smaller, tapered end first. The carbon canister  
should slide all the way in until the metal edges at  
d. Re-install safety screws into HEPA filter access  
panel.  
e. Plug the unit back into a power outlet and turn it on.  
Healthy Climate® Dealer Motor Assembly Replacement Instructions  
3. Installing the new motor assembly  
!
WARNING  
a. Slide the new motor into the motor mount making  
sure that the wires go through the smaller hole  
offset from the center of the bracket.  
Electrical Shock Hazard.  
Can cause injury or death.  
b. Secure the new motor to the motor mount with the  
four screws removed in step 2c.  
d. Connect the wires as follows:  
Disconnect all electrical power supplies  
before servicing.  
- Blue wire from motor to the on/off switch.  
- Yellow/green wire from motor to the ground post.  
- Brown wire from the motor to a capacitor post.  
- Black wire from the motor to the other capacitor  
post.  
Do no operate equipment without  
access panels in place  
Do not use this fan with any solid-state  
speed control device  
- White wire from the on/off switch to the capacitor  
via the black wire piggyback post.  
- White wire from the power cord to the capacitor  
via the other white wire’s piggyback post.  
4. Closing the unit  
a. Replace the motor section access panel and  
secure it with the eight screws removed in step 1b.  
b. Plug the unit into it’s electrical source and turn it on.  
!
CAUTION  
Risk of Sharp Edges Hazard.  
Equipment sharp edges can cause injuries.  
Avoid grasping equipment edges without protective  
gloves.  
1. Accessing the motor assembly  
a. Turn the unit off and unplug it from any electrical  
source before opening the cabinet.  
b. To remove the motor section access panel, remove  
the four screws on the panel, and lift off panel.  
2. Removing the old motor assembly  
a. Disconnect all four motor wires from switch, ground  
post and capacitor.  
b. Disconnect the two white wires from the capacitor.  
c. Separate the motor from the motor mount by  
removing the four screws found in figure 16.  
d. Slide the motor out from under the motor mount  
to remove it from the unit.  
Figure 16.  
8
 
Healthy Climate® Dealer Installation Instructions  
Forced air handler/furnace systems:  
The HEPA system should be installed as a bypass system, with part of the return ducted into the HEPA system.  
The filtered air is then rerouted back into the return air, and continues through the system to be heated/cooled.  
Typical Return to Return Application  
For homes with upflow forced air handler/furnace  
systems.(Air handler/furnace is shown in a typical base-  
ment. See  
Typical Return to Return Application  
For homes with horizontal forced air handler/furnace  
systems. (Air handler/furnace is shown in an typical  
attic. See figure 7.)  
A
Figure 6.)  
Distance between A and B should  
be 8’ to 16’ for best results  
Air Handler/  
Furnace  
A
B
Distance between  
A and B should  
be 8’ to 16’ for  
best results  
Air Handler/  
Furnace Filter  
B
HEPA System  
Figure 7.  
Figure 6.  
NOTE: This filtration system is an ADDITIONAL filter, and does NOT replace the existing air handler/furnace system filter.  
collars face down, metal elbows must be connected  
to both inlet and outlet collars.  
Preparation:  
Here are some things to consider as you decide where  
to install the HEPA system.  
• Each connection must be sealed with aluminum  
tape or mastic, including all take offs.  
• Installed duct runs should be as straight as possible  
(if the duct runs are too long, reduced CFM may  
result).  
• If duct is exposed to unconditioned air, externally  
insulated flex duct is highly recommended.  
• Externally insulated flex duct can also be used for  
noise reduction purposes  
• For best indoor air quality, do not use ductboard or  
fiberglass inside of ducts.  
Electricity:  
• The unit must be plugged into a grounded 120V,  
60Hz outlet.  
Required Materials for Installation of Unit:  
For Model: HEPA-20  
Location:  
• Make sure there is room to open the HEPA filter  
access panel for filter changes/inspections.  
• Keep the HEPA system in a location where you  
can still access the air handler/furnace filter.  
• Keep the HEPA system away from possible water  
damage.  
• Vibration pads will reduce vibration for installations  
where the unit is placed on the floor.  
• Install HEPA System on floor or suspended platform.  
If the unit is suspended, screws must not penetrate  
through the cabinet. Make sure that you have the  
proper chains/straps/joists and equipment to keep  
unit secure.  
Inlet (Marked as ‘Air In’ on unit):  
8” diameter flex or rigid duct (as required)  
6” diameter flex or rigid duct (as required)  
8” diameter 45 degree takeoff  
6” diameter 45 degree takeoff  
Aluminum tape or mastic  
Misc. hanging materials - field provided  
For Models: HEPA-40 & HEPA-60  
10” diameter flex or rigid duct (as required)  
8” diameter flex or rigid duct (as required)  
10” diameter 45 degree takeoff  
• Inlet ducts should be installed upstream of any  
humidifiers and be installed on the main return.  
• Inlet duct should be installed at least 8 ft. away  
from the outlet duct on the main return.  
• Use a 45 degree takeoff to draw air from the main  
return.  
Outlet (Marked as ‘Clean Air Out’ on unit):  
• Outlet duct should be installed as close to the air  
handler/furnace inlet as possible but not directly into  
the return air elbow of the main return.  
• To reduce static pressure, install outlet with a 45  
degree takeoff directly up-line from the return air elbow.  
• If the unit is being installed independently of any  
other system, room diffusers are recommended to  
help distribute airflow evenly in the occupied space.  
Ducting:  
8” diameter 45 degree takeoff  
Aluminum tape or mastic  
Misc. hanging materials - field provided  
NOTE: Be sure to review ‘Rules for Safe Installation  
and Operation’ on page 1 of this document before  
start-up of this unit.  
• If HEPA system is installed where inlet and outlet  
9
 
Healthy Climate® Dealer Installation Instructions  
Forced air handler/furnace system with an HRV/ERV  
This application provides filtration of all Outdoor Air (OA) that is brought into the home through the HRV/ERV,  
thus reducing the introduction of dust, pollen and mold from the outdoor air. For systems that have HRV/ERV  
units installed, we recommend ducting the ‘fresh air’ outlet from the HRV/ERV into the HEPA system. If the  
HRV/ERV CFM (cubic feet per minute) rating is lower than that of the HEPA system, an additional return needs  
to be installed into the HEPA system (See figure 8.) The output air from the HEPA system then needs to be  
installed into the main return of the air handler/furnace system.  
Example of Return  
to Return Installation  
with an HRV/ERV  
For homes with a forced  
Preparation:  
Here are some things to consider as you  
decide where to install the HEPA system  
with an HRV/ERV.  
/ERV  
air handler/furnace sys-  
tem and an HRV/ERV  
system.  
Location:  
• Make sure there is room to open the  
Additional Return  
HEPA filter access panel for filter  
changes/inspections.  
• Keep the HEPA system in a location  
where you can still access the air han-  
dler/furnace filter.  
Air Handler/Furnace  
Air Handler/Furnace Filter  
HEPA System  
Figure 8.  
• Keep the HEPA system away from pos-  
sible water damage  
• Vibration pads will reduce vibration for  
installations where the unit is placed on  
the floor.  
NOTE: This filtration system is an ADDITIONAL filter, and does NOT  
replace the existing air handler/furnace system filter.  
• Each connection must be sealed with aluminum  
tape or mastic, including all take offs.  
• Installed duct runs should be as straight as possible  
(if the duct runs are too long, reduced CFM may  
result).  
• If duct is exposed to unconditioned air, externally  
insulated flex duct is highly recommended.  
• Externally insulated flex duct can also be used for  
noise reduction purposes  
• For best indoor air quality, do not use ductboard or  
fiberglass inside of ducts.  
Electricity:  
• Install HEPA System on floor or suspended platform.  
If the unit is suspended, screws must not penetrate  
through the cabinet. Make sure that you have the  
proper chains/straps/joists and equipment to keep  
unit secure.  
Inlet (Marked as ‘Air In’ on unit):  
• Most HRV/ERV systems will not move as much air  
as the HEPA system. For these systems, install an  
additional return from another treated air source  
into the HEPA system.  
• The unit must be plugged into a grounded 120V,  
60Hz outlet.  
• If using an additional return duct, it should be  
installed upstream of any humidifiers. The fresh  
air outlet of the HRV/ERV should be “Y” connected  
to the additional return duct then connected to the  
inlet of the HEPA system.  
Required Materials for Installation of Unit:  
For Model: HEPA-20  
8” diameter flex or rigid duct (as required)  
6” diameter flex or rigid duct (as required)  
6” diameter 45 degree takeoff  
• The additional return duct (if any) should be  
installed at least 8 ft. away from the outlet duct on  
the main return.  
Aluminum tape or mastic  
• Duct both the HRV/ERV and the additional return  
into the inlet of the HEPA system.  
Misc. hanging materials - field provided  
For Models: HEPA-40 & HEPA-60  
10” diameter flex or rigid duct (as required)  
8” diameter flex or rigid duct (as required)  
10” diameter 45 degree takeoff  
8” diameter 45 degree takeoff  
Aluminum tape or mastic  
Misc. hanging materials - field provided  
Outlet (Marked as ‘Clean Air Out’ on unit):  
• Outlet duct should be installed as close to the air  
handler/furnace inlet as possible but not directly into  
the return air elbow of the main return.  
• To reduce static pressure, install outlet with a 45  
degree takeoff directly up-line from the return air elbow  
of air handler/furnace.  
Ducting:  
NOTE: Be sure to review ‘Rules for Safe Installation  
and Operation’ on page 1 of this document before  
start-up of this unit.  
• If HEPA system is installed where inlet and outlet  
collars face down, metal elbows must be connected  
to both inlet and outlet collars.  
10  
 
Healthy Climate® Dealer Installation Instructions  
Independent Operation:  
The HEPA systems can be used independently of any other equipment! The inlet and outlet of the filtration  
system can be ducted into the same room to create a cleaner environment almost anywhere. The inlet or outlet  
can also be ducted elsewhere. The inlet and outlet should be installed on opposite sides of the room; however,  
this varies according to your specific needs.  
Example of Single Room Stand Alone System Installation  
For single rooms where increased filtration is desired such as a  
dedicated ‘smoking room’.  
Preparation:  
Here are some things to consider as you  
decide where to install the HEPA system  
independently of other systems.  
HEPA System  
Air should be drawn from  
location B if space is avail-  
able, otherwise, use loca-  
tion A.  
Location:  
• Make sure there is room to open the  
HEPA filter access panel for filter  
changes/inspections.  
A
• Keep the HEPA system away from  
possible water damage.  
• Vibration pads will reduce vibration for  
installations where the unit is placed on  
the floor.  
B
• Install HEPA System on floor or suspended  
platform. If the unit is suspended, screws  
must not penetrate through the cabinet.  
Make sure that you have the proper  
chains/straps/joists and equipment to keep unit  
secure.  
Figure 11.  
noise reduction purposes  
• For best indoor air quality, do not use ductboard or  
fiberglass inside of ducts.  
Electricity:  
Inlet (Marked as ‘Air In’ on unit):  
• The unit must be plugged into a grounded 120V,  
60Hz. outlet.  
• Inlet ducts should be installed near the floor for  
optimum airflow (see figure 11). If space does not  
allow, then the inlet can be installed in the ceiling.  
• Inlet duct should be installed at least 8 ft. away  
from the outlet duct on the main return.  
Required Materials for Installation of Unit:  
For Model: HEPA-20  
8” diameter flex or rigid duct (as required)  
6” diameter flex or rigid duct (as required)  
8” diameter vent  
• Inlet duct should be installed at opposite end of the  
room from the outlet duct(s) if in the same room.  
• Diffusers are recommended to help distribute  
airflow evenly.  
6” diameter vent  
Aluminum tape or mastic  
Misc. hanging materials - field provided  
Outlet (Marked as ‘Clean Air Out’ on unit):  
• Outlet(s) should be installed in the ceiling away  
from any other air inlet(s)  
• Room diffusers are recommended to help distribute  
airflow evenly in the occupied space.  
For Models: HEPA-40 & HEPA-60  
10” diameter flex or rigid duct (as required)  
8” diameter flex or rigid duct (as required)  
10” diameter vent  
8” diameter vent  
Ducting:  
Aluminum tape or mastic  
Misc. hanging materials - field provided  
• If HEPA system is installed where inlet and outlet  
collars face down, metal elbows must be connected  
to both inlet and outlet collars.  
NOTE: Be sure to review ‘Rules for Safe Installation  
and Operation’ on page 1 of this document before  
start-up of this unit.  
• Each connection must be sealed with aluminum  
tape or mastic, including all vent connections.  
• Installed duct runs should be as straight as possible  
(if the duct runs are too long, reduced CFM may  
result).  
NOTE: For details on the best way to combine HEPA  
filtration with other air quality products see: SERVICE  
AND APPLICATION NOTE IAQ-06-2  
• If duct is exposed to unconditioned air, insulated  
flex duct is highly recommended.  
• Externally insulated flex duct can also be used for  
11  
 
Electrical Diagram  
Figure 17.  
Replacement Parts  
Replacement Part  
Complete Assembly  
Motor Assembly  
HEPA Filter Cartridge w/O-Ring  
Carbon Pre-Filter  
Inner Charcoal Filter  
Carbon Canister  
Optional Blower Interlock (24V relay)  
30 lb. Ultra VOC Canister (Special Order)  
*for optimal VOC & Aldehyde removal  
HEPA-20  
X4912  
X2669  
92X17  
X4137  
X2678  
94X98  
X2680  
N/A  
HEPA-40  
X4913  
X2669  
92X10  
X4138  
92X09  
98X75  
X2680  
95018-15  
HEPA-60  
X4914  
X2671  
92X10  
X4138  
92X09  
98X75  
X2680  
95018-15  
Other Recommeded HEALTHY CLIMATE® Products  
Ventilation Control System (LVCS)  
X4141  
Humiditrol Whole-Home Dehumidification Systems  
EDA-024B  
EDA-036C  
EDA-060D  
94M41  
94M42  
94M43  
Heat and Energy Recovery Ventilators  
HRV1-150  
HRV1-200  
ERV-150  
ERV-200  
X4585  
X4586  
X4583  
X4584  
Use this unit only in the manner intended by the manufacturer. If you have questions, contact Healthy Climate®.  
Contact your local Healthy Climate® dealer to order replacement parts.  
12  
 

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