Page 1
68-0244-1
HE225A,B and HE265A,B
whole-house air quality system
APPLICATION
The Enviracaire Elite™ HE225A,B and HE265A,B Bypass
Flow-through Humidifiers use the warm air furnace blower to
provide humidification for the whole house.
Bypass Flow-Through
Humidifiers
PRODUCT DATA
FEATURES/BENEFITS
• Anti-microbial coating on pad prevents the surface
growth and migration of bacteria, mold, fungus and
algae on the humidifier pad.
• Bold new look with blue and white styling.
• Proven technology used for high performance
humidification and enhanced comfort.
• Preassembled for quicker installation.
• Small footprint, light weight, and reversible
components allow easy mounting on either warm air
supply or return air duct of any forced air furnace.
• Interior components designed for quick maintenance
and service.
• Includes easy-to-use humidity control that mounts on
the wall or duct for more flexible installation.
• Continuous flushing reduces the frequency of
maintenance in a hard water installation.
• AIRWATCH™ Indicator can be installed to remind
homeowner to change humidifier pad.
• Five-year warranty.
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved
Page 2
HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
SPECIFICATIONS
Capacity:
At 120°F (49°C) plenum temperature and 0.20 static
pressure drop across supply and return:
HE225A,B: 12 gallons per day (gpd) or 46 liters per day
(lpd).
HE265A,B: 17 gallons per day (gpd) or 65 liters per day
(lpd).
Electrical Ratings:
24 Vac, 60 Hz, 0.5A.
Humidified Area Size:
See Table 1.
Humidifier Pad Dimensions:
See Table 2.
Table 1. Size of Area That Can Be Humidified.
House Description Air Changes Per Hour
Loose Two 750 70 1,000 93
Average One 1,500 140 2,000 186
Tight One-half 3,000 280 4,000 372
Plenum Opening Dimensions (Height x Width):
See Table 3.
Summer Shut-off Damper Dimensions (Height x Width):
See Table 4.
Bypass Duct Opening (Diameter):
6 in. (152 mm).
Drain Connection:
1/2 in. (13 mm) I.D. plastic hose connected directly to
drain fitting on unit.
Dimensions:
See Fig. 1 and 2.
HE225 Area (Up To) HE265 Area (Up To)
(sq ft) (sq m) (sq ft) (sq m)
Table 2. Dimensions of Humidifier Pads
in in. (mm).
Model Height Width Depth
HE225 9-13/16 (249) 9-1/2 (241) 1-1/2 (38)
HE265 13 (330) 10 (254) 1-1/2 (38)
Table 3. Dimensions of Plenum Opening
Model Height Width
HE225 9-7/16 (241) 9-5/16 (238)
HE265 12-5/8 (321) 9-3/4 (248)
Table 4. Dimensions of Summer Shut-off Damper
Model Height Width
HE225 9-3/16 (234) 8-7/8 (226)
HE265 12-3/8 (314) 9-5/16 (236)
in in. (mm)
in in. (mm).
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
68-0244-1 2
Page 3
HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
WARNING
CAUTION
M14818
9-1/8 (232)
11-7/16 (290)
12-7/16
(316)
6 (152)
DIAMETER
12 (305)
13-9/16
(345)
M14819
9-1/4 (235)
12 (305)
15-5/16
(390)
13-9/16 (345)
16-3/4
(425)
6 (152)
DIAMETER
Models:
HE225A TRADELINE® and HE265A TRADELINE®
Bypass Flow-through Humidifier package includes
humidifier pad, mounting template, self-piercing saddle
valve, 24 Vac transformer, H8908B Convertible
Humidity Control.
HE225B TRADELINE® and HE265B TRADELINE®
Bypass Flow-through Humidifier package includes
humidifier pad, mounting template, self-piercing saddle
valve, 24 Vac transformer, H1008A Automatic Humidity
Control with HumidiCalc+™ Software.
Accessories:
Current Sensor Relay, part no. 32001754-001.
C7089H Outdoor Temperature Sensor.
H8908B Convertible Humidity Control.
H1008A Automatic Humidity Control with HumidiCalc+™
Software (software calculates dewpoint to prevent moisture
condensation).
HC22E Antimicrobial Humidifier Pad (HE225A,B only).
HC26E Antimicrobial Humidifier Pad (HE265A,B only).
HumidiCalc+™ Humidifier Sizing Software (software
calculates required humidifier capacity for application).
PC8900 Control.
S688 Sail Switch.
Fig. 1. Dimensions of HE225A,B in in. (mm).
Fig. 2. Dimensions of HE265A,B in in. (mm).
Approvals:
Underwriters Laboratories Inc. Listing: 56 BL.
Canadian Underwriters Laboratories Inc. Listing: 56 BL.
Standard:
Air Conditioning and Refrigeration Institute Tested:
Standard 610.
INSTALLATION
Hazardous Voltage.
Can cause personal injury or equipment damage.
Do not cut or drill into any air conditioning line or
electrical accessory.
Freezing Water, Flooding or Static Pressure
Hazard.
Can cause water damage to home or permanent
equipment damage.
• The humidifier must be located where the ambient
temperature is above 32°F and below 160°F (0°C
and 71°).
• Be sure supply plenum static pressure is no greater
than 0.3 in. wc and water pressure is no greater
than 126 psi.
IMPORTANT
To assure optimal product performance, be sure the
template is level before marking location.
1. Determine the best location for the humidifier and draw
a level line on the plenum. See Fig. 3.
IMPORTANT
Mount the humidifier at least 3 in. (76 mm) above the
furnace jacket to allow adequate space for the
solenoid valve and drain line. Check that there is
adequate space above the humidifier to remove and
install the humidifier cover.
3 68-0244-1
Page 4
HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
CAUTION
M12248C
HORIZONTAL
DOWN
FLO
LOWBOY
HIGHBOY
M14672
WATER
FEED NOZZLE
FRAME
HUMIDIFIER
HOUSING
WATER
FEED TUBE
HUMIDIFIER
PAD ASSEMBL Y
COVER
SIDEWALL
BY-PASS SIDEWALL
12. Hinge the cover in place and secure with the thumb-
Fig. 3. Typical humidifier installation locations.
2. Tape template in position and trace around template.
3. Remove template and carefully cut rectangular opening.
4. Disassemble the humidifier; remove the cover and take
out the humidifier pad assembly. See Fig. 4.
screw located at the bottom of the cover.
NOTE: Sidewalls are interchangeable for either left or
right bypass installation. To change direction,
remove screws holding each sidewall, switch
sidewall locations and reinstall the screws.
5. Position the humidifier housing in the opening (be sure it
is level), so the locking tabs are in place on the lower
sheet metal edge of the opening.
6. Secure the humidifier housing to the opening at the top
and bottom using sheet metal screws.
7. Locate the other plenum and cut an opening for a 6 in.
(152 mm) collar.
8. Install the 6 in. (152 mm) collar.
NOTE: Be sure to install a duct damper for summer
shutoff on systems with air conditioning.
9. Install a 6 in. (152 mm) diameter duct from the collar to
the humidifier.
NOTE: Some installations require a 90° elbow attachment to
the collar.
10. Seal the duct connections with duct tape.
NOTE: To avoid sagging and stress on the humidifier,
add support when ducting is longer than 4 ft
(120 cm).
11. Reinstall the humidifier pad assembly in the humidifier
housing.
NOTE: Be sure water feed tube is not pinched or
kinked.
Fig. 4. Humidifier components.
WIRING THE HUMIDIFIER
Hazardous Voltage.
Can cause personal injury or equipment damage.
• Disconnect the power supply before installing or
servicing.
• On multi-speed blower applications, do not wire the
high voltage side of the transformer to the same
power source that services the furnace blower.
Premature transformer burnout can occur.
All wiring must comply with applicable local codes, ordinances
and regulations.
1. Mount the transformer in a convenient location.
2. Connect wires to the 120V side of the transformer.
3. Wire the humidifier solenoid valve, current sensing
relay, or sail switch, humidity control and transformer.
Refer to the humidity control installation instructions for
mounting and wiring information.
NOTE: Select models of fan centers include humidifier
taps so the current sensing relay or sail switch
is not needed.
68-0244-1 4
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HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
CAUTION
Humidity Control
Régulateur d'humidité
-20 °F
-10 °F
0 °F
+10 °F
+20 °F
Over 20 °F
15%
20%
25%
30%
35%
40%
HUMIDITY
SETTING
OUTDOOR
TEMPERATURE
-30 °C
-25 °C
-20 °C
-10 °C
-5 °C
Over 0 °C
M14694
PLUMBING THE SADDLE VALVE
Hot or cold water, either hard or softened, can be used in the
humidifier.
1. Use the self-piercing saddle (included) to tap into the
water supply line at an appropriate location.
IMPORTANT
• The saddle valve is not designed to regulate water
flow. The valve is either open or closed.
• To prevent debris from clogging the solenoid inline
filter, be sure to install the saddle valve handle
pointing toward the ceiling.
NOTE: Lightly clean the copper tubing ends with fine
sandpaper before making any connections.
2. Use 1/4 in. O.D. copper tubing and connect saddle
valve to inlet side of solenoid valve.
Hazardous Voltage.
Can cause personal injury or equipment damage.
Do not use any line connected to an air conditioner.
a. Place brass compression nut over copper tubing.
NOTE: Do not over tighten compression nut.
Moderate tightness prevents leaking.
b. Slide the brass ferrule over the tubing.
c. Insert tubing into solenoid valve fitting and support
the valve while tightening the compression nut.
3. Connect a 1/2 in. (13 mm) drain tube to the humidifier
drain fitting and run to a suitable drain.
NOTE: Slope drain tube downward for correct
drainage.
INSTALLING THE DAMPER
IMPORTANT
The damper is specifically designed with snap
features for use specifically with Honeywell
humidifiers. It is not intended for use in any other
application.
To install the damper:
1. Insert the damper into the humidifier with the selector
knob aligned with the forward-facing hole in the
humidifier collar.
2. Twist the damper until it snaps into place.
CHECKING THE INSTALLATION
Use the following procedure to check out the humidifier
installation:
1. Open the saddle valve.
2. Set the thermostat setpoint to 10°F (6°C) above the
room temperature.
NOTE: The furnace blower must be on for humidifier
to operate.
3. Set Convertible Humidity Control to a high setting or
place H1008A Automatic Humidity Control in Test
position.
4. Observe the water running out of the drain line to be
sure the humidifier is working.
5. Check for leaks.
6. Reset the thermostat and Convertible Humidity Control
to a comfortable setting or Automatic Humidity Control
to desired frost factor setting for automatic operation.
OPERATING THE HUMIDIFIER
The HE225A and HE265A
Humidifiers are controlled
by the Convertible Humidity
Control that is installed
either on an interior wall in
the living area or on the
return air duct. Choose the
humidity control setting
using the combination
relative humidity/outdoor
temperature setting scale
on the humidity control dial.
Match the dial setting to the
outdoor temperature for
optimizing the humidity
level while reducing the
moisture condensation on
inside windows. Table 5 can
also be used to adjust the
humidity control to the
recommended setting.
NOTE: As the outside temperature drops, the recommended
setting is lowered to accommodate the effects of
dewpoint. These settings should reduce the
accumulation of moisture and ice on the windows
and in other areas of the house.
Some indoor activities such as cooking, showering and
clothes drying can cause excessive levels of humidity and
start the accumulation of moisture on the windows.
NOTE: If this condition persists for more than a few hours,
set the humidity control to the lowest setting to turn
off the humidifier. If the condition does not improve,
ventilate your home to remove the moisture.
5 68-0244-1
Page 6
HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
CAUTION
M12817
H1008A
The Enviracaire Elite
HE225B and HE265B
Humidifiers are controlled
by the Honeywell H1008A
Automatic Humidity Control
with HumidiCalc+™
Software. The automatic
humidity control is mounted
in the return air duct where
it can be exposed to the
airstream of the return air.
The HumidiCalc+™ Software inside the automatic humidity
control is designed to automatically adjust the humidity level
based on indoor temperature and humidity, inferred or
Table 5. Recommended Convertible Humidity Control Settings.
At Outside Temperature Recommended Setting At Outside Temperature Recommended Setting
-20°F (-29°C) 15 +10°F (-12°C) 30
-10°F (-23°C) 20 +20°F (-7°C) 35
0°F (-18°C) 25 Above 20°F (-7°C) 40
measured outdoor temperature and the frost factor dial
setting. The frost factor allows for variations in furnace size,
window insulation and average daily climate temperature.
The Automatic Humidity Control with HumidiCalc+™ Software
requires an initial adjustment period. Set the frost factor dial
on 5 and use Table 6 to adjust the frost factor —only one
setting a time—increasing the dial setting for more humidity or
reducing the setting if moisture develops on inside windows.
For more precise humidity adjustment, set the frost factor
between dial settings. Allow two days for the humidity level to
subside before making further adjustments. Once the correct
setting is determined, no further adjustment is needed.
HumidiCalc+™ Software takes over and makes any future
adjustments caused by varying outdoor temperatures, thus
reducing moisture build-up on windows while maintaining the
optimal humidity level.
Table 6. Recommended Frost Factor Settings.
Humidity Level Recommended Adjustment
Insufficient humidity Increase the frost factor dial by one setting.
Condensation on windows Decrease the frost factor dial by one setting.
OPERATION
The HE225A,B and HE265A,B Humidifiers use the principle
that vapor (evaporated water) is created when warm air blows
over a water-soaked area. As the vapor circulates, the relative
humidity rises.
The humidity control monitors the relative humidity and
activates the humidifier accordingly. The humidifier has a
water supply that disburses water over an antimicrobial
humidifier pad. The warm dry air from the furnace passes over
the humidifier pad, collects moisture and then circulates it
through the house.
Humidified air feels warmer and more comfortable so the
homeowner may be able to lower the thermostat heating
setpoint and save money on heating fuel bills. The end result
is that the humidifier gives the homeowner a comfortable
environment that is also energy efficient.
MAINTENANCE
A regular maintenance program prolongs the life of the
humidifier and provides a more comfortable environment.
Either hard or soft water can be used in the humidifier.
Frequency of cleaning depends on the condition of the water.
Voltage Hazard.
Can cause electrical shock and equipment
damage.
Disconnect power supply before installing or servicing.
IMPORTANT
Never oil any part of the humidifier.
68-0244-1 6
Page 7
HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
M14672
WATER
FEED NOZZLE
FRAME
HUMIDIFIER
HOUSING
WATER
FEED TUBE
HUMIDIFIER
PAD ASSEMBL Y
COVER
SIDEWALL
BY-PASS SIDEWALL
Every 1 to 3 Months (Depending on Water Quality)
Use the following procedure to clean the humidifier:
1. Disconnect the power and turn off the humidifier water
supply.
2. Remove the humidifier cover. See Fig. 5.
IMPORTANT
To maintain the antimicrobial properties of the
humidifier, use only a Honeywell HC22E or HC26E
Antimicrobial Pad. See Table 8 to select appropriate
pad. Be sure the marked side of the antimicrobial
humidifier pad is facing up for correct performance.
15. Snap the water nozzle back on the tray.
16. Reattach the tray to the frame.
17. Place humidifier pad assembly in humidifier housing
and press until assembly is completely seated. Be
careful not to pinch or kink water feed tube.
18. Replace humidifier cover.
19. Verify humidifier operation by following the steps in the
Checkout Procedure section.
End of Humidification Season
At the end of the heating season, follow steps 1 through 18
from the Every 1 to 3 Months section to clean the humidifier
and shut it off.
IMPORTANT
Be sure the humidifier power is off.
Beginning of Humidification Season
Refer to the Checkout Procedure section to complete the
humidifier startup.
Fig. 5. Location of humidifier parts.
3. Remove the humidifier pad assembly from the
humidifier by grasping the tray and pulling it toward you.
4. Pull one side of the humidifier pad assembly frame
toward you and remove the tray from the frame.
5. Gently pinch the water nozzle catches inward until the
water nozzle can be lifted off the tray.
6. Slide the antimicrobial humidifier pad out of the frame.
7. Carefully scrape any mineral deposits from the tray and
frame. Be sure frame drain hole has nothing blocking it.
8. Check humidifier pad and, if excessive mineral deposits
are present, replace with a new antimicrobial pad.
9. Disconnect the tube from the drain fitting on the bottom
of the humidifier housing.
10. Clean the drain fitting, if necessary.
11. Bend the drain tube to loosen any mineral deposits.
12. Flush the drain tube with pressurized water (a running
tap) to clean the tube.
13. Reattach the drain tube to the drain fitting.
14. Slide humidifier pad back into the frame.
Vacation
When leaving on vacation, turn off the humidifier water supply
and the humidity control. When returning from vacation, turn
on the humidifier water supply and reset the humidity control
to restart the humidifier.
CHECKOUT PROCEDURE
After Winter startup or servicing, use the following procedure
to check the humidifier operation:
1. Turn on the humidifier power and water supply.
2. Turn the Convertible Humidity Control to the highest
setting or place the H1008A Automatic Humidity Control
in the Test position and set the thermostat to 10°F (6°C)
above the room temperature.
3. Observe that water is flowing out of the drain hose.
NOTE: The furnace blower must be on for the humidifier to
operate.
4. Reset the thermostat and Convertible Humidity Control
to a comfortable setting or the H1008A Automatic
Humidity Control to the desired frost factor setting for
automatic operation.
7 68-0244-1
Page 8
HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
TROUBLESHOOTING
Refer to Table 7 for troubleshooting procedures.
Table 7. Troubleshooting Procedures.
Problem What To Look For What To Do
Low humidity Furnace blower not operating • Reset circuit breaker or check for blown fuse.
Rapid air changes. Drafts (cold
air is dry and is an added load to
the humidifier).
High humidity Condensation on walls. • Turn humidity control and water off until condensation
Heavy condensation on
windows.
• Check that the furnace power is on.
• Check all external wiring connections.
• Check the humidity control setting.
• Call a professional heating contractor.
• Keep doors and windows closed.
• Close fireplace damper when not in use.
• Keep exhaust fan running time to a minimum.
• Seal around doors and windows.
is completely evaporated.
• Turn humidity control down low enough to eliminate
condensation caused by moisture from bathing,
mopping, cooking, etc. If moisture persists, more
ventilation is needed.
68-0244-1 8
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HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
M14820
9
10
11
3
6
7
5
4
8
1
2
13
12
8
8
40
30
20
10
50
60
OFF
ON
REPLACEMENT PARTS
Refer to Fig. 6 and Table 8 when ordering replacement parts.
Fig. 6. Exploded view of humidifier parts.
9 68-0244-1
Page 10
HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
Table 8. List of Replacement Parts for HE220A,B and HE260A,B Humidifiers.
Exploded View
Number Description HE225 Part Number HE265 Part Number
1 Side wall 32001612-002 32001626-002
2 Bypass side wall 32001613-002 32001627-002
3 Cover Assembly 32001611-003 32001611-004
4 PerfectFlo™ water distribution tray 32001619-001 32001630-001
5 Antimicrobial humidifier pad HC22E1003 HC26E1004
6 Frame 32001621-001 32001632-001
7 Drain fitting 32001615-001 32001615-001
8 Solenoid valve assembly
32001639-002 32001639-002
(includes water feed tube and nozzle)
9 Saddle valve assembly 32001616-001 32001616-001
10 Transformer (10 VA) 32001652-001 32001652-001
11 Convertible Humidity Control H8908B1002 H8908B1002
12 Automatic Humidity control with
H1008A1008 H1008A1008
HumidiCalc™+ Software
13 Base insert assembly, includes no. 8 above 32001625-003 32001625-004
— Hardware Kit for Solenoid Assembly (same as sole-
32001752-001 32001752-001
noid valve assembly without the solenoid valve)
— Current Sensing Relay 32001754-001 32001754-001
68-0244-1 10
Page 11
HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario
68-0244-1 G.H. Rev. 8-03 www.honeywell.com/yourhome
M1V 4Z9
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
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