Honeywell 69-2072-05 User Manual

Owner’s Guide

TrueIAQ

®

Digital IAQ Control

69-2072-05

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User Information

About TrueIAQ® .............................. 1

Operation .................................... 2

Display screen reference ........... 3

Adjusting IAQ settings

Changing humidifier settings ..... 4

Changing dehumidifier settings ... 6

Changing ventilation settings ...... 6

Changing time of day ................. 7

Service timers ............................. 7

Installer Information

Installation .................................. 8

Wiring ........................................ 10

Mounting the outdoor sensor ..... 16

Advanced programming .......... 17

Appendices

Standards ................................. 21

Warranty information ................ 22

Read and save these instructions.

Need Help?

For assistance with this product please visit http://yourhome.honeywell.com

or call Honeywell Customer Care toll-free at 1-800-468-1502

Table of contents

® U.S. Registered Trademark. Patents pending. Par t number DG115EZIAQ.

Copyright © 2008 Honeywell International Inc. All rights reserved.

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The TrueIAQ® monitors and automatically adjusts operation of your whole-house humid­ifier, dehumidifier, ventilator, or bath fan.

Maintaining proper indoor humidity minimizes the potential for unhealthy airborne pol­lutants to grow. Having too little humidity can leave you vulnerable to infections and
uncomfortable dry skin. Too much humidity creates ideal breeding grounds for mold,
mildew and dust mites. Humidified air also feels warmer in the winter, and dry air feels
cooler in the summer.

TrueIAQ can adjust humidity with or without dependency on HVAC equipment opera­tion. If you have both a humidifier and dehumidifier installed, the TrueIAQ can automati­cally change over to the appropriate equipment based on your comfort settings and the
changing outdoor conditions.

TrueIAQ can also deliver fresh air with or without dependency on HVAC equipment
operation. Today’s building codes require homes to be built more tightly for energy effi­ciency, but that tightness can also trap indoor air pollutants, such as cooking odors,
cleaning agents, radon, and carbon dioxide/monoxide. TrueIAQ provides cost-effective
ventilation in accordance to industry standards. In addition, the TrueIAQ can be pro­grammed to deliver ventilation during set times of the day or night.

About TrueIAQ

®

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TrueIAQ® can be used to control the humidity levels in your home, and control fresh air
intake in accordance to industry recommendations (ASHRAE 62.2).

Operation

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M24931

Comfort Settings: Feedback
on your indoor IAQ conditions.

Outdoor Conditions1: Actual
outdoor temperature and
humidity.

Equipment Operation:
Displays what equipment is
operating at a given time.

1

Actual outdoor temperature and humidity will only be displayed if the outdoor sensor is installed.

Maintenance Reminders:
Notifies you when your equip­ment needs service.

Programmable Clock:
Displays time and allows
IAQ equipment programming
based on time.

More: Advances between
installed IAQ equipment control
options.

Done: Saves changes.

Toggle Arrows: Changes the

comfort levels of your IAQ
equipment operation.

Indoor Conditions: Actual
indoor temperature and
humidity.

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Dry: Indoor humidity levels
are below 20% relative
humidity (RH.)

Display screen reference

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M24932

Wet: Indoor
humidity levels are
above 60% RH.

Window Frost: The control is
protecting your home against too
much humidity based on outdoor
conditions. Humidity levels in your
home may not reach your desired
RH% setting as a result.

Indoor temperature
and humidity.

Outdoor temperature
and humidity.

De Humidify: If “Humidify” is dis-

played, the control is calling for
more humidity. If “DeHumidify” is
displayed, the control is calling for
humidity removal.

Ventilate: Fresh air ventilation
is on.

Service Reminders: All are timer-based
and will be displayed to indicate what
service is needed.

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Outdoor Temp. Setting

-20°F (-29°C) 15%

0°F (-18°C) 25%

20°F (-7°C) 35%

Changing humidifier settings

Note: These items will appear only if a humidifier is installed on your system.

1. Set humidifier by pressing UP/DOWN arrows.

Tables below are recommended initial humidity settings based on
outdoor temperature. If window frost setting (see next page) is not
being used, the humidity setting should be adjusted manually when
outdoor conditions change.

Set

Humidify

%

35

M24831

Red font is
blinking on
screen.

If both humidifier (hum) and dehumidifier (dehum) are installed:

Dehum setpoint can only be equal to or higher than Hum setpoint. If equal, equipment
changeover will be at least 5% higher (dehum) or lower (hum).

If not equal, changeover occurs at setpoint plus 2% RH (control’s deadband).

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2. Press “More” to enter Window Frost Protection. Use the UP/DOWN
arrows to set frost protection level.

Changing humidifier settings

M24830

123456789

LESS HUMIDITY

LOOSE HOME/SINGLE-PANE WINDOWS

MORE HUMIDITY

TIGHT HOME/TRIPLE-PANE WINDOWS

On the first cold day after TrueIAQ® is installed, look for condensation
on windows. If present, lower Frost Protection by one. Once set for your
home, Frost Protection does not need to be changed again.

3. Press “More” again to enter operation style. Press the UP/DOWN
arrows to set.

• “Auto”runshumidifierautomaticallyaccordingtosettings.

• “Off”turnsthehumidifieroff.

4. Press “Done” to save settings, or “More” to enter dehumidifier
settings.

Humidify

Window Frost

7

M24832

Humidify

Auto Off

M24833

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Note: These items will appear only if a dehumidifier is installed. If both a humidifier
and dehumidifier are installed, these settings will appear after pushing “More” from the
humidifier operation style screen.

Changing dehumidifier and ventilation settings

1. Set dehumidifier by pressing the UP/DOWN arrows. RH% will change
in increments of five.

2. Press “More” to enter operation style. Press the UP/DOWN arrows to
set.

• “Auto”runsdehumidifierautomaticallyaccordingtoyourRH%

settings.

• “Off”turnsthedehumidifieroff.

3. Press “Done” to save settings, or “More” to enter ventilation settings.

Set

DeHumidify

%

60

M24834

DeHumidify

Auto Off

M24835

Note: These items will appear only if a ventilator is installed.

1. Use the UP/DOWN arrows to run ventilation temporarily. Range is
from 20 to 480 minutes, in 20-minute increments.

2. Press “More” again to enter operation style.

• “Auto”runsventilationaccordingtoinstallersettings.

• “ON”runsventilationcontinuously.

• “OFF”turnsventilationoff.Inthismode,ventilationwillonly

run if turned on by a remote switch.

3. Press “Done” to save settings, or “More” to enter time settings.

Ventilate

Time On

2000

M24836

Ventilate

Auto On Off

M24837

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1. Press “More.” Adjust hour using the the UP/DOWN
arrows.

2. Press “More.” Adjust minutes using the UP/DOWN
arrows.

3. Press “Done” to save settings.

Changing time of day and service timers

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M24934

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Set

M24935

Service Timers

Service timers appear when the humidifier, dehumidifier,
ventilator, air filter, and/or UV bulbs need service. Your HVAC
technician will set these timers during installation.

Resetting Service Timers

Press and hold the DOWN arrow for 5 seconds to reset your
service timers.

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M24933

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Installation

1. Turn system power off.

2. Choose a location. TrueIAQ® can be mounted to a wall or directly to the return duct.

CAUTION: ELECTRICAL HAZARD. Can cause electrical shock or
equipment damage. Disconnect power before beginning installation.

M24787

E
L
E
C
T
R

O
N
I
C
A
I
R
C
L
E
A

N
E
R

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Installation

3. Loosen the cover screw.

4. Separate the front housing from the base.

M24814

5. For wall mounting, run wires through
the back hole to the terminals. Wire
size for all connectors:
2 x 18 AWG to 1 X 22 AWG.

Install the mounting plate using two

screws.

M24818

6. For duct mounting, (A) snap out side wall clip and attach
as shown. Run wires through the side wall hole, under
the clip, to the terminals. (B) Snap in sensor cap.

7. Reinstall the front housing on the power base, and
secure with screw.

Note: If duct mounted, ensure sensor cap tip aligns with
air flow in duct.

8. Apply power to the system.

M24854

A

B

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Pin Pin description Pin capacity

R 24V supply. Must be common to G output. 24Vac±20% 1.5

amp max
C 24V supply common. 24Vac±20%
Sensor Communication and supply bus to remote

sensors (sensor pins not polarized).

24Vdc 64mA max

out

Sensor
Switch Override switch input. Active when R is

applied

24Vac±20%,

10mA max in
W W input to sense when the thermostat is

calling for heat. Active when R is applied.

24Vac±20%,

10mA max in
G G input to sense fan calls. Active when R is

applied. Fan output to activate system fan.
R8222 Isolation Relay may be required if G
is not isolated through the thermostat.

24Vac±20%,

10mA max in

24Vac from R,

1Amp max out
Vent 1 Dry contact output. Opens the vent

damper of an HRV or the bathroom fan
and Damper.

24Vac from R,

1Amp max out

Vent 2

Dehum 1 Dry contact output. Starts the

Dehumidifier or an alternate fan speed.

24Vac from R,

1Amp max out

Dehum 2
Hum 1 Dry contact output. Starts the Humidifier. 24Vac from R,

1Amp max out

Hum 2

Wiring

M24819

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Wiring

Wiring TrueIAQ® with a non-powered humidifier.

HVAC

THERMOSTAT

M27340

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R

C

W

Y

G

R

C

SENSOR

SENSOR

SWITCH

W

G

VENT

VENT

DEHUM

DEHUM

HUM

HUM

24V

TRANSFORMER

HE225

BYPASS

HUMIDIFIER

TrueIAQ

+

–

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Wiring

HVAC

THERMOSTAT

HUM

HUM

24V

24V

GYWRRc

GYWRC

24V

24V

HUM

HUM

C

GT

R

RT

GF

EXT

RECOMMENDED

PRESSURE

SWITCH

M27341

TrueSTEAM - INTERNAL

NOTE: IF PRESSURE SWITCH IS USED, ENSURE DIP 5 IS IN ON POSITION.

FACTORY

INSTALLED

JUMPER

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TrueIAQ

Wiring TrueIAQ® with a
powered humidifier.

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Wiring

M27390

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R

C
SENSOR
SENSOR

SWITCH

W

G
VENT
VENT

DEHUM
DEHUM

HUM
HUM

TrueIAQ

EARD-6

TH8110U

YWRRc

OUTDOOR

SENSOR

(PROVIDED)

HVAC

R

C

W
Y

G

CG

DH90 DEHUMIDIFIER

GRAY DAMPER CONTROL
(NOT USED)

RED +24VAC POWER
YELLOW

COMPRESSOR
CONTROL COMM.

BLUE FAN AND
COMPRESSOR CONTROL

GREEN FAN ONLY
CONTROL

1

IF A THERMOSTAT OTHER THAN A TH5110, TH5220, TH5320, TH6110,
TH6220, TH6320, TH8110, TH8320 OR TH8321 IS USED, A RELAY MAY BE
REQUIRED TO ISOLATE THE G WIRE.

1

Wiring TrueIAQ® with a dehu­midifier and ventilation damper.

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Wiring

M27391

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R

C
SENSOR
SENSOR

SWITCH

W

G

VENT

VENT
DEHUM
DEHUM

HUM
HUM

TrueIAQ

TH8110U

YWRRc

OUTDOOR

SENSOR

(PROVIDED)

HVAC

R
C
W
Y
G

CG

RED

BLACK
GREEN

2

IF A THERMOSTAT OTHER THAN A TH5110, TH5220, TH5320, TH6110, TH6220,
TH6320, TH8110, TH8320 OR TH8321 IS USED, A RELAY MAY BE REQUIRED TO
ISOLATE THE G WIRE.

FOR WIRING OF HUMIDIFIER OTHER THAN THE HE265 READ THE INSTALLATION
INSTRUCTIONS.

1

2

HE265

R

C

L1

L2

24 VOLT/40VA
TRANSFORMER

ERV/HRV

1

Wiring TrueIAQ® with a
humidifier and HRV/ERV
ventilator.

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Wiring

Wiring TrueIAQ® with a non­powered humidifier, ventila­tion damper, and an auxiliary
exhaust fan.

2

IF A THERMOSTAT OTHER THAN A TH5110, TH5220, TH5320, TH6110, TH6220, TH6320, TH8110, TH8320
OR TH8321 IS USED, A RELAY MAY BE REQUIRED TO ISOLATE THE G WIRE.

FOR WIRING OF HUMIDIFIER OTHER THAN THE HE265 READ THE INSTALLATION INSTRUCTIONS.

IF A RELAY OTHER THAN THE R8239 IS USED, A DEDICATED TRANSFORMER WITH AT LEAST 40 VA IS
REQURED TO POWER THE HE265 AND EARD. IF AN R8239 IS USED (AS SHOWN IN THIS DIAGRAM) NO
ADDITIONAL TRANSFORMER IS REQURED.

1

M27392

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R

C
SENSOR
SENSOR

SWITCH

W

G

VENT

VENT
DEHUM
DEHUM

HUM
HUM

TrueIAQ

EARD-6

TH8110U

YWRRc

OUTDOOR

SENSOR

(PROVIDED)

HVAC

R

C

W

Y

G

CG

1

2

HE265

R

W

C

Y

G

YELLOW

BLACK

BLACK

WHITE

120 VOLT POWER

L1

L2

R8239 FAN CENTER RELAY

EXHAUST FAN

3

3

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Mounting the outdoor sensor

1. Do not mount on the south side of the house or in direct exposure to sunlight.

2. Keep at least 4 feet away from exhaust
vents.

3. If in an air intake, place 1 foot closer to
outside wall.

4. Place at least 6 inches higher than
possible snow buildup.

5. Do not route sensor wire near high
voltage wires.

Note: The sensor can be extended using
18-gauge wire.

M24821

M24822

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Advanced HVAC installer setup instructions

1. Press and hold the UP/
DOWN arrows for 3 seconds.

M24823

2. Press “More” to advance to the
next setup option. See table on
next page.

3. Use the UP/DOWN arrows to
select options. See table on next
page.

4. Press “Done” at any time to save and
return to the home screen.

M24825

M24824

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Advanced programming

Setup functions Settings & Options (factory default in bold)

10 Temperature Display 1=Fahrenheit; 2=Celcius
15 Frost Protection 0=Not installed

1=Frost Protection OFF

2=Frost Protection ON
20 Humidity High Limit 5%-80% in 5% increments; 40%
25 Humidifier Operation 0=Hum only while heat on

1=Hum only while fan on

2=Hum forces fan on
3=Hum operates indepen-

dent of fan
30 Programmed Humidity 0=OFF; 1=ON
35 Program Start Time

(appears only if ISU30=1)

15 min increments

11:00 PM

40 Program End Time

(appears only if ISU30=1)

15 min increments

7:00 AM

45 DEHUM Terminal

Equipment Type

0=No Dehum (low speed vent)

1=Dehum only

50 High Dehum Limit 35%-80%, in 5% increments
55 Low Dehum Limit 35%-80% in 5% increments
60 Dehumidifier Operation 0=Dehum forces fan on

1=Dehum operates independent of fan

65 Humidity Display Offset Set between -5% to 5% to recalibrate humidity sensing

0=OFF (no offset)

80 Hum Service Timer 0,1,3,6,12 (months continuous)

To be used by qualified HVAC technician.

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Advanced programming

Setup functions Settings & Options (factory default in bold)

85 Hum Service Timer 0,1,3,6,12 (months intermittent)
90 Hum Water Filter Service 0,1,3,6,12 (months intermittent)
95 Air Filter Service Timer 0,1,3,6,12 (months continuous)
100 Vent Filter Service Timer 0,1,3,6,12 (months continuous)
105 Vent Service Type 0=Clean ventilation filter

1=Change ventilation filter
110 UV Bulb Service Reminder 0,6,12,24 (months continuous)
115 Vent Options 0=No vent installed

1=Ventilation using VENT contacts

2=Ventilation using VENT contacts for high speed and

DEHUM contacts for low speed (only if dehum not

installed)

3=Ventilation using VENT contacts and DEHUM contacts

activated together (auxiliary ventilation device such as

exhaust fan)
120 Vent Operation 0=Vent forces HVAC fan on

1=Vent operates independent of HVAC fan

125 Programmed Vent 0=OFF; 1=ON
130 Program Start Time

(appears only if ISU125=1)

15 min increments

5:00 PM

135 Program End Time

(appears only if ISU125=1)

15 min increments

9:00 AM

140 ASHRAE: # of Bedrooms 1-6 bedrooms; 2
145 ASHRAE: Home’s Sq Ft 10=1,000 Sq Ft; up to 50=5,000 Sq Ft

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Advanced programming

Setup functions Settings & Options (factory default in bold)

150 ASHRAE: CFM Setting 3=30 CFM; 4=40 CFM, up to 20=200 CFM
155 Maximum Vent 00; 30%–95%. (00 setting runs to ASHRAE 100%)
160 Vent Shut-offs 0=Auto vent regardless of outdoor conditions

1=Off at 75°F dew point or 99°F air temp

2=Low speed at 65°F dew point or 85°F air temp. Off at

75°F dew point or 99°F air temp

Note: If option 1 or 2 is selected, then ASHRAE 62.2

Standard will not be met.
165 Dehumidification Via

Fresh Air Ventilator

0=Do not use ventilation for dehum

1=Allow vent for dehum per outdoor conditions.

With dehum installed, control to setpoint. Without

dehum installed, control to the Hum setpoint +10%

(max 60%).

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TrueIAQ® Control and Outdoor Sensor

• Operating/Storagetemp:-40°Fto

120°F (-40°C to 50°C)

• CondensationProtection:0-100%

• OperatingRH%:0%to99%non-

condensing (TrueIAQ). Outdoor sensor
protected from condensation.

• Tempreadingrange:-40°Cto50°C
(-40°F to 122°F)

• Tempaccuracywithinrange: 0.4°C

(0.72°F)

• Humidityreadingrange:5%to95%

• Humiditytempaccuratereadingrange:

-20°C to 50°C (-17°F to 122°F)

• Humidityaccuracyoverthatrange:

±4.5%

• Maximumrealtimeclockdriftover1

year: 7 minutes

• Verticalmount tocoveronegangbox

• FlameRating:UL94V-0

• RoHScompliant

• Relaylife:100,000cyclesat1A24Vac

Power Supply

• 24Vac± 20%50,60Hz(TrueIAQ

control)

• 24Vdc2-wireovercommunicationbus,

not polarized (outdoor sensor)

• Protectedagainstvoltagespikes

• Notprotectedagainstovervoltage

connection (ex 120 or 240V)

• Allsetupparametersarestored

indefinitely

In the Event of Power Failure

• Real-timeclockismaintainedfor4

hours

• Alloutputsaredeactivated

• Allsetupparametersarestored

indefinitely

Mechanical Design

Dimensions: 2-3/4” W x 4-3/4” H x 7/8” D
(TrueIAQ control); 2-3/4” W x 3-3/4” H x 7/8”
D (Outdoor sensor)

Weight: .35 lbs (TrueIAQ control); .15 lbs
(Outdoor sensor)

Temperature Unit Display: °C/°F

Environmental standards/life expectancy

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Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422

http://yourhome.honeywell.com

® U.S. Registered Trademark.
© 2008 Honeywell International Inc.
Patents pending.
69-2072—05 M.S. Rev. 07-08

Automation and Control Solutions

Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.

Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Toronto, Ontario M1V 4Z9

5-year limited warranty

Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and
service, for a period of five (5) years from the date of purchase by the consumer. If at any time during the warranty period the prod­uct is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
(ii) call Honeywell Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be
returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr. N., Golden Valley, MN 55422, or
whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the
defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer.
Honeywell’s sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL
NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES
RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER
FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this
limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY
IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
IS HEREBY LIMITED TO THE FIVE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an
implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state.
If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley,
MN 55422 or call 1-800-468-1502. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée, 35 Dynamic
Drive, Toronto, Ontario M1V4Z9.

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