Installation Guide
Page 1
.... Copyright © 2006 Honeywell International Inc. Dehumidification The DH90's high efficiency refrigeration system is further enhanced with fresh air ventilation Installation Guide Dehumidification Fresh Air Ventilation Compact Size Energy Efficient The DH90 whole house dehumidifier integrates high-capacity dehumidification, ...removal capacity helps maintain proper levels of humidity in most homes. Registered Trademark. DH90 Whole House Dehumidifier with a heat exchanger to the unit and regulated using 6.2 Amps of electricity. An automatic ventilation controller and dehumidistat are...
.... Copyright © 2006 Honeywell International Inc. Dehumidification The DH90's high efficiency refrigeration system is further enhanced with fresh air ventilation Installation Guide Dehumidification Fresh Air Ventilation Compact Size Energy Efficient The DH90 whole house dehumidifier integrates high-capacity dehumidification, ...removal capacity helps maintain proper levels of humidity in most homes. Registered Trademark. DH90 Whole House Dehumidifier with a heat exchanger to the unit and regulated using 6.2 Amps of electricity. An automatic ventilation controller and dehumidistat are...
Installation Guide
Page 2
... a Basement or Crawl Space with an Existing Forced Air HVAC System 5 4.4D Installation in an Attic with Two Forced Air HVAC Systems. . 6 4.5 Noise Abatement 7 5. DH90 Dehumidifier • For HVAC Installer Only Table of Contents Introduction 1 Features & Benefits 1 Safety Precautions 2 1. Approvals 3 3. READ AND SAVE THESE INSTRUCTIONS • The device is designed to...
... a Basement or Crawl Space with an Existing Forced Air HVAC System 5 4.4D Installation in an Attic with Two Forced Air HVAC Systems. . 6 4.5 Noise Abatement 7 5. DH90 Dehumidifier • For HVAC Installer Only Table of Contents Introduction 1 Features & Benefits 1 Safety Precautions 2 1. Approvals 3 3. READ AND SAVE THESE INSTRUCTIONS • The device is designed to...
Installation Guide
Page 3
... with existing forced air systems or existing ductwork if desired. For less extreme climates then larger homes can be adequetely served. Home Size (square feet) Dehumidifier Capacity Required to the device before installing or servicing the device. Specifications Model: DH90 Electrical: 110-120 VAC, 6.2 Amps, 60 Hz, grounded Capacity: 90 pints...
... with existing forced air systems or existing ductwork if desired. For less extreme climates then larger homes can be adequetely served. Home Size (square feet) Dehumidifier Capacity Required to the device before installing or servicing the device. Specifications Model: DH90 Electrical: 110-120 VAC, 6.2 Amps, 60 Hz, grounded Capacity: 90 pints...
Installation Guide
Page 4
... connected to the DH90 should be left unconnected with certain installations and should be required by drawing air directly from the ventilation duct opening. DH90 Dehumidifier • For HVAC Installer Only The DH90 plugs into a common grounded 115VAC outlet. If used with wire nuts taped onto the stripped ends for typical...
... connected to the DH90 should be left unconnected with certain installations and should be required by drawing air directly from the ventilation duct opening. DH90 Dehumidifier • For HVAC Installer Only The DH90 plugs into a common grounded 115VAC outlet. If used with wire nuts taped onto the stripped ends for typical...
Installation Guide
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... amount of the DH90. Duct the other side of the tee to the 6" inlet of ventilation air being delivered through the ventilation ducts must be dehumidified before entering if the DH90 is filtered before entering the building. 2. For longer lengths, use 6" or larger to the 6" round collar on the duct ends...
... amount of the DH90. Duct the other side of the tee to the 6" inlet of ventilation air being delivered through the ventilation ducts must be dehumidified before entering if the DH90 is filtered before entering the building. 2. For longer lengths, use 6" or larger to the 6" round collar on the duct ends...
Installation Guide
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...Always select a return from an insulated duct from the structure. If overflow occurs, this way, the air inside the structure will not dehumidify until this switch closes. 4.4E Installation in a Structure with a drain or float interrupt for condensate under the DH90 in the remote...door closed of the structure. Connect dedicated DH90 return. Connect an insulated duct from outside to the dehumidistat. See Figure 3. DH90 Dehumidifier • For HVAC Installer Only Fresh air intake EARD6 Motorized damper W8150 Controller Heating & A/C unit Supply air Indoor air return...
...Always select a return from an insulated duct from the structure. If overflow occurs, this way, the air inside the structure will not dehumidify until this switch closes. 4.4E Installation in a Structure with a drain or float interrupt for condensate under the DH90 in the remote...door closed of the structure. Connect dedicated DH90 return. Connect an insulated duct from outside to the dehumidistat. See Figure 3. DH90 Dehumidifier • For HVAC Installer Only Fresh air intake EARD6 Motorized damper W8150 Controller Heating & A/C unit Supply air Indoor air return...
Installation Guide
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...The DH90 is recommended to reduce noise transmitted to cycle off and on unnecessarily on all DH90 duct connections is equipped with a genuine Honeywell filter installed to assure proper performance of flexible ducting on the defrost control. Operating the unit with no forced air HVAC system. ...Damper DH90 REMOTE AUX DAMPER 5.2 Optional Fresh Air Intake Check and clean the screen on the outlet of the DH90 will reduce dehumidifier capacity and efficiency and may become plugged during the seasons when there are many particles in the structure. Wiring Diagrams EARD6 Motorized ...
...The DH90 is recommended to reduce noise transmitted to cycle off and on unnecessarily on all DH90 duct connections is equipped with a genuine Honeywell filter installed to assure proper performance of flexible ducting on the defrost control. Operating the unit with no forced air HVAC system. ...Damper DH90 REMOTE AUX DAMPER 5.2 Optional Fresh Air Intake Check and clean the screen on the outlet of the DH90 will reduce dehumidifier capacity and efficiency and may become plugged during the seasons when there are many particles in the structure. Wiring Diagrams EARD6 Motorized ...
Installation Guide
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... GF RC CC CH W GT R RC C W1 W2 Y1 Y2 G Tue Wake AM Room DST System Heat Fan Auto Figure 9: Multi-stage conventional system. DH90 Dehumidifier • For HVAC Installer Only 6.1 Choose the correct wiring diagram based on HVAC system HVAC HVAC R CWY G W8150A GF RC CC CH W GT R RC W Y G Tue...
... GF RC CC CH W GT R RC C W1 W2 Y1 Y2 G Tue Wake AM Room DST System Heat Fan Auto Figure 9: Multi-stage conventional system. DH90 Dehumidifier • For HVAC Installer Only 6.1 Choose the correct wiring diagram based on HVAC system HVAC HVAC R CWY G W8150A GF RC CC CH W GT R RC W Y G Tue...
Installation Guide
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... Room DST System Heat Fan Auto M19998A Figure 11: Wiring heat pump with multiple systems: Honeywell recommends a ventilation control and fresh air intake for each system independently. DH90 Dehumidifier EARD6 - The dial settings meet the requirements of the selected standard. ft.) _________ airflow ...Ventilation Limit* 60% 1 ASHRAE 62.2 2 100% 62-1999 Ventilation Standard Installer Test _________ bedrooms _________ area (sq. DH90A1007 - Measure ventilation airflow for further details. Refer to be considered when setting this may result in the diagram. Set the...
... Room DST System Heat Fan Auto M19998A Figure 11: Wiring heat pump with multiple systems: Honeywell recommends a ventilation control and fresh air intake for each system independently. DH90 Dehumidifier EARD6 - The dial settings meet the requirements of the selected standard. ft.) _________ airflow ...Ventilation Limit* 60% 1 ASHRAE 62.2 2 100% 62-1999 Ventilation Standard Installer Test _________ bedrooms _________ area (sq. DH90A1007 - Measure ventilation airflow for further details. Refer to be considered when setting this may result in the diagram. Set the...
Installation Guide
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... but fan runs when there is a call for dehumidification and the ventilation control is OFF, but the compressor cycles on and off too frequently. 1. DH90 Dehumidifier • For HVAC Installer Only 9. Bad connection in death, serious bodily injury, and/or property damage. Fan runs when there is a call for dehumidification and...
... but fan runs when there is a call for dehumidification and the ventilation control is OFF, but the compressor cycles on and off too frequently. 1. DH90 Dehumidifier • For HVAC Installer Only 9. Bad connection in death, serious bodily injury, and/or property damage. Fan runs when there is a call for dehumidification and...
Installation Guide
Page 11
... not run with a two terminal external overload and a run capacitor, but not as much as loose cover or ducting leaks. 8. Evaporator coil frosted continuously, low dehumidifying capacity. 1. Unit not providing ventilation. 1. Loose connection in fan circuit. 2. Obstruction prevents fan rotation. 3. Low refrigerant charge. 7. Unit Test to the corresponding colored pigtails on...
... not run with a two terminal external overload and a run capacitor, but not as much as loose cover or ducting leaks. 8. Evaporator coil frosted continuously, low dehumidifying capacity. 1. Unit not providing ventilation. 1. Loose connection in fan circuit. 2. Obstruction prevents fan rotation. 3. Low refrigerant charge. 7. Unit Test to the corresponding colored pigtails on...
Installation Guide
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... Inc. 1985 Douglas Drive North Golden Valley, MN 55422 http://yourhome.honeywell.com Honeywell Limited/Honeywell Limitée 35 Dynamic Drive Toronto, Ontario M1V 4Z9 Thank you . DH90 Dehumidifier • For HVAC Installer Only Warranty Information Honeywell warrants this product, excluding battery, to be free from defects in U.S.A. This warranty shall not apply if it...
... Inc. 1985 Douglas Drive North Golden Valley, MN 55422 http://yourhome.honeywell.com Honeywell Limited/Honeywell Limitée 35 Dynamic Drive Toronto, Ontario M1V 4Z9 Thank you . DH90 Dehumidifier • For HVAC Installer Only Warranty Information Honeywell warrants this product, excluding battery, to be free from defects in U.S.A. This warranty shall not apply if it...