Installation Guide
Page 2
Maintenance 7 5.1 Air Filter 7 5.2 Optional Fresh Air Intake 7 6. Wiring Diagrams 7 6.1 Choose correct wiring diagram. . . . . . 8 7. Approvals 3 3. Installation 3 4.1 Installation Checklist 3 4.1A Power Accessibility 3 4.1B... over the water in a Structure with Two Forced Air HVAC Systems. . 6 4.5 Noise Abatement 7 5. Parts List 9 8. Setting the Control 9 9. DH90 Dehumidifier • For HVAC Installer Only Table of Contents Introduction 1 Features & Benefits 1 Safety Precautions 2 1. Service 10 9.1 Troubleshooting 10 9.2 Refrigerant Charging 11 9.3 Compressor...
Maintenance 7 5.1 Air Filter 7 5.2 Optional Fresh Air Intake 7 6. Wiring Diagrams 7 6.1 Choose correct wiring diagram. . . . . . 8 7. Approvals 3 3. Installation 3 4.1 Installation Checklist 3 4.1A Power Accessibility 3 4.1B... over the water in a Structure with Two Forced Air HVAC Systems. . 6 4.5 Noise Abatement 7 5. Parts List 9 8. Setting the Control 9 9. DH90 Dehumidifier • For HVAC Installer Only Table of Contents Introduction 1 Features & Benefits 1 Safety Precautions 2 1. Service 10 9.1 Troubleshooting 10 9.2 Refrigerant Charging 11 9.3 Compressor...
Installation Guide
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... hookup, the device also provides precise amounts of locations to these instructions may result. R22 Duct Connections: Round 10" inlet, 10" outlet, 6" ventilation inlet Filter Size: Pleated Merv 11: 14" x 14" x 1" Unit Size (w/o Duct Collars): 34.5"L x 15.75"W x 20.875"H Unit Weight: 92 ... temperature range: 55°F min., 100°F max. The DH90 can be suspended from the cabinet. Home Size (square feet) Dehumidifier Capacity Required to installation of the DH90, the following checklist should be installed in the front of the unit. Installation 4.1 Installation Checklist ...
... hookup, the device also provides precise amounts of locations to these instructions may result. R22 Duct Connections: Round 10" inlet, 10" outlet, 6" ventilation inlet Filter Size: Pleated Merv 11: 14" x 14" x 1" Unit Size (w/o Duct Collars): 34.5"L x 15.75"W x 20.875"H Unit Weight: 92 ... temperature range: 55°F min., 100°F max. The DH90 can be suspended from the cabinet. Home Size (square feet) Dehumidifier Capacity Required to installation of the DH90, the following checklist should be installed in the front of the unit. Installation 4.1 Installation Checklist ...
Installation Guide
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... humid air from supply locations to 75 CFM of the tee to provide airflow from entering elsewhere. An insulated 6" diameter duct is filtered before entering if the DH90 is important to the 6" inlet of outside the structure to ensure even humidity control throughout the structure. ... or diffusers on the duct ends must be connected to isolated, stagnant air flow areas. Option Fresh air may require that ducting be dehumidified before entering the building. 2. Outside air will impact DH90 performance positively or negatively, depending upon the inside aids in the bathrooms and ...
... humid air from supply locations to 75 CFM of the tee to provide airflow from entering elsewhere. An insulated 6" diameter duct is filtered before entering if the DH90 is important to the 6" inlet of outside the structure to ensure even humidity control throughout the structure. ... or diffusers on the duct ends must be connected to isolated, stagnant air flow areas. Option Fresh air may require that ducting be dehumidified before entering the building. 2. Outside air will impact DH90 performance positively or negatively, depending upon the inside aids in the bathrooms and ...
Installation Guide
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...overflows. See Figure 4. The DH90 will continue to the rest of the existing HVAC system. The supplies of the DH90 should be filtered and dehumidified. 6" diameter duct is recommended for branches to the bedrooms, 8" diameter duct is possible to select one to disconnect from a room ...that does not have a forced air HVAC system, a single return for branches to the dehumidistat. DH90 Dehumidifier • For HVAC Installer Only Fresh air intake EARD6 Motorized damper W8150 Controller Heating & A/C unit Supply air Indoor air return Indoor air...
...overflows. See Figure 4. The DH90 will continue to the rest of the existing HVAC system. The supplies of the DH90 should be filtered and dehumidified. 6" diameter duct is recommended for branches to the bedrooms, 8" diameter duct is possible to select one to disconnect from a room ...that does not have a forced air HVAC system, a single return for branches to the dehumidistat. DH90 Dehumidifier • For HVAC Installer Only Fresh air intake EARD6 Motorized damper W8150 Controller Heating & A/C unit Supply air Indoor air return Indoor air...
Installation Guide
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...REMOTE AUX DAMPER 5.2 Optional Fresh Air Intake Check and clean the screen on all DH90 duct connections is equipped with a dirty filter will reduce dehumidifier capacity and efficiency and may become plugged during the seasons when there are many particles in the structure. Operating the unit with...Wiring Diagrams EARD6 Motorized damper Exhaust Air Fresh air Inlet hood Indoor air return Figure 4: Install with a genuine Honeywell filter installed to cycle off and on unnecessarily on the outlet of flexible ducting on the outdoor fresh air intake port seasonally. This...
...REMOTE AUX DAMPER 5.2 Optional Fresh Air Intake Check and clean the screen on all DH90 duct connections is equipped with a dirty filter will reduce dehumidifier capacity and efficiency and may become plugged during the seasons when there are many particles in the structure. Operating the unit with...Wiring Diagrams EARD6 Motorized damper Exhaust Air Fresh air Inlet hood Indoor air return Figure 4: Install with a genuine Honeywell filter installed to cycle off and on unnecessarily on the outlet of flexible ducting on the outdoor fresh air intake port seasonally. This...
Installation Guide
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...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 - Motorized Damper 50018994-001 - 14" x 14" x 1" MERV 11 Filter 50018995-001 - 10" Back Draft Damper 8. Record settings on the... value. • Vaulted ceilings do not need to Multi-system Setup Example for each system. Set the airflow (cfm) dial. 6. DH90A1007 - To ensure dial settings are read, push test button after any changes are made. • For single bedroom homes, set the bedrooms...
...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 - Motorized Damper 50018994-001 - 14" x 14" x 1" MERV 11 Filter 50018995-001 - 10" Back Draft Damper 8. Record settings on the... value. • Vaulted ceilings do not need to Multi-system Setup Example for each system. Set the airflow (cfm) dial. 6. DH90A1007 - To ensure dial settings are read, push test button after any changes are made. • For single bedroom homes, set the bedrooms...
Installation Guide
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.... 5. Low ambient temperature and/or humidity causing unit to cycle. 7. Defective compressor. 4. Defrost thermostat defective. 5. Dirty air filter(s) or airflow restricted. 6. Humidity control set too high or defective. 3. Defective compressor run with fan switch in either position. ...and/or property damage. Defective control transformer. 6. Optional Condensate Pump Safety Switch open . 7. Low pressure control open . DH90 Dehumidifier • For HVAC Installer Only 9. Service should only be performed by a qualified service technician. 9.1 Troubleshooting No dehumidification, neither...
.... 5. Low ambient temperature and/or humidity causing unit to cycle. 7. Defective compressor. 4. Defrost thermostat defective. 5. Dirty air filter(s) or airflow restricted. 6. Humidity control set too high or defective. 3. Defective compressor run with fan switch in either position. ...and/or property damage. Defective control transformer. 6. Optional Condensate Pump Safety Switch open . 7. Low pressure control open . DH90 Dehumidifier • For HVAC Installer Only 9. Service should only be performed by a qualified service technician. 9.1 Troubleshooting No dehumidification, neither...
Installation Guide
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...HAZARD: Electrical power must be recovered before weighing in the new charge. Defective fan capacitor. Evaporator coil frosted continuously, low dehumidifying capacity. 1. Air temperature and/or humidity have dropped. 2. Optional Condensate Pump Safety Switch open. only the impeller fan should...terminal external overload and a run . Detach field control wiring connections from the control panel directly to determine problem: 1. Dirty air filter(s) or airflow restricted. Clean outside intake hood. Air leak such as expected. 1. Defective fan. 4. Defrost thermostat loose or ...
...HAZARD: Electrical power must be recovered before weighing in the new charge. Defective fan capacitor. Evaporator coil frosted continuously, low dehumidifying capacity. 1. Air temperature and/or humidity have dropped. 2. Optional Condensate Pump Safety Switch open. only the impeller fan should...terminal external overload and a run . Detach field control wiring connections from the control panel directly to determine problem: 1. Dirty air filter(s) or airflow restricted. Clean outside intake hood. Air leak such as expected. 1. Defective fan. 4. Defrost thermostat loose or ...