Honeywell DH90A1015 - TrueDRY t Dehumidifier Support and Manuals
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Installation Guide - Page 1
... integrates high-capacity dehumidification, fresh air ventilation, and filtration, into a compact and easy to achieve exceptional performance while keeping your energy costs as low as possible.
The dehumidifier removes 90 pints of humidity in most homes. Copyright © 2006 Honeywell International Inc. HVAC Installer: Please leave manual for homeowner.
® U.S. Dehumidification
The...
Installation Guide - Page 2
...Approvals 3
3. Parts List 8
8.
DH90 Dehumidifier • For HVAC Installer Only
Table of Contents
Introduction 1
Features & Benefits 1
Safety Precautions 2
1. Intended Application 3
2. Service 9 9.1 Troubleshooting 9 9.2 Refrigerant Charging 11 9.3 Compressor/Capacitor Replacement 11
Safety Precautions
Read the installation, operation and maintenance instructions carefully...
Installation Guide - Page 3
... must comply with existing forced air systems or existing ductwork if desired. Remember to the device before installing or servicing the device.
Dehumidifier Capacity Required to reduce the indoor humidity levels and increase comfort. Approvals
The DH90 is intended for use in the front of the device to service the filter.
4.1C Support Structure and Suspension
Place...
Installation Guide - Page 4
...All flexible ducting connected to the DH90 should be UL listed. EARD6 MOTORIZED DAMPER FRESH AIR INTAKE
W8150
HEATING AND
CONTROLLER A/C UNIT
SUPPLY AIR
SUPPLY AIR
INDOOR AIR RETURN
DUCTING TO ISOLATED AREAS
M24206
DEHUMIDIFIER ATTIC INSTALLATION
INDOOR AIR SUPPLY
M23798
DH90 Dehumidifier • For HVAC Installer Only
The DH90 plugs into the system's return. Important: Do not...
Installation Guide - Page 5
... to ensure even humidity control throughout the structure.
4.4B Ducting for proper setup instructions.
4.4C Installation in a Basement or Crawl Space with a backdraft damper. Option
Fresh air may require that ducting be branched to isolated, stagnant air flow areas. Exhaust fans are recommended in the 6" collar. The amount of outside air can be dehumidified before entering the...
Installation Guide - Page 6
... etc.). The DH90 will continue to the 6" collar of installation is recommended for the dedicated DH90 return. DH90 Dehumidifier • For HVAC Installer Only
FRESH AIR INTAKE
EARD6 MOTORIZED DAMPER
INDOOR AIR RETURN
W8150 CONTROLLER
HEATING AND A/C UNIT
SUPPLY AIR
INDOOR AIR SUPPLY
INDOOR AIR RETURN
Figure 4: Attic Installation. Adjust a damper in a Structure with the field wire...
Installation Guide - Page 7
... - 24V POWER BLUE - DEHUMIDIFIER AND FAN OPERATION GREEN - Figure 7: Dehumidistat including fresh air ventilation. COMMON RED - 24V COMMON YELLOW - 24V POWER BLUE -
CAUTION: Operate the unit only with a genuine Honeywell filter installed to cycle off and on unnecessarily on the outdoor fresh air intake port seasonally.
FAN OPERATION ONLY
REMOTE
Humidity Control Régulateur d'humidit...
Installation Guide - Page 8
...11 Filter
10" Back Draft Damper
Manual Dehumidistat Control
VisionPRO® IAQ Total Home Comfort Thermostat with multiple systems: Honeywell recommends a ventilation control and fresh air intake for each system independently. TIPS:
• Ventilation control reads new dial setting only when test button is pushed or power is turned on. 2. Patent Pending
W8150A 1001
1
Date installed...
Installation Guide - Page 9
...Defective compressor.
5. Service
CAUTION: Servicing the DH90 with fan switch and ventilation timer OFF.
1. Humidity control set too high or defective. 3. No dehumidification, compressor does not run capacitor.
2. For HVAC Installer Only • Installation Guide
9. Low pressure control open .
Optional Condensate Pump Safety Switch
open .
6. Defrost thermostat open . Unit unplugged...
Installation Guide - Page 10
...DH90 Dehumidifier • For HVAC Installer Only
Fan runs when there is a call for problems next.
5. Fan does not run with fan switch in the field control wiring.
10 Low refrigerant charge.
3. Check control wire connections (check connections at fresh air damper also).
2.
Humidity meter and or thermometer used are out of calibration.
3. Defective defrost thermostat.
6. Defective...
Installation Guide - Page 11
... be recovered before weighing in the system, it must be present to service or a leak, a new charge must be performed by a qualified service person. For HVAC Installer Only • Installation Guide
11
Refer to the unit nameplate for the correct charge weight and refrigerant type.
9.3 Compressor/Capacitor Replacement
This compressor is left in the new charge.
Installation Guide - Page 12
... materials, under normal use and service, for a period of five (5) years from state to repair or replace the product within the terms stated above limitation may not apply to be to state. Automation and Control Solutions
Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 http://yourhome.honeywell.com
Honeywell Limited/Honeywell Limitée 35 Dynamic Drive...
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