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Table Of Contents; Safety Precautions - Honeywell DH90A1015 - TrueDRY t Dehumidifier Installation Manual

Whole house dehumidifier with fresh air ventilation
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DH90 Dehumidifier • For HVAC Installer Only

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . 1
Features & Benefits . . . . . . . . . . . . . . . . . 1
Safety Precautions . . . . . . . . . . . . . . . . . . 2
1. Intended Application . . . . . . . . . . . . . . . . 3
2. Approvals . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Specifications . . . . . . . . . . . . . . . . . . . . . . 3
4. Installation . . . . . . . . . . . . . . . . . . . . . . . . 3
4.1 Installation Checklist . . . . . . . . . . . . . 3
4.1A Power Accessibility . . . . . . . . . 3
4.1B Accessibility . . . . . . . . . . . . . . . 3
4.1C Support Structure and
Suspension . . . . . . . . . . . . . . . . 3
4.1D Sizing Chart . . . . . . . . . . . . . . . 3
4.2 Electrical Requirements . . . . . . . . . . . 3
4.3 Condensate Removal . . . . . . . . . . . . 4
4.4 Ducting. . . . . . . . . . . . . . . . . . . . . . . . 4
4.4A Fresh Air / Supply Air . . . . . . . . 4
Crawl Space with an Existing
HVAC System . . . . . . . . . . . . . . 6
Two Forced Air HVAC Systems 6
Read the installation, operation and maintenance instructions carefully before installing and
operating this device. Proper adherence to these instructions is essential to obtain maximum benefit
The device is designed to be installed INDOORS IN A SPACE THAT IS
PROTECTED FROM RAIN AND FLOODING.
Install the unit with space to access the front panel for maintenance and service.
Avoid directing the discharge air at people, or over the water in pool areas.
If used near a pool or spa; be certain there is NO chance the unit could fall into the water,
splashed and that it is plugged into a GFI GROUND FAULT INTERRUPT OUTLET.
DO NOT place the device directly on structural members.
A drain pan MUST be placed under the unit if installed above a living area or
above an area where water leakage could cause damage.


Safety Precautions

from your DH90 indoor air quality system.
READ AND SAVE THESE INSTRUCTIONS
4.5 Noise Abatement . . . . . . . . . . . . . . . . 7
5. Maintenance . . . . . . . . . . . . . . . . . . . . . . . 7
5.1 Air Filter . . . . . . . . . . . . . . . . . . . . . . . 7
5.2 Optional Fresh Air Intake . . . . . . . . . . 7
6. Wiring Diagrams . . . . . . . . . . . . . . . . . . . . 7
7. Parts List . . . . . . . . . . . . . . . . . . . . . . . . . 8
9. Service . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
9.1 Troubleshooting . . . . . . . . . . . . . . . . . 9
9.2 Refrigerant Charging . . . . . . . . . . . . 11
9.3 Compressor/Capacitor
Replacement . . . . . . . . . . . . . . . . . . 11

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