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

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
4.4B Ducting for Fresh Air-Option . 5
4.4C Installation in a Basement or
Crawl Space with an Existing
Forced Air HVAC System . . . . . 5
4.4D Installation in an Attic with
an Existing Forced Air
HVAC System . . . . . . . . . . . . . . 6
4.4E Installation in a Structure with
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
8. Setting the Ventilation Control . . . . . . . . . 8
9. Service . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
9.1 Troubleshooting . . . . . . . . . . . . . . . . . 9
9.2 Refrigerant Charging . . . . . . . . . . . . 11
9.3 Compressor/Capacitor
Replacement . . . . . . . . . . . . . . . . . . 11