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F:\W06\AldesW06\DOCFILES\782DHV-150HInst.doc 782DHV150H-10-00
Rev:10/30/2002
DHV-150H
DEHUMIDIFYING VENTILATOR
INSTALLATION
OPERATION
MAINTENANCE
782DHV12-00
DHV-150H Indoor Air Quality System
Installation, Operation & Service Instructions
Table of Contents
1. Specifications ................................................... 1
2. Installation......................................................... 1
2.1 Location ........................................................ 1
2.2 Electrical Requirements ................................ 2
2.3 Condensate Removal.................................... 2
2.4 Ducting ......................................................... 3
2.4A Installing Duct Collars............................. 3
2.4B Ducting for Dehumidification................... 3
2.4C Ducting for Fresh Air .............................. 3
2.4D Constant Airflow Regulator Option.......... 4
2.4E Installation in a basement ....................... 4
2.4F Installation in an attic.............................. 4
2.4G Installation with (2) HVAC systems......... 4
2.4H Installation without an HVAC system ...... 4
2.5 Quiet Installation ........................................... 5
3. Operation........................................................... 7
3.1 Humidity/Fan Control Panel .......................... 7
3.2 Ventilation Timer & Humidity Control Panel... 7
3.3 Humidity Control Adjustment ........................ 7
3.4 Fan/Filter Switch........................................... 7
3.5 Ventilation Timer .......................................... 7
3.6 High Efficiency Air Filter ............................... 8
3.7 Low Pressure Control.................................... 8
4. Maintenance...................................................... 9
4.1 Standard Air Filter......................................... 9
4.2 High Efficiency Air Filter ............................... 9
4.3 Fresh Air Return ........................................... 9
5. Service............................................................... 9
5.1 Warranty Notice............................................ 9
5.2 Technical description .................................... 9
5.3 Troubleshooting.......................................... 10
5.4 Refrigerant Charging .................................. 11
5.5 Fan Replacement ....................................... 11
5.6 Compressor/Capacitor Replacement........... 11
5.6A Checking Compressor Motor Circuits..... 11
5.6B Replacing Burned Out Compressor........ 12
5.6C Replacing Compressor-Nonburn Out...... 12
5.7 Remote Controls......................................... 12
5.7A Humidity Control.................................... 12
5.7B Ventilation Timer ................................... 13
5.8 Defrost Thermostat ..................................... 13
5.9 Electric Ventilation Damper ........................ 13
5.10 Low Pressure Control ................................ 13
5.11 Condensate Pump Kit ............................... 13
6. Electrical Schematic ....................................... 14
7. Pictorial Electrical Diagram............................ 15
8. Service Parts List............................................ 16
9. The DHV-150H................................................. 16
10. Optional Parts List.......................................... 17
11. Accessories..................................................... 17
12. Warranty Terms............................................... 18
Serial No. ________________________________
Purchase Date ____________________________
Dealer's Name ____________________________
Read the installation, operation and maintenance
instructions carefully before installing and using this
unit. Proper adherence to these instructions is essential
to obtain maximum benefit from your DHV-150H
(Dehumidifying Ventilator) Indoor Air Quality System.
1 Specifications
Model: DHV-150H Indoor Air Quality System
Electrical: 110-120 VAC, 12 Amps, 60 Hz, grounded
Capacity: 145 pints/day @ 80°F, 60% RH
Operating Temp. Range: 53°F min., 105°F max.
Air Flow: 400 CFM without external ducting
290 CFM @ .40 IWG external static
Refrigerant Charge: 2 lb., 2 oz. R-22
Duct connections: round 10" & 6” inlets, 10” outlet
Filter Size: Pleated cloth: 2” X 20” X 24”
High Efficiency: 4” X 20” X 24”
Size (w/o duct collars):
46" long x 25" wide x 20.5 " high
Installed Weight: 145 lb.
2 Installation
2.1 Location
The DHV-150H can be installed in a variety of locations
to meet the owner's needs as listed below. In all cases
keep the following cautions in mind:
• Install the unit INDOORS IN A SPACE THAT IS
PROTECTED FROM FREEZING AND
FLOODING.
• Install the unit with space to access the front panel
for maintenance and service. Also allow easy
access to the filter cover panel. DO NOT INSTALL
UNIT WITH THE FRONT PANEL OR FILTER
COVER PANEL INACCESSIBLE.