1
TABLE OF CONTENTS
Descriptions and Specifications.......................................................................................................................................1
Installation Restrictions....................................................................................................................................................1
Cautions ..........................................................................................................................................................................2
Recommended Methods and Patterns of Operation....................................................................................................2-3
Recommended Installation and Termination Locations................................................................................................3-4
X
CHANGE
R
TM
Installation ..............................................................................................................................................4-6
Dehumidistat Control Module Installation & Operation ...................................................................................................6
X
CHANGE
R
TM
Ladder Diagram ........................................................................................................................................6
Maintenance ....................................................................................................................................................................7
How to Obtain Service & Warranty..................................................................................................................................7
Replacement Parts & Accessories ..................................................................................................................................7
X
CHANGE
R
TM
is a trademark of Tjernlund Products, Inc.
Tjernlund Products welcomes your comments and questions. Call us at (651) 426-2993, (800) 255-4208, Fax (651) 426-9547, email us
at [email protected] or write to: Customer Service, Tjernlund Products, Inc., 1601 Ninth Street, White Bear Lake, MN 55110-6794.
DESCRIPTION
The X
CHANGE
R
TM
model X2D is a dual fan mechanical ventilator capable of exhausting inside air, providing fresh outside air or provid-
ing a balanced air exchange. The fans can be independently switched on or off or be easily reversed to provide fresh outside air or
exhaust inside air. The X2D includes a dehumidistat control which operates the fan(s) based on the relative humidity sensed by the
control inside the home. The dehumidistat control includes an “On” setting that will operate the fan(s) continuously or the switch can
be turned “Off” so the fan(s) do not operate during undesireable seasons. The X
CHANGE
R
TM
can also be operated by a standard
plug-in timer. Tjernlund’s optional SCP speed control kit is also available if desired.
SPECIFICATIONS
GENERAL INFORMATION
Each X
CHANGE
R
TM
is electrically factory line tested before shipment. After opening carton, Inspect thoroughly for hidden damage.
INSTALLATION RESTRICTIONS
WARNING:
Improper installation, adjustment, alterations, service or maintenance can cause injury or property damage. Refer to
this manual. For assistance or additional information consult a qualified installer, service agency or the equipment supplier.
WARNING:
Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of fuel burning equip-
ment to prevent backdrafting. Follow the heating equipment manufacturer’s guideline and safety standards such as those
published by the National Fire Protection Association (NFPA), and the American Society for Heating, Refrigeration and
Air Conditioning Engineers (ASHRAE), and the local code authorities.
WARNING:
Do not exhaust air from mechanical room unless makeup air is also supplied or equipment in mechanical room is sealed
combustion. Carbon monoxide poisoning may result. Use the DT2-6 6” duct take-off kit so exhaust can be removed from
outside the mechanical room if necessary.
Observe proper location of hood as described on page 3. The X
CHANGE
R
TM
must only be installed with the hood on an exterior wall.
Only X
CHANGE
R
TM
fans can be plugged into dehumidistat control module or damage may result.
Do not discharge intake air onto water pipes or other equipment which may be affected by temperature extremes.
MODEL X2D XCHANGER
Dehumidistat: 20% - 80% RH Range
Rough-in Wall Opening Dimensions: 12 1/4” x 5 1/4””
1 FAN
2 FANS
Voltage
120
120
Watts
20
40
Amps
0.3
0.6
CFM
90
180
