Tjernlund X2D XCHANGER Reversible Basement Fan 8504164 Rev A 05/10 User Manual
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11. The damper stop prevents unwanted air infiltration through either fan. The Damper stop can be adjusted so the damper does not
swing open into the house by wind or a negative pressure in the house. IMPORTANT: The damper stop prevents the damper from
swinging inward and should not be used if using the X
CHANGE
R
TM
fan to bring outside air in. With the damper stop pushed all the
way forward, the damper will swing both ways. With the damper stop pulled all the way back, the damper will only swing to the
outside. Use the damper stop only if you want to block air infiltration into the house during seasons when the X
CHANGE
R
TM
is not
being used or when using the X
CHANGE
R
TM
only to exhaust air, (See Diagram N).
.
12. WARNING: Unplug fans from dehumidistat control when changing fan direction to prevent damage or injury. Insert fans in desired
direction for either exhaust or intake. See arrow on bottom of fan cartridge or side of fan shroud for air flow direction. Once
installed confirm the air is being exhausted or supplied depending upon application, (See Diagram O).
13. Insulate around X
CHANGE
R
TM
housing with fiberglass insulation, (See Diagram P). IMPORTANT: Do not use expanding foam on
top of X
CHANGE
R
TM
case to prevent binding of damper slides. Make sure damper slides move freely.
XCHANGER DEHUMIDISTAT CONTROL MODULE INSTALLATION & OPERATION
Install X
CHANGE
R
TM
dehumidistat control module on wall with provided screws and
wall anchors and plug X
CHANGE
R
TM
fans into side outlets.
IMPORTANT: Do not plug other devices into dehumidistat control or damage may result.
Once fans are installed in X
CHANGE
R
TM
, plug dehumidistat control into standard outlet.
The X
CHANGE
R
TM
control module includes an adjustable dehumidistat control which
activates the fan(s) if the relative humidity rises above the selected set-point. It is gener-
ally recommended to maintain a Relative Humidity (RH) below 60% to inhibit mold
growth. The dehumidistat can be turned fully clockwise to the ‘on’ position for constant
fan(s) operation or it can be turned fully counter-clockwise to ‘off’ during seasons or
times when it is not desired for the X
CHANGE
R
TM
fan(s) to run. Each X
CHANGE
R
TM
fan
is independently controlled by its own on/off switch. Turn switch(s) off during seasons
or applications where it is not desired to run that fan, (See Diagram Q).
XCHANGER LADDER DIAGRAM
DIAGRAM N
DIAGRAM O
THE DAMPER WILL SWING BOTH WAYS WITH THE
DAMPER STOP PUSHED FORWARD. THE DAMPER
WILL ONLY SWING TO THE OUTSIDE WITH THE
DAMPER STOP PULLED ALL THE WAY BACK.
DIAGRAM Q
SCREW DEHUMIDISTAT CONTROL TO WALL AND
PLUG FANS INTO SIDE OUTLETS.
WARNING: UNPLUG FANS WHEN CHANGING
DIRECTION. SEE ARROW ON BOTTOM OF FAN
CARTRIDGE OR SIDE OF FAN SHROUD FOR
AIR FLOW DIRECTION.
DIAGRAM P
INSULATE AROUND XCHANGER HOUSING.
IMPORTANT: DO NOT USE EXPANDING FOAM
ON TOP OF XCHANGER TO PREVENT BINDING
OF DAMPER SLIDES. MAKE SURE DAMPER
SLIDES MOVE FREELY.
120 VAC
50/60 Hz
DE-HUMIDISTAT
CHANGE CONTROL BOX
HOT BLACK
WHITE
8050022
BLACK
NEUTRAL BLACK
BLUE
RED
RED
RED
RED
R
X
SWITCHED OUTLETS
FAN SWITCH 2
FAN SWITCH 1
XCHANGER FANS
IMPORTANT:
ONLY PLUG
XCHANGER FANS
INTO CONTROL!
FAN ON/OFF
SWITCHES