16
Envirowise XT155H Installation Instructions
A control must be used with the Envirowise XT155H. Envirowise offers the D30 proprietary control. The
D30 allows homeowners to monitor and control relative humidity and proper ventilation levels in their home.
This control is also available with a remote sensing option.
Note: The D30 is sold as an accessory and can be purchased through your installing contractor.
CONTROLS
CAUTION!
DO NOT ALLOW THE 24V TERMINAL FROM THE ENVIROWISE XT155H TO CONTACT THE COM/DMPR
TERMINALS FROM THE ENVIROWISE XT155H OR DAMAGE TO THE TRANSFORMER WILL RESULT.
DO NOT CONNECT THE COM TERMINAL TO THE CONTROL IF THE OPTIONAL DAMPER IS NOT
USED OR DAMAGE TO THE TRANSFORMER WILL RESULT.
• Central Fan Integration – Operates HVAC
fan with dehumidifier operation.
• A/C Sensor – Automatically activates or
deactivates the dehumidifier when the air
conditioner runs.
• High Temperature Cut-Out – Disables
dehumidifier operations if household
temperature reaches the cut-out setpoint.
• Dry-Out Cycle Timer – Automatic fan
cycling to ensure dry and clean coils.
• Auto Reboot – Resumes operation with
prior settings in the event of power failure.
Envirowise D30 Digital Control
Wiring Controls
See D30 manual for detailed instructions.
Circuit Breaker
To prevent damage to the 24 volt control transformer, the Envirowise XT155H comes
with a resettable circuit breaker. Check wiring for any electrical short and repair before
resetting breaker. Resetting the circuit breaker without correcting the electrical short may
result in transformer damage. Be sure to check the electrical schematic in this manual
or inside the access panel of the Envirowise XT155H before making any control
connections. The reset button for the circuit breaker can be found on the back
of the unit.
Control Connections
The control and the Envirowise XT155H are labeled to prevent confusion. Depending
on the control, some of the screw terminals on the Envirowise XT155H may not be used.
Be sure to consult the electrical schematic in this manual or inside the access panel of
the Envirowise XT155H before making control connections.
FRONT VIEW
20 1/4”
21 3/4”
21 3/4”
41 1/2”
37 3/4”
21 3/4”
21 3/4”
BACK VIEW
20 1/4”
SIDE VIEW
Rear View
Circuit Breaker
Reset Button
