7
Envirowise XT155H Installation Instructions
The Envirowise XT155H plugs into a common grounded 115 VAC outlet. The device draws 8.0 Amps at
80°F and 60% RH. Locate the dehumidifier in an area where the cord’s length (9') easily reaches a 115 VAC
electrical outlet with a minimum of 15 Amp circuit capacity. If used in an area that may become wet, a GFCI
protected circuit is recommended. Consult local electrical codes for further information.
Envirowise offers a variety of control devices for use with the Envirowise XT155H. The control is to be located
remotely from the dehumidifier and placed in the space to be conditioned. A low voltage (24 Volt) control MUST
be used with the Envirowise XT155H and MUST be connected with low voltage (18-22 gauge) thermostat wire.
GENERAL SET UP
CAUTION!
DO NOT ALLOW THE 24V TERMINAL TO CONTACT THE COM/DMPR TERMINALS ON THE
ENVIROWISE XT155H OR DAMAGE TO THE TRANSFORMER WILL RESULT.
Electrical Precautions
• Do not install the control where it may not accurately
sense the relative humidity such as near HVAC
supply registers, near exterior doors, on an outside
wall, near a window, or near a water source.
• The screw terminals on the Envirowise XT155H and
the control are labeled to prevent confusion.
• Be sure to consult the electrical schematic in the
CONTROLS Section (page 17) of this manual or
inside the access panel of the Envirowise XT155H
before making control connections.
WARNING!
THE REMOTE CONTROLS OF THE ENVIROWISE XT155H ARE POWERED BY A LOW VOLTAGE CIR-
CUIT (24 VAC) AND MUST NEVER CONTACT OR BE CONNECTED TO A HIGH VOLTAGE CIRCUIT.
CAUTION!
SOME OF THE SCREW TERMINALS ON THE ENVIROWISE XT155H MAY NOT BE USED WITH
CERTAIN CONTROLS AND SHOULD BE LEFT UNCONNECTED.
Electrical Requirements
BLK (CORD)
BLK (CORD)
LINE NEUTRAL
WHT (CORD)
WHT-22, WHT (CORD)
BLK-21
BLK-20
BLK-8,20
BLK-8
YEL-11
YEL-9
RED-14, 15
RED-15, 16
COM
WHT-22
24V
BLU-2
BLU-19
BLU-23
DEHU
24V
FAN
DAMPER
COMMON
GRN-17
GRN-12
BLU
YEL-6
COMP.
RELAY
BLOWER
RELAY
3A
BREAKER
COMP.
RELAY
RELAY
RELAY
COIL
BLOWER
RELAY
COIL
COIL
COMP.
BLOWER
DEFROST
SWITCH
XFMR
LINE
RED-5
RED-5, BLU-2
RED-14
RED-16
RED-13
GRN
GRN-10
GRN-4
4038114
BLK-1
BRN-3
BRN
BLK-7
BLK
BLOWER
CAPACITOR
COMP.
CAPACITOR
YEL-18
YEL-18
Wiring Diagram
