CONTROLS
Dehumidifier
RE
D
YELLOW
BLU
E
GREEN or BROW
N
WHITE
Internal Connections
OPTIONAL
DAMPER
24
VA
C
DMP COMP FAN
DVP-4034748
or
DVP-4034753
IO-DV090
IO-DV090
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11
The DV090 dehumidifier is controlled using five,
color-coded wires:
Green (or brown)
= Fan control
Blue
= Dehumidification (fan and compressor) control
Red
= 24VAC power transformer neutral side
(common with white)
White
= 24VAC power transformer
neutral side (common with red)
Yellow
= transformer high side
Figure 7:
Wiring Connection for DV090 Dehumidifier and DVP-4034748
I
CAUTION!
If an optional damper is not used, do not connect the
white wire to the DVP-4034748 control or damage to
the transformer may result.
I
CAUTION!
DO NOT allow the yellow lead from the unit to contact
the red lead or the white lead from the unit or damage
to the transformers will result.
A 40VA transformer is wired between the red/white lead
and the yellow leads of the DV090. This low voltage power
source powers the relay coils which control the fan and
compressor. This 24VAC transformer can also be used to
power HVAC accessories external to the dehumidifier.
• To turn the dehumidifier ON make
contact between yellow and blue wires.
• To turn the fan ON make contact between yellow and
green(or brown) wires.
• To power an HVAC accessory, connect the accessory to
the white (or red) wire and the yellow wire.
