Broan B98DHV Installation & Operation Instructions

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800.558.1711 Installation & Operation Instructions

CONTROLS

Control Connections

The control and the Dehumidier are labeled to prevent confusion. Depending on the control, some of

the screw terminals on the Dehumidier may not be used. Be sure to consult the electrical schematic in

this manual or inside the access panel of the Dehumidier before

making control connections.

A low voltage control must be used with the Dehumidier.

NOTE: 18 gauge wire needed between the Dehumidier and the external control.

Compressor ON / Fan ON Make contact between 24V and DEHU terminals

Compressor OFF / Fan ON Make contact between 24V and FAN terminals

Power HVAC Accessory Connect the accessory to the DMPR (OR COM) and 24V terminals

Between the COM lead and the 24V TERMINAL is a 40VA transformer. This low voltage power source

powers the relay coils which control the fan and compressors. This 24VAC transformer can also be

used to power HVAC accessories external to the dehumidier.

COM 24VAC Power Transformer Neutral Side

FAN Fan Control

24V Transformer High Side

DEHU Dehumidication (Fan and Compressor) Control

DMPR 24VAC Power Transforme Neutral Side

* Spare Terminal (Open)

B98DHV Terminal Block Control Operation:

COM 24VAC Power Transformer Neutral Side

FAN Fan Control

24V Transformer High Side

DEHU Dehumidication (Fan and Compressor) Control

FLOAT External Low Voltage Float Switch or Water Sensor

(Use Normally Closed Switch)

FLOAT External Low Voltage Float Switch or Water Sensor

(Use Normally Closed Switch)

B120DHV Terminal Block Control Operation:

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Broan B98DHV 98 Pint Dehumidifier