Dectron LD Series Installation Manual

H – Electric Connection
April, 2018 H-2 INM.XX.X.00
 Dehumidifier with electric heaters
and single-point power connections
must have one power wires set brought
to PDB (normally labeled “L1-L2-L3),
located in electric heater (see Pic. H.2).
 Dehumidifier with electric heaters and
dual-point power connections must be
powered separately from electric heater
- one set of power wires brought directly
to the dehumidifier PDB (located in its
main electric panel), another set –
directly to electric heater.
Outdoor Air Condenser and Fluid Cooler Power and Control Connection
Both, dehumidifier and OACC/OAFC are provided from the factory with their respective wiring diagrams, depicting
equipment internal wiring and connection points (pins, terminals, etc.) for external (“field”) wiring – refer to the
said wiring diagrams, as well as Field Wiring Diagram (part of submittal documentation) as needed.
Power connection to OACC and OAFC must follow same recommendations outlined above; in most cases,
condensers and coolers are equipped with a disconnect – connect power there.
To control OACC/OAFC operation, install control wires between OACC/OAFC and the dehumidifier.
 Use copper gauge 18 multi-strand conductors.
 Refer to specific dehumidifier info for number of conductors. Normally four conductors are sufficient, however
it is recommended to run one or two spare ones.
 Ensure proper wire insulation/protection selection (exposure to cold weather, UV light, etc.)
Field Wiring – External Control and Communication
Although normally dehumidifier is provided with all sensors and control devices, required for its operation,
installed and pre-wired from factory, various external devices and systems could be also connected to the
dehumidifier control system.
 in some cases, outlined above (see Duct Connection and Outdoor/Indoor Air Filter Rack Installation), some air
sensors (supply air, outdoor air, etc.), though pre-wired, may need to be field-installed.
Dehumidifier control system is capable to control remote ventilation and conditioning devices (space heaters,
exhaust fans, OACC/OAFC, etc.) as well as receive/integrate external commands – refer to submittal
documentation, contact factory as needed before connecting to and/or powering any devices from dehumidifier
control board.
Normally, if requested, external sensors/devices connections would be shown on the equipment wiring diagrams.
For case-specific control connections – contact factory.
Pic.H.2
Bring power here
for single-point
connection
Power to
dehumidifier

Dectron LD Series Specifications

General

Brand	Dectron
Model	LD Series
Category	Dehumidifier
Language	English