Data Aire gForce DX - Controls and System Operation; dap4 Microprocessor Control Panel; Electronic Expansion Valve Drive (EDV)

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7.0 CONTROLS
dap4™ Microprocessor Control Panel
The standard controller on all gForce GT equipment is the dap4™ microprocessor control
panel. The panel includes unit control functions and display normal functions and service
diagnostics on a backlit liquid crystal display (LCD). The panel allows recall and display of the
high and low temperature for the last 24 hours, high and low humidity for the last 24 hours,
current percent of capacity and average percent of capacity for the last hour of operation for
compressor, reheat, humidification, dehumidification, component runtimes (if applicable) for fan
motor(s), reheat, humidification, and dehumidification. This state-of-the-art control panel has a
separate manual that goes into extensive detail regarding functions, features, programming and
troubleshooting.
NOTICE: The dap4™ microprocessor control panel has an entire manual
dedicated to its use and operation. This manual must be referenced to
complete a thorough unit installation. Start-up is not complete until the
dap4™ control panel settings are established.
Remote Heat Exchangers
Most of the controls on remote condensers, condensing units and fluid coolers consist of basic
electromechanical type components. Remote heat exchangers have a separate User Manual
which gives complete details on adjusting thermostat settings, etc. Also refer to Section 3.5 of
this manual.
Electronic Expansion Valve Drive (EDV)
Setup Using Display Panel Guide
EVD Display Panel enables viewing and changing of critical system info:
• Values which can be viewed only:
- Suction Temperature
- Electronic Expansion Valve pressure
- Superheat
• Values that may be changed:
- Superheat set-point
- Manual opening/closing of Electronic Expansion Valve (EEV) to a fixed position
WARNING: Pressure relief lines(s) must be vented to the atmosphere per
the latest edition of ASHRAE Standard 15 and/or any local building, fire or
mechanical codes. The information presented here is intended solely for
communication with a Data Aire factory technician regarding critical
system health for the purpose of enabling Data Aire to offer meaningful
technical support.
This guide is not intended to be used as a means of altering the values which are set at the
factory. Any changes made must be first discussed with a Data Aire trained technician.