Optional Equipment & Features
Electronic Expansion Valve: The module communicates to the dap4 to drive a
stepper motor inside the expansion valve. The module controls refrigerant
superheat and optimizes the efficiency of the refrigerant circuit. It features low
superheat, high evaporation pressure (MOP), and low evaporation pressure (LOP)
protection.
Power Meter Module: The module communicates to the dap4 to allow monitoring
of voltage, amperage, wattage, VA and power consumption (kWh). It also records
daily power use trends for the last 30-day span and offers phase loss alarm
protection. The ultra-compact module measures only 3.11” tall by 4.25” long and
uses only 1.4” of DIN rail space.
Zone Control: A feature that offers multiple dap4 controls a teamwork solution.
Up to sixteen dap4 units may be arranged in the Zone Control network. Unit 1 has
menus with selectable features of:
• Minimum number of units that must always be on
• Automatic lead/lag and standby unit rotation
• Activate a standby unit due to selected alarm conditions
• Activate standby units to assist with controlling temperature or airflow
• Inhibit control functions to prevent units from conflicting operations
• Primary and secondary schedules for economical control
• Unified zone airflow control
Idap Communication Card: A network card with web-based application software
installed. It allows a standard PC to communicate with the dap4 controller. It has
an intuitive menu system that includes: System Status, Configuration, Data and
Graphs, Events and Emails and a Points Table. It can be setup to send trending
data for the previous 24-hour period allowing for review and analysis. The idap
card can be used on a stand-alone basis, in place of a BMS system. It can also
operate in conjunction with a BMS system, using BACnet, Modbus TCP/IP or
SNMP protocols.
Rack Sensor Modules: Allows up to 20 rack temperature sensors to be
connected to the dap4 to control fan speed. Sensors can be set to work
independently or arranged in groups. The rack temperature calculation can be set
to use the highest of the sensors or an average of the sensors.
Power Cap: Allows the dap4 to continue operation during short term power
interruptions. This feature is valuable where power sources are not reliable or
when power may switch to a stand-by generator.
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