Electrical and Controls Capabilities

MarCraft Custom HVAC Systems Electrical and Controls Capabilities

Electrical Options

  • All units are ETL listed
  • Compliance with latest National Electrical Code (NEC, NFPA-70)
  • UL508A certified panel shop can provide UL listed industrial control panels
  • Single point power connections are available to keep electrical installation simple and reduce on-site time
  • Interior unit lights provide a bright, safe working environment for maintenance staff.

Control Options

We have a wide range of controls options.  Optional controls, factory control packages and installation provided or third party.

Factory mount or install provided components or control package:

  • We can do anything from mount an actuator to install a full control package.
  • Save on-site time by letting us factory install the control components or the full control package.

MarCraft Standard Controls:

  • Inexpensive alternative to PLC based control systems, especially when compared to on-site control installations.
  • Direct Digital Controller (DDC) – Microprocessor based controller with integrated inputs & outputs, designed to operate Air Handling Units and integrate into building automation systems.
  • Local operation – Command & monitor the air handler.  Enable/disable, alter setpoints and modes.  Access sensor readings, review active and logged alarms, monitor all inputs & outputs & set schedules.
  • All controls options are factory installed and tested for faster, lower cost, field commissioning.

No Factory Installed controls:

  • All necessary controls are installed by others on-site


  • Remote operation – Nearly all the Local functions are available via communication
  • Provides easy integration into the building automation systems and compatibility with BACnet MS/TP, BACnet TCP/IP, SNMP, MOdbus, LonWorks.
  • Ethernet/IP/SNMP card can be stand alone, no building automation system is needed.  Once connected to a network, the interface is available to on-network users with the correct name and password.  The network administrator can make the interface available on the web.