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Figure 7 Typical Remote Heat Exchanger Interconnection Points
Figure 8 Typical Indoor Evaporator Interconnection Points
Remote Shutdown
Every unit has remote shutdown contacts. These are intended for a field supplied dry contact or switch
to be wired across two terminals. When the contactor or switch opens, the control circuit power is
interrupted and the unit shuts down, including the control panel. The control circuit is 24 VAC and the
field provided contact or switch should have a minimum rating of 10 amps. A minimum of 18 - gauge
wire is recommended or use field supplied Class 1 wiring.
The remote shutdown contacts are always terminals 1 and 2 on the terminal block designated TB3.
The unit will ship with factory wired metal jumper clip that connects terminal 1 to terminal 2. Remove
the jumper clip prior to installing the field wires.
Mini-dap4 Controller
The Mini ceiling unit is furnished with programmable thermostat but can be upgraded to a
microprocessor-based Mini-dap4 or Expanded dap4 controller. The controller includes unit control
functions and display normal functions and service diagnostics with six keys (buttons) for easy
programming. The controller allows recall and display of the high and low temperature, high and low
humidity, current percent of capacity and average percent of capacity for chilled water valve,
compressor, reheat, humidification, dehumidification, component runtimes for fan motor(s), reheat,
humidification, and dehumidification (if applicable). See the separate Mini-dap4 User Manual for
detailed parameter settings and operating instructions.
Remote Alarm Contacts
The Mini-dap4 controller provides one (1) remote alarm output contacts that can be field accessed. The
contacts include a Normally Open (NO) or Normally Closed (NC) on Alarm, dry contact, intended to be
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