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Specification for WSHP SmartSource ALL <br />a. Main Fan Switched output (line or low voltage) to control single speed fan operation <br />b. Compressor Controls compressor operation (line or low voltage) <br />c. Reversing Valve Controls reversing valve operation via low voltage. When the reversing valve output is de - <br />energized, the reversing valve is in the "cool" position. <br />d. Isolation Valve/Pump Request Switched output to send a signal that the water source heat pump requires <br />liquid flow. <br />e. 3 Board Status LED's Provides mode/alarm indication (SVDC). <br />f. Room Sensor Status LED Provides unit status information (SVDC). <br />g. Thermostat "A" Output 24VAC signal that turns on when the unit is in fault mode. <br />R. The 1/0 expansion board shall provide a means of adding 1/0 capability to the base controller in the form of extra <br />analog inputs, analog output, binary inputs, and binary outputs. The primary use of the 1/0 expansion board is <br />variable speed fan control, two stage compressor operation, dehumidification, waterside economizer, and one or <br />two stage electric heat. Some configurations may also require options such as fan speed control, hot gas reheat coil <br />control, and electric heater coil control. <br />1. Analog Inputs: 2 total (entering water temperature, speed adjust signal): <br />a. Entering Water Temperature (EWT) monitors entering water temperature by means of a 10k Ohm <br />thermistor. <br />b. Speed Adjust Signal a four position switch that selects user preferred fan speed. <br />2. Analog Output: 1 total (PWM signal) <br />a. PWM Signal provides constant CFM or torque fan operation within maximum and minimum settings as <br />defined in the fan motor control. <br />3. Binary Inputs: 2 total (Heat stage four, Humidistat) <br />a. Heat stage four tells the Microtechlll unit controller that 2nd stage electric heat is required. <br />b. Humidistat tells the Microtechlll unit controller that dehumidification is required. <br />4. Binary Output: 7 total (Compressor High Capacity, Auxillary heat stage 1, hot gas reheat, <br />dehumidification/waterside economizer, auxillary heat stage 2, (3) status LED's) <br />a. Compressor High Capacity 24VAC signal that enables the compressor at full load capacity. <br />b. Auxiliary heat stage 1 24VAC signal that enables stage 1 electric heat. <br />c. Hot Gas Re -Heat Dehumidification / Waterside Economizer enables the reheat solenoid on a request for <br />dehumidification or controls the 3 -way diverting valve upon a call for waterside economizer depending on <br />configuration. <br />d. Auxiliary heat stage 2 24VAC signal that enables stage 2 electric heat. <br />e. (3) status LED's SVDC signals that indicate operating conditions of the 1/0 expansion module. <br />S. Emergency Shutdown: The controller will be in remote shutdown when the emergency shutdown contact closes <br />to ground. Remote shutdown is provided so that when properly connected to a water loop controller or remote <br />switch, the emergency shutdown input can be used to shut down the water source heat pump. When in remote <br />shutdown no other thermostat or control inputs will have effect on unit operation. No faults or modes have higher <br />priority than remote shutdown. Remote shutdown or brownout modes have the same level of priority. When the <br />unit is in remote shutdown mode the following occurs: <br />The compressor is immediately de-eliezgized (miliimum on timer is ignored) <br />The revetsilig valve is immediately de -energized <br />The fan is immediately de -energized <br />The alarm output is de -energized. <br />W heli the emeigelicy shutdown iliput is opened the unit will automatically returli <br />to normal operation. <br />Job Number: LL2OFE Page Prepared Date: 10/8/2020 <br />Job Name: Brackets Point House 33 of 35 www.DaikinApplied.com <br />