McQuay MicroTech 200 Series User Manual

10 OM 200MICRO
Table 2, Controller Input Signals
ADI Sensor No. Description Range
0 S00 Leaving Evaporator Water Temperature -40 - 263 F (-40-128.4°C)
1 S01 Entering Evaporator Water Temperature -40 - 263 F (-40-128.4°C)
2 S02 Compressor Suction Temperature -40 - 263 F (-40-128.4°C)
3 S03 External Chilled Water Reset (by others) 4-20mA = 0-100%
4 S04 External motor Current Reset (by others) 4-20mA = 0-100%
5 S05 Refrigerant Leak Monitor Signal (by others) 4-20mA = 0-100 PPM
6 S06 Evaporator Water Flow Transmitter Signal (by others) 4-20mA = 0-65535
7 S07 Condenser Water Flow Transmitter Signal (by others) 4-20mA = 0-65535
8 S08 Condenser Liquid Line Temperature -40 - 263 F (-40-128.4°C)
9 S09 Entering Condenser Water Temperature -40 - 263 F (-40-128.4°C)
10 S10 Leaving Condenser Water Temperature -40 - 263 F (-40-128.4°C)
11 S11 Percent Unit Amps 0-5V = 0-125% RLA
12 S12 Compressor Discharge Temperature -40 - 263 F (-40-128.4°C)
13 S13 Oil Feed Temperature -40 - 263 F (-40-128.4°C)
14 S14 Oil Sump Temperature -40 - 263 F (-40-128.4°C)
15 S15 Oil Vent Pressure 0-165 psig (0-1137.6 kPa)
16 S16 Evaporator Refrigerant Pressure 0-165 psig (0-1137.6 kPa)
17 S17 Condenser Refrigerant Pressure 0-165 psig (0-1137.6 kPa)
18 S18 Oil Feed Gauge Pressure 0-165 psig (0-1137.6 kPa)
19 S19 Transducer Power Voltage Ratio Used for Calibration
20 S20 Outdoor Air Temperature -40 - 263 F (-40-128.4°C)
21 S21 Heat Recovery Entering Water Temperature -40 - 263 F (-40-128.4°C)
22 S22 Heat Recovery Leaving Water Temperature -40 - 263 F (-40-128.4°C)
23 S23 Spare
Digital Inputs
Digital inputs indicate the status of external two-position devices such as a flow switch or remote time
clock. The ADI board senses the presence or absence of 24VAC and provides a corresponding
indication to the microprocessor control board.
Table 3, Digital Inputs
No. Description Lo Voltage Hi Voltage
0 Front Panel "Stop/Auto" Switch Stop Auto
1 Compressor High Pressure Switch Alarm Normal
2 Motor High Temperature (Guardistor) Alarm Normal
3 Vanes Closed Open Closed
4 Starter Transition - Delta
5 Starter Fault Alarm Normal
6 Evaporator Water Flow Switch No Flow Flow
7 Condenser Water Flow Switch No Flow Flow
8 Remote Start/Stop Stop Enable
9 Chiller/Templifier/Ice Chiller Templifier/Ice

McQuay MicroTech 200 Series Specifications

General

Brand	McQuay
Model	MicroTech 200 Series
Category	Chiller
Language	English