FORM QWC3-NM1
ISSUE DATE:11/20/2020
QUANTECH
7
TABLE OF CONTENTS (CONT’D)
Anti-Coincidence Timer ................................................................................................................................151
Evaporator Pump Control And Hydro Kit Pump Control ............................................................................... 151
Evaporator Heater Control ...........................................................................................................................151
Pumpdown Control ....................................................................................................................................... 151
Load Limiting ................................................................................................................................................151
Compressor Run Status ...............................................................................................................................152
Alarm Status ................................................................................................................................................. 152
Ems-Pwm Remote Temperature Reset ........................................................................................................ 152
Bas/Ems Temperature Reset Using A Voltage Or Current Signal ................................................................153
SECTION 9 – SERVICE AND TROUBLESHOOTING .....................................................................................155
Clearing History Buffers................................................................................................................................ 155
Service Mode ...............................................................................................................................................155
Service Mode – Outputs ............................................................................................................................... 155
Service Mode – Chiller Configuration ........................................................................................................... 156
Service Mode – Analog And Digital
Inputs ............................................................................................................................................................156
Control Inputs/Outputs .................................................................................................................................157
Microboard Layout ........................................................................................................................................158
Checking Inputs And Outputs .......................................................................................................................159
Optional Printer Installation ..........................................................................................................................163
Acceptable Printers ......................................................................................................................................163
Printer Connections ...................................................................................................................................... 163
Printer Setup ................................................................................................................................................163
Printing A Report ..........................................................................................................................................164
Troubleshooting ............................................................................................................................................165
SECTION 10 – MAINTENANCE .........................................................................................................................169
Important ......................................................................................................................................................169
Compressors ................................................................................................................................................169
Operating Parameters ..................................................................................................................................169
On-Board Battery Back-Up ...........................................................................................................................169
Overall Unit Inspection .................................................................................................................................169
BACnet And Modbus Data Communications ................................................................................................ 170
Temperature Conversion Chart ....................................................................................................................184
R410-A
Pressure Temperature Chart ........................................................................................................................ 185
Temperature .................................................................................................................................................186
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