Quantech QWC3 Manual page 10

FORM QWC3-EG1 (217)
Microprocessor Controls (Cont'd)
The standard controls shall include: brine chilling, automatic pumpdown, run signal con-
tacts, demand load limit form external building automation system input, remote reset
liquid temperature reset input, unit alarm contacts, chilled liquid pump control, automatic
reset after power failure, and automatic system optimization to match operating condi-
tions. A non-reversing heat pump function (leaving condenser temperature control) is also
standard.
The operating program software shall be stored in nonvolatile memory (EPROM) to elimi-
nate chiller failure due to AC power failure. Programmed setpoints are retained in lithium
battery-backed regulated time clock (RTC) memory for 5 years minimum.
COMMUNICATIONS
• Native communication capability for BACnet (MS/TP) and Modbus
• Optional communciation available for N2 and LON via eLink option
10 QUANTECH