Quantech 3070TSE Manual page 11

Equipment Overview (Cont'd)
QUANTECH
Motors – The fans are driven by Totally Enclosed Air-Over, squirrel-cage type, current
protected motors. They feature ball bearings that are double-sealed and permanently lu-
bricated.
UNIT CONTROL SYSTEM
The QTC3 chiller is designed with an intelligent control system that operates the chiller
automatically with maximum reliability, safety and ease of use. The controls are factory
tested and with as little user input as a chilled liquid setpoint the chiller will operate to meet
the load demand.
The control system includes native BACnet MS/TP, Modbus and N2 communications, with
LON protocol served through an optional eLink communications card.
ON/OFF
SWITCH
TERMINAL
BLOCK
The operating program is stored in non-volatile memory (EPROM), so power failures and
battery discharge will not require reprogramming the chiller. Programmed setpoints are
retained in lithium battery-backed RTC memory for 5 years minimum.
DISPLAY
KEYPAD
MICROBOARD
CONTROL
TRANSFORMER
LD18429a
FUSES
FORM QTC3-EG6 (1118)
LD18428
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