Quantech QTC3 Series

QUANTECH
FORM QTC3-EG6 (1118)
14
• Liquid solenoid valve status.
• Load & unload timer status.
• Water pump status.
COMMUNICATIONS
• Native communication capability for BACnet (MS/TP), Modbus and N2.
• Optional communication available for LON via eLink option.
BUILDING AUTOMATION SYSTEM INTERFACE
In addition to native BACnet, Modbus and N2, the QTC3 chiller accepts a 4-20 milliamp
or 0-10VDC input to reset of the leaving chilled liquid temperature. The standard unit ca-
pabilities include remote start-stop, remote water temperature reset via up to two steps of
demand (load) limiting depending on model. The standard control panel can be directly
connected to a building automated system via the standard on-board RS232 communica-
tion port. (Factory installed.)
POWER PANEL
• Each panel contains:
• Compressor power terminals.
• Compressor motor starting contactors per l.E.C.
• Control power terminals to accept incoming for 115-1-60 control power.
• Fan contactors & overload current protection.
Equipment Overview (Cont'd)
FAN
FUSE
FAN
CONTACTORS
DISCONNECT
SWITCH
FAN
FUSE
FAN
CONTACTORS
FAN
CONTACTORS
COMPRESSOR
CONTACTORS
GROUND
LUG
COMPRESSOR
CONTACTORS
FAN
CONTACTORS
XTBF1
LD18430A