York YK Manual page 31

Centrifugal liquid chiller style g
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Accessories and Modifications (Cont'd)
JOHNSON CONTROLS
TABLE 2 - LOW VOLTAGE SOLID-STATE STARTER
LOW VOLTAGE
SOLID-STATE
STARTER
(UNIT MOUNTED)
X=Available
Standard Features include digital readout at the Control Center of the following:
Display Only
• 3-phase input voltage
• 3-phase current
• Input Power (kW)
• Kilowatt-Hours (kWh)
• Starter Model
• Motor Run (LED)
• Motor Current % Full Load Amps
• Current Limit Setpoints
• Pulldown Demand Time Left
Programmable
• Local Motor Current Limit
• Pulldown Demand Limit
• Pulldown Demand Time
Other features include: low line voltage; 115V control transformer; three-leg, motor-cur-
rent-sensing overloads; phase rotation and single-phase failure protection; high tem-
perature safety protection; motor current imbalance and under-voltage safeties; open
and shorted SCR protection; momentary power interruption protection. The Solid-State
Starter is cooled by a closed-loop, fresh-water-circuit consisting of a water-to-water heat
exchanger and a fractional horsepower circulating pump. All interconnecting water piping
is factory-installed and rated for 150 psig (10.3 barg) working pressure. Optional elec-
tronic trip circuit UL listed circuit breaker with integral ground fault protection is available
with short circuit withstand ratings of:
• 65KA for 460V 200V, 400V models
• 50KA for 33L 575V models
• 35KA for 14L 575V models
• 22KA for 7L 575V models
A non-fused disconnect switch is also available. Both options are lockable.
60HZ
380V 440V 460V 480V 575V 600V 380V 400V 415V 440V
X
X
X
X
FORM 160.75-EG1 (519)
50HZ
X
X
X
X
X
X
31

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