Johnson Controls York YHAU-C - Commissioning and Data Sheets

Figure 39: External connection terminal details
Ancillary equipment board
(out of scope of supply)
Absorption chiller control panel
(scope of supply)
Power supply
3-phase, 3-wire
(See the specification sheet
for voltage and frequency)
Remote start/stop
(potential-free level signal)
Chilled water pump interlock
Standard
Cooling water pump interlock
Remote chilled water temperature
setting (4 - 20 mA)
Control valve load limit setting
(4 - 20 mA)
Starting panel for chilled water and cooling water
(out of scope of supply)
Interlock
Test
Reset
Interlock
Test
Reset
Steam control valves (steam inlet pressure above 6 bar)
(out of scope of supply)
Steam control valve control signal
(4 - 20 mA)
Z1 terminal block
LD29621
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Steam control valve
power supply
115 VAC
Z2 terminal block
Steam control valve
control signal
(4 - 20 mA)
Dilution signal
Cooling/heating mode signal
Remote/local mode signal
Cooling water temperature abnormal
Common 2
Operation signal
Failure signal
Alarm signal
Common 1
Operation signal
Failure signal
Chilled water pump operation signal
Cooling water pump operation signal
Z5 terminal block
Z2 terminal block
Z3 terminal block
MCCB
85YHAU-C Single Effect Steam-Fired Absorption Chiller