Bunn SRU Coffeemaker User Manual


 
Page 15
SERVICE (cont.)
Location:
The contactor is located inside the front lower
access panel, left of center on the component bracket.
Test Procedures:
1. Disconnect the brewer from the power source.
2A. 120/208V and 120/240V THREE WIRE MODELS
Disconnect the black wire from the contactor coil
to the limit thermostat and black wire from the
white wire on the main harness.
2B. 208V or 240V TWO WIRE MODELS, 208V and
240V THREE WIRE MODELS
Disconnect the black wire from the contactor coil
to the limit thermostat and black wire from the red
wire on the main harness.
2C. 230V MODELS
Disconnect the red wire from contactor coil to the
limit thermostat and the black wire from the main
harness.
3. Connect the brewer to the power source.
4. Check the voltage across the limit wire and the wire
from the the main harness.The indication must be:
a) 120 volts for 120/208 and 120/240 volt, 3-wire
with ground, single phase;
b) 230 volts for 230 volt, 2-wire with ground,
single phase;
c) 208 volts for 208 volt, 2-wire with ground,
single phase;
d) 240 volts for 240 volt, 2-wire with ground,
single phase.
10067 040100
5. Disconnect the brewer from the power source.
If voltage is present as describ 84 20.0006 -1.5 2 2 2l01 8