Hussmann Ingersoll Rand, User Manual

Page: 344 / 346

Delta P Switch
Figure 34
PN CU.4220239 120 volt
PN CU.4220240 240 volt
*Note: The Delta P Switch voltage must match the SE-B motor protection device and control
circuit voltage.
3. Disconnect the device feeding the (T1) terminal of the Copeland overload module and
connect it to terminal (L) on the IR SE-B protection device.
4.
Disconnect the wire from terminal (L2) on the Copeland overload module.
5. Connect a wire from line (L2) to (N) on the IR SE-B protection device.
6. Connect a jumper wire from (L) to (11) on the IR SE-B protection device.
7. Connect the red and Brown wires from the Delta-P to terminal (14) on the IR SE-B
protection device.
8.
Disconnect the wire from line (L2) to (240 volt or 120 volt) connection on oil failure control.
9. Disconnect the wire between the compressor contactor (C) and connection (M) on the oil
failure control.
10.
Connect the orange wire from the Delta-P oil failure control to the compressor contactor.
11. Connect the black wire from the Delta-P oil failure control to line (L2) .
12. Connect the thermistor wires (1,2) to the compressor thermistor terminals.
13. Once all the connections have been transferred to the new control device, the old controls
can be removed.
Hussmann Aftermarket page 16 of 18 4/7/2006