Unit installation

OMRCPMICRO 11
harness, and installation instruction can be installed in the field or at the factory. Modem wiring is shown on
the MicroTech wiring schematic. For more information, see "Telephone Line" in the Field Wiring section on
page 14.
Optional sensors
Optional sensor kits, available from the factory, can be installed in the field. Thermistors in the optional sensor
kit are negative coefficient type and have the same characteristics (see Table 1) as the thermistors used on
McQuay centrifugal chillers. Contact McQuayService for retrofit kits and ordering information.
Figure 5, Typical field wiring