Unit installation

OMRCPMICRO 45
Menu Descriptions
Status menus
Menus 1 through 12 provide chiller operating information and display of sensor readings. The items listed
under these status menus are effected by the settings under the associated control menus and are not directly
adjusted via the keypad.
Menu # 1: Unit Status
—The unit operating status is displayed as item 1 within this menu. The second item is the number of seconds
remaining in the unit interstage timer. The third item displays the user chosen unit operation of chiller or
Templifier (heat pump). Option chosen on Menu 23.
Menu # 2: Circuit #1 Status
—The current operating condition of refrigerant circuit #1 is displayed whenever this menu is selected. There
is only one item displayed in this menu.
Menu # 3: Circuit #2 Status
—The current operating condition of refrigerant circuit #2 is displayed whenever this menu is selected. There
is only one item displayed in this menu.
Menu # 4: Water Temperatures
—The evaporator leaving water temperature is displayed under item #1 under this menu. Additional items
under this menu display the evaporator entering water temperature as well as the entering and leaving
condenser temperatures if these optional sensors have been installed on the unit.
Menu # 5: Circuit #1 Pressures
—The circuit #1 evaporator and condenser refrigerant pressure readings are displayed under this menu. The
calculated minimum and maximum condenser pressure values are also shown.
Menu # 6: Circuit #2 Pressures
—The circuit #2 evaporator and condenser refrigerant pressure readings are displayed under this menu. The
calculated minimum and maximum condenser pressure values are also shown.
Menu # 7: Circuit #1 Temperatures
—The circuit #1 refrigerant temperatures are calculated from their corresponding pressure sensors and
displayed here. If the optional sensors are not present, the line item will flash "Open".
Menu # 8: Circuit #2 Temperatures
—The circuit #2 refrigerant temperatures are calculated from their corresponding pressure sensors and
displayed here. If the optional sensors are not present, the line item will flash "Open".
Menu # 9: Chiller Amps
—Displays the present amp draw of the chiller expressed as a percentage of the unit rated load amps under full
load conditions (optional feature).
Menu # 10: Compressor Run Hours
—The total run hours for each compressor is available under this menu.
Menu # 11: Compressor Starts
—The total number of starts for each compressor is available under this menu.
Menu # 12: Air Temperature
—Displays the current outdoor air temperature if the optional OAT sensor is installed on the air cooled chiller
and "Lcl" is selected from Menu 23. Also displayed here is the air temperature received from a network if the
"Rmt" OAT select option from Menu 23 is selected.