Service-Standby Settings Menu Screen; Figure 85 Service Menus-Standby Settings / Lead-Lag Parameters Screen - Emerson Liebert CRV User Manual

11.6

Service-Standby Settings Menu Screen

Figure 85 Service menus—Standby settings / lead-lag parameters screen
S502 Number of Standby Units—Selects the number of units that will be in Standby mode. When
a unit is in standby mode, the fan will be Off and no cooling will be provided.
S503 Rotation Frequency—Controls when a rotation will occur between the standby units and the
operating units within a network.
S504 Rotate at (hour)—Sets the hour of the rotation.
S504 Rotate at (minute)—Sets the minute of the rotation.
S505 Rotate by—Determines the number of positions to rotate by. Example: If there are six units in
a unit-to-unit network and Units 1, 3 and 5 are in standby and this parameter is set to 1 at the next
rotation, units 2, 4,and 6 will be placed in standby and units 1, 3 and 5 will begin operating.
S506 Perform one Rotation—Manually forces a single rotation between units.
S515 Cascade Units—Allows standby units to activate if the active units are unable to maintain the
room temperature. If Yes is selected, the cascade units can perform all functions when activated from
standby. This parameter can also be set for Cooling Only or Cool / Heat only.
Start all Standby Units by HT—Activates all units to cool when a High Temperature alarm occurs.
See Parameters for Next Maintenance Calculation on page 110 and 11.8 Service—
Diagnostics Menu Screens for details on these menus.
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Liebert iCOM Control
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Liebert CRV