Emerson Liebert iCOM User Manual download pdf (Page 75)

Service Menu Parameters

Figure 53 Standby settings / lead-lag screen

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.

Rotation Frequency—Controls when a rotation will occur between the standby units and the

operating units within a network.

Rotate at (hour)—Sets the hour of the rotation

Rotate at (minute)—Sets the minute of the rotation.

Rotate by—Determines the number of positions to rotate by. Example: If there are 6 units in a

unit-to-unit network and units 1, 3 and 5 are in standby and this parameter is set to “1,” then at the

next rotation units 2, 4 and 6 will be placed in standby and units 1, 3 and 5 will become operational.

Cascade Units—Allows units to activate in Standby mode if the room temperature cannot be

maintained by the non-standby units. 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 3.10.1 - Calculating Next Maintenance and Diagnostics for details on these menus.

STANDBY SETTINGS / LEAD-LAG

to change parameter

to confirm

to select parameter

for next/previous unit

then

SYSTEM

PASSWORD (Actual Level 0) ????

Number of Standby Units 0

Rotation Frequency No

Rotate at (hour) 00

Rotate at (minute) 00

Rotate by 1

Perform one Rotation No

Cascade Units No

Start all Standby Units by HT No

S501

S502

S503

S504

S505

S506

S507

S508

S509

S510

S511

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Emerson Liebert iCOM User Manual Page 75

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