Emerson iCOM user manual User Inputs / Customer Inputs, Customer inputs

Operation

3.7.5User Inputs / Customer Inputs

The user can connect and specify up to four inputs depending on unit configuration. The user inputs/customer inputs are digital inputs that influence the operating mode of the unit depending on the selection. The customer input configuration settings are in the Service menu under Set Alarms, Screen 2 of 7. The choices for the customer inputs are shown in Table 7 along with their associated reaction. A terminal strip is provided in the cooling unit to connect your contact closure to. You have the ability to set the control to react on an open or closed contact.

NOTE

To enabled/disabled, delay activation and set event type (alarm, warn, message) see Event Types on page 34.

Table 7	Customer inputs
Setting		Reaction
Smoke		Event Only
Water Alarm		Event Only
C PMP Alarm		Event Only
Flow Alarm		Event Only
Stdby G Pmp		Event Only
Stdby Unit		Event Only
C-Input 1		Event Only
C-Input 2		Event Only
C-Input 3		Event Only
C-Input 4		Event Only
Rht Lockout		Event + Electrical Heaters Disabled
Hum Lockout		Event + Humidifier Disabled
Rht+Hum Lock		Event + Electrical Heaters and Humidifier Disabled
Comp Lockout		Event + Compressor(s) Disabled w/o Pump Down
Call Service		Event Only
High Temp		Event Only
Air Loss		Event Only
FC Lockout		Event + Free Cooling Disabled
Heater Alarm		Event + Heaters Off (PeX Only)
Flow AL SD		Event + Shut Down the Unit
Flow AL LC		Event + Lockout Compressors, No Pump Down (enabled only if at
		least one compressor is on; auto-reset depends on input status)
Comp Lock PD		Event + Compressor(s) Disabled w/ Pump Down
Enable FC		Forces Free Cooling to On
HTRJ VFD		Activates the HEAT REJ VFD ALARM; no other function
HTRJ TVSS		Activates the HEAT REJ TVSS ALARM; no other function

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