V-Operating Principles - Trane R Series Installation Operation & Maintenance

Tab. V-01 – LonTalk Points List
LonTalk Communications Interface
Inputs
Chiller Enable/Disable
Chilled Water Setpoint
Current Limit Setpoint
Chiller Mode
Outputs
Outputs
Chiller On/Off
Active Chilled Water Setpoint
Percent RLA
Active Current Limit Setpoint
Leaving Chilled Water Temperature
Entering Chilled Water Temperature
Entering Condenser Water Temperature
Leaving Condenser Water Temperature
Alarm Description
Chiller Status
Note 1: Chiller Mode is used to place the chiller into an alternate mode; Cool
or Ice Build
Note 2: Alarm Description denotes alarm severity and target. Severity: no
alarm, warning, normal shutdown, immediate shutdown Target: Chiller,
Platform, Ice Building (Chiller is refrigerant circuit and Platform is control
circuit)
Note 3: Chiller Status describes Chiller Run Mode and Chiller Operating
Mode. Run Modes: Off, Starting, Running, Shutting Down Operating Modes:
Cool, Ice Build States: Alarm, Run Enabled, Local Control, Limited, CHW
Flow, Cond Flow
RTAC-SVX002A-EN

V-Operating Principles

Variable type
binary
analog
analog
Note 1
Variable type
Variable type
binary
analog
analog
analog
analog
analog
analog
analog
Note 2
Note 3
SNVT_Type
start(1)/stop(0) SNVT_switch
temperature SNVT_temp_p
% current SNVT_lev_percent
SNVT_hvac_mode
SNVT_Type
SNVT_Type
on(1)/off(0) SNVT_switch
temperature SNVT_temp_p
% current SNVT_lev_percent
% current SNVT_lev_percent
temperature SNVT_temp_p
temperature SNVT_temp_p
temperature SNVT_temp_p
temperature SNVT_temp_p
SNVT_str_asc
SNVT_chlr_status
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