Daikin MicroTech II Installation And Maintenance Manual

ClearIng alarms-baCneT
www.DaikinApplied.com 91 ED 15062-7 • MICROTECH II CHILLER CONTROLLER
ClearIng alarms-baCneT
This BACnet object clears all active alarms. It cannot clear all
alarms in the Fault category (alarms that shut down the chiller).
They would have to be cleared at the chiller panel. The alarms
that cannot be cleared over the network, but can be cleared at
the chiller, are: (D24)
• Low Evaporator Pressure
• High Condenser Pressure (by pressure sensor)
• High Condenser Pressure (by pressure switch)
• Low Oil Pressure
• Freeze Protection
• High Motor Temperature
NOTE: The above list pertains only to centrifugal chillers.
The only alarm that can be cleared remotely on all
other chiller types is the Flow Loss alarm.
Measurement Units Data Type Valid Range Default Value
NA NA Integer Enumerated NA
Object Identier Property Identier
Object Type Type Enumeration Instance Property Name Property Enumeration
Binary Value 5 42 Present Value 85
Object Name
ClearAlarm
Property Values
0 = Normal
1 = Clear Alarm
BACnet Alarm Messages
The following table identies each alarm, class, whether an
acknowledgement is required, the alarm text, and indicates
system parameters at the time of the alarm.
Table 4: BACnet Alarms
Alarm Class Description Event Values
WSC, WDC,
WPV, HSC,
HDC, TSC,
WMC, WCC
AGZ ACZ WGZ, TGZ AGS WGS
1 W
NO ACTION - Condenser Entering Water Temperature Sensor
Failure
1,2,3,4,9 X
2 W
NO ACTION - Evaporator Entering Water Temperature Sensor
Failure
1,2,3,4,9,10 X X X X
3 W NO ACTION - Liquid Line Refrigerant Temperature Sensor Failure 1,2,3,4,9 X X
4 W
NO ACTION (STOP if Heat) - Condenser Leaving Water
Temperature Sensor Failure
1,2,3,4,9 X X
5 P RESTART DELAYED - Power Loss While Running #1 1,2,9,10 X X
6 P RESTART DELAYED - Power Loss While Running #2 1,2,9,10 X X
7 P RESTART DELAYED - Power Loss While Running #3 1,2,9,10 X
2
9 W Expansion Alarm – Warning 1,2,9,10 X X
10 P START INHIBITED - Ambient Temperature Low 1,2,3,4,9,10 X X X X X
11 P INHIBIT LOAD - Condenser Pressure High #1 1,2,9,10 X
5
X
3
X X X
1-AGS ‘C’ Vintage Only (two circuits only)
2-AGS ‘B’ Vintage Only (up to three circuits)
3-ACZ Dual Circuit Only
4-ACZ Single Circuit Only
5-AGZ Dual Circuit Only
6-AGZ Single Circuit Only
7-Solid State Starter Option required. Not available on WMC.
8-WMC Only.

Daikin MicroTech II Specifications

General

Brand	Daikin
Model	MicroTech II
Category	Controller
Language	English