ED 15103-6 • MICROTECH III WSHP UNIT CONTROLLER 10 www.DaikinApplied.com
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Table 5:
Multi-State Inputs - Enfinity Single Stage Compressor
Point Name
Object
Type/
Instance
Read/
Write
Access
2
BACnet Object
Name
Range/Default
(in Units)
Non-
volatile
Memory
1
Description
MULTI-STATE INPUTS
Condensate Overflow
Status
MSI:1
R
CondOverFlow
1 to 3
N
Monitors the Condensate Overflow sensor input.
1 = Dry
2 = Wet
3 = Null (no sensor present)
Fan ON/Auto Switch
Status
(Room Sensor)
MSI:2
R
FanOnAuto
1 to 3
N
Displays the room sensor fan On/Auto switch position.
1 = On
2 = Auto
3 = Null (no switch present)
System Mode Switch
(Heat/Cool/Auto) Status
MSI:3
R
HeatCoolAuto
1 to 5
N
Displays the room sensor System Mode switch
(Heat/Cool/Auto) position.
1 = Off
2 = Heat
3 = Cool
4 = Auto
5 = Null (no switch present)
Table 6:
Multi-State Values - Enfinity Single Stage Compressor
Point Name
Object
Type/
Instance
Read/
Write
Access
2
BACnet Object
Name
Range/Default
(in Units)
Non-
volatile
Memory
1
Description
MULTI-STATE VALUES
Compressor Enable
Input
MSV:1
C
ComprEnable
1 to 3
Default: 3
N
Specifies if the compressor(s) are allowed to operate, which
can be based on proof of loop fluid flow. The loop pump
must be running to provide adequate flow through the
WSHP. The network override will revert back to its default
value upon unit controller reboot.
1 = Disabled
2 = Enabled
3 = Null (compressors are enabled)
Current Alarm
MSV:2
R
CurrentAlarm
1 to 16
N
Displays the current highest priority active alarm.
1 = No Alarms
2 = Low Voltage Brownout
3 = Comp#1 High Pressure
4 = Comp#2 High Pressure
5 = Comp#1 Low Pressure
6 = Comp#2 Low Pressure
7 = Comp#1 Suctn Temp Snsr Fail
8 = Comp#2 Suctn Temp Snsr Fail
9 = Comp#1 Low Suction Temp
10 = Comp#2 Low Suction Temp
11= Room Temp Sensor Fail
12 = Entering Water Temp Sensor Fail
13 = Condensate Overflow
14 = Serial EEPROM Corrupted
15 = Invalid Configuration
16 = Low Entering Water Temp
Fan Speed Output
MSV:3
R
Fan Speed
1 to 5
N
Displays the commanded fan speed.
1 = Off
2 = Low
3 = Medium
4 = High
5 = On
McQuay WSHP Status
MSV:4
R
McQWSHPStatus
1 to 10
N
Indicates the unit’s operating state.
1 = Off Alarm
2 = Off*
3 = Start
4 = Fan Only* (fan is allowed to operate)
5 = Prepare to Heat
6 = Heating
7 = Prepare to Cool
8 = Cooling
9 = Prepare to Dehumidify
10 = Dehumidification
*State Indications:
• Unit controller software v3 .0 and newer:
MSV-4 always matches unit controller state
• Unit controller software v2 .9 and older
:
When fan is off, MSV-4 indicates Off state, but unit
controller is actually in Fan Only mode
