Y-200 LonWorks Module Installation and Operating Manual
4
LonWorks Table of Communication
Item
Description
Y-200
Screen
Value Functions
Direction
to Y-200
SNVT
NVIDX
SNVT #
1 Boiler Enable To enable or disable Y-200 Input nviBoilerEnable
19
2
Boiler
Command
To enable or disable Y-200 Input nviBoilerCmd 21
3 Set Point 2 40 - 220°F
To write to Y-200 EPROM; In
power failure, to stay the same
Input nciHeatSetpt 6
4 Set Point 2 40 - 220°F
To write to Y-200 RAM; In power
failure, reverts to original set-up
Input nciSetpoint 25
5 MAX Temp 8 220°F High water temperature limit Input nciHeatSetupMax
9
6 MIN Temp 8 40°F Low water temperature limit Input nciHeatSetupMin
10
7 Boiler Load 0 - 100 %
To show the percentage of boiler or
stage activity
Output nvoBoilerLoad 29
8 Target Temp 12 40 - 220°F To show the Target Temp Output nvoTargetTemp
28
9 Outdoor Temp
12 -40 - 220°F Show outdoor temp Output nvoOutdoorTemp
34
10
System Temp 12 40 - 235°F Show system temp sensor Output nvoSysTemp 36
11
Outlet Temp 17 -40 - 220°F Show outlet temp sensor Output nvoOutletTemp
33
12
Inlet Temp 17 -40 - 220°F Show inlet temp sensor Output nvoInletTemp 32
13
Heater Loca-
tion Code
31 To identify the location of Y-200 Output ncoLocation 0
14
Y-200 Alarms
& Codes
7
See Alarm
Chart for codes
To announce problem with
Y-200 system
Output nvoAlarm 4
Note: The rest of the SNVT’s are reserved for custom made application software for future use.
Alarm Chart
Item Failure Descriptions on Y-200 Display Codes
1
System Normal 0
2 ILS > OLS 1
3 OSS is Open 4
4 OSS is Short 8
5 SYS is Open 16
6 SYS is Short or Water Temp > MAX 32 + 1024 = 1056
7 ILS is Open 64
8 ILS is Short or ILS > OLS 128 + 1 = 129
9 OLS is Open 256
10 OLS is Short 512
LonWorks nvoAlarm:
59 32 30 30 0 0 0
AL_ALM_CONDITION PR_LEVEL_0 0 <0000> 2004/5/27/ 0:1:46:0 <000>
0
: See the above table
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