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ERV
SYSTEM MONITORING
TYPE
INSTANCE
VARIABLE NAME
DESCRIPTION
VALUE
RANGE
READ/WRITE
(RET)
Binary Value
60
BMS_SetHeatCool
BMS Set Heat/Cool
Capability
No/Allow
Read_Writeable (X)
Binary Value
61
BMS_HeatCoolMode
BMS Heat/Cool Mode
Setting
Heat/Cool Read_Writeable (X)
Binary Value
74
BMS_HW_Valve_
Control
BMS HW Valve Control
No/Allow
Read_Writeable
Binary Value
75
Heating_Enable_1.Val
Heating Stage 1 BMS
Enable
Off/On
Read_Writeable
MultiState
Input
2
SF_ControlType_BN
SF_ControlType_BN
(See
Notes)
Read_NoWrite
MultiState
Input
3
EF_ControlType_BN
EF_ControlType_BN
(See
Notes)
Read_NoWrite
MultiState
Input
4
HTG_ControlType_BN
HTG_ControlType_BN
(See
Notes)
Read_NoWrite
MultiState
Input
5
CLG_ControlType_BN
CLG_ControlType_BN
(See
Notes)
Read_NoWrite
MultiState
Input
6
Heating_SetPtType_BN Heating_SetPtType_BN
(See
Notes)
Read_NoWrite
Multistate
Input
7
UnitStatus_BN
UnitStatus_BN
(See
Notes)
Read_NoWrite
12.5 BACNET APPLICATION NOTES
12.5.1 Turning the Unit On and Off
If you plan to use the BMS to turn the unit on and off, make sure you have the control enabled
through the keypad. Use Binary Value 10 “OnOffUnitMng.BmsOnOff.” The status can be read at
“UnitOn” at Binary Input 21.
All of the following have to be true in order for the unit to be on:
u
There are no serious alarms.
u
The Digital Input for start/stop (terminals 17 and 18) are closed.
u
The unit is turned on at the keypad.
u
The time is within the scheduler “ON” time, if scheduler enabled.
u
The BMS has written the unit on signal, if BMS control is enabled