ICC ETH-1000, Installation Manual

Page: 29 / 54

29
BACnet / Electric Water Heaters
Table 22. BACnet/Electric Water Heaters Object List
BACnet
Object Name
(Description)
BACnet
Object
Type/Inst.
BACnet
Object
Property R/W Units
Min
Value
(if W)
Max
Value
(if W)
&&%6\VWHP6WDWH
&HQWUDO&RQWURO%RDUG&RQWURO6WDWH
Multistate Value 801
3UHVHQWB9DOXH
R See
7DEOH .
Fault Code Multistate Value 802
3UHVHQWB9DOXH
R See
7DEOH .
Alert Code Multistate Value 803
3UHVHQWB9DOXH
R See
7DEOH
'DWDLVHQFRGHGLQWRWKHELWVDVPDMRUUHYLVLRQXSSHUELWVDQGPLQRUUHYLVLRQORZHUELWV
&HQWUDO&RQWURO%RDUG0DMRU6WDWH'H¿QLWLRQV
Table 23. BACnet/Electric Water Heaters Central Control Board (CCB) State
Value State
0
2II6WDQGE\
6 Heating
8 Fault
Energy Management System (EMS) Control
&RPPHUFLDO(OHFWULFZDWHUKHDWHUVZLWK;LFRQWUROVXVHDVLQJOHELWVHWWLQJPHWKRG:LWKLQWKH(060RGH6WDWXVSRLQWRQHELWFRPPDQG
ELWVHWVLWLQ(06PRGHDQGRWKHUHQGV(06PRGH2QFHLQ(06PRGHDQRWKHUELWFRPPDQGELWHQDEOHVKHDWLQJDQRWKHU
disables heating.
2QFHLQ(06PRGHWKH(060RGH5HIUHVKFRPPDQGPXVWEHSHULRGLFDOO\LVVXHGZKLFKFOHDUVDWKLUGELWELWWRPDLQWDLQ(06PRGH
otherwise the heater will end EMS mode and resume normal operation.
Table 24. BACnet/Electric Water Heaters Energy Management System (EMS) Control
Decimal Hex Value Response
3841 0x0F01 Put into EMS Mode^
[&
0000 0x0000 EMS Disable heating^
[&
0001 0x0001 EMS Enable heating^
[&
3584 0x0E00
(060RGH5HIUHVKAPXVW
write within 30 seconds or EMS
mode ends.) 15 seconds or
less recommended
[&RU
0xC001 depending on whether
or not heating is enabled.
Notes:
7KHVWDUWRIDKHDWLQJDOVRGHSHQGRQRWKHUIDFWRUVOLNHWDQNWHPSHUDWXUHGURSSLQJEHORZ6HWSRLQW±'LIIHUHQWLDODQG([WHUQDO7¶VWDWFDOO
for heat if that option is enabled.
A'HSHQGLQJRQZKHQ\RXSROOWKHUHJLVWHU\RXPD\UHDGELWDVZKLFKLVZK\D³&´LQKH[DGHFLPDOIRUPPLJKWEULHÀ\UHSO\ZLWK
³´7KLVLVGXHWRWKHFRQWUROVHWWLQJWKLVELWDQGLILWQRWFOHDUHGSHULRGLFDOO\E\WKH%$&QHWFRPPDQGKHDWLQJLVGLVDEOHG
After disabling EMS mode with write of 3840, read back might have bits 14 and 1 possibly still set. To make sure these bits are clear,
write a 0000 to clear bit 1 and 3584 to clear bit 14.
Fault Codes and Warnings
Note:
$Q\)DXOWQRWOLVWHGLVDQLQWHUQDO&&%IDLOXUHIDXOW
Table 25. BACnet/Electric Water Heaters Fault codes and Warnings
Index Range
(Decimal) Value
1 1
2ND\1R)DXOW,I6\VWHP,Q)DXOW
1 6
0HPRU\,I6\VWHP,Q)DXOW
24 Incorrect Model