
Rinnai
24
Commercial Controller OM
DDSOLAR ERROR DETECTION
The DDSOLAR controller has in-built system error detection that is connected to internal voltage free contacts.
The voltage free contacts can connect to BMS and be either programmed to open or close on error detection.
Errors that are present are displayed on the home operating screen and can be accessed via the MODBUS and
BACNET protocols. During solar gain if there is no temperature rise within 2 hours then an error will be displayed,
this usually means there is a fault with the pump. Errors that are present are displayed on the main operating
screen. See the two errors listed below.
To view displayed errors
1. From the home screen select "INFO" button 2.
1
2
3
4
SET
INFO
MAINT
TANK TEMPERATURE 34
COLLECTOR TEMP. 30
PUMP IDLE
2.
No temperature rise within a predetermined time during a solar gain period.
1
2
3
4
OK
ERROR NO SOLAR
TEMPERATURE RISE
PUMP DISABLED
3.
If one or both thermistors are outside
the predetermined measurement range.
This screen justifies an error with the
collector short.
To remove any of the errors select the
"CLEAR" button 1. followed by "CLEAR"
button 2.
1
2
3
4
CLEAR
OK
THERMISTOR ERROR
TANK: OK
COLLECTOR SHORT
1
2
3
4
EXIT
CLEAR
THERMISTOR ERROR
TANK: OK
COLLECTOR SHORT
Sensor Mounting
For BMS (voltage free contacts) connection to the controller, remove the cover and wire the connections to the
points identified in Figure 3 below.
CN6
QC1
QC2
CN5
CN4
CN2
MOV2
MOV3
CN6
F1
CN1
QC1
QC4
QC6
QC2
QC5
QC3
CN5
CN3
CN4
RLY1
RLY4
RLY5
MOV1
PS1
CN2
USER PANEL
TEMP 2
DDSOLAR - Hot Temp. (Collector Temp.)
TEMP 1
DDSOLAR - Cold Temp. (TankTemp.)
COMMS
(Ethernet)
BMS
(Voltage Free Contacts)
Serial
Label
Barcode
Label
Figure 3. DDSOLAR Internal PCB showing Thermistor Connections
DDSOLAR OPERATION
Содержание DDPCDEL
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