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| Rinnai DDSTAT controller programming guide: 12697-C 03-20
Programming - DD400-1000 dual pump
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2
Select DD2 + 2P
You can cycle through the system configurations
using button 5 (the up arrow). This will present:
• DD1
•
DD2 + 1P (one pump)
•
DD2 + 2P (two pumps)
Select DD2 + 2P and press button 2 to ‘ACCEPT’.
SELECT VERSION
EXIT
ACCEPT
DD1
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2
3
4
5
SELECT VERSION
EXIT
ACCEPT
DD2+2P
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2
3
4
5
MEASURE RETURN
EXIT
ACCEPT
TEMPERATURE?
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3
4
5
NO
ALTERNATE PUMP
EXIT
ACCEPT
OPERATION
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3
4
5
YES
Pump setup
The pump setup screens allow you to add an
extra pump into the system configuration and also
set the time for when the pumps swap over, 12 or
24 hours.
3
SWAP PUMPS EVERY
ACCEPT
12 HOURS
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5
4
Bypass advanced setup
The default settings for advanced setup are:
• BMS connection --> open
• Controller ID* --> 1
In the majority of installations just select ‘No’ to
bypass. For more information refer to p.10.
* Controller ID refers to the controller number, you can have
up to 16.
CONTINUE TO
NO
YES
ADVANCED SETUP?
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3
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5
To set the Demand Duo system for two pumps ensure you have selected the DDSTAT mode by
following the instructions on p.6.
Measure return temperature
The default setting is ‘NO’. ‘Yes’ is only selected if
an extra sensor has been purchased (accessory
R5409) and installed for fault diagnosis.
Use buttons 5 and 4 (up and down arrows) to
switch between ‘NO’ and ‘YES’, and press button
2 to ‘ACCEPT’.
5
RINNAI SERVICE MENU
CONTINUE
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2
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5
EXIT
Access the Rinnai service menu
To reduce the chance of the system shutting down
due to failed ignition of the Rinnai INFINITY units
the pump needs to be set to interrupt. Selection
is between 25-31 minutes, for the frequency, and
a range of 15-45 seconds, for the length of time.
Rinnai recommend 28 mins/ 30 secs, refer p.10
for setting instructions.