Rinnai
18
HW Demand Duo Systems OIM
Ensure primary pump(s) are plugged into the controller and the controller is plugged into an available Socket
Outlet. Socket Outlets will need to be provided to match the product you are installing. If you have a Demand Duo
then Socket Outlets will need to be provided for all water heaters and controllers. If you have a Demand Duo PLUS
then only one Socket Outlet per row of heaters will need to be provided.
Once you have completed the assembly of the system you are ready to connect it up to the building plumbing.
DO NOT
turn any power onto the system until you are at the commissioning stage. Refer to commissioning
instructions and log as the back of this manual. Refer to Figure 3 to Figure 6 for assembly instructions.
Figure 3. Demand Duo
Figure 4. Demand Duo (Additional Tank)
Cold Water
Supply
Install provided relief valves
ensuring they are the
correct pressure rating
Hot Water
Out
Primary Pump
Flow Direction
Additional heat
source module(s)
depending on
system size
Heat source
module with
mounted
controller
Thermistor Wiring
Pipes & fittings by installer
●
Socket Outlets for each water heater and the temperature controller
MUST BE
provided by the installer.
●
Additional tanks can be used and
MUST BE
suitably plumbed with balanced pipework as indicated.
●
Ensure the thermistor is securely fitted to the well in the tank.
●
Ensure primary pump(s) are securely plugged into the temperature controller and
NOT
plugged directly into a
Socket Outlet
Cold Water Supply
Install provided relief valves
ensuring they are the
correct pressure rating
Hot Water
Out
Primary Pump
Flow Direction
Additional heat
source module(s)
depending on
system size
Heat source
module with
mounted
controller
Thermistor Wiring
Pipes & fittings by installer
●
A Socket Outlet for each water heater and the temperature controller
MUST BE
provided by the installer.
●
Additional tanks can be used and
MUST BE
suitably plumbed with balanced pipework as indicated.
●
Ensure the thermistor is securely fitted to the well in the tank.
●
Ensure primary pump(s) are securely plugged into the temperature controller and
NOT
plugged directly into a
Socket Outlet
INSTALLATION INSTRUCTIONS
Содержание Demand Duo
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