Is DualSun compatible with the Airwell TDF thermodynamic water heater?

Yes.

The DualSun SPRING hybrid panels can be coupled with the Airwell TDF Solar thermodynamic storage tank.

In order to achieve greater economic efficiency through the production of free renewable heat, it is necessary to give priority to solar hot water production.

The intelligence of the thermodynamic storage tank can be informed by an electrical signal and the time programs can be set to guarantee hot water comfort and optimise the operating ranges of the DualSun solar system. This with the aim of maximising the energy yield of the DualSun-Airwell coupling. 

In order to inform the intelligence of the thermodynamic storage tank so as to decide when to switch on the heat pump to guarantee optimum comfort at times of high demand, it is necessary to wire the DualSun SLL solar control to the electronic board of the thermodynamic storage tank and to install a control relay at the terminals of the electronic board.

 

1- Wiring (Two options are possible)

Option 1

Direct wiring with the dry contact R4 relay of the DualSun SLL solar controller according to the following diagram:

C_blage_ballon_Airwell_TDF_Solar_Option_1.png

Option 2

Wiring of the DualSun SLL solar controller to the thermodynamic water heater and place a single phase power relay to control the Airwell TDF Solar tank according the following diagram:

C_blage_ballon_Airwell_TDF_Solar_Option_2.png

 

2- Setting of the DualSun SLL solar controller

Option 1 Option 2
  1. Set system 1
  2. Activate the parallel relay OPARR option = ON
  3. Parallel relay : REL = R4
  4. Reference relay: RELR = R1
  5. INVER = OFF
  1. Set system 1
  2. Activate the parallel relay OPARR option = ON
  3. Parallel relay : REL = R2
  4. Reference relay: RELR = R1
  5. INVER = OFF

 

3- Setting of the thermodynamic water heater

Hourly programming according to the household profile, shower in the evening or in the morning.

  • Evening: HOn = 17h00 ; HOff = 23h00
  • Morning: HOn = 0h00 ; HOff = 6h00


See chapter 10 of the installation instructions of the Airwell TDF Solar storage tank

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