Orkli 97_033_41–DBL-01-de Thermal Switching Unit Solar Hot Water User Manual
- May 15, 2024
- Orkli
Table of Contents
Orkli 97_033_41--DBL-01-de Thermal Switching Unit Solar Hot Water User Manual
FUNCTION
The “Solar Sanitary Kit” is a set that connects to the auxiliary sanitary
water heating equipment that is installed between the solar sanitary storage
tank and the power supply support: normally, it is an instant boiler, a heater
or an electric water heater.
Since the solar sanitary storage tank does not have a stable temperature, the
input to the supply support must be adjusted. This way, the “Solar Sanitary
Kit” is installed at the input to this supply and it automatically regulates a
by-pass and the sanitary hot water outlet temperature.
COMPONENTS
- 3-way valve:
This component is an element that determines whether the water from the solar storage tank should go through the supply support or if it can be taken directly for consumption.
a. If the input temperature is >48ºC, the 3-way valve bypasses the conventional supply support and takes the water for consumption directly to the output mixer.
b. If the input temperature is <48ºC, the valve deactivates the bypass and makes the water for consumption circulate through the supply support.
This way, the additional heat source will increase the temperature of this water as necessary for it to have sufficient temperature at the sanitary outlet.
This valve is fully watertight and, this way, it prevents any leakage whatsoever to the support system when the solar storage tank temperature is higher than the offset temperature. This prevents having a very high temperature at the auxiliary equipment’s cold water inlet.
- Mixing valve:
The mixing valve
will adjust the sanitary water outlet temperature of the solar system + the
conventional support. The hot water supply goes through this element, whether
the flow goes through the support equipment or not, which ensures a controlled
and stable temperature at the outlet.
Through being able to have temperatures above 55ºC in the solar storage tank or at the conventional supply outlet, the mixer will avoid the risk of burns due to excessively high temperatures.
TECHNICAL SPECIFICATIONS
- Valve material: brass, according to the EN12165 standard.
- Gasket material: EPDM.
- Connections: ½” M; Nut/biconic pipe Ø 15mm CU or flat joint.
- Maximum working temperature: 90ºC.
- Maximum working pressure: 10bar.
- 3-way valve/offset temperature calibration: 48ºC.
- Offset temperature tolerance: ± 2ºC.
- Thermostatic mixer adjustment range: 30-60ºC.
- Mixer outlet temperature calibration: 45ºC.
- Kv ( 3-way valve): 1.2m3/h.
- Kv (mixing valve): 1.4m3/h.
- Components suitable for use with sanitary water.
HYDRAULIC SPECIFICATIONS
INSTALLATION
The Solar Sanitary Kit must be installed between the solar storage tank and the conventional support system. The solar storage tank’s hot water outlet must be connected to the inlet of the Solar Sanitary Kit:
The connections of the inlets are shown in the following diagrams:
Adjustment of output temperature
By modifying the thermostatic mixer’s adjustment point, the adjustment point
of the pre-set temperature of 45ºC can be modified. The output temperature at
the nearest sanitary outlet must be assured and the temperature within the
range of 30-60ºC must be adjusted to the desired temperature.
GUARANTEE
The Solar Sanitary Kit is guaranteed against all material faults for 3 years from the manufacturing date marked on it. This guarantee is not applied if the assembly has been manipulated, modified or has deteriorated through being used or installed in a way that does not coincide with the instructions provided by the manufacturer.
ORKLI, S. Coop.
Ctra. Zaldibia, s/n
E – 20240 Ordizia (Gipuzkoa)
Tel.: + 34 943 80 51 80
Fax: + 34 943 80 52 41
E-mail: solarorkli@orkli.es
www.orkli.com