3.1.13 Rotational speedregulation

 

 

 

 

 

 

 

 

 

 

 

 

The solar circulation pump on 230V-outputsA1 and

 

 

 

 

 

 

 

 

 

 

 

 

A2 can be operated either in switch-mode (two-point

 

 

 

 

 

 

 

 

 

 

 

 

controller) or in a rotational speed regulated way.

 

 

 

 

 

 

 

 

 

 

 

 

If the rotational speed regulation is activated the pump

 

 

 

 

 

 

 

 

 

 

 

 

power is adjusted by a controller so that switch-on

 

 

 

 

 

 

 

 

 

 

 

 

temperature difference “Storage tank dTmax” is kept

 

 

 

 

 

 

 

 

 

 

 

 

constant as much as possible. At lower deviation of

 

 

 

 

 

 

 

 

 

 

 

 

“Storage tank dTmax” the pump is operated with the

 

 

 

 

 

 

 

 

 

 

 

 

lowest power till the switch-off wave is reached.

 

 

 

 

 

 

 

 

 

 

 

Correspondingvaluesin menu

 

 

 

 

 

 

 

 

 

 

 

 

“Basic adjustment”

 

 

 

 

 

“Programming”

 

 

 

 

 

 

 

 

 

 

 

 

 

---

 

 

 

 

 

 

Rotational speed min <100%

 

T[ºC]

 

 

Thermostat

 

 

 

 

3.1.14Thermostat (heating)

 

 

 

(Storage top)

 

 

 

 

The thermostat is a control circuit that’s independent

 

dT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

from the storage loading.Thus an auxiliary heating in

 

10k

 

 

 

 

 

 

 

 

 

 

the top area of the storage cylinder is made possible.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40ºC

 

 

 

 

 

 

 

 

 

The output A3 will be:

 

TTh

 

 

 

 

 

 

 

 

 

 

• Switched on, when the temperature falls below the

 

on

 

 

 

 

 

 

 

 

 

A3

 

 

 

Heating on (A3)

t

adjusted start level.

 

off

 

 

 

• Switched off, when the temperature reaches the

 

 

 

 

 

 

 

 

 

 

 

 

adjusted start level + hysteresis.

 

 

 

 

 

 

 

 

 

 

 

Correspondingvaluesin menu

 

 

 

 

 

 

 

 

 

 

 

 

 

“Basic adjustment”

 

 

 

 

 

“Programming”

 

 

 

 

 

 

 

 

 

 

 

 

14 --

2

 

 

 

 

 

Start temperature max ºC

 

15 --

5

 

 

 

 

 

 

Hysteresis Td in K

 

 

 

 

 

 

 

 

 

 

 

Timeframe (1…3) Start: min time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Timeframe (1…3) Stop: max time

 

 

 

 

 

 

 

 

 

 

 

 

3.1.15Thermostat (cooling)

 

 

 

 

 

 

 

 

 

 

 

 

In order to optimise the energy yield, it could be useful

 

 

 

 

 

 

 

 

 

 

 

 

to “redirect” the solar energy, or to take it away from

 

 

 

 

 

 

 

 

 

 

 

 

the storage when the storage temperature reaches a

 

 

 

 

 

 

 

 

 

 

 

 

certain level.

 

 

 

 

 

 

 

 

 

 

 

 

When the sensor reaches the start temperature, output

 

 

 

 

 

 

 

 

 

 

 

 

A3 will be switched on.When the temperature level falls

 

 

 

 

 

 

 

 

 

 

 

 

below the start temperature hysteresis, the output A3

 

 

 

 

 

 

 

 

 

 

 

 

will be switched off.

 

 

 

 

 

 

 

 

 

 

 

Correspondingvaluesin menu

 

 

 

 

 

 

 

 

 

 

 

 

 

“Basic adjustment”

 

 

 

 

 

 

“Programming”

 

 

 

 

 

 

 

 

 

 

 

 

14 --

1

 

 

 

 

 

Start temperature max ºC

15 --

5

 

 

 

 

 

Hysteresis Td in K

 

 

 

 

 

 

 

 

 

 

 

Timeframe (1…3) Start: min time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Timeframe (1…3) Stop: max time

Potterton Solar - Solar Thermal Domestic Hot Water System

17

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Baxi Potterton Solar manual Rotational speedregulation, 14Thermostat heating, 15Thermostat cooling

Solar specifications

Baxi Potterton Solar systems are designed to harness solar energy, transforming how we approach domestic heating and hot water. As one of the leading brands in renewable energy solutions, Baxi Potterton has integrated innovative technologies to offer efficient, eco-friendly products that meet modern energy needs.

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