DeDietrich DIETRISOL TRIO DT 250, DIETRISOL TRIO DT 350 User Manual

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DIETRISOL

Solar domestic hot water tanks

TRIO DT 250 - TRIO DT 350

User Guide

300028005-001-04

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Contents

1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.2 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1.3 Liabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

1.3.1 Manufacturer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3.2 Installer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.1 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.1.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.1 Homologations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.1.1 Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.1.2 Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

3.3 Main parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

4 Setting the DHW calorifier outlet temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4.1 Programming and setting the electrical back-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4.2 Setting the thermostatic mixing valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

5 solar regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.1 General description of how the unit operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.2 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.3 Adjustment keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

5.4 Measured values and adjustment parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

6 Checking and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

6.1 Solar installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

6.2 Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

6.2.1 Magnesium anodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

6.2.2 Safety valve or safety unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

6.2.3 Descaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

6.2.4 Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

6.2.5 Vent device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

6.3 Solar circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Warranty certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

7 Appendix - Information on the Ecodesign and Energy Labelling Directives. . . . . . . . . . . . . . . . . . . . . . . .20

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1 Safety instructions

1.1 General safety instructions

Danger



This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

Allowance must be made for a means of



disconnection in the fixed pipes in accordance with the regulations on installations.

If a power cord is provided with the appliance



and it turns out to be damaged, it must be replaced by the manufacturer, its after sales service or persons with similar qualifications in order to obviate any danger.

Draining the appliance:



` Turn off the domestic cold water inlet ` Open a hot water tap on the installation ` Open a safety unit valve ` When the water stops flowing, the appliance has

been drained

Respect the maximum water inlet pressure to



ensure correct operation of the appliance, referring to the chapter "Technical Specifications".

Any operation on the installation must be



performed by a qualified technician respecting professional regulations and in accordance with this document.

Before any work, switch off the mains supply to



the appliance. Protect the installation against any unwanted restarts.

Solar installations must be earthed to protect



them against lightning.

Operation of the thermostatic mixing valve on



the solar hot water tank outlet must be checked on commissioning of the solar system.

Pressure limiter device:



` The pressure limiter device (safety valve or safety

unit) must be operated regularly in order to clear out any limescale deposits and ensure that it is not blocked

` The pressure limiter device must be connected to

a discharge pipe

` As water may flow from the discharge pipe, it must

be kept open to the air, in a frost-free environment, in a continuous downward gradient

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1.2 Recommendations

.Heating water and domestic water must not



come into contact with each other. The circulation of drinking water must not be done in the exchanger but only in the tank.

Insulate the pipes to reduce heat losses to a



minimum.

Only remove the casing for maintenance and repair



operations. Put the casing back in place after maintenance and repair operations.

We recommend installing an EC175 package on the collector sensor.

The installation must comply in all matters to the standards and rules which govern the work and interventions in individual and collective homes, and other constructions.

France: DTU 65.12, NF P50-601, NF 12976-2.

1.3 Liabilities

Service the appliance regularly to ensure that it operates correctly. Contact a qualified professional or take out a maintenance contract for the annual servicing of the appliance.

As the heat transporting fluid leaks much more easily than water, carry out a visual check on the tightness of all fittings and gaskets after a few hours' operation at normal operating pressure.

To take advantage of the guarantee, no modifications must be made to the appliance. The choice of components for the solar system and their installation must follow the instructions in this manual.

Never remove or cover labels and rating plates



affixed to the appliance. Labels and rating plates must be legible throughout the entire lifetime of the appliance. Immediately replace damaged or illegible instruction or safety labels.

1.3.1 Manufacturer's liability

Our products are manufactured in compliance with the requirements of the various applicable European Directives. They are therefore delivered with 1 marking and all relevant documentation.

In the interest of customers, we are continuously endeavouring to make improvements in product quality. All the specifications stated in this document are therefore subject to change without notice.

1.3.2 Installer's liability

The installer is responsible for the installation and commissioning of the appliance. The installer is required to observe the following instructions:

` Read and follow the instructions given in the

manuals provided with the appliance

` Install the appliance in acordance with the legislation

and standards currently in force

Our liability as the manufacturer may not be invoked in the following cases:

` Failure to abide by the instructions on installing the

appliance

` Failure to abide by the instructions on using the

appliance

` Faulty or insufficient maintenance of the appliance

` Give all the instruction manuals to the user

` Perform the initial start up and carry out any checks

necessary

` Explain the installation to the user

` If a maintenance is necessary, warn the user of the

obligation to check the appliance and maintain it in good working order

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2 About this manual

2.1 Symbols used

2.1.1 Symbols used in the manual

In these instructions, various markings and pictograms are used to draw your attention to particular information. In so doing, De Dietrich Thermique S.A.S wishes to safeguard the user's safety, obviate hazards and guarantee correct operation of the appliance.

Danger



Risk of a dangerous situation causing serious physical injury.

Warning



Risk of a dangerous situation causing slight physical injury.

Caution



Risk of material damage.

Specific information.



Reference

Refer to another manual or other pages in this instruction manual.

` DHW: Domestic hot water.

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3 Technical specifications

3.1 Homologations

3.1.1 Certifications

 NF certification

3.1.2 Directives

 Compliance of design and manufacture

This product conforms to the requirements of european directive 97 / 23 / EC, article 3, paragraph 3, on pressure equipment.

Electrical compliance / Marking



This product complies to the requirements to the european directives and following standards:

• 2006/95/EC Low Voltage Directive Reference Standard: EN 60.335.1 Reference Standard: EN 60.335.2.21.

2004/108/EC Electromagnetic Compatibility Directive Reference Standards: EN 50.081.1 / EN 50.082.1 / EN 55.014.

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3.2 Technical data

DIETRISOL TRIO DT 250

Solar exchangers °C 120 120

Maximum operating temperature

Maximum operating pressure Mpa (bar) 0.7 (7) 1 (10)

Maximum operating pressure in accordance with W/TPW

Water content

Surface area

Operation with boiler back-up

Operation with electrical back-up

Continuous output

Flow rate for 10 minutes where volume) (2) (4)

Maintenance consumption kWh/24h 2.2 2.7

Cooling constant Cr Wh/lKj 0.22 0.19

(1) Swiss Directives (2) Domestic cold water input at 10°C - Primary inlet temperature at 80 °C

Values measured with a wall-mounted boiler (3) Domestic hot water temperature: 45 °C (4) Domestic hot water temperature: 40 °C (5) Domestic cold water inlet 15 °C (6) Values measured only on the back-up volume

Domestic hot water load setting: 60 °C

∆T = 35 K (2) (3)

∆T = 30 K (on make-up

Boiler heat exchanger °C 90 90

tank °C 90 90

(1)

Solar exchangers litres 9 8.1

Boiler heat exchanger litres 4.3 4.9

tank litres 250 350

Upper solar heat exchanger

Lower solar heat exchanger

Boiler heat exchanger

Top up volume litres 105 127

Solar volume litres 145 223

Power exchanged (2) (3) kW 21 23

Top up volume litres 130 160

Solar volume litres 120 190

Output of the electrical back-up kW 2.4 3

Back-up volume heating time (from 15 to 60°C)

Vecs 40 (5) (6) Domestic hot water storage temperature: 55 °C

Vecs40 (5) (6) Domestic hot water storage temperature: 60 °C

Mpa (bar) 0.6 (6) 0.6 (6)

h 2h50 2h50

litres 355 420

litres 385 450

l/h 515 565

l/10 mm 190 230

0.48 0.48

0.86 0.96

0.64 0.72

DIETRISOL

TRIO DT 350

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3.3 Main parts

Dietrisol TRIO DT is a high performance solar DHW tank/calorifier designed to be connected to Dietrisol NEO or POWER solar collectors and an De Dietrich central heating boiler.

It is designed in such a way as to be able to cope with a solar collector surface area of up to 4.5 m conditions set out in the chapter "Hydraulic Connection Primary Solar Circuit".

(DT 250) and 6.5 m2 (DT 350) under the



tank

The high quality steel tank is lined with food standard quality vitrified enamel, which protects it from corrosion and preserves all the qualities of the domestic water. The Dietrisol TRIO DT tank is fitted with 2 heat exchangers per zone for solar heating and one heat exchanger for supplementary heating by means of a fuel oil or gas boiler.



Protection against corrosion

The tank is also protected from corrosion by two magnesium anodes which must be inspected every 2 years and replaced if necessary.



Heat exchanger

The thermal exchanger welded into the tank is made of smooth piping, the inside of which, which is in contact with the domestic water, is enamelled.



Insulation

The tank is strongly insulated with high strength rigid polyurethane foam with no chlorofluorocarbons (CFC), 50 mm thick to minimise heat loss.

Pressure gauge - Primary solar circuit

Safety control unit for the solar circuit (6 bar)

Blue thermometer (tank solar heat exchangers outlet)

Red thermometer (tank solar heat exchangers inlet)

Primary solar circuit pump

Manual bleed degasser

2-position 3-way directional valve

Sol Plus TRIO regulator

8 l/6 bar expansion vessel, 2-bar pre-load

Automatic connection for expansion vessel

Primary solar circuit filling and draining device

Magnesium anode

Electric heating resistance

Magnesium anode



Casing

The outside casing is made of painted steel sheeting. The top and side covers are made of ABS.

Solar station



The solar heating pump unit comprises the solar circuit safety unit, a pressure and temperature gauge and a flowmeter to visualise circulation of the solar fluid between the collectors and the DHW tank. An expansion vessel is connected to the solar unit; it is used to compensate for the expansion of the solar fluid in which the temperature varies between 0 and 150°C.



Sol Plus TRIO regulator

The control system is the solar system's brain; it makes the solar heating pump run at variable speeds according to the difference in temperature between the bottom of the DHW tank and the solar collectors. The control system manages the set point temperature (temperature to be attained in the DHW tank), overheating and nighttime cooling. The control system also displays the various operating modes, the temperatures in the collectors and in the bottom of the DHW tank, as well as signalling any malfunctions.

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4 Setting the DHW calorifier outlet temperature

4.1 Programming and setting the electrical back-up

The temperature of the volume of water heated by the electrical resistor is set by the installer on commissioning of the installation according to the size of the home.

Using the programming device installed in the electrical panel, it is possible to adjust the volume of water heated to 40°C by the resistor in two ways:

4.2 Setting the thermostatic mixing valve

` By forcing contunuous heating by the resistor (off-peak hours

contact) for significant unforeseen needs.

` By programming the heating time outside off-peak periods (2

hours maximum according to the DHW volume at 40°C required) to compensate for the lack of sunshine in winter, for example. The programmed period outside off-peak hours must preferably be between 12 h and 18 h.

28. Domestic cold water inlet

57. DHW tank domestic hot water outlet

The mixing valve is set in the factory for a DHW outlet temperature of 60°C (position 6). To lower this temperature, remove the top cover and turn the wheel anti-clockwise. In position 1, the outlet temperature is lowered to 35°C.

C003732-A

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5 solar regulator

Always fitted to installation type 1 (Parameter ANL 1).

5.1 General description of how the unit operates

In automatic mode, the regulator operates in accordance with the following principles:

` The sun's irradiation heat the transfer fluid in the collector. For

the regulation process to be triggered, a minimum temperature of 30 °C is required in the collector and there must be a temperature difference of 10 K by comparison with the tank.

` During the self-calibration phase that follows (adjustment

parameter tu, factory setting: 3 minutes), the solar pump (relay

1) operates at full speed (100 %).

` Subsequently, the solar pump regime is calculated dynamically

depending on a difference between the reference temperature (parameter DT, factory setting 20 K) and the calorifier temperature.

` When the zonal reversal temperature is reached in the

collectors (adjustment parameter SZ, factory setting 55°C), the relay R2 switches the reversal valve to the upper zone in the calorifier. The user therefore has immediate access to domestic hot water at the set temperature.

Installation 1

See next page (Start-up).

- If the heating return temperature is equal to or greater than the temperature of the solar tank, heating return is direct to the boiler.

- If the temperature in the solar tank is higher than the heating return temperature, heating return passes via the solar tank. The energy coming from the sun's rays or from a biomass boiler is thus exploited to heat the home.

` When the zonal reversal temperature is reached (adjustment

parameter SZ, factory setting 55°C), the set reference temperature difference is lowered from 20 K to 10 K.

` Depending on the heat available, the system heats up the solar

tank and cuts off when the tank storage temperature is reached (adjustment parameter SX, factory setting: 60 °C).

` When the temperature in the collectors reaches the maximum

value (adjustment parameter CX, factory setting 100°C), the solar pump is triggered to cool the collectors. The pump continues to operate until the temperature in the collectors is lower than 5 K at parameter CX and/or the maximum storage temperature (85°C) is reached in the hot water storage tank. As soon as the temperature in the collectors drops below the temperature in the calorifier, the calorifier is cooled down to its set temperature. The installation is thus protected against overheating and repeated stoppages, allowing thus the prolonged absence of the user even in the summer period.

` The amount of heat transferred from the collectors to the tank

is displayed as parameter AH. The value is cumulative and is constantly updated.

` The regulator (installation 2- ANL2 with heating back-up)

includes an additional function: A temperature sensor S3 is located on the heating return.

Installation 2

5.2 Start-up

%

If the temperature in the solar collectors is higher than 130°C, the control system operates in safety mode. Wait until the evening before start-up or cool down (cover)

the solar collectors.

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Switch on the device. When initialisation is complete, the regulator changes to automatic mode. The factory settings for this mode give optimum performance with most installations.

The regulator is configured in the factory for installation type 1



(parameter ANL=1).

If special conditions make it necessary to change the settings, the corresponding adjustment parameters can be reset.

5.3 Adjustment keys

Installation 1

Installation 2

The regulator is controlled by the 3 keys only located below the display.

The down key is used to go to the next menu or to increase the settings values.

The up key has the opposite effect.

The adjustment parameters are displayed after the measured values. To access these parameters, hold down the down key for 2 sec. in the TC parameter. When the display shows an adjustment parameter, the word SET appears. To set the value displayed, press the middle button SET.

1. Select the desired channel with the up and down keys.

2. Press the SET key: The word SET flashes.

3. Set the value with the up and down keys.

4. Press the SET key: The set value is stored. The word SET stops

flashing.

B000143-A

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5.4 Measured values and adjustment parameters

Channel Abbreviation Range Increment Factory setting

Collector temperature Calorifier temperature Amount of heat Pump regime Self-calibration time Return temperature Additional temperature Type of installation

Temperature difference enabling the passage of the heating return via the solar tank

Temperature difference enabling heating return directly to the boiler

Reference temperature difference Zone changeover temperature (tank) Set temperature of the solar calorifier Maximum collector temperature Self-calibration phase Pump minimum speed Pump command mode Tubular solar collector function

Maximum flow rate

Manual mode Software version

TC [-50.0 ... 250.0] °C - -

TS [-50.0 ... 250.0] °C - -

kWh [0 ... 9999] kWh - -

PC [0 ... 100] % - -

tc [0 ... 5] minutes - -

TR -50...250°C - -

TM -50...250°C - -

ANL

DO [0.5 ... 19.5] K 0.1 6

DF [0.4 ... 19.5] K 0.1 4

DT [10 ... 20] K 0.1 20

SZ [20 ... 80] °C 0.1 55

SX [20 ... 80] °C 0.1 60

CX [100 ... 125] °C 0.1 100 °C

tu [1 ... 5] minutes 1 3

PN [20 ... 100] % 1 30

POMP OnOF / PuLS / PSOL PSOL

FT [0 ... 1] 1 0

Fx [0 … 20] l/min 0.1

MM [0 ... 4] 1 4

VN - - 2.00

Installation 1 Installation 2

- Installation 1

Installation 1: 6.7 Installation 2: 4.2

Measured values

Adjustment parameter

The regulator has a safety system that cuts off the tank at



temperatures of over 80°C.

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 Measured value TC - Collector temperature

The value TC shows the temperature in °C given by the collector sensor in real time.

Measured value TS - DHW sensor temperature



Solar installation for the preparation of domestic hot water with a DC mixed calorifier and for heating back-up with temperature control on the heating return circuit. The temperature control on the heating return circuit prevents the boiler having to maintain the temperature of the back-up volume in the calorifier in the event of prolonged absence of sunshine.

The value TS shows the temperature in °C given by the tank sensor in real time

Measured value kWh - Amount of heat



The value kWh shows in kWh the total amount of heat produced by the installation since the regulator was put into service.

The quantity of heat (kWh value) can only be used for checks



carried out for personal reasons.

Measured value tc - Self-calibration time



The value tc shows the self-calibration phase time remaining in seconds. During the self-calibration phase, the pump operates at full speed (100 %); its speed is only controlled after the self-calibration phase.



Measured value TM - Additional temperature

An optional additional temperature sensor can be connected to terminals 7 and 8. For example: Temperature in the top of the calorifier.



Adjustment parameter ANL -Type of installation



Adjustment parameter DO - Temperature difference enabling the passage of the heating return via the solar tank

Adjustment range: 0.5 ... 19.5 K Factory setting: 6 K

The parameter DO is used to set the temperature difference above which heating return is directed via the 3-way valve to the solar tank. Heating return thus passes via the solar tank if the solar tank temperature is higher by at least 6°C than the heating return temperature.

If the parameter ANL is set to 1 (installation 1), the parameter



DO is deactivated

Adjustment parameter DF - Temperature



difference enabling heating return directly to the boiler

Adjustment range: 0.4 ... 19.5 K Factory setting: 4 K

The parameter DF is used to set the temperature difference below which heating return is directed from the 3-way valve directly to the boiler. The solar energy stored in the solar tank is insufficient to

The adjustment parameter ANL is used to select the following installation configurations:

ANL 1 = Installation 1:

- Preparation of domestic hot water using a DIETRISOL TRIO calorifier.

- Preparation of domestic hot water using a tank with 2 exchangers connected to the solar circuit.

ANL 2 = Installation 2:

16/07/2015 - 300028005-001-04 TRIO DT 250 - TRIO DT 350

reheat the heating return. Heating return is thus directed directly to the boiler if the solar tank temperature is lower by at least 4°C than the heating return temperature.

If the parameter ANL is set to 1 (installation 1), the parameter



DF is deactivated

Page 14

 Adjustment parameter DT - Reference

temperature difference

Adjustment range: 10 ... 20 K Factory setting: 20 K

Switching-on difference: Non-adjustable value 10 K



Switching-off difference: Non-adjustable value 5 K

The regulator reads the temperatures measured by sensors S1 (TC) and S2 (TS) and compares the resulting temperature difference with the switching-on difference which is preset to 10 K. Regulation is activated when the temperature difference ∆T is equal to or greater than the preset value. The display shows . When the value falls below the preset 5 K switching-off difference, the regulator switches off. The regulator tries to achieve a temperature difference of 20 K (factory setting) between the collector and the tank to produce high temperature hot water as rapidly as possible. To do this, it uses dynamic speed control.



Adjustment parameter SZ - Zone changeover temperature



Adjustment parameter SX - Set temperature of the solar calorifier

Adjustment range: 20 ... 80 °C Factory setting: 60 °C

Maximum tank temperature (emergency cut-off): Non-



adjustable value 85 °C

The set temperature Sx is the desired temperature for the solar calorifier.

If the maximum tank temperature is exceeded, tank heating is interrupted to prevent damage due to overheating. The display shows and (flashing).

The higher the set temperature for the calorifier, the greater the energy stored. Setting to 60 ... 75°C is suitable for normal use with daily draw-offs.

In the event of prolonged absences (weekend, holidays):

- Reduce the calorifier temperature to 50°C

- Turn off the back-up (boiler or electrical resistance)

Adjustment range: 20 ... 80 °C Factory setting: 55 °C

If the temperature in the collectors reaches value SZ, the relay R2 closes.

If the temperature in the collectors is lower than value SZ, the arrow

flashes.

If the temperature in the collectors is higher than value SZ, the arrow

flashes.

We advise you to set the domestic hot water booster



temperature to 50°C. If the customer wants a higher temperature, parameter SZ will have to be changed. SZ is set to 55°C in the factory and must always be 5K higher than the DHW booster circuit temperature setting(s). If the domestic hot water boiler circuit is set at more than 50°C, SZ must be adjusted to 5K above this DHW circuit temperature setting. If the booster is electric, the resistance thermostat must be set at 50°C.

The installation is thus protected against overheating and the longevity of the heat conducting fluid is conserved.

TRIO DT 250 - TRIO DT 350 16/07/2015 - 300028005-001-04

Page 15

 Adjustment parameter CX - Maximum collector

temperature



Adjustment parameter PN - Pump minimum speed

Adjustment range: 100 ... 125 °C Factory setting: 100 °C

Maximum collector temperature (overheating safety): Non-



adjustable value: 130 °C.

If the temperature in the collector rises above its maximum temperature CX even though the solar circuit is stopped (tank set storage temperature reached), the solar pump (R1) switches on and cools the collector (system cooling). In these conditions, the tank temperature rises, but it can't exceed 85 °C (safety cut-off).

If the calorifier reaches the maximum temperature of 80°C (safety shutdown), the regulator switches off the solar pump.

The collectors may reach a temperature of 160 ... 200°C, which



is normal for a solar installation.

The cooling functions allows heat to dissipate; the system thus remains operational longer during hot summers. When it leaves the factory, the collector's maximum temperature is preset to 100 °C; however, it is possible to change this within the range 100 ... 125 °C. If the maximum collector temperature is exceeded, the display shows

, and (flashing).



Adjustment parameter tu - Self-calibration phase

Adjustment range: 20 ... 100% Factory setting: 30%

Adjustment parameter PN sets a minimum value for the solar pump speed at the relay R1 output. The lower the pump regime, the lower its flow.



Adjustment parameter POMP - Pump command mode

Adjustment range: OnOF / PuLS / PSOL Factory setting: PSOL

The POMP parameter is used to select the correct command program for the solar pump, according to the type of pump used.PSOL control (default setting) is designed for PWM solarcontrolled heating pumps, PuLS control for conventional frequencymodulation heating pumps and OnOF control for "ON/OFF heating pumps.



Adjustment parameter FT - Tubular solar collector function

Adjustment range: 0/1 Factory setting: 0

Adjustment range: 1 ... 5 minutes Factory setting: 3 minutes

When the solar collector reaches a minimum temperature of 30 °C and a preset temperature difference of 10 K from the tank temperature, the regulator switches on the solar circulating pump at full speed for the time period set by parameter tu. During this phase, any air bubbles present in the solar collectors or the pipes are moved to the complete solar station by the high circulation speed in the pipes and eliminated by the Airstop system (manual bleed degasser).

After this phase, the regulator changes to "matched flow" mode. The remaining self-calibration time is displayed with parameter tc.

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0: no 1: yes

If the regulator detects a temperature rise in the collector of 2 K compared to the last measurement, the solar pump runs at full speed for 30 seconds to measure the current average temperature.

The measured temperature thus becomes the new reference temperature.

If the measured temperature (new reference) then increases again by 2 K, the solar pump starts again for 30 seconds.

The regulator switches automatically to solar heating mode if the temperature difference between the collector and the calorifer exceeds the switching-on temperature difference when the solar pump is operating or the system is stopped.

If the collector temperature falls by 2 K while the system is stopped, the tubular solar collector activation temperature is rechecked.

Page 16

 Adjustment parameter Fx - Maximum flow rate

` Tubular solar collectors

C000191

Adjustment range: 0 ... 20 l/min Factory setting: Installation 1: 6.7 - Installation 2: 4.2

In order for the regulator to calculate the quantity of heat produced by the installation (parameter kWh), input parameter Fx. The parameter Fx is equal to the flow in litres per minute in the solar circuit. Determine the value Fx using the following tables, according to the configuration of the installation and the number or surface area of the collectors. When the flow is input incorrectly, the display kWh will also be incorrect.

The quantity of heat (kWh value) can only be used for checks



carried out for personal reasons.

` Flat solar collectors

Solar panel installation

Area

3 ... 5 1 or 2 400 6.7

6 ... 8 3 or 4 300 5

8 ... 10 4 or 5 250 4.1

8 ... 10 2x2 750 12.5

12 ... 15 2x3 670 11.2

16 ... 20 2x4 450 7.5

12 ... 15 3x2 850 14.2

18 ... 23 3x3 800 13.4

24 ... 30 3x4 650 10.9

16 ... 20 4x2 1200 20

24 ... 30 4x3 850 14.2

Number of

panels

Flow rate

l/h

Flow rate

l/min

Number of panels

minimum: 1x4 820 13.7

1x5 750 12.5

1x6 680 11.4

1x7 610 10.2

1x8 540 9

1x9 470 7.8

1x10 250 4.1

2x3 1400 20

2x4 1250 20

2x5 1100 18.4

2x6 950 15.9

2x7 750 12.5

2x8 600 10

2x9 540 9

2x10 400 6.7

Adjustment parameter MM - Operating mode



Flow rate

l/h

Flow rate

l/min

Adjustment range: 0 ... 4 Factory setting: 4

For inspection and maintenance work, it is possible to operate the regulator in manual mode. To operate the regulator in manual mode, it is necessary to input parameter MM from the following table.

MM1 R1 R2

0Open Open

1Closed Open

2Open Closed

3Closed Closed

4 automatic automatic

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Page 17

6 Checking and maintenance

6.1 Solar installation

We recommend that you take out a preventive maintenance contract to check the fluid level, antifreeze protection, pressure in the system, leak test and general operation every year or every two years.

6.2 Tank

6.2.1 Magnesium anodes

The magnesium anode must be checked by a qualified professional at least every 2 years.

6.2.2 Safety valve or safety unit

Have the condition of the anode checked after the first year. The magnesium anode must be checked by a qualified professional at least every 2 years.

6.2.3 Descaling

In hard water regions, it is advisable to ask the fitter to descale the DHW tank exchanger once a year in order to maintain its level of performance.

6.2.4 Casing

The casing of the DHW tank can be cleaned with soapy water.

6.2.5 Vent device

If the vent device is not used, the installer must check the seal on the top vent connection.

6.3 Solar circuit

To check operation of the solar system, consult the display on the control system.

The pressure in the solar circuit can be checked on the solar station's pressure gauge. If the pressure shown is lower than 0.5 bar, call the installer.

Never carry out work on the solar circuit yourself. Never



work on the safety valve yourself.

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Page 18

Warranty

You have just purchased one of our appliances and we thank you for the trust you have placed in our products. Please note that your appliance will provide good service for a longer period of time if it is regularly checked and maintained. Your fitter and our customer support network are at your disposal at all times.



Warranty terms

Starting from the purchase date shown on the original fitter's invoice, your appliance has a contractual guarantee against any manufacturing defect.

The length of the guarantee is mentioned in the price catalogue. The manufacturer is not liable for any improper use of the appliance

or failure to maintain or install the unit correctly (the user shall take care to ensure that the system is installed by a qualified fitter). In particular, the manufacturer shall not be held responsible for any damage, loss or injury caused by installations which do not comply with the following:

- applicable local laws and regulations

- specific requirements relating to the installation, such as national

and/or local regulations

- the manufacturer's instructions, in particular those relating to the

regular maintenance of the unit

- the rules of the profession

The warranty is limited to the exchange or repair of such parts as have been recognised to be faulty by our technical department and does not cover labour, travel and carriage costs. The warranty shall not apply to the replacement or repair of parts damaged by normal wear and tear, negligence, repairs by unqualified parties, faulty or insufficient monitoring and maintenance, faulty power supply or the use of unsuitable fuel. Sub-assemblies such as motors, pumps, electric valves etc. are guaranteed only if they have never been dismantled.

Italy



The duration of our warranty is shown on the certificate delivered with the appliance.

Our liability as manufacturer may not be invoked in respect of incorrect use of the appliance, incorrect or insufficient maintenance thereof, or incorrect installation of the appliance (you must therefore ensure that installation and maintenance operations are carried out respectively by a qualified professional and by an after sales service company).

The legislation laid down by European Directive 99/44/EEC, transposed by Legislative Decree No. 24 of 2 February 2002 published in O.J. No. 57 of 8 March 2002, continues to apply.



Russia

The foregoing provisions in no way affect the rights of the consumer, which are guaranteed by the legislation of the Russian Federation as regards hidden defects.

The terms and conditions of warranty and the terms and conditions of application of the warranty are indicated on the warranty form.

The warranty shall not apply as regards the replacement or repair of wearing parts under normal use. Such parts include thermocouples, injection nozzles, flame control and ignition systems, fuses and gaskets.



Turkey

Due to the laws and regulations the product life for this product is 10 years. During that time the producer and/or the distributor has to provide after sales services and spare parts.

Other countries



The above provisions do not restrict the benefit of the legal laws regarding hidden defects applicable in the buyer's country.



France

The preceding dispositions are not exclusive of benefits for the purchaser of the legal guarantee as stated in Civil Code articles 1641 to 1648.



Poland

Warranty conditions are included in the warranty card.



Switzerland

The application of the warranty is subject to the terms and conditions of sale, delivery and warranty of the company marketing our products.



Belgium

The preceding dispositions about the contractual guarantee are not exclusive of profit if the need arises for the purchaser in Belgium of the applicable legal dispositions on hidden defects.

TRIO DT 250 - TRIO DT 350 16/07/2015 - 300028005-001-04

Page 19

Warranty certificate

Date of purchase: .............................................................................

Name and address of the purchaser: ...............................................

..........................................................................................................

Tel.:...................................................................................................

Information on the appliance (to be found on the nameplate):

Model: ...............................................................................................

Serial number: ..................................................................................

Retailer's stamp:

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Page 20

Appendix

Information on the ecodesign and energy labelling directives

Page 21

Contents

2 300028005 - ErP01 - 24072015

Contents

1 Specific information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Ecodesign Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Technical data - Hot water storage tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4 Circulation pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.5 Disposal and Recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.6 Product fiche - Solar devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Page 22

1 Specific information

300028005 - ErP01 - 24072015 3

1.1 Recommendations

1 Specific information

Note Only qualified persons are authorised to assemble, install and maintain the installation.

1.2

1.3

Tab.1 Technical parameters for hot water storage tank

Ecodesign Directive

This product conforms to the requirements of European Directive 2009/125/EC on the ecodesign of energy-related products.

Technical data - Hot water storage tank

Product name DIETRISOL TRIO

DT 250

Storage volume V l 250 350

Standing loss S W 92 113

1.4 Circulation pump

Note The benchmark for the most efficient circulators is EEI ≤ 0.20.

1.5

Disposal and Recycling

Note Removal and disposal of the domestic hot water tank must be car ried out by a qualified installer in accordance with local and nation al regulations.

DIETRISOL TRIO DT 250

1. Cut the electricity to the domestic hot water tank.

2. Disconnect the cables on the electrical components.

3. Close the domestic water inlet valve.

4. Drain the installation.

5. Dismantle all water connections fitted to the domestic hot water tank outlet.

6. Scrap and recycle the domestic hot water tank in accordance with local and national regulations.

1.6

Tab.2 Product fiche for solar devices

Product fiche - Solar devices

Brand name - Product name DIETRISOL

TRIO DT 250

Solar hot water storage tank - Energy efficiency class

Solar hot water storage tank - Standing loss W 92 113

Solar hot water storage tank - Storage volume l

Power consumption - Pump W 23 23

Power consumption - Standby W 0.54 0.54

250

0.250

DIETRISOL TRIO DT 350

350

0.350

Page 23

1 Specific information

4 300028005 - ErP01 - 24072015

Brand name - Product name DIETRISOL

TRIO DT 250

Annual auxiliary energy consumption

aux

)

kWh 51 51

DIETRISOL TRIO DT 350

Page 24

DE DIETRICH THERMIQUE S.A.S

+49 (0)25 72 / 9161-0

+49 (0)25 72 / 9161-102

info@remeha.de

ɊɨɫɫɢɹɝɆɨɫɤɜɚ

Ɂɭɛɚɪɟɜɩɟɪɟɭɥɨɤɞ

ɨɮɢɫ

+7 (495) 221-31-51

info@dedietrich.ru

DE DIETRICH THERMIQUE Iberia S.L.U.

www.dedietrich-calefaccion.es

C/Salvador Espriu, 11

08908 L’HOSPITALET de LLOBREGAT

+34 935 475 850 info@dedietrich-calefaccion.es

DUEDI S.r.l.

www.duediclima.it

Distributore Ufficiale Esclusivo

De Dietrich-Thermique Italia Via Passatore, 12 - 12010 San Defendente di Cervasca CUNEO

+39 0171 857170 +39 0171 687875 info@duediclima.it

BDR Thermea (Czech republic) s.r.o

www.dedietrich.cz

Jeseniova 2770/56

130 00 Praha 3 +420 271 001 627 info@dedietrich.cz

DE DIETRICH SERVICE

www.dedietrich-heiztechnik.com

Freecall 0800 / 201608

AD001NU-A,

All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions supplied, remain our property and shall not be multiplied without our prior consent in writing.

Subject to alterations.

16/07/2015

DE DIETRICH THERMIQUE

300028005- 001- 04

57, rue de la Gare F- 67580 MERTZWILLER - BP 30