DIETRISOL TRIO DT 250/3 - De Dietrich heating · 7. Automatic bleed valve 8. Manual bleed valve 9....

DIETRISOL TRIO DT 250/3Solar domestic hot water tanks English

07/11/06

Installation instructions

Instructions for use

Technical instructions

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Symbols used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Important recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 Detailed drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Package list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 Main dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 Technical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Primary solar water circuit connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101 Outlet and return pipes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 Solar Panel Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Hydraulic connection of the water circuit for domestic use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Hydraulic connections to the boiler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Electrical connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Commissionning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151 Secondary circuit (domestic water) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152 Primary boiler circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153 Primary solar circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164 Filling the solar circuit with heat transfer fluid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175 Bleed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186 Antithermosiphon valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .187 Final checks before commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198 Summer shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .199 Regulate technical to respect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1910 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Spare parts - DIETRISOL TRIO DT 250/3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Installation report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Maintenance form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Warranty certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

2 DIETRISOL TRIO DT 250/3 07/11/06 - 300004371-001-E

Introduction

Dietrisol TRIO DT 250/3 is a high performance solar DHW tank/calorifier designed to be connected to Dietrisol PRO or POWERsolar collectors and an De Dietrich central heating boiler.It is designed to be connected to solar collectors with an area of upto 7.5 m2 in accordance with the conditions stated in "Primary solarwater circuit connections".

If the total pipe length exceeds 30 m or if the collector areaexceeds 7.5 m2, it is imperative to add an extra expansionchamber.

It is possible to add a supplementary electrical resistance (optional)to heat the upper part of the tank if the boiler is not in use (Summeroperating mode).

1 Symbols used

2 Compliance

Compliance of design and manufacture

This product complies with the requirements of European Directive97 / 23 / EC, Article 3, Paragraph 3, on pressure equipment.

Electrical compliance Marking

This product complies to the requirements to the European Directivesand following standards:

• 73/23/EEC Low Voltage DirectiveReference Standard : EN 60.335.1.

• 89/336/EEC Electromagnetic Compatibility DirectiveReference Standards : EN 50.081.1 / EN 50.82.1 / EN 55.014

3 Important recommendations

Positioning the appliance:- in a frost-free room- on a base to facilitate cleaning the room- as close as possible to draw-off points in order to minimise energy

losses through the pipes.- Insulating the pipes.

Heating water and domestic water must not come intocontact with each other. Domestic water must not circulatevia the exchanger.

Service the appliance regularly to ensure that it operates correctly.Any operation on the installation must be performed by aqualified technician respecting professional regulationsand in accordance with this document.

Keep this document close to the place where the tank is installed.No modifications must be made to the domestic hot water tank if theguarantee is to remain valid.

Caution danger Risk of injury and damage to equipment.Attention must be paid to the warnings on safety of persons and equipment.

Specific information Information must be kept in mind to maintain comfort

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

307/11/06 - 300004371-001-E DIETRISOL TRIO DT 250/3

4 Description

The Dietrisol TRIO DT 250/3 tank is fitted with 2 heat exchangersper zone for solar heating and one heat exchanger forsupplementary heating by means of a fuel oil or gas boiler.

The high quality steel tank is lined with food standard qualityvitrified enamel, which protects it from corrosion and preserves allthe qualities of the domestic water.

The tank is also protected from corrosion by two magnesiumanodes which must be inspected every 2 years and replaced ifnecessary.The thermal exchanger welded into the tank is made of smoothpiping, the inside of which, which is in contact with the domesticwater, is enamelled.

The Dietrisol TRIO DT 250/3 tank is fully equipped with a specialsolar station, which includes a heating device for each zone,safety equipment, expansion chamber, pump, Diemasol B solarregulator, etc.

All components are checked for leaks and tested in the factory.The regulator, pump and directional valve are pre-wired.

All the fittings with the tank eliminate costly installation time.

The tank is strongly insulated with high strength rigid polyurethanefoam with no chlorofluorocarbons (CFC), 75 mm thick to minimiseheat loss.

The outside casing is made of painted steel sheeting.

The upper and lateral hoods are made of PS.

The insulating material can be easily detached from the tank. Apolyethylene film prevents the foam sticking to the tank. Thismeasure facilitates the recycling of materials.


5 Detailed drawing

1. Manual bleed degasser

2. Safety unit set at 6 bar - primary solar)

3. Pressure gauge - primary solar)

4. Blue thermometer - tank solar heat exchangers outlet

5. Red thermometer - tank solar heat exchangers inlet

6. Primary solar circuit pump

7. 2-position 3-way directional valve

8. Diemasol B regulator

9. Magnesium anodes

10. 8 l/6 bar expansion chamber, 2 bar pre-load

11. Automatic connection for expansion vessel

12. Primary solar circuit filling and draining device

6 Package list

(1) Available on request at extra cost.

Pack no.

DIETRISOL TRIO DT 250/3 EC 73Options (1):

Electrical resistance 3 kW - 230 V ~ /400 V3~ EG 88


7 Main dimensions

1. Domestic cold water inlet G1

2. Circulation G 1

3. Boiler heat exchanger outlet R 1

4. Thimble tube for boiler sensor Diameter: 13.2 mm

5. Boiler heat exchanger inlet R 1

6. Domestic hot water outlet G 3/4

7. Thermal exchanger inlet (Solar circuit)copper, ext. Ø 18

8. Thermal exchanger outlet Solar circuit)(Solar circuit) - copper, ext. Ø 18

9. Safety valve discharge pipe primary solar) - copper, ext. Ø 18

10. Emplacement for electrical resistance (Option)

11. Anode

G 1: 1" cylindrical thread - flat gasket sealR 1: 1" tapered thread for gasRp 1: Tappe 1"


8 Technical characteristics

(1) Swiss Directives(2) Domestic cold water temperature 10 °C (3) Domestic hot water temperature : 45 °C

Domestic hot water temperature: 40 °C average Domestic hot water storage temperature: 65 °CValues measured with a wall-mounted boiler

9 Installation

The Dietrisol TRIO DT 250/3 solar tank is designed to be connectedto an De Dietrich boiler.

9.1 Tank installation

Location

In order to allow the front cover to be opened fully tofacilitate access for maintenance work, a minimum spaceof 350 mm must be left free to the left of the tank.

Levelling

(1) Range of adjustment: approx. 20 mmLift the tank slightly with a lever to adjust the feet.

DIETRISOL TRIO DT 250/3Primary circuit

Secondary circuit (tank)Upper solar heat

exchangerLower solar heat

exchangerBoiler heat exchanger

Maximum operating temperature °C 120 120 90 90Maximum operating pressure bar 10 10 10 10Maximum operating pressure in accordance with W/TPW (1) bar - - - 6

Water capacity litres 2.2 3.2 4.1 250Surface areaHeat exchanger m2 0.45 0.66 0.62 -

Primary flow rate m3/h 0.5 0.5 2 -Water resistance mbar - - 33 -Heat exchanger inlet temperature °C 50.0 - 70.0 50.0 - 70.0 80 -Power exchanged (2) (3) kW 1.4 - 5.6 2.4 - 9 21.5 -

Continuous output ∆T = 35 K (2) (3) l/h - - 530 -

Flow rate for 10 minutes where ∆T = 30 K (on make-up volume)

l/10 mm - - 170 -

Standby consumption ∆T = 45 K kWh/24h 1.67


9.2 Connection diagram

Example of a wall-mounted condensing gas boiler

See next page.


Key

3. 3-bar safety valve4. Pressure gauge7. Automatic bleed valve8. Manual bleed valve9. Isolation valve10. 3-way mixing valve11. Boiler pump11a. Pump with automatic electronic control for direct heating circuit

(must be connected to AUX on the boiler panel)11b. Pump for heating circuit with mixing valve (must be connected to

on the valve option board - box FM 48)13. Flush valve16. Expansion chamber17. Drain cock18. Heating circuit filling valve21. Outside temperature sensor23. Mixing valve outlet temperature sensor24. DHW tank heat exchanger primary inlet25. DHW tank heat exchanger primary outlet26. Dhw pump27. Anti-thermosiphon valve27a. Non-return valve28. Domestic cold water inlet29. Pressure reducer - If the supply pressure exceeds 80% of the valve

or safety unit setting (e.g. 5.5 bars for a safety unit set at 7 bars), a pressure reducer must be installed upstream of the DHW tank

30. France: Safety unit

a. Cold water inlet with an integrated non-return valveb. Connection to the DHW tank cold water inletc. Stop cockd. safety unit 7 bare. Drain opening

Germany: 10-bar safety valve32. Domestic hot water loop pump (optional)33. Tank temperature sensor35. Decoupling canister44. 65 °C safety thermostat with manual reset for heated floor (France:

DTU 65.8, NF P52-303-1)46. 2-position 3-way directional valve50. Disconnector51. Thermostatic valve56. Domestic hot water circulation return loop57. Domestic hot water outlet61. Thermometer64. Circuit A: direct heating circuit (example: radiators)65. Circuit B: heating circuit with mixing valve; heating circuit which may

be at low temperature (heated floor or radiators)84. Stop valve with lockable nonreturn valve85. Primary solar circuit pump86. Automatic connection for expansion vessel87. 6-bar calibrated and sealed safety valve (primary solar)88. 8-litre expansion chamber, supplied (primary solar) (2bar pre-load)89. Heat transfer fluid container109. Domestic hot water thermostatic mixing valve112a. Solar sensor probe112b. Solar tank domestic hot water sensor

114. Primary solar circuit filling and draining device ( propylene glycol)

115. Thermostatic distribution valve for each zone126. Solar regulator129. Duo-Tube130. Manual bleed degasser - (Airstop)131. Flat or tubular solar panel133. Interactive remote control


Primary solar water circuit connections

Important

When switched off, the temperature in the sensors canexceed 150 °C.

To protect against frost a water-propylene glycol mixture isused as heat transfer fluid.

The pressure in the solar circuit can rise to 4 bar maximum.

Due to the high temperatures, the use of propylene glycoland the pressure in the primary solar circuit, the primarysolar water connections must be made with the utmostcare, in particular with regard to insulation andwatertightness. The technical recommendations in theseinstructions MUST be observed.

Recommended flow rate

Dietrisol PRO flat collectors:: 12-40 l/m2hDietrisol POWER tubular solar panels: 12-50 l/m2h

Safety valve discharge pipe

- max. pipe length 2 m- blanking off impossible- DN 20- fitted with constant slope towards the drain

Protection of the environment

Place a container of sufficient volume under the drain pipeand the valve discharge pipe.

1 Outlet and return pipes

Dimensions

To be able to have pipework without degassers or bleed valves athigh points, the solar fluid flow rate must not fall below 0.4 m/s duringthe degassing procedure. Observe the following parameters for thisto be possible:

The pipes must be as short as possible and always slopingdownwards between the collectors and the connection to the solartank.If the installation criteria for good degassing cannot be met, a manualbleed degasser must always be installed at the high point(s) ofthe solar equipment.

IdealIncorrect (high point with no air vent)Correct (high point with air vent)Location of manual bleed valve degasser

Connecting

Use of a hacksaw is prohibited.

Pipe connections by compression unions

Hard soldering: Hard soldering: hard soldering filler metal withoutflux in accordance with DIN EN 1044, e.g. L-Ag2P or L-CuP6.

Soft brazing is authorised only up to the permanenttemperature of 110 °C.

The use of flux promotes corrosion conditions in systemsoperating with propylene glycol as heat transfer fluid. In allcases the inside of the pipes must be flushed.

Pipe unions: can only be used if they are resistant to glycol,pressure (4 bar) depending on version) and temperature (180 °C,-30 °C) (manufacturer's data).

Sealing material: hemp or Teflon

Number of panels Copper pipeø ext. (mm)

Max. length outlet(outlet + return)

Dietrisol PRO flat collectors:2 15 or 18 303 15 30

Dietrisol POWER tubular solar panels3 in series 15 or 18 304 in series 15 or 18 306 in series 15 or 18 30


2 Solar Panel Connection

Dietrisol PRO flat collectors:

The outlet and the return can be connected directly to therisers by using the connection kit. The outlet and return connectionsare on the same side of the solar collector. Be careful not to reversethe outlet and the return.

If the outlet and the return are reversed, the system cannotoperate correctly.

The sensor must always be installed on the outlet end.For the installation and water connections to the sensors, referto the instructions supplied with them.

Dietrisol POWER tubular solar panels

Fit the outlet connection (with immersed sensor socket andmanual air vent) to the top right-hand end of the series of collectors.Fit the return connection to the other end.If possible, position the most direct ascending pipe on the outlet side.Bring the return pipe towards the outlet from below the collector.The Dietrisol POWER collector does not have a built-in return pipeunlike the Dietriso PRO flat collector.

For the installation and water connections to the sensors, referto the instructions supplied with them.

Special case

If for reasons connected with the design of the building theconnecting pipes must rise from their mounting point on the solarcollector to the point where they pass under the tiles, then it isnecessary to insert a degassing pot with a manual bleed valveunder the roof at the highest point on the water circuit.

Pipe insulation

Prefabricated for "Duo-Tube" (Option).

If different copper pipes are used, theinsulation must be:

- Resistant to constant temperatures up to150 °C in the collector zone and the hotoutlet and also down to -30 °C

- Resistant to UV light and weather in the roofarea.

- Insulation preferably waterproof andcontinuous

- with a thickness equal to the tube diameterand with a K coefficient of 0.04 W/mK.

50 % reduction of the insulation ispermitted when passing through the roofand walls.

Recommended materials for temperatures up to 150 °C

- Duo-Tube De Dietrich- Armaflex HT- mineral wool- glass fibre

To protect the insulation against mechanical damage, birdpecking and UV light, add extra protection for the heatinsulation sleeves in the roof area by using an aluminiumsheet sleeve or aluminium adhesive tape. This additionalprotection must be sealed with silicone.


Hydraulic connection of the water circuit for domestic use

These domestic hot water tanks can operate at a maximum operatingpressure of 10 bars. As a general rule, the tanks operate at 7 bars.

Specific precautions

Flushing the system Before making the connection, rinse the domestic water inletpipes to prevent the introduction of metal or other particles into theDHW tank. The foreign matter would also risk damaging certaincomponents such as the safety unit, valves, tap fittings, etc

Provision for Switzerland

Connections must be made in accordance with the instructionsof the Société Suisse de l'Industrie du Gaz et des Eaux. Anylocal instructions from water distribution plants must also berespected.

Domestic hot water connection

Domestic water mixertapAll Dietrisol TRIO hotwater tanks are fittedwith a domestic watermixer tap on thehot water outlet pipe ,with a setting range of35-60 °C.

The thermostatic mixer tap does not require any particularmaintenance.

Protection against corrosion on the domestic hot water outlet

You are strongly advised to install a dielectric insulationconnection between the thermostatic mixer tap (mixed water outlet) and the connection pipe to preventproblems of corrosion. The same applies to the brass T-piece at the cold water inlet.

28. Domestic cold water inlet57. Domestic hot water outlet


Connecting the domestic cold water

The components used for the connection to the cold water supplymust comply with the prevailing standards and regulations in thecountry concerned. Fit a non-return valve to the domestic cold watercircuit.

Safety valve

In compliance with the safety rules, fit a sealed safety valveto the tank's domestic cold water inlet.

Calibration of the safety valve : 10 bar.For France, we recommend hydraulic safety units fitted with amembrane with the NF marking.- Integrate the safety valve in the cold water circuit.- Install the safety valve close to the calorifier in a place which is

easy to access.Dimensions

The safety unit and its connection to the DHW tank must be of at leastthe same diameter as the cold water supply pipe in the tank'sdomestic circuit.No isolating devices should be located between the safety valve orunit and the tank.The safety unit outlet pipe must have a uniform and sufficient gradientand its diameter must be at least equal to that of the outlet openingin the safety unit (to prevent the flow of water being hindered if thepressure is too high).The outlet pipe in the valve or safety unit must not be blocked.

France

The level of the safety unit must be lower than that of the cold waterinlet to enable draining. Otherwise, fit a drainage pipe to the lowestpoint of the tank.

Germany

Define the dimensions of the safety valve in accordance with the DIN1988 standard :

Fit the safety valve above the calorifier to obviate having to drain thetank during servicing.Install the drainage valve at the lowest point on the calorifier.

Pressure reducer

If the supply pressure exceeds 80% of the valve or safety unit setting(e.g. 5.5 bars for a safety unit set at 7 bars), a pressure reducer mustbe installed upstream of the DHW tank. Install the pressure reducerdownstream of the water meter in such a way as to ensure the samepressure in all of the pipes in the installation.

Bleed circuit

During the heating process, water can flow through the bleed circuitto guarantee the safety of the installation. Do not block!

Domestic hot water circulation loop

To guarantee the availability of hot water as soon as the taps areturned on, a circulation loop between the draw-off points and therecirculation pipes in the DHW tank can be installed. See diagram .

Measures to take to prevent hot water blow back

Fit a non-return valve to the domestic cold water circuit. If using aclosed calorifier, the non-return valve must be easily accessible

Capacitylitres

Dimension of the valveMin. dimension of the inlet

connection

Heating outputkWmax

< 200 R or Rp 1/2 75

200 1000 R or Rp 3/4 150


Hydraulic connections to the boiler

Important notes about connecting the heating circuit and the domestic hot water tank heat exchanger

Installation must be carried out in accordance with the prevailingregulations, the codes of practice and the recommendations in theseinstructions. For a proper operating of the boiler, follow carefully the instructions.Refer to the technical and assembly instructions delivered with theboiler.Before making the heating circuit and domestic hot water tank heatexchanger water connections, it is imperative to flush the circuits toremove any particles which might damage certain components(safety valves, pumps, valves, etc.).

There must be no total or partial closing mechanismbetween the boiler and the safety valves (France: DTU -65.11, § 4.22 - NF P 52-203).

The heating system must be designed and constructed insuch a way as to prevent the return of water from theheating circuit or the substances in it to the drinking watermains. A disconnector must be installed for filling theheating circuit in accordance with the regulations in force.

Be careful to shut off the water in the heat exchanger circuit by meansof the stop valves in order to facilitate boiler or tank maintenanceoperations.

Electrical connection

1. Unscrew the 2 lateral holding screws.

2. Open the front cover.

3. Pass the cable through the opening provided (A).

4. Connect the cable to the mains.

5. Close the front cover.

6. Tighten the 2 holding screws.


Commissionning

1 Secondary circuit (domestic water)

1.1 Filling with water

Carefully degas the DHW tank and the distribution network in orderto eliminate noises and hammering caused by trapped air moving inthe pipes during draw-off. To do so:

Completely fill the DHW tank via the cold water inlet pipe,leaving the hot water valve open. Only reclose this valve whenthe flow is regular and there are no noises or hammering in thepipes.

Then successively degas all the hot water pipes by opening thecorresponding valves.

These operations also make it possible to rinse and clean thehot water pipes located at the DHW tank outlet.

1.2 Adjustment

Set the domestic hot water thermostatic mixing valve to the requiredtemperature to avoid scalding when running domestic hot water.

During the heating process, a certain amount of water mayflow through the valve or safety unit; this is caused bywater expansion. This phenomenon is completely normaland must in no event be hindered.

2 Primary boiler circuit

Refer to the technical and assembly instructions delivered withthe boiler.

If the boiler's domestic hot water circuit is set higher than 50 °C, theSZ parameter (zone reversal temperature) of the Diemasol Bregulator must be changed to 5 K above this domestic hot watercircuit temperature setting.

See the instructions supplied with the control unit and anyremote control unit used.

When the boiler and the heating system have been filled, check thatthe domestic hot water tank boiler heat exchanger is properly bled.


3 Primary solar circuit

Recommendation: With small systems, use DE DIETRICHpropylene glycol containers to recover fluid under the safety valvedischarge pipe.

3.1 Flushing the primary solar circuit

check the connection to the series of collectors and thecollector sensor connection.

Flushing procedure

4. Pressure gauge9. Isolation valve46. 2-position 3-way directional valve61. Thermometer84. Stop valve with lockable nonreturn valve85. Primary solar circuit pump86. Automatic connection for expansion vessel87. 6-bar calibrated and sealed safety valve (primary solar)88. 8-litre expansion chamber, supplied (primary solar) (2bar pre-load)89. Heat transfer fluid container114. Primary solar circuit filling and draining device - propylene glycol126. Solar regulator130. Manual bleed degasser

Flushing

When commissioning, the solar installation must be flushedmeticulously to remove grit, deposits and any flux residue. Flushing time: Minimum 10 minutesFlushing fluid: Heat Transporting Fluid1. Open the spherical liner valves.

2. Set the 3-way valve to manual mode MM2.

(refer to the Diemasol B regulator instructions) so that theupper heat exchanger is also flushed and filled.

if the tank is not yet switched on, change the position of thevalve manually.

3. Close the drain taps when the system is full.

4. At the end of the operation, do not forget to change back toautomatic mode MM4.

5. Close the spherical liner valves again.

The tank is fitted with a filling and draining device (No. 114)which can be used to flush the system.

Important note about flushing and filling the system

The solar installation has been designed in such as waythat total draining of the collectors is impossible.Antifreeze is included in the mixture. Therefore it isimperative to flush and fill the solar installation with heattransfer fluid.

Dietrisol POWER tubular solar panels:For the rinsing, to short-circuit the end of the rising main(upstream of the solar collector). To refer to the note of thesolar collector.

Not to carry out rinsing in the event of direct solar radiation(vapor formation) or if there is risk of freezing (risk ofdeteriorations).


3.2 Leak test

The system must be tested for leaks with the heat transfer fluid whenflushing is finished.- Testing pressure: 2.5 bar- Test time: minimum 1 hour

In the absence of air in the solar circuit, the test pressure must notdecrease.When the test time has elapsed, allow the pressure in the system torise until it triggers the safety valve (operating check).

Propylene glycol leaks very easily. The pressure tests do notguarantee that there will be no leaks when the system is filledwith propylene glycol under pressure. For this reason, werecommend an additional leak test when the system is filledand working.

Do not carry out a leak test when the installation is exposed todirect solar radiation (risk of vaporisation) or when it isfreezing (risk of damage).

After the leak test, adjust the solar circuit pressure to 2 bar bar.

4 Filling the solar circuit with heat transfer fluid

Before the filling of the installation, to check the preload ofthe expansion vessel according to the static height(Preload = static Height/10 + 0.3 bar).

check the connection to the series of collectors and thecollector sensor connection.

Heat Transporting Fluid

Dietrisol PRO flat collectors::Water/propylene glycol mixture or ready-to-use LS mixtureMixture ratio: 57/43

- 57 parts water- 43 parts propylene glycol

The freezing point of this mixture is -28 °C. Down to -33 °C, it formsslush that will not burst the pipes.Dietrisol POWER tubular solar panels:Tyfocor HTL ready-to-use mixture (only).

Filling pressure

1.5 max. 2 bar (or0.5 bar above the static height).The filling pressure must be more than 0.5 bar above the expansionchamber pre-load pressure. The ready-to-use mixture must bepumped directly from the container.

Do not use a manual filling pump.

Prolonged operation of the pump (85) will have caused preliminarydegassing of the solar circuit.

Filling

Follow the same procedure as for rinsing.To put the installation under pressure, to close the blowoff valve onthe return.

Not to forget to open the valve B at the end of the filling

Since propylene glycol leaks much more easily than water,check all connections and gaskets for leaks after a fewhours of operation at working pressure.

Filling procedure

4. Pressure gauge9. Isolation valve46. 2-position 3-way directional valve61. Thermometer84. Stop valve with lockable nonreturn valve85. Primary solar circuit pump86. Automatic connection for expansion vessel87. 6-bar calibrated and sealed safety valve (primary solar)88. 8-litre expansion chamber, supplied (primary solar) (2bar pre-load)89. Heat transfer fluid container114. Primary solar circuit filling and draining device

propylene glycol126. Solar regulator130. Manual bleed degasser - (Airstop)


5 Bleed

- Switch on the circulating pump: air bubbles move towards thebleed points (Airstop system and manual air vent).

- Stop the circulating pump.- Open all the bleed valves to expel the air then close them again.

Depending on the fluid temperature and system pressure,when the degassing screw is opened, the fluid may spurtout with some force. If the water temperature is high, becareful: RISK OF SCALDING.

Repeat the operation several times; alternate operation of the pumpassists degassing.

Bleeding must be continued until pressure variations canno longer be detected at the pressure gauge, or whenstarting or stopping the pump. If loss of pressurecontinues, add heat transfer fluid in accordance with thefilling instructions.

After a few days of operation at high working temperature,bleeding should be repeated. This bleeding is necessarybecause small air bubbles form in the propylene glycol athigh working temperatures.

For systems installed in the winter, it is advisable to bleedthem again in the summer.

6 Antithermosiphon valve

The antithermosiphon valve is included in the spherical liner valve onthe red thermometer and it is characterized by an opening pressureof 200 mm water column.1. For filling, degassing and rinsing the installation, the two

spherical liner valves must be positioned at 45 ° (see illustration).The spherical liner in the valve lifts the antithermosiphon valve.

2. When the installation is in use, the spherical liner valves must be'returned to the vertical position.

The antithermosiphon valve operates when the stop cock is in theopen position.

45°

8980

N20

545°


7 Final checks before commissioning

1. The system is filled with De Dietrich heat transfer fluid without anyair bubbles. Inspect all the connections in the system forleaks..

2. Leave the fluid circulating round the system for some time andcheck again for leaks. (regulator in manual mode).

3. Open the bleed valve of the manual bleed degasser (bleedagain).

4. Bring the pressure in the system up to the 2 bar working pressureby topping up if necessary with heat transfer fluid.

5. After several hours of operation, the system should be bled again(via the manual bleed degasser). After bleeding, check thesystem pressure and add more fluid if necessary.

6. Set the regulator to automatic mode.

7. Check the anti-thermosiphon valves on the outlet andthe return.Close them if necessary.

8 Summer shutdown

The system is designed in such a way that no special precautions arenecessary during long periods of absence in summer.

Do not switch off the regulator, or drain off the heattransfer fluid.

9 Regulate technical to respect

Installation must be carried out in accordance with the prevailingregulations, the codes of practice and the recommendations in theseinstructions.

Normalizes NF EN 12828, March 2004

Appendix D: Indications for the dimensioning of the expansionvessel with diaphragm.

In the case of the Dietrisol TRIO DT 250/3 water tank, theexpansion vessel is delivered with the product.

Example for a mixture with glycol 40 %

Expansion rate of water in %

Example for a 30 liters installation:

Rapid determination of an expansion vessel 3 bar

♦ For example: Static height 15 m / 10 = 1.5 bar + 0.3 bar = 1.8 bar

Total expansion volume

♦ Previous example: 1.70 + 0.3 = 2 litresOutput of the expansion vessel

♦ Previous example with 3 bar valve: (2.7 + 1) - (1.8 + 1) / (2.7 + 1) = 0.24 or 24 %

Minimum volume of the expansion vessel

♦ Previous example: 2 / 0.24 = 8.33 litresSubparagraph 4.6.2.4: The presence of a boltable isolating valvecan be considered for the needs of maintenance:

- Replacement of the expansion vessel- Preload the control (control and the filling being done with air as

for a tire).In the same conditions one obtains 3.45 l with an expansionvessel of 6 bar.

Temp.°C

Water only

Anti-freeze10 %

Anti-freeze20 %

Anti-freeze30 %

Anti-freeze40 %

Anti-freeze50 %

40 0.79 1.11 1.43 1.75 2.07 2.3950 1.21 1.53 1.85 2.17 2.49 2.8160 1.71 2.03 2.35 2.67 2.99 3.3170 2.28 2.60 2.92 3.24 3.56 3.8880 2.90 3.22 3.54 3.86 4.18 4.590 3.59 3.91 4.23 4.55 4.87 5.19100 4.35 4.67 4.99 5.31 5.63 5.95

Dilated volume (A)30 x 5.63 % = 1.70 litres

Preload = Static height / 10 + 0.3 bar

Dilated volume (A) + Reserve (0.5 to 1 % of the installation volume)

(Final pressure + 1) - (Preload + 1) / (Final pressure + 1)Final pressure = Maximum valve pressure x 0.9

Total expansion volume / Efficiency


10 Maintenance

It is imperative to drain the solar circuit before any work iscarried out.

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

10.1 Tank

Magnesium anodes

The magnesium anodes must be checked at least every 2, years.After the first check, determine the frequency of future checks on thebasis of anode wear.The anodes can be checked by two methods:

Inspection: the anode must be replaced if its diameter is lessthan 15 mm (original diameter = 33 mm).

Function test:

- disconnect the earth wire from the anode.- measure the strength of the current between the tank and the

anode. if the current is less than 0.1 mA, the anode must bereplaced.

If the anodes must be replaced, proceed as described below.Valve or safety unit

The valve or safety unit must be operated at least once a month inorder to ensure that it is operating correctly and to be forewarned ofany overpressure which would damage the DHW tank.

Descaling

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

Casing

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

Procedures to follow for descaling, or checking or replacing the magnesium anodes

Prepare a new sealing gasket

1. Cut off the cold water supply and drain the DHW tank. To drainthe safety unit, set the unit to "Drain" and open a hot water tap (ora drain valve) to let air enter.

2. Disconnect the expansion vessel from the rest of the circuit byunscrewing the automatic connection nut (non-return valve onboth sides of the connection).

Nut to be unscrewed

3. Remove the expansion vessel

4. Take out the polystyrene stopper.

5. Remove the inspection hatch (13 spanner).

6. Check the anodes and replace them if necessary.

7. Check the state of scaling on the thermal exchangers anddescale if necessary.

8. Re-assemble the parts and replace the leak tight seal on theflange.

9. After assembly and filling, check the tightness of the seal on thetank.

10. Switch on.

The flange mounting bolts must not be excessively tight: 6Nm +1/-0. Use a dynamometric spanner. Comments: Approximately 6 Nm is obtained by holding thebox spanner by the small lever.


Spare parts - DIETRISOL TRIO DT 250/3

07/11/06 - 300004371-002-Eto order a spare part, it is imperative to give the code number shown on the list, against the number of the part required.

Tank

DE DIETRICH THERMIQUE S.A.S. - Spare parts centre4, rue d’Oberbronn - F-67110 REICHSHOFFEN - Tél. : (+33) 03 88 80 26 50 - Fax : (+33) 03 88 80 26 98

cpr dedietrichthermique.com

Water unit


Rep Reference Description

Tank

1 97525657 Top cover

2 300002962 Front cover

3 95365392 Diemasol BI regulator

4 300002965 Valve/heat exchanger connection pipe

5 300002966 Circuit/drain connection pipe/Expansion vessel

6 300005732 Connecting pipe

7 97549946 Tube connection arrival/solar collector

8 97549947 Tube connection retour/solar collector

9 97549945 Tube connection valve of safety

10 89805506 Flat gasket pack

11 97930862 Resistor 6.3 A - 250 V

12 89808018 Pipe bracket

13 300002970 Sensor drill plate stopper

14 89525501 Complete top mounting

15 89705511 Seal kit 7 mm + retainer ring

16 89658526 Complete lateral trap ø 82

17 95013133 Lip seal ø 82 mm

18 200002620 Complete lateral trap ø 82

19 89588912 Complete Anode

20 95014035 Gasket 8.5X35X2

21 94974525 Nylon brace

22 97860646 Adjustable foot M10X35

23 8980-5507 Terminal block

24 300002967 Expansion chamber 8 l, 6 bar

25 100003967 Domestic hot water thermostatic mixing valve

26 300005731 Union reducer F1" - F3/4"

27 8666-5771 Valve AR OV15/DN15

28 95365613 Contact spring for pocket

29 97930800 Solar sensor probe FKP6 - lg 2.5 m

30 97930801 Solar calorifier sensor FRP6

31 94964104 Automatic connection for vessel 3/4"

32 300002977 Reduction elbow 3/4"-1/2" brass

33 200002617 Complete vessel attachment

34 89604901 Earth wire

35 94914407 Tee 1"

36 300005106 Fuse 4A (x10) solar regulator

37 300005955 Pipe 1/2" - lg 230

Water unit

40 300004141 Bleeder valve stopper 3/8"

41 300004142 Degasser 3/4"

42 300003211 Male elbow 3/4" - 3/4" nut

43 97930837 Safety valve 6 bar

44 300003214 Nipple 3/4"

45 300006005 Power supply cables, pump and valve

46 300004143 Solar station bracket

47 94950132 Nipple 3/4"

48 300003218 Manometer connection parts

49 97930846 3/4" extension

50 300004144 Valve connection body

51 97930836 Pressure gauge

52 97930834 Outlet tap with 3/4" valve

53 97930825 Return valve 3/4"

54 300003212 EPDM seal 1"

55 300004145 3/4" extension

56 97930833 Circulator

57 300004147 3/4" extension

58 97930847 Motorised 3-way valve

59 300002102 3-way valve motor

60 300004146 Drain cock

61 97930851 Black thermometer handle

62 97930852 Red handle trim

63 97930853 Blue handle trim

64 300000914 Red thermometer

65 300000915 Blue thermometer

66 300003217 Gasket 1"

Rep Reference Description


Installation report

Description of the installation

Solar outlet and return checks

Regulator function check

Place of installation......................................................................................

Owne ...........................................................................................................

Street ...........................................................................................................

Town/Postcode ............................................................................................

Tel. ................................................. Fax.......................................................

Mobile ..........................................................................................................

E-mail...........................................................................................................

Company ....................................................................................................

Street...........................................................................................................

Town/Postcode............................................................................................

Tel.................................................. Fax.......................................................

Mobile..........................................................................................................

E-mail ..........................................................................................................

Installer........................................................................................................

Solar installation for: Hot water preparation Hot water preparation & hot water booster

Swimming pool heating

Components: Dietrisol PRO flat collectors: Dietrisol POWER tubular solar panels Dietrisol ECO 2 flat collectors:Quantity: ..................

Type of installation: On roof Roof-integral Installation On flat roofPipes: Duo-Tube Cu 15 Cu 18

Other pipes ø .........................................mm Length ........................mInsulation: ...................mm Type/brand ................................................................

Tank: B 150, B 200 B 300/2, B 400/2 DC 750, DC 1000Dietrisol TRIO Dietrisol QUADRO Dietrisol QUADRODENSDietrisol LIGHT S 300-2P Dietrisol LIGHT S 400-6P Other brand

.........................................................Solar station:: Dietrisol DKS 6-8 Dietrisol DKS 9-20 Dietrisol DKP 6-8

Dietrisol TRIO Dietrisol DUS 1/750-10 Dietrisol DUS 2/750-20Other brand..................................................................................................

Solar fluid: LS HTL l (volume): ................System pressure: ................................barPreload vessel ................................bar

For vertical collectors side-by-side or horizontal collectors one on top of the other:- Connect the return (cold)- Connect the outlet (hot) to the coil- Mount the sensor on the side where the hot coil leaves the collector (outlet)

For horizontal solar panels:- checks in accordance with the assembly diagram

Return OK

Outlet OK

Sensor position OK

3-minute bleed cycle OKContinuation in "matched flow" mode OK

Collector temperature TC = ...................... °C Adjustment parameter CX = ....................... °CDHW sensor temperature TS = ...................... °C Adjustment parameter tu = ....................... min.Amount of heat AH = ...................... KW Adjustment parameter PN = ....................... %Adjustment parameter DT = ...................... K Adjustment parameter FX = ....................... l/minAdjustment parameter SZ = ...................... °C Adjustment parameter UU = .......................Adjustment parameter SX = ...................... °C

The SZ parameter MUST be 5 K higher than the boostertemperature setting(s).

DHW booster temperature settings:- boiler circuit ....................... °C

- Electric heating resistance ....................... °C


Inspection of the installation

Readjustments.......................................................................................................................................................................................................................................................

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Comments

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

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

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

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

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

Place: ............................................................................................................. Date: ................................................................................................

Owner's signature Installer's signature

Components on roof:All mounting bolts tight yesAll connections checked and leak-free yes

Solar station::Outlet and return connections correct yesOutlet and return thermometers present and checked yes

Tank:Cold water safety kit installed yesPressure reducer set at ................. bar yesThermostatic mixing valve with anti-thermosiphon circuit connected to the solar tank yesTank insulation checked yesAll connections installed yes

Expansion chamber:Pressure of preload of the controlled expansion vessel yes

Assembly instructions (solar collector, tank, complete station, regulator) handed to the owner yesSolar installation operation (regulator) explained to the owner yes


Maintenance form

Maintenance N°: .........................................

Description of the installation

Checks

Owne ...........................................................................................................

Street ...........................................................................................................

Town/Postcode ............................................................................................

Tel. ................................................. Fax.......................................................

Mobile ..........................................................................................................

E-mail...........................................................................................................

Company ....................................................................................................

Street...........................................................................................................

Town/Postcode............................................................................................

Tel.................................................. Fax.......................................................

Mobile..........................................................................................................

E-mail ..........................................................................................................

Installer........................................................................................................

Solar installation for: Hot water preparation Hot water preparation & hot water booster

Swimming pool heating

Components: Dietrisol PRO 2.3 flat collectors: Dietrisol PRO 2.5 flat collectors: Dietrisol ECO 2 flat collectors:

Dietrisol POWER tubular solar panels Area .................................m2

DHW tank: ................................................... Solar station:: . ..............................................................

System pressure checked: .......................... bar pH value ......................

Preload vessel .......................... bar

Antifreeze protection checked .......................... ° C

Sealing: Inspection:

Collector OK OK

Pipes OK OK

Solar station: OK OK

DHW tank OK OK

Regulation Checking the operation OK

Collector temperature TC: ..................... ° C

DHW sensor temperature TS: ..................... ° C

Temperature Te: ..................... ° C

Amount of heat AH: ..................... kW

Enamelled tanks: Sacrificial anode checked condition satisfactory must be replaced


Installation controlled in integrality

Installation in perfect conditionInstallation fully checked

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

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

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

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

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

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Place: ............................................................................................................. Date: ................................................................................................

Owner's signature Installer's signature


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.

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.

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.

Switzerland

The application of the warranty is subject to the terms and

conditions of sale, delivery and warranty of the company

marketing our products.

Other countries

The above provisions do not restrict the benefit of the legal laws

regarding hidden defects applicable in the buyer's country.


Warranty certificate

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

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

Information on the appliance (to be found on the rating plate):Model: ...............................................................................................Serial number:...................................................................................Retailer's stamp:




DE DIETRICH THERMIQUE S.A.S.www.dedietrich.com

DE DIETRICH HEIZTECHNIKwww.dedietrich.com

VAN MARCKEwww.vanmarcke.be

VESCAL S.A.www.chauffer.ch / www.heizen.ch

DE DIETRICH THERMIQUE

6

DE

BE

CH

NEUBERG S.A.www.dedietrich.com

LU

FR

DE DIETRICHwww.dedietrich.com

DE DIETRICHwww.dedietrich.com

RU

DE DIETRICH HEIZTECHNIKwww.dedietrich.com

AT

CN

Direction des Ventes France57, rue de la Gare

F- 67580 MERTZWILLER +33 (0)3 88 80 27 00+33 (0)3 88 80 27 99

Rheiner Strasse 151D- 48282 EMSDETTEN

+49 (0)25 72 / 23-5+49 (0)25 72 / 23-102

[email protected]

Weggevoerdenlaan 5 B- 8500 KORTRIJK+32 (0)56/23 75 11

Z.I de la Veyre, St-Légier1800 VEVEY 1

+41 (0)21 943 02 22+41 (0)21 943 02 33

39 rue Jacques StasL- 2010 LUXEMBOURG

+352 (0)2 401 401

8 Gilyarovskogo Str. 7R- 129090 MOSCOW

+7 495.974.16.03+7 [email protected]

Room 512, Tower A, Kelun Building12A Guanghua Rd, Chaoyang District

C-100020 BEIJING+86 (0)106.581.4017+86 (0)106.581.4018+86 (0)106.581.7056+86 (0)106.581.4019

[email protected]

Am Concorde Park 1 - B 4 / 28 A-2320 SCHWECHAT / WIEN

+43 (0)1 / 706 40 60-0+43 (0)1 / 706 40 60-99

[email protected]

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