DeDietrich BMR 80 User manual

BMR 80
Domestic hot water calorifier for wall-hung boilers English
29/05/06
Installation
instructions
Instructions for use
Technical
instructions

2BMR 80 29/05/06 - 300008885-001-A
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2 Important recommendations. . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1 Main dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2 Technical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3 Package list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1 Implementation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2 Assembling the boiler/DHW calorifier unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3 Connecting the calorifier to the primary circuit (Exchanger). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4 Connecting the tank to the domestic water circuit (secondary circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5 Filling the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Commissionning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
1 Magnesium anode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
2 Valve or safety unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3 Descaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4 Cladding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Maintenance form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Symbols used
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.
ZReference Refer to another manual or other pages in this instruction manual.

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29/05/06 -300008885-001-A BMR 80
Introduction
BMR 80 domestic hot water calorifiers are connected to the side of
wall-hung boilers. For a proper operating of the boiler, follow carefully the instructions.
1 Compliance
Compliance of design and manufacture
This product complies with the requirements of European Directive
97 / 23 / EC, Article 3, Paragraph 3, on pressure equipment.
Electrical compliance / Marking 1
ThisproductcompliestotherequirementstotheEuropeanDirectives
and following standards:
• 73/23/EEC Low VoltageDirective
Reference Standard : EN 60.335.1.
• 89/336/EEC Electromagnetic Compatibility Directive
Reference Standards : EN 50.081.1 / EN 50.082.1 / EN 55.014.
2 Important recommendations
Positioning the appliance:
- in a frost-free room
- ascloseaspossibleto draw-offpointsin order to minimiseenergy
losses through the pipes
Insulating the pipes.
Heating water and domestic water must not come into
contact with each other. Domestic water must not circulate
via the exchanger.
Service the appliance regularly to ensure that it operates correctly.
Any operation on the installation must be performed by a
qualified technician respecting professional regulations
and 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 the
guarantee is to remain valid.
Description
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.
Thetankisprotectedagainstcorrosionbyamagnesiumanodewhich
should be checked every 2 years and replaced if need be.
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.
The appliance is insulated using CFC-free polyurethane foam.
The outside casing is made of painted steel sheeting.
The insulating material can be easily detached from the tank. A
polyethylene film prevents the foam sticking to the tank. This
measure facilitates the recycling of materials.

4BMR 80 29/05/06 - 300008885-001-A
1 Main dimensions
R: Conical thread
G: Exterior cylinder thread, sealed by flat joint
AEchanger bleed valve
BSensor thimble tube
HAnode
10 Domestic hot water outlet R 3/4
11 Domestic cold water inlet R 3/4
12 Heat exchanger inlet G 3/4
13 Heat exchanger outlet G 3/4

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29/05/06 -300008885-001-A BMR 80
2 Technical characteristics
3 Package list
BMR 80
Primary circuit (heating water)
Maximum operating temperature °C 95
Maximum operating pressure bar 10
Maximum operating pressure in accordance with W/TPW (3) bar 6
Coil water capacity l3
Coil exchange surface m20.75
Secondary circuit (domestic water)
Maximum operating temperature °C 95
Maximum operating pressure bar 10
Maximum operating pressure in accordance with W/TPW (3) bar 6
Water capacity l80
Performance
Power exchanged (1) kW 22.6
Continuous flow (1) l/h 555
Specific flow at ∆T 30 K (2) l/min 16.5
Draw-off capacity l/10 mm 165
Weigh kg 49
(1) Domestic cold water inlet: 10 °C - Domestic hot water outlet: 45 °C - Primary circuit
(heating water): 80 °C
(2) Domestic cold water inlet: 10 °C - Domestic hot water outlet: 45 °C - Primary circuit
(heating water): 80 °C - DHW sensor temperature: 60 °C
(3) Swiss Directives
Description BMR 80
- Tank EE 53
- Linking kit HG 29
To be ordered separately
- NTC sensor AD 226

6BMR 80 29/05/06 - 300008885-001-A
Installation
BMR 80 domestic hot water calorifiers are connected to the side of
wall-hung boilers.
1 Implementation
The DHW calorifier can be placed to the left or right of the boiler.
The appliance must be fixed to a solid wall, capable of
supporting its weight when full of water.
Assembly to the left
Assembly to the right

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29/05/06 -300008885-001-A BMR 80
2 Assembling the boiler/DHW calorifier unit
2.1 Fitting the boiler mounting frame with BMR 80 calorifier
ZSee: Boiler installation instructions.
2.2 Fitting the calorifier mounting rail

8BMR 80 29/05/06 - 300008885-001-A
2.3 Hanging the boiler
2.4 Hanging the tank

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29/05/06 -300008885-001-A BMR 80
3 Connecting the calorifier to the primary circuit (Exchanger)
Hydraulicconnectionbetweenboilerandcalorifierexchangerisdone
using connection kit HG 29.
4 Connecting the tank to the domestic water circuit (secondary circuit)
Whenmakingtheconnections,itis imperativethatthe standardsand
corresponding local directives are respected. Thesedomestichotwatertankscanoperateatamaximumoperating pressure of 10 bars. As a general rule, the tanks operate at 7 bars.
4.1 Specific precautions
Before making the connection, rinse the domestic water inlet
pipes to prevent the introduction of metal or other particles into the
DHW tank.
4.2 Provision for Switzerland
Make the connections according to the instructions of the Société
Suisse de l'Industrie du Gaz et des Eaux. Comply with local
instructions from water distribution plants.
C000692

10 BMR 80 29/05/06 - 300008885-001-A
4.3 Safety valve
In compliance with the safety rules, fit a sealed safety valve
to the tank's domestic cold water inlet.
Calibration of the safety valve : J10 bar.
For France, we recommend hydraulic safety units fitted with a
membrane 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
ThesafetyunitanditsconnectiontotheDHWtankmustbeofatleast
the same diameter as the cold water supply pipe in the tank's
domestic circuit.
No isolating devices should be located between the safety valve or
unit and the tank.
Thesafetyunitoutletpipemusthaveauniformandsufficientgradient
and its diameter must be at least equal to that of the outlet opening
in the safety unit (to prevent the flow of water being hindered if the
pressure 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 water
inlet to enable draining. Otherwise, fit a drainage pipe to the lowest
point of the tank.
Germany
Definethedimensionsofthesafety valve in accordance with the DIN
1988 standard :
Fit the safety valve above the calorifier to obviate having to drain the
tank during servicing
Install the drainage valve at the lowest point on the calorifier.
4.4 Isolation valves
Hydraulically isolate the primary and secondary circuits using stop
valves to facilitate maintenance operations on the calorifier. The
valves make it possible to carry out maintenance on the tank and its
components without draining the entire installation.
These valves are also used to isolate the calorifier when conducting
apressurisedcheckon the leak tightnessof the installation ifthe test
pressure for the calorifier is greater than the admissible operating
pressure.
If the mains pipes are made of copper, fit a sleeve made of
steel, cast iron or any other insulating material between the
tank's hot water outlet and the pipes to prevent corrosion
to the connection
4.5 Connecting the domestic cold water
Make the connection to the cold water supply in accordance with the
following diagram. Install a water drain in the boiler room and a
"funnel-siphon" for the safety unit.
The components used for the connection to the cold water supply
must comply with the prevailing standards and regulations in the
country concerned. Fit a non-return valve to the domestic cold water
circuit.
4.6 Pressure reducer
Ifthesupplypressureexceeds 80% of thevalve or safety unit setting
(e.g.5.5barsfor a safety unitset at7 bars), apressure reducer must
be installed upstream of the DHW tank. Install the pressure reducer
downstream of the water meter in such a way as to ensure the same
pressure in all of the pipes in the installation.
4.7 Bleed circuit
During the heating process, water can flow through the
bleed circuit to guarantee the safety of the installation. Do
not block!
Capacity
litres
Dimension of the valve
Min. dimension of the inlet
connection
Heating output
kW
max
< 200 R or Rp 1/2 75
200 J1000 R or Rp 3/4 150

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29/05/06 -300008885-001-A BMR 80
4.8 Domestic hot water circulation loop
To guarantee the availability of hot water as soon as the taps are
turned on, a circulation loop between the draw-off points and the
recirculation pipes in the DHW tank can be installed. A non-return
valve must be included in this loop.
4.9 Measures to take to prevent hot water blow back
Fit a non-return valve to the domestic cold water circuit. If using a closed calorifier, the non-return valve must be easily
accessible.
4.10 Typical systems
9. Isolation valve
17. Drain cock
24. DHW tank heat exchanger primary inlet
25. DHW tank heat exchanger primary outlet
28. Domestic cold water inlet
29. Pressure reducer- If thesupplypressure exceeds 80%ofthevalve
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
53. Type EA protection unit (stop valve + nonreturn valve)
54. End of the discharge pipe free and visible 2 to 4 cm above the flow
funnel
55. Domestichotwaterdiaphragmsafetyvalvesealedandcalibratedat
7bar
56. Bleed valve
57. Domestic hot water outlet
5 Filling the system
A connecting part, a T-piece and an annealed copper pipe are
provided with the mounting frame.
Cut the copper pipe to the correct length using a pipe cutter.
24 25
2857 56
8953N029B
ADomestic cold water inlet
Bto the safety control unit

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6 Electrical connection
The sensor must be connected before switching on the
boiler.
Connect the domestic hot water sensor to the DHW sensor terminal
(O.DHW:) on the control panel.
Engage the NTC DHW sensor fully in the thimble tube.
Commissionning
1. Rinse the domestic circuit.
2. Fill the tank using the cold water inlet pipe.
3. Degas the installation.
To do so:
- Fill it completely with water, leaving ahot water tap open. Only
reclosethisvalvewhentheflowisregularandtherearenonoises
or hammering in the pipes.
- Then successively degas all the hot water pipes by opening the
corresponding valves.
- Degas the tank exchanger circuit using the bleed valve provided
for this purpose
- Check the safety devices (particularly the valve or safety unit),
referring to the instructions provided with these components

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29/05/06 -300008885-001-A BMR 80
Maintenance
1 Magnesium anode
The magnesium anodes must be checked at least every 2, years.
After the first check, determinethe frequency of future checks on the
basis of anode wear.
The anodes can be checked by two methods:
`Inspection
- the anode must be replaced if its diameter is less than 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 be
replaced.
If the anodes must be replaced, proceed as described below.
2 Valve or safety unit
The valve or safety unit must be operated at least once a month in
order to ensure that it is operating correctly and to be forewarned of
any overpressure which would damage the DHW tank.
Failure to comply with this maintenance rule may cause
deterioration of the DHW tank and the cancellation of the
guarantee.
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.
4 Cladding
The cladding of the DHW tank can be cleaned with soapy water.

14 BMR 80 29/05/06 - 300008885-001-A
Procedures to follow for descaling, or checking or replacing the magnesium anodes
1. Cut off the cold water supply and drain the DHW tank. To drain
though the safety unit, turn the unit to drain and turn on a hot
water tap (or a bleed valve) to allow air to enter.
2. Pull out the DHW sensor (A).
3. Remove the inspection trap (13 mm spanner) (B).
4. Check the anode and replace it if necessary (C).
5. Remove limescale deposits in the form of sludge or strips in the
bottom of the tank. On the other hand, do not touch limescale
adheringtothewallsofthetankasitprovideseffectiveprotection
against corrosion and improves the insulation of the DHW tank.
6. Descale the exchanger in order to maintain its performance
levels.
7. Fit the unit together.
8. Replace the seal Dand position it in the inspection opening,
taking care to fit the lug pointing to the outside of the DHW
calorifer.
9. The sensor Acoming from the boiler should be replaced in the
thimble tube
The flange mounting bolts must not be excessively tight:
6Nm+1/-0
Use a dynamometric spanner.
Approximately 6 Nm is obtained by manipulating the box
spanner with the small lever and 15 Nm by manipulating it with
the large lever.
10. After reassembly, check the watertightness of the lateral flange.
11. Switch on.

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29/05/06 -300008885-001-A BMR 80
Maintenance form
No. Date Checks made Comments By Signature
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

DEDIETRICH THERMIQUES.A.S.-Sparepartscentre
4,rue d’Oberbronn-F-67110REICHSHOFFEN- Tél.: [phone]-Fax :[phone]
cprdedietrichthermique.com
Spare parts
BMR 80
29/05/06 - 300008885-002-A
To order a spare part, quote the reference number next to the part required.

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29/05/06 -300008885-001-A BMR 80
Rep Reference Description
1100005562 Tank BMR 80 - Package EE 53
289535525 Complete buffer tank
389538509 Complete Anode diameter 33 - Length
180
489705511 Seal kit 7 mm + retainer ring 5 mm
595014035 Seal ø 25x8-5x2
694974525 Nylon brace 8 mm
7200005664 Hanging rail
8200005814 Fastening clamp
989538545 Screw bag
Sensor AD 226
(to be ordered separately)
10 95362448 KVT sensor 60 l. 5 m
11 85754909 2-pin connector for DHW sensor
Kit de liaison HG 29
15 300008669 Connecting pipe - Primary circuit
16 300008685 flexible Length 520 mm + 2 G3/4" elbows
17 95013070 Flat joint 24x18x1.5

18 BMR 80 29/05/06 - 300008885-001-A
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.

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29/05/06 -300008885-001-A BMR 80
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:

AD051