Remeha Hot Water Cylinder Brochure

EVERYONE CAN NOW ENJOY HOT WATER ON TA P.

HOT WATER

CYLINDERS

Unvented Direct, Indirect and

Solar 400-2500 litres.

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INTRODUCTION

60% of the buildings that will be standing in 2050 are already here with us today. So tomorrow, there will be a great need for intelligent heating technology speciﬁcally designed for refurbished buildings. This is where Remeha’s advanced thinking is leading the way. To a future where our highly efﬁcient heating systems help to improve the overall energy efﬁciency of refurbished buildings. Giving them new life and a more sustainable future.

Remeha is committed to helping create a more sustainable future with our comprehensive range of energy-efﬁcient, low-carbon heating solutions. Our superior quality, British-manufactured hot water cylinder range offers 24 options of Unvented Direct, Indirect and Solar cylinders with 400l, 500l, 800l, 1000l, 1250l, 2000l and 2500l models available in each of the three categories. A range of optional immersion heater units is also available to provide boost and backup.

WHY CHOOSE DUPLEX STAINLESS STEEL?

Remeha Commercial cylinders are manufactured from Duplex 2205 stainless steel to EN 1.4462, ASTM S3 2205/S31803 (with PRE value of 35). This Ferritic-Austenitic steel combines high strength, excellent corrosion resistance and stress corrosion cracking resistance as well as excellent pitting resistance. This marine-grade Duplex gives a low thermal expansion and high chloride resistance. It has a great strength-to-weight ratio which allows the ﬁnished cylinder to be substantially lower than other materials.

2205 is a high speciﬁcation grade of Duplex stainless steel, making it highly suitable for commercial water cylinders. 2205 has approximately twice the proof strength of standard304 and 316 types of stainless steel, meaning it is well equipped to deal with the system pressures involved. Thepitting and crevice corrosion resistance in potable wateris greater than that of 316 stainless and other leaner alloyed Duplex stainless types often used in water cylinders.End users can therefore be assured of a long trouble-free service life.

The Duplex metallurgical structure is carefully balanced to provide dual austenitic and ferritic phases, which provides the high strength level and acts as an effective impediment to stress corrosion and cracking.

Remeha Commercial cylinders come with a 6 bar operatingpressure as standard. The design options beingmaximised by this choice.

REMEHA HOT WATER CYLINDERS

OVERVIEW

Flow rates are crucial to today’s hotwaterspeciﬁers

We have all been in a hotel where the shower does not perform and we have to run around to get wet. Why? Because the hot water system was not designed correctly. Today this all changes with Remeha Commercial, typicallymassive ﬂow rates in excess of 100 litres/min can be achieved. If you have higher than that coming in, the cylinder will deliver that too.

Heat recovery in minutes, not hours

Remeha Commercial cylinders are designed in such a way that if provided with the prescribed heat input, the units willrecover from cold in less than 60* minutes. This is done by the inclusion of super high performance coils or commercial electrical elements.

Remeha Hot Water Cylinders are approved and certiﬁed by a third party for safety and performance and manufactured in the UK.

REMEHA HOT WATER CYLINDERS

Remeha’s range of Hot Water Cylinders meets all British environmental legislation and regulation standards as well as EU Directives. This includes the recommendations of HSE Document L8 relating to Legionella Pneumophilia, with the cylinders containing a minimum of two inspection ports (three on larger models) and three optional destratiﬁcation loop kits to circulate the hot water and enable pasteurisation.

CODES OF PRACTICE/LEGISLATION

EU Directives

Pressure Equipment Directive 97/23/EC.

Low Voltage Direc tive (LVD) 2006/95/EC.

Electromagnetic Compatibility (EMC) Directive 2004/1 08/EC.

Ecodesign Requirements for Energy Related Products (ERP) Directive 2009/125/EC.

Legislation

Building Regulations Part G and Part L (England and Wales).

Scottish Building Standards Section 4 and Section 6.

Building Regulations (Northern Irel and) Parts F1 and F2 and Part P.

Water Supply (Water Fittings) Regulations (England and Wales).

The Water Byelaws 2004 Scotland.

Water Supply (Water Fittings) Regulations (Northern Ireland).

Standards

Relevant clauses of the following standards are complied with: EN 12897, EN 60335-2-21.

The stainless steel materials used comply with the relevant clausesof:EN 1008 8.

Components supplied comply with the following standards:

BS EN 1490 Building Valves – Combined Temperature and PressureRelief Valves.

BS EN 1491 Building Valves – Expansion Valves.

BS 6144 Specification for Expansion Vessels Using An Internal Diaphragm For Unvented Water Supply Systems.

BS EN 1567 Building Valves – Water Pressure Reducing Valves and Combination Reducing Valves.

BS EN 60730-2-9 Automatic Electrical Controls – Particular Requirements for Temperature Sensing Controls.

BS EN 60730-2-8 Automatic Electrical Controls – Particular Requirements for Electrically Operated Water Valves.

BS EN 13959 Anti-pollution Check Valves.

The use of these water heaters will aid in compliance with:

Health and Safety Executive Approved Code of Practice L8: The control of legionella bacteria in water systems.

BS EN 806 Parts 1 to 5: Specification for installations inside buildings conveying water for human consumption.

BS 8558 Guide to the design, installation, testing and maintenance of services supplying water for domestic use within buildings.

Chartered Institute of Building Services Engineers Guide B and Guide F.

Manufactured in a factory approved to:

BS EN ISO 9001 · OHSAS 18001 · ISO 14001

LEGIONELLA PNEUMOPHILIA – MEETING RECOMMENDATIONS OF HSE DOCUMENT L8

• It is the responsibility of us all to consider the safety of others when designing and installing hot water systems. Advice on doing so is contained in HSE document L8, this advice is heavily detailed and precise

• Essentially, it is recommended that any cylinder should have access for inspection and cleaning, a system of pasteurisation and where possible dead legs in the system are designed out

• Remeha Commercial provides features which meet these needs.

• A minimum of two inspection ports (three on larger models)

• Three optional destratification loop kits (shunt pumps) areavailable to circulate the hot water from top to bottom toenable pasteurisation

Temperature vs state of legionella bacteria:

20°C and below Legionella bacteria are dormant

20°C to 45°C Legionella bacteria multiply

55°C Legionella bacteria die in five to six hours

60°C Legionella bacteria die in 32 minutes

66°C Legionella bacteria die in two minutes

Above 70°C Disinfection taking place

Some large cylinders have high heat losses, substantially increasing fuel costs and pollution. All this ends with the Remeha Commercial range.

• The Remeha Commercial range of cylinders are insulated with 100mm of polyurethane foam of initial K-value 0.024 W/m.k, flammability to BS 4735

• The foam is applied to all surfaces of the cylinder including around the legs and the lifting lugs at the top

Remeha Commercial cylinders are fully approved andcertified.

Typically calorifiers are made to British and European manufacturing standards. These units are generally bespoke and essentially one-off, the performance is nottested or qualified by any third party. Claims madeforperformance will be based on calculations ratherthantesting.

That is not the case with Remeha Commercial cylinders.The range has been tested by Kiwa and Nemkofor safety and performance. They are built entirelyin a purpose-designed manufacturing facility inthe UK.

OVERVIEW

* Depending on incoming cold w ater temper ature and pr imary flo w conditions.

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40°

30°

45°

35°

REMEHA HOT WATER CYLINDERS

REMEHA COMMERCIAL HOT WATER CYLINDERS MODEL RANGE

24 models in the range:

400, 500, 800, 1000, 1250, 2000,

2500 in Direct, Indirect and Solar

400 Litre

Ø872 x H1500

500 Litre

Ø872 x H1800

800 Litre

Ø1024 x H1906

OVERVIEW

1000 Litre

Ø1024 x H2301

REMEHA HOT WATER CYLINDERS

INDIRECT

REMEHA COMMERCIAL INDIRECT

Remeha Commercial cylinders offer a range of indirectcylinders.

Each unit is equipped with a high performance coil which is designed to heat the cylinder from cold, in less than 60* minutes. No more do you have to turn the hot water system on the day before you use it.

Optional immersion heater units are available to provide boost and backup.

All units are delivered with a full unvented hot water kit whichcomprises:

Expansion vessel and support

(WR AS approved, CE marked in accordance with Directive PED/97/23/CE to BS6144/1980).

Pressure reducing valve to BS EN 1567

(WRAS approved, DVGW certiﬁed).

Single check valve to BS 6282 Part 1 1981

1250 Litre

Ø1224 x H1937

1450 Litre

Ø1224 x H2253

2000 Litre

Ø1476 x H2011

2500 Litre

Ø1476 x H2416

35°

40°

30°

45°

Expansion relief valve to BS 6283 Part 1 1991

Isolating ball valve to BS 5174

Isolating drain valve

Tundish

Temperature and pressure relief valve

Commercial isolation zone valve

INDIRECT

Nominal capacity (litre) 400 500 800 1000 1250 1450 2000 2500

A (mm) 150 0 1800 1906 2301 1937 2253 20 11 2416

B (mm) 872 872 1024 1024 12 24 122 4 1476 1476

Material Duplex 2205 Duplex 2205 Duplex 2205 Duplex 2205 Duplex 2205 Duplex 2205 Duplex 2205 Duplex 2205

Oper ating pressure (6 bar) Yes Yes Yes Yes Yes Yes Yes Yes

Insulation 100m mPU 100mmP U 100mmPU 100mmPU 100mmPU 100mmPU 100mmPU 100mmPU

Outlet 1" 1" 2" 2" 2" 2" 2" 2"

Inlet 1" 1" 1½" 1½" 1½" 1½" 2" 2"

Coil 1" 1" 1¼" 1¼" 1½" 1½" 1½" 1½"

Tappings ½" ½" ½" ½" ½" ½" ½" ½"

Secondary return 1" 1" 1" 1" 1" 1" 1" 1"

Inspection por t (mm) 115 115 115 115 115 115 115 115

Coil – ar ea/rating @ 30 l/min 2m

Element (kW) (Max) 24 24 45 45 54 54 54 54

Empt y weight (kg) 105 110 16 4 188 319 322 445 450

Full weight (kg) 505 610 96 4 118 8 1569 1872 2445 2950

/43.6kW 2m2/41.8kW 3m2/52 .7kW 3m2/51. 4kW 5m2/63.6kW 5m2/61.2kW 7. 5m2/98.4kW 7.5 m2/86.4kW

* Depending on incoming cold w ater temper ature and pr imary flo w conditions.

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