low surface temperature collection - stelrad · pdf filebritish standard code of practice bs...

Safety Series

Low Surface Temperature Collection

CPD BIM

Standard 72 models

Heights: 500mm, 600mm & 800mm

Lengths: 560mm to 1960mm

Outputs: 196 to 2767 watts, 668 to 9442 Btu/hr

Types: K1, P+ & K2

LST RangeStandard

Stelrad’s range of Low Surface Temperatureradiators is the most comprehensive inthe UK, with sizes and models to suitall applications. They all meet NHSGuidance for ‘safe hot water and surfacetemperature’ and are finished with anti-bacterial paint as standard, makingthem the No.1 choice for safety-criticalenvironments. Installation is simpleand all components are included ina single robust pack.

16970_Stelrad Radiator Book 2015_Layout 1 23/04/2015 15:34 Page 36

LST RangePlus Vertical

Plus Vertical 3 models

Height: 2110mm

Lengths: 560mm, 660mm & 760mm


Type: K2

CPD BIM

16970_Stelrad Radiator Book 2015_Layout 1 23/04/2015 15:34 7

LST Rangei Plus

i Plus 72 models

Heights: 500mm, 650mm & 800mm

Lengths: 650mm to 2050mm


Types: K1, P+ & K2

CPD BIM


SafetyStelrad has created a range of Low Surface Temperatureradiators which provide the perfect solution for allspecification requirements in safety critical environments.

The complete choiceStelrad LST range offers you the flexibility you need

• The LST Standard leaves you free to specify yourpreferred controls

• The LST Plus and LST i Plus offer an integral remotesensing thermostat valve, the highly specified DanfossRAS-D Remote Sensor

• The LST Vertical is ideal where space is at a premium

• An arthritic adaptor is supplied as standard for less ableenvironments - along with a lockshield valve which canonly be adjusted with a 6mm Allen key, hidden with aneat metal dust cover to discourage unauthorisedtampering. (excludes LST Standard)

The complete package• Every Stelrad LST radiator is supplied with an

attractive, flat panel outer casing, which is totallyreversible to allow piping flexibility

• Simple and quick to install, the casing is held bysecurity fittings with a unique seam fixing bracketsystem to prevent unauthorised access to theemitter accommodated inside

• For added protection, the smooth surfaceis coated in anti-bacterial paint

• The emitter provides high outputs throughconvection for outstanding heating performance

• Controlled independent laboratory testing ensuresthat each emitter is guaranteed to perform to amaximum working pressure of 116 psi (8 bar)and conform to BS EN 442, the EuropeanStandard for radiators

• All specified components required suppliedin one robust package

Anti-bacterial paint• Every LST emitter is subjected to a multi-stage

cleaning process before the paint is applied. Thisinvolves several rinsing stages, including an ironphosphate and demineralisation phase

The first coat of paint is applied by electrophoresisand the radiator is then stoved and cooled

• Followed by a second powder coat in warm white,the emitter then goes through a final curing stage.It is then allowed to cool prior to packaging

• All exposed painted surfaces are finished in a longlasting anti-bacterial coating

LST i PlusRemote sensing thermostatic valve

• The Danfoss RAS-D Remote Sensor is designedspecifically for commercial heating systems and canbe pre-set to allow adjustment of room temperaturebetween 5°C and 26°C

• Special tools are not required, as the valve is glandseal removable

• Suitable for both 1⁄2" steel and 15mm copper piping,with left or right hand, same end connections for flowand return, gives flexibility of installation

Lockshield valve• Able to withstand 10 bar static pressure, the valve

has a drain tap adaptor available, which can alsobe used as a filling point

• Mandatory fittings should be used in order to complywith current water regulations

Connections• 2 x 1⁄2" connections as standard, complete with Danfoss

remote sensing thermostatic radiator valve, pre-pipedwith 2 x 1⁄2" BSP connections at 50mm centrespositioned at either left or right of the casing

For further information and

advice call 0844 543 6200CP BIM


LST Standard, LST i Plus& LST Vertical temperature tableFor systems not operating at ∆t50 the factors in the tablebelow should be applied. The output of a given radiatorcan be obtained by multiplying the quoted ∆t50 outputby the operating factor. Conversely, to derive a non ∆t50output, divide the heat output required by the relevantoperation factor. This ‘∆t50 equivalent output’ can thenbe used to select a radiator from the standard tables.

Testing and operating pressuresAll models are high pressure tested to withstand 152.3psi (10.5 bar). Strictly controlled independent laboratorytesting ensures that all Stelrad radiators are guaranteedto perform to a maximum working pressure of 116 psi(8 bar) at a maximum temperature of 95°C. All conformto BS EN 442 - the European Standard for radiators.

CautionTo ensure that the emitter complies with all aspectsof the NHS guidance for “Safe hot water and surfacetemperature”, Stelrad recommends that a maximumflow temperature of 80° be used with a 20° dropacross the system.

When designing for domestic systems we recommendthat the Stelrad LST range be used only in heatingsystems complying with the British Standard Codeof Practice for Central Heating for Domestic PremisesBS EN 12828:2003 and BS EN 12831:2003.

Single feed, indirect cylinders are not recommended asshould interchange of water occur, fresh aerated waterwould enter the heating system, resulting in corrosion.

Water treatmentOn completion of the installation, the system shouldbe properly flushed and filled in accordance with theBritish Standard Code of Practice BS 7593:2006 forthe Treatment of Water in Domestic Hot Water CentralHeating Systems, Part L of Building Regulationsand Good Practice Guidance for Scotland.

After installation of a new Stelrad radiator the centralheating system should be cleaned and flushed withcleaner to remove existing contaminants, flux residueand other installation debris which, if left, can causedamage to the new radiator. Afterwards, treat thesystem with an inhibitor to ensure long term protectionagainst corrosion and limescale.

A comprehensive range of quality chemicals includinginhibitors, cleaners, leak sealers and noise reducers thatprotect and maintain central heating systems can beobtained from:

Sentinel Performance Solutions LtdThe Heath Business & Technical Park, Runcorn,Cheshire WA7 4QXTel: 01928 588 330 (UK) www.sentinel-solutions.net

Fernox - Cookson Electronics,Forsyth Road, Sheerwater, Woking, SurreyGU21 5RZ www.fernox.com

Pressure drops

Example: Exact output at ∆t50 = 2000 Btu/hrOutput at ∆t30 = 2000 x 0.515 = 1030 Btu/hrAverage coefficient of 130 is used in the example above

°C °F∆t Operating Factor ∆t Operating Factor

5 0.050 10 0.057

10 0.123 20 0.142

15 0.209 30 0.240

20 0.304 40 0.348

25 0.406 50 0.466

30 0.515 60 0.590

35 0.629 70 0.721

40 0.748 80 0.858

45 0.872 90 1.000

50 1.000 100 1.147

55 1.132 110 1.298

60 1.267 120 1.454

65 1.406 130 1.613

70 1.549 150 1.776

75 1.694 - -


650

500

800

K1

Casing Height

50 ΔtCasing

Length mm Emitter

Height mmEmitter

Length mm

P+ K2

560760960

11601360156017601960560760960

11601360156017601960560760960

11601360156017601960

300300300300300300300300450450450450450450450450600600600600600600600600

400600800

10001200140016001800400600800

10001200140016001800400600800

10001200140016001800

196293391489587685782880290435580725870

101511601305365548730913

1096127814611643

6691000133416682003233726683003989

148419792474296834633958445312451870249331153740436149855606

284426568710852994

11361278386580773966

1159135215461739501751

100212521502175320032254

96914541938242329073392387643611317197926373296395546135275593317092562341942725125598168377691

348522696870

1044121813921566478717956

11951434167319122151615922

123015371844215224592767

118717812375296835624156475053431631244632624077489357086524734120983146419752446295734383939441

UIN UIN UINWatts Btu/hr

Watts Btu/hr

Watts Btu/hr

Heat output

Heat output

Heat output

145000145001145002145003145004145005145006145007145024145025145026145027145028145029145030145031145048145049145050145051145052145053145054145055

1

145008145009145010145011145012145013145014145015145032145033145034145035145036145037145038145039145056145057145058145059145060145061145062145063

145016145017145018145019145020145021145022145023145040145041145042145043145044145045145046145047145064145065145066145067145068145069145070145071

1

650

500

800

K1

Casing Height

40 ΔtCasing

Length mm Emitter

Height mmEmitter

Length mm

P+ K2

560760960

11601360156017601960560760960

11601360156017601960560760960

11601360156017601960

300300300300300300300300450450450450450450450450600600600600600600600600

400600800

10001200140016001800400600800

10001200140016001800400600800

10001200140016001800

147219292366439512585658217325434542651759868976273410546683820956

10931229

500748998

12481498174819962246740

1110148018502220259029613331932

1399186323302797326237294193

212319425531637744850956289434578723867

101111561301375562749936

1123131114981686

7251087145018122174253728993262985

148019732465295834513946443812791917255731953833447451125753

260390521651781911

10411171358536715894

1073125114301609460690920

11501379161018392070

88813321776222026643109355339971220183024403050366042704880549015702353313939234706549262767062

UIN UIN UIN

Watts Btu/hr

Watts Btu/hr

Watts Btu/hr

Heat output

Heat output

Heat output

145000145001145002145003145004145005145006145007145024145025145026145027145028145029145030145031145048145049145050145051145052145053145054145055

1

145008145009145010145011145012145013145014145015145032145033145034145035145036145037145038145039145056145057145058145059145060145061145062145063

145016145017145018145019145020145021145022145023145040145041145042145043145044145045145046145047145064145065145066145067145068145069145070145071

Stelrad LST Range Standard

(75/65/20°C)

(65/55/20°C)

∆t50 is the UK’s industry standard for heating outputs, which has an operating temperature of 75/65/20°C if you havea low temperature heat source you may wish to consider ∆t40 or ∆t30 output (see your installer or system designer).


650

500

800

K1

Casing Height

30 ΔtCasing

Length mm Emitter

Height mmEmitter

Length mm

P+ K2

560760960

11601360156017601960560760960

11601360156017601960560760960

11601360156017601960

300300300300300300300300450450450450450450450450600600600600600600600600

400600800

10001200140016001800400600800

10001200140016001800400600800

10001200140016001800

101151201252302353403453149224299373448523597672188282376470564658752846

344515687859

1031120413741546510764

101912741529178420382293641963

128316041926224625672887

146219293366439512585658199299398497597696796896258387516645774903

10321161

499749998

12481497174719962246678

1019135816972037237627173056880

1320176122002639308035203961

179269358448538627717806246369492615739862985

1108317475633792950

110812661425

611917

122315291834214024462752840

126016802100252029403360378010811620216127013240378143214862

UIN UIN UINWatts Btu/hr Watts Btu/hr Watts Btu/hrHeat output Heat output Heat output

145200145201145202145203145204145205145206145207145208145209145210145211145212145213145214145215145216145217145218145219145220145221145222145223

145248145249145250145251145252145253145254145255145256145257145258145259145260145261145262145263145264145265145266145267145268145269145270145271

145224145225145226145227145228145229145230145231145232145233145234145235145236145237145238145239145240145241145242145243145244145245145246145247

Stelrad LST Range Standard

EN 442 Certification Data - CETIAT tested in accordance with BS EN 442Type

Casing Height 500 650 800 500 650 800 500 650 800

Emitter Height 300 450 600 300 450 600 300 450 600

W/m at 75/65/20 489 725 913 710 966 1252 870 1195 1537

n-coefficients 1.19 1.25 1.34 1.24 1.27 1.31 1.27 1.30 1.32

Heated Surface Area (m²/m) 2.09 3.37 4.66 2.44 3.84 5.24 3.51 5.62 7.74

Weight (kg/m) 17.80 23.50 29.40 22.70 30.72 38.40 24.40 33.30 42.50

Water Contents (l/m) 1.89 2.57 3.25 3.70 5.15 6.60 3.70 5.15 6.60

K1 P+ K2

(55/45/20°C)


LST Standard wall fixings & bracket positionsAll dimensions in mm. Inches in brackets.

B

A 195 (7.67)

Casing Length

Casi

ng H

eigh

t

195 (7.67)

165 (6.49) 165 (6.49)

195 (7.67)

Casing Length

195 (7.67)

100

(3.9

3)

102

(4.0

1)

24

(0.9

4)

134

(5.2

7)

Cas

ing

Hei

ght

960 800760 650560 500

CasingLength

CasingHeight

24

(0.9

4)

100

(3.9

3)

102

(4.0

1)

134

(5.2

7)

165 (6.49) 165 (6.49)

A B

800650500

CasingHeight

CasingLength

13601560

19601760

1160545645

845745

445575675

875775

475


LST Standard connection optionsAll dimensions in mm. Inches in brackets.

A

25

(0.9

8)

132 (5.19)

119

(4.6

8)

Casi

ng H

eigh

t

800 550650 400500 250

CasingHeight A

LST Standard piping options


2110

Casing Height

50 ΔtCasing

Length mm Emitter

Height mmEmitter

Length mm

660560

18001800

500400 142241

142242142243

15881271

54184336

760 1800 600 1855 6329

W

UIN Watts Btu/hrHeat output

LST Plus Vertical installation instructionsAll dimensions in mm. Inches in brackets.

Present casing and bottom bracket to the wall and mark drill hole positions.

Fit pipework and valve connections to the radiators.

2x

195 (7.68) 195 (7.68)

1544

(60

.79)

404

(15.

91)

359

(14.

13)

257

(10.

12)

459

(18.

07)

17.5 (0.69)

165 (6.50)

2086

.5 (

82.1

5)

560, 660, or 760

indentation

radiator indentation left

radiator indentation right

Bottom view

Looking to the frontof the radiator


L R

Stelrad LST Range Plus Vertical

(75/65/20°C)



LST Plus Vertical connection optionsAll dimensions in mm. Inches in brackets.

132 (5.19)

243

(9.5

6)

760660560

CasingLength

544444344

A

A

50(1.96)

Casing length

indentation

radiator indentation left

radiator indentation right

Bottom view




Stelrad LST Range i Plus

650

500

800

K1

Casing Height

50 ΔtCasing

Length mm Emitter

Height mmEmitter

Length mm

P+ K2

300300300300300300300300450450450450450450450450600600600600600600600600

400600800

10001200140016001800400600800

10001200140016001800400600800

10001200140016001800

196293391489587685782880290435580725870

101511601305365548730913

1096127814611643

6691000133416682003233726683003989

148419792474296834633958445312451870249331153740436149855606

284426568710852994

11361278386580773966

1159135215461739501751

100212521502175320032254

96914541938242329073392387643611317197926373296395546135275593317092562341942725125598168377691

348522696870

1044121813921566478717956

11951434167319122151615922

123015371844215224592767

118717812375296835624156475053431631244632624077489357086524734120983146419752446295734383939441

UIN UIN UINWatts Btu/hr

Watts Btu/hr

Watts Btu/hr

Btu/hr

Heat output

Heat output

Heat output

145200145201145202145203145204145205145206145207145208145209145210145211145212145213145214145215145216145217145218145219145220145221145222145223

145248145249145250145251145252145253145254145255145256145257145258145259145260145261145262145263145264145265145266145267145268145269145270145271

145224145225145226145227145228145229145230145231145232145233145234145235145236145237145238145239145240145241145242145243145244145245145246145247

650850

105012501450165018502050650850

105012501450165018502050650850

105012501450165018502050

650

500

800

K1

Casing Height

40 ΔtCasing

Length mm Emitter

Height mmEmitter

Length mm

P+ K2

300300300300300300300300450450450450450450450450600600600600600600600600

400600800

10001200140016001800400600800

10001200140016001800400600800

10001200140016001800

147219292366439512585658217325434542651759868976273410546683820956

10931229

500748998

12481498174819962246740

1110148018502220259029613331932

1399186323302797326237294193

212319425531637744850956289434578723867

101111561301375562749936

1123131114981686

7251087145018122174253728993262985

148019732465295834513946443812791917255731953833447451125753

260390521651781911

10411171358536715894

1073125114301609460690920

11501379161018392070

88813321776222026643109355339971220183024403050366042704880549015702353313939234706549262767062

UIN UIN UIN

Watts Btu/hr

Watts Btu/hr

Watts Btu/hr

Heat output

Heat output

Heat output

145200145201145202145203145204145205145206145207145208145209145210145211145212145213145214145215145216145217145218145219145220145221145222145223

1

145248145249145250145251145252145253145254145255145256145257145258145259145260145261145262145263145264145265145266145267145268145269145270145271

145224145225145226145227145228145229145230145231145232145233145234145235145236145237145238145239145240145241145242145243145244145245145246145247

650850

105012501450165018502050650850

105012501450165018502050650850

105012501450165018502050

(75/65/20°C)

(55/45/20°C)



Stelrad LST Range i Plus

650

500

800

K1

Casing Height

30 ΔtCasing

Length mm Emitter

Height mmEmitter

Length mm

P+ K2

300300300300300300300300450450450450450450450450600600600600600600600600

400600800

10001200140016001800400600800

10001200140016001800400600800

10001200140016001800

101151201252302353403453149224299373448523597672188282376470564658752846

344515687859

1031120413741546510764

101912741529178420382293641963

128316041926224625672887

146219293366439512585658199299398497597696796896258387516645774903

10321161

499749998

12481497174719962246678

1019135816972037237627173056880

1320176122002639308035203961

179269358448538627717806246369492615739862985

1108317475633792950

110812661425

611917

122315291834214024462752

840126016802100252029403360378010811620216127013240378143214862

UIN UIN UINWatts Btu/hr Watts Btu/hr Watts Btu/hrHeat output Heat output Heat output

145200145201145202145203145204145205145206145207145208145209145210145211145212145213145214145215145216145217145218145219145220145221145222145223

145248145249145250145251145252145253145254145255145256145257145258145259145260145261145262145263145264145265145266145267145268145269145270145271

145224145225145226145227145228145229145230145231145232145233145234145235145236145237145238145239145240145241145242145243145244145245145246145247

650850

105012501450165018502050650850

105012501450165018502050650850

105012501450165018502050

EN 442 Certification Data - CETIAT tested in accordance with BS EN442Type

Casing Height 500 650 800 500 650 800 500 650 800

Emitter Height 300 450 600 300 450 600 300 450 600

W/m at 75/65/20 489 725 913 710 966 1252 870 1195 1537

n-coefficients 1.19 1.25 1.34 1.24 1.27 1.31 1.27 1.30 1.32

Heated Surface Area (m²/m) 2.09 3.37 4.66 2.44 3.84 5.24 3.51 5.62 7.74

Weight (kg/m) 17.80 23.50 29.40 22.70 30.72 38.40 24.40 33.30 42.50

Water Contents (l/m) 1.89 2.57 3.25 3.70 5.15 6.60 3.70 5.15 6.60

K1 P+ K2

(55/45/20°C)

16970_Stelrad Radiator Book 2015_Layout 1 23/04/2015 15:36 2

LST i Plus wall fixings and bracket positionsAll dimensions in mm. Inches in brackets.

237 (9.33) 237 (9.33)

Casing Length

B

A

Casi

ng H

eigh

t

Casi

ng H

eigh

t

134

(5.2

7)

Casing Length

237 (9.33) 237 (9.33)

270 (10.63) 270 (10.63)

24

(0.9

4)

100

(3.9

3)

102

(4.0

1)

270 (10.63) 270 (10.63)

24

(0.9

4)

100

(3.9

3)

102

(4.0

1)

134

(5.2

7)

1450165018502050

1250515615715815

415A

548648748848

448B

1050 800850 650650 500

CasingLength

CasingHeight

800650500

CasingHeight

CasingLength


LST i Plus connection optionsAll dimensions in mm. Inches in brackets.

87

(3.4

2)

50 (1.96)

35 (1.37)

87

(3.4

2)

50 (1.96)

35 (1.37)

25

(0.9

8) A

132 (5.19)

60 (2.36)

120

(4.7

2) Ca

sing

Hei

ght

Control on left-hand side

Control on right-hand side

800 550650 400500 250

CasingHeight A

Pipe configurations


LST Standard front case view. LST Standard inside thecasing showing theemitter.

LST Standard emitter,showing high level valveoption (valve not included).

LST Standard circularknockout for TRV. Oblongknockout for pipe.

LST Plus inside the casingshowing the emitter.

LST Vertical front case view. LST i Plus front case view. LST i Plus inside the casingshowing the emitter.

LST Plus front case view.

LST Range Components

Optional cover cap todiscourage unauthorisedtampering.

An arthritic adaptor issupplied as standardfor special needsenvironments.

Accommodated within thecasing, the Stelrad LST Plusemitter, with TBSE valvearrangement and 2 x 1⁄2"BSP connections asstandard.

Connection arrangementbottom.

Connection arrangement top.

Includes Danfoss RA-2000TRV and copper pipeconfiguration.

The remote sensingthermostatic valve givesaccuracy of operationand the limiting device iscompletely hidden toprevent the maximumtemperature beingexceeded.

The Stelrad STARS Heatloss Calculatorcontains an inbuilt U value calculator.

Save time and effort by using theStelrad STARS program - the perfectsolution for accurate sizing anddesign flexibility.

www.starsapp.co.uk

LST Plus and LST i Plus Components


Safety Series

Stelrad HouseMarriot RoadMexboroughRotherhamS64 8BN

[email protected] 578 950Merchant Enquiries Telephone0844 543 6200

low surface temperature collection - stelrad · pdf filebritish standard code of practice bs...

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