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TOUCH TEMPERATURELST RANGE
www.merriottuk.com www.merriott.ie
What does Merriott stand for?Merriott offers bespoke heating and cooling solutions that are the better choice for commercial applications across the UK and Ireland.
This means investing in world-class production facilities, and manufacturing products of the very highest standard – backed by revolutionary technology, rigorous testing and stringent quality control.
As a company, we have an unwavering commitment to innovation and sustainability, pioneering products that lead the way in design, performance and energy efficiency.
Underpinning all of this is our relationship with our customers: ensuring they can rely on best-in-class service and support, from specification right through to delivery.
Content
Technical Specifications 03-06
Range Overview 02
Bracket Locations 09-10
13How to Order
11-12Optional TRV Configurations
07-08Bracket Details
02
Product Range Merriott Touch Temperature LST radiators comply with NHS guidelines for maximum surface temperature of 43˚C, at an output of 80˚C Flow and 70˚C Return (i.e. ΔT55˚C).
The Touch Temperature LST covers are used with the Precision emitter E22 and E22S as well as the Primo emitter RT22.
OutputsAll Merriott radiators are manufactured and tested in accordance with BS EN 442 and the NF quality mark requirements in its state of the art BS EN ISO 9001:2008 accredited manufacturing facility in Newport, Wales.
FinishEvery Touch Temperature LST radiator undergoes an intensive pre-treatment process to protect against rust. In pre-treatment, the radiators go through a series of washes which degrease the steel and an iron phosphate rinse passivates the surface prior to painting. The primer coat is applied by immersion in an electrophoretic bath to give total coverage of the bare steel and maximum corrosion protection. The durable topcoat (epoxy polyester powder) is electrostatically applied and stove enamel baked at 200˚C. The process is monitored to ensure continuous achievement of optimum adhesion, opacity and gloss levels.
Range Overview Packaging The entire surface of the radiator, including all 4corners, is protected by cardboard box ends andpacked in shrink wrapped polythene.
Emitters and covers are packaged separately allowing for delivery and installation of cover at second fix.
TestingFor Precision emitters, the standard test pressure is 7 Bar giving a maximum operating pressure of 5.38 Bar.
For Primo emitters, the standard test pressure is 13 Bar giving a maximum operating pressure of 10 Bar.
Materials Merriott LSTs are manufactured from flat steeltubes, 70mm x 11mm, with a standard thickness of1.5mm. Other thicknesses are available on request.
WarrantyMerriott radiators are guaranteed for a period of 10 years from date of purchase in respect of defective materials and workmanship. The system should be designed in accordance with British Standard Code of Practice for Water Based Heating Systems in Buildings BS EN 12828:2012+A1:2014 and BS EN 12831: 2003. The installation and commissioning of the system should comply with BS EN 14336:2004. On completion of the installation, the system should be properly flushed and filled in accordance with the British Code of Practice for the Treatment of Water in Domestic Hot Water Central Heating Systems BS 7593:2006, Part L of Building Regulations and Good Practice Guidance for Scotland. Merriott strongly recommends the use of corrosion inhibitor for all applications. Failure to observe these standards may invalidate the manufacturer’s warranty.
All dimensions are in mm
03
Technical Specifications
General Description Style 2 with a E12 Emitter Top Outlet GrilleTop Front Facing Grille (140mm)Bottom Inlet Grille
Style LC2A
Add 300mm for overall casing length.Max length of casing in one piece is 3000mm. max length of emitter 2700mm.
General DescriptionStyle 2 with a E22S Emitter Top Outlet GrilleTop Front Facing Grille (140mm)Bottom Inlet Grille
Style LC2B
Cover ‘A’ (mm) 560 630 700 770 840 910 980Emitter ‘B’ (mm) 143 215 288 360 433 505 578
Clearance ‘C’ (mm) 137 207 205 202 200 197 195(Watts/m) ΔT55˚C 544 726 891 1027 1186 1347 1477
Cover ‘A’ (mm) 630 700 770 840 910 980 980Emitter ‘B’ (mm) 143 215 288 360 433 505 578
Clearance ‘C’ (mm) 207 205 202 200 197 195 195(Watts/m) ΔT55˚C 739 963 1168 1364 1553 1739 1477
Style 2 LST cover
04
Technical Specification
Style LC2C
General DescriptionStyle 2 with a RT22 EmitterTop Outlet GrilleTop Front Facing Grille (140mm)Bottom Inlet Grille
Cover ‘A’ (mm) 770 840 910 980Emitter ‘B’ (mm) 300 300 400 500
Clearance ‘C’ (mm) 120 190 160 130
(Watts/m) ΔT55˚C 1241 1241 1564 1870Emitter Water Content (Litres/m) 3.39 3.39 4.39 5.38
Emitter Dry Weight (Kg/m) 16.84 16.84 22.65 28.47
Add 300mm for overall casing length.Max length of casing in one piece is 3000mm. max length of emitter 2700mm.
05
Technical Specifications
General Description Style 4 with a E12 EmitterTop Outlet GrilleTop Front Facing Grille (140mm)Bottom Front Facing Grille (70mm)
Style LC4A
General DescriptionStyle 4 with a E22S Emitter Top Outlet GrilleTop Front Facing Grille (140mm)Bottom Front Facing Grille (70mm)
Style LC4B
Cover ‘A’ (mm) 630 700 770 840 910 980Emitter ‘B’ (mm) 143 215 288 360 433 505
Clearance ‘C’ (mm) 207 205 202 200 197 195(Watts/m) ΔT55˚C 544 726 891 1027 1186 1347
Cover ‘A’ (mm) 630 700 770 840 910 980Emitter ‘B’ (mm) 143 215 288 360 433 505
Clearance ‘C’ (mm) 207 205 202 200 197 195(Watts/m) ΔT55˚C 739 963 1168 1364 1553 1739
Add 300mm for overall casing length.Max length of casing in one piece is 3000mm. max length of emitter 2700mm.
Style 4 LST cover
06
Technical Specification
Style LC4C
General DescriptionStyle 4 with a RT22 EmitterTop Outlet GrilleTop Front Facing Grille (140mm)Bottom Front Facing Grille (70mm)
Cover ‘A’ (mm) 700 770 840 910 980Emitter ‘B’ (mm) 300 300 400 500 600
Clearance ‘C’ (mm) 120 190 160 130 100
(Watts/m) ΔT55˚C 1241 1241 1564 1870 2162Emitter Water Content (Litres/m) 3.39 3.39 4.39 5.38 6.38
Emitter Dry Weight (Kg/m) 16.84 16.84 22.65 28.47 34.28
Add 300mm for overall casing length.Max length of casing in one piece is 3000mm. max length of emitter 2700mm.
07
Mounting DetailsWhen using Precision emitter
Technical specification for type E12 emitter
Standard model shown with 1/2” (15mm) ABCD connections. Height: available from 143mm to 868mm in increments of 72.5mm. Length: available from 300mm to 3400mm in increments of 100mm.
Technical specification for type E22S emitter
Standard model shown with 1/2” (15mm) ABCD connections. Height: available from 143mm to 868mm in increments of 72.5mm. Length: available from 300mm to 3400mm in increments of 100mm.
08
Bracket LocationsWhen using Precision - Horizontal Panel Radiators
215mm High
143mm High
All dimensions are in millimetres
288mm High
09
360mm - 868mm
All dimensions are in millimetres
Length 400500600700800900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000
H’ 130 140 150 150 140 150 140 150 150 140 150 150 140 150 150 150 150 140 150 150 140 150 150 140 150 140 150
J’ 140 220300400520600 720 800 900 1020 1100 1200 1320 700 720 800 820 900 920 1000 1060 1100 1120 1200 1220 1300 900
K’ 130 140 150 150 140 150 140 150 150 140 150 150 140 700 780 800 880 920 980 1000 1060 1100 1180 1220 1280 1320 900
L’ - - - - - - - - - - - - - 150 150 150 150 140 150 150 140 150 150 140 150 140 900
M’ - - - - - - - - - - - - - - - - - - - - - - - - - - 150
Bracket LocationsWhen using Precision - Horizontal Panel Radiators
10
“B” “M”300 105400 205500 305600 405700 505
Radiator Dimensions“A” 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1800 2000
“H1” 122.5 122.5 122.5 122.5 122.5 122.5 122.5 122.5 122.5 122.5 122.5 122.5 122.5 122.5 122.5“J1” 135 160 160 160 160 160 160 160 160 160 160 160 160 160 160
“H2” 150 250 350 450 550 650 750 850 950 1050 1150 1250 1350 775 875“J2” 75 175 275 375 475 575 576 775 875 975 1075 1175 1275 750 850
“H3” - - - - - - - - - - - - - 775 875“J3” - - - - - - - - - - - - - 725 825
QTY 4 4 4 4 4 4 4 4 4 4 4 4 4 6 6
RT22 emitters to be hung on speciaL RT22 wall bracket.
Bracket LocationsWhen using Primo Pressed Steel Panel Radiators
11
Optional TRV Configurations
• Each of the above is available in any RAL colour, for use in areas used by visually impaired people
• Pipework cutout is available together with the other options.
• Handings must be specified at the time of order for TRV Cutouts, Pipework Cutouts and Catflaps. Should you not know your handings, but still need to have access, TRV knockouts are supplied, and the relevant knockout can be removed on site
• Catflap access is non-lockable
• Catflap standard dimensions are 70mm x 140mm. The required location of this on the endbox should be specified at the time of order
• TRV holes are positioned as standard on endboxes to allow an inline TRV head to protrude. Should other makes and models with an offset TRV head be required, please contact the Merriott Sales Office
• Pipework Cutout is 75mm x 100mm as standard. Should anything outside of this standard be required, this should be specified at the time of order
• The location of the remote adjuster TRV cutout on the front panel must be specified at the time of order. Remote adjuster TRV make and model must be specified at the time of order as the configuration of cutouts will vary.
TRV Cutout / TRV Knockouts
Pipework Cutout
Remote Adjuster TRV cutout
CatflapBlank End Panel
Front Facing Remote Adjuster TRV Cutout
LST covers are delivered with blank end panels as standard.
12
Optional Grilles
• Hinged top grille handing should be specified at the time of order
• Anti-ligature mesh should be specified at time of order and is used instead of all grilles on specified LST
• Use of anti-ligature grilles will reduce output by 26% and unit will no longer be NHS compliant at 43 deg
Hinged top grille
Anti-Ligature top grille
13
Notes
02
www.merriottuk.com / www.merriott.ie
Follow us on @merriottuk and
Merriott UK (MAnUFACTURing FACiliTy)
QRl Radiator group imperial Park, newport, nP10 8FS
Tel: +44 (0) 1633 657 000
Fax: +44 (0) 1633 681 864
UK enqUiries
Tel: 01633 657223
Fax: 01633 657215
Merriott ireland
QRl Radiator group 11 gortahurk Road, Tonymore, Derrylin
Co. Fermanagh, BT92 9DD
northern ireland
Tel: 0800 389 9980
Fax: 0286 774 2998
repUblic of ireland
Tel: 1800 882 332
Fax: 0486 774 2998
