33868 protecta brochure dec 19 · protecta lst cover comprises of a strong single piece 1.2mm thick...
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01
PROTECTALST RANGE
www.merriottuk.com www.merriott.ie
Revision: December 2019
02
PAGE 03PROTECTA RANGE SUMMARY
PAGE 04-07PROTECTA RANGE SPECIFICATIONS
PAGE 08PRESSURE DROP
PAGE 09MOUNTING DETAILS
03
PROTECTA RANGESUMMARYDESIGNED SPECIFICALLY FOR HOMES AND OTHER BUILDINGSFREQUENTED BY CHILDREN, ELDERLY PEOPLE AND VULNERABLE ADULTS, OUR PROTECTA RANGE PUTS HEALTH AND SAFETY AT THE TOP OF THE AGENDA. IN FACT, THEY CONFORM WITH NHS GUIDELINES FOR ‘SAFE HOT WATER & SURFACE TEMPERATURE’ AND HSE HEALTH SERVICES INFORMATION SHEET ‘MANAGING THE RISKS FROM HOT WATER AND SURFACES IN HEALTH AND SOCIAL CARE’ FOR USE IN SCHOOLS, HOSPITALS AND OTHER HEALTHCARE FACILITIES.
MANUFACTUREDIN BRITAIN
NHS SURFACETEMP COMPLIANT
<43°c
CURVED EDGESFOR SAFETY
98 SIZEOPTIONS
10 YEARWARRANTY
LOCKABLECOVER
EMITTER:
Seam Top RadiatorHORIZONTAL4 heights: 300mm, 400mm, 600mm, 700mm3 types: T11, T21, T2210 lengths: 400mm, 500mm, 600mm, 700mm, 800mm, 1000mm, 1200mm, 1400mm, 1600mm, 1800mm
COVER:
HORIZONTAL 4 heights: 572mm, 672mm, 872mm, 972mm3 types: T11 (107mm wide), T21 (127mm wide), T22 (157mm wide)10 lengths: 420mm, 600mm, 800mm, 1000mm, 1200mm, 1400mm, 1600mm, 1800mm, 2000mm, 2200mm
VERTICAL2 heights: 1772mm, 2072mm1 type: T224 lengths: 420mm, 570mm, 720mm, 870mm
ACCESSORIES:
HORIZONTALDirect Fit TRV Kit Product Code: MERRDIRFIT
Universal Close Coupled TRV Product Code: MERRCLOSECOUP
VERTICALDirect Fit TRV Kit Product Code: MERRDIRFIT
Universal Close Coupled TRV Product Code: MERRCLOSECOUP
LST RANGESPECIFICATIONS
04
EMITTER:
The Protecta LST cover is designed to accommodate a standard seam top emitter, easy to clean with no sharp edges. Recommended connection configuration for NHS applications is bottom opposite end (BOE). All standard connections are ½” BSP.
COVER:
Protecta LST cover comprises of a strong single piece 1.2mm thick steel casing that is quick and easy to install. The casing can be easily lifted on and off for fitting and cleaning. The cover is secured to the brackets on each side via obscured screws. There is a simple locking device to prevent unauthorised access. All external surfaces are flat wipe clean surfaces, all external corners are rounded, eliminating sharp edges to prevent injury.
OUTPUTS:
All radiators have been manufactured and independently tested by an EN442 accredited test laboratory to BS EN442 and fully comply with the NHS Estates Health Guidance notes for ‘Safe Hot Water and Surface Temperature’ and HSE health services information sheet ‘Managing the risks from hot water and surfaces in health and social care’ with a maximum surface temperature below 43˚C at a maximum flow temperature of 80˚C / 60˚C return or 75˚C flow / 65˚C return.
COLOUR:
All radiators are de-greased, phosphated and primer coated. An epoxy polyester finishing coat in white (RAL 9016) is applied to all front and rear surfaces.
ANTI-BACTERIAL PAINT:
Coating to suppress bacterial growth..
PACKAGING:
The Protecta LST is supplied as a Single Package including the Emitter and Casing. The casing is packaged in heavy duty cardboard with internal polystyrene support for complete protection. The Emitter is fully packaged with cardboard, plastic corner protection, and fully shrink wrapped and placed inside the casings.
QUALITY:
All radiators carry the BS Kitemark and CE Mark. Produced under a quality management system - ISO 9001:2015, environmental management system - ISO 14001:2015 and Occupational health and safety management system - ISO 45001:2018.
WARRANTY:
All radiators are supplied under warranty for a period of 10 years in respect of defective materials or manufacture. The standard conditions of sale apply to all transactions. A copy is available on request.
05
TESTING:
All radiators are individually high pressure tested to 10.5 bar and are suitable for a working pressure of up to 8 bar.
CONNECTIONS:
4 x 1/2” BSP. Plug and Air Vents included. Vertical emitters are centre tapped.
WALL BRACKETS:
All radiators in the range are supplied with two or more brackets depending on the length of the emitter. The LST cover is fitted onto the casing backets via two small slots then held by two small screws.
Brackets supplied with the radiator provide a clearance of: 46mm - Single emitter 62mm - Double emitter single fin 68mm - Vertical double emitter double fin 78mm - Double emitter double fin (stated from the center of the valves).
INSTALLATION:
For indirect or closed circuits only with a maximum working temperature of 80˚C. The system should be designed in accordance with the British Standard Code of Practice for Water Based Heating Systems in Buildings BS EN 128:2012+A1:2014 and BS EN 12831: 2003. The installation of the system 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 the Building Regulations and Good Practice Guidance for Scotland. Merriott strongly recommend the use of corrosion inhibitor for all applications. Failure to observe these standards may invalidate the manufacturer’s warranty. Single feed indirect cylinders are not recommended as the possibility of aeration due to water interchange may lead to corrosion.
TAPPING TO TAPPING DIMENSIONS:
Tapping dimensions are the nominal length of the emitter.
THERMOSTATIC RADIATOR VALVES:
Direct Fit Kit: 15mm Angled TRV body, the TRV is fitted to the radiator through the 38mm casing knockout via the extension adaptor. Suitable for TBOE connection only. Not suitable for the Vertical LST, or 420mm wide LST.
Universal Close Coupled Kit: 15mm Straight TRV Body, the TRV connects directly to the casing via the 23mm knockout and is connected to the TRV body by capillary tube.
COVER HEIGHT (MM)
COVER LENGTH (MM)
BTU/HR∆T50
WATTS∆T50
DRY WEIGHT (KG)
WATER CONTENT (L)
Sing
le E
mitt
er
572 800 946 277 12.10 1.02
572 1,000 1261 370 15.22 1.36
572 1,200 1576 462 18.45 1.70
572 1,400 1890 554 21.63 2.04
572 1,600 2207 647 24.80 2.38
572 1,800 2521 739 27.94 2.72
572 2,000 2837 832 31.07 3.06
Doub
le E
mitt
er(d
oubl
e fin
)
572 800 1861 545 17.92 2.04
572 1,000 2481 727 22.70 2.72
572 1,200 3102 909 27.50 3.40
572 1,400 3722 1091 32.31 4.08
572 1,600 4342 1273 37.12 4.76
572 1,800 4961 1454 41.80 5.44
572 2,000 5583 1636 46.74 6.12
Sing
le E
mitt
er
672 420 621 182 7.43 0.63
672 600 830 243 11.02 0.84
672 800 1245 365 14.90 1.26
672 1,000 1660 486 18.80 1.68
672 1,200 2074 608 22.69 2.10
672 1,400 2489 730 26.62 2.52
672 1,600 2904 851 30.56 2.94
672 1,800 3319 973 34.53 3.36
672 2,000 3734 1094 38.40 3.78
672 2,200 4149 1216 42.27 4.20
Doub
le E
mitt
er(s
ingl
e fin
)
672 600 1211 355 14.63 1.72
672 800 1815 532 19.96 2.58
672 1,000 2423 710 25.30 3.44
672 1,200 3026 887 30.84 4.30
672 1,400 3630 1064 36.27 5.16
672 1,600 4238 1242 41.74 6.02
672 1,800 4842 1419 47.03 6.88
672 2,000 5449 1597 53.19 7.74
672 2,200 6053 1774 58.38 8.60
Doub
le E
mitt
er(d
oubl
e fin
)
672 420 1198 351 10.61 1.29
672 600 1597 468 16.28 1.72
672 800 2395 702 22.36 2.58
672 1,000 3194 936 28.44 3.44
672 1,200 3992 1170 34.52 4.30
672 1,400 4790 1404 40.61 5.16
672 1,600 5589 1638 46.74 6.02
672 1,800 6387 1872 52.88 6.88
672 2,000 7186 2106 58.94 7.74
672 2,200 7984 2340 65.00 8.60
COVER HEIGHT
SINGLE EMITTER DOUBLE EMITTER (SINGLE FIN)
DOUBLE EMITTER (DOUBLE FIN)
(mm) Exponent ‘n’ Exponent ‘n’ Exponent ‘n’
572 1.3047 - 1.3121
672 1.3027 1.2808 1.3229
872 1.3093 1.2640 1.3444
972 1.3178 - 1.3528
DESCRIPTION
DIRECT FIT TRV KIT
UNIVERSAL CLOSE COUPLED TRV
PROTECTA LST RANGE BY EMITTER TYPE
‘N’ COEFFICIENT VALUES VALVES
06
COVER HEIGHT (MM)
COVER LENGTH (MM)
BTU/HR∆T50
WATTS∆T50
DRY WEIGHT (KG)
WATER CONTENT (L)
Sing
le E
mitt
er872 420 904 265 10.15 0.90
872 600 1205 353 15.32 1.20
872 800 1808 530 20.90 1.80
872 1,000 2410 706 26.50 2.40
872 1,200 3013 883 32.09 3.00
872 1,400 3615 1060 37.73 3.60
872 1,600 4218 1236 43.37 4.20
872 1,800 4820 1413 49.04 4.80
872 2,000 5423 1589 54.62 5.40
872 2,200 6026 1766 60.20 6.00
Doub
le E
mitt
er(s
ingl
e fin
)
872 600 1648 483 20.39 2.48
872 800 2474 725 28.51 3.72
872 1,000 3296 966 35.96 4.96
872 1,200 4122 1208 43.88 6.20
872 1,400 4947 1450 51.46 7.44
872 1,600 5770 1691 60.07 8.68
872 1,800 6595 1933 67.42 9.92
872 2,000 7418 2174 75.03 11.16
872 2,200 8243 2416 83.21 12.40
Doub
le E
mitt
er(d
oubl
e fin
)
872 420 1686 494 14.78 1.86
872 600 2249 659 23.04 2.48
872 800 3374 989 31.88 3.72
872 1,000 4498 1318 40.72 4.96
872 1,200 5623 1648 49.59 6.20
872 1,400 6748 1978 58.44 7.44
872 1,600 7872 2307 67.33 8.68
872 1,800 8997 2637 76.24 9.92
872 2,000 10121 2966 85.06 11.16
872 2,200 11245 3296 93.88 12.40
Sing
le E
mitt
er
972 420 1037 304 11.36 1.05
972 600 1383 405 17.22 1.40
972 800 2074 608 23.53 2.10
972 1,000 2765 810 29.88 2.80
972 1,200 3456 1013 36.21 3.50
972 1,400 4148 1216 42.57 4.20
972 1,600 4839 1418 48.94 4.90
972 1,800 5530 1621 55.34 5.60
972 2,000 6220 1823 61.74 6.30
Doub
le E
mitt
er(d
oubl
e fin
)
972 420 1911 560 16.62 2.10
972 600 2548 747 26.07 2.80
972 800 3822 1120 36.18 4.20
972 1,000 5096 1494 46.32 5.60
972 1,200 6370 1867 56.45 7.00
972 1,400 7644 2240 66.57 8.40
972 1,600 8918 2614 76.73 9.80
972 1,800 10192 2987 86.91 11.20
972 2,000 11468 3361 97.09 12.60
Doub
le
Emitt
er(d
oubl
e fin
) 1772 420 2768 811 55.26 5.90
1772 570 4152 1217 69.89 8.85
1772 720 5537 1623 84.78 11.80
1772 870 6921 2028 99.25 14.75
Doub
le
Emitt
er(d
oubl
e fin
) 2072 420 3054 895 61.08 6.48
2072 570 4579 1342 77.14 9.72
2072 720 6104 1789 90.50 12.96
2072 870 7633 2237 105.87 16.20
PROTECTA LST RANGE BY EMITTER TYPE (CONTINUED)
07
08
PRIMO TYPE 11, 21 AND 22 - PRESSURE DROP (HORIZONTAL)
PRIMO TYPE 22 - PRESSURE DROP (VERTICAL)
Pres
sure
Dro
p (k
Pa)
Flow Rate (L/s)
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
Type 11
Type 21 & 22
0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10
To calculate flowrates in Kg/hr: Output (Watts) / 4.19KJ/Kg/k (Specific heat capacity of water / ˚C) / Temp. Drop (˚C) x 3.6 E.g. 1000W / 4.19 / 10 x 3.6 = 85.92 Kg/hr Useful Conversion Factors: 1 g/s = 3.6 L/hr 1 L/hr = 1 Kg/hr 1 mbar = 100 pa 1mm/watergauge = 9.81 pa
To calculate pressure drop in kPa: Δp= K x (qmd) where Δp = pressure drop (kPa) K = constant from equations below qm = flowrate (Kg/hr) d = index from graph
Horizontal
1. Type 11 2. Type 21 & 22DP = 416.75 x Q2.1018 DP = 209.96 x Q2.3446
Vertical
1. Type 22DP = 210.86 x Q1.9587
DETERMINATION OF PRESSURE DROP IN RADIATORSPr
essu
re D
rop
(kPa
)
Flow Rate (L/s)
Type
22V
Kv =
2.30
5000
4000
3000
2000
1000900800700600500
400
300
200
10050 60 70 80 90 100 200 300 400 500 600
09
MOUNTING DETAILS
NOTE:
It is advisable to leave a further 5mm clearance above any final floor covering to allow for easy fitting and removal.
ENCLOSURE HEIGHT A (MM)
EMITTER HEIGHT B (MM)
572 300
672 400
872 600
972 700
Floor Level
Heat Emi�er
235
135
6S, 6
SX, 6
SP, 9
S &
9SP
5S, 5
SP, 8
S, 8
SX &
8SP
20
Encl
osur
e he
ight
'A'
Emitt
er h
eigh
t 'B'
20
100 100
84.5
SX = 100S = 83
SP = 100SX = 100
S = 83
SP = 10060*60*
LOOKING TOWARDS WALL LST SUPER SIDE ELEVATION
212
9S =
650
5S =
250
6S =
350
8S =
550
107
46
55
114
34
LST SUPER PLUS SIDE ELEVATION
212
9SP
= 65
0
5SP
= 25
06S
P =
350
8SP
= 55
0
157
78
55
114
34 LST EXTRA SIDE ELEVATION
212
6SX
= 35
08S
X =
550
127
62
55
114
34
Floor Level
Heat Emi�er
235
135
6S, 6
SX, 6
SP, 9
S &
9SP
5S, 5
SP, 8
S, 8
SX &
8SP
20
Encl
osur
e he
ight
'A'
Emitt
er h
eigh
t 'B'
20
100 100
84.5
SX = 100S = 83
SP = 100SX = 100
S = 83
SP = 10060*60*
LOOKING TOWARDS WALL LST SUPER SIDE ELEVATION
212
9S =
650
5S =
250
6S =
350
8S =
550
107
46
55
114
34
LST SUPER PLUS SIDE ELEVATION
212
9SP
= 65
0
5SP
= 25
06S
P =
350
8SP
= 55
0
157
78
55
114
34
LST EXTRA SIDE ELEVATION
212
6SX
= 35
08S
X =
550
127
62
55
114
34
TYPE 11 TYPE 21 TYPE 22
*60mm for the 420mm wide version.
10
A
1772
B
60 60
68
1500
76
196D
C
157
A
2072
B
60 60
1800
76
196D
C
A
1772
B
60 60
68
1500
76
196D
C
157
A
2072
B
60 60
1800
76
196D
C
A
1772
B
60 60
68
1500
76
196D
C
157
A
2072
B
60 60
1800
76
196D
C
NB: All measurements are nominal.
BRACKET POSITIONS AND DIMENSIONS
NOTE:
It is advisable to leave a further 5mm clearance above any final floor covering to allow for easy fitting and removal.
CASING WIDTH A (MM)
RADIATOR WIDTH B (MM)
CENTRE CONNECTIONS C (MM)
LEFT-RIGHT CONNECTIONS D (MM)
420 300 50 244
570 450 50 394
720 600 50 544
870 750 50 694
11
NOTES
Merriott UK & Ireland Purmo Group (UK) Ltd, Eastern Avenue, Team Valley, Gateshead, Tyne & Wear, NE11 0PGTel: 0330 0415 472
sales@merriottuk.comsales@merriott.ie
www.merriottuk.com / www.merriott.ie
Follow us on @merriottuk and
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