Instructions for Installation, Servicing and Use Unvented Hot Water Storage Cylinders Country of destination: GB/IE
TABLE OF CONTENTS 1. THE BENCHMARK SCHEME Page 2 2. 2.1 2,2 2.3 GENERAL INFORMATION Guarantee How the Appliance Works Delivery Page 3 Page 3 Page 3 Page 4 3. 3.1 3.2 3.3 3.4 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.
2. GENERAL INFORMATION This manual is an integral and essential part of the product. It should be kept with the appliance so that it can be consulted by the user and/or authorised personnel. Please read carefully the instructions and notices about the appliance contained in this manual, as they provide important information regarding the safe installation, use and maintenance of the cylinder. Failure to do so may invalidate the guarantee.
The factory fitted temperature & pressure relief valve at the top of the cylinder is a safety device to back-up the thermostat(s) and thermal cutout(s). It works by sensing an excess in water temperature or pressure and releasing the hot water into a discharge tundish and drain. The cylinder will only work in the vertical position. The inlet pipe needs to deliver cold water to the bottom of the tank. When water is heated it expands. To accommodate this increase in volume an expansion vessel is provided.
3. INSTALLATION The appliance should be installed in accordance with the Domestic Heating Compliance Guide. 3.1 wAter reGulAtions These regulations (byelaws in Scotland) ensure a good supply of wholesome water, and that only approved materials, pipes and fittings are used to convey water. 3.2 BuilDinG reGulAtions These are a statutory document and take priority over all other regulations and recommendations.
3.6 sitinG AnD FixinG A minimum dynamic pressure of 1.5 bar or 20 litres per minute is required for satisfactory operation. 85% of UK dwellings have a mains pressure above 2.0 bar. note: tHe MAins wAter supply Must not exceeD 16 BAr. The cylinder should be left packed until it is time to install. When unpacking the appliance follow the guidelines within the packaging and take care not to damage the temperature and pressure relief valve, thermostats and immersion heaters.
Storage Classico HE STI 125 Classico HE STI 150 Classico HE STI 210 Classico HE STI 300 Classico HE STI 500 inDirect rAnGe Classico HE STD 125 Classico HE STD 150 Classico HE STD 210 Classico HE STD 300 Classico HE STD 500 Floor Standing 125 l 150 l 200 l 300 l 500 l 25 l 150 l 200 l 300 l 500 l 3/4” Male 3/4” Male 3/4” Male 3/4” Male 1" Male 3/4” Male 3/4” Male 3/4” Male 3/4" Male 1” Male 3/4” 0.75 0.9 0.9 0.9 1.
215l 255l 305l twin coil rAnGe AQUABRAVO ITSI 215 (top/bottom) AQUABRAVO ITSI 255 (top/bottom) AQUABRAVO ITSI 305 (top/bottom) 130 l 150 l 215 l 305 l 80l 105l 150l 215l 255l 305l inDirect rAnGe AQUABRAVO ITD 130 AQUABRAVO ITD 150 AQUABRAVO ITD 215 AQUABRAVO ITD 305 Direct rAnGe Storage AQUABRAVO ITI 80 AQUABRAVO ITI 130 AQUABRAVO ITI 150 AQUABRAVO ITI 215 AQUABRAVO ITI 255 AQUABRAVO ITI 305 Kg Model Capacity Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22
3.8 connection oF MAins wAter supply For floor standing models: On the front of the unit there is a label to identify the connection ports. Please check this before making any connection to the unit. For units up to 300 litres it is recommended that all mains cold water supply pipe work is a minimum of 22mm. For 500 litre models the supply should be 28mm. An isolating valve should be installed between the cold water supply and the cylinder for servicing.
st protecH 100 stD 125-150-210-300 Direct FiG. 3.1 sti 125-150-210-300 inDirect FiG. 3.3 10 FiG. 3.2 stD 500 Direct NOTE: FLOW AND RETURN PIPES MAY BE CONNECTED IN REVERSE TO THAT SHOWN IN THE DIAGRAMS FOR INDIRECT CYLINDERS. FiG. 3.
itD 130-150-215-305 Direct iti 80-130-150-215-255-305 inDirect FiG. 3.5 sti 500 inDirect FiG. 3.7 FiG. 3.6 itsi 215-255-305 twin coil NOTE: FLOW AND RETURN PIPES MAY BE CONNECTED IN REVERSE TO THAT SHOWN IN THE DIAGRAMS FOR INDIRECT CYLINDERS. FiG. 3.
3.9 colD wAter coMBinAtion vAlve The cold water combination valve may be fitted in close proximity to the cylinder, or alternatively, it may be separated to allow the pressure reducing valve where the mains supply enters the property allowing for balanced cold water throughout the whole property whilst the 6 bar safety valve is fitted in close proximity to the cylinder.
SERVICEABLE 1” PRESSURE REDUCING CARTRIDGE AND LINE STRAINER (SET AT 3.5 BAR) EXPANSION RELIEF VALVE (SET AT 6 BAR) 28mm COLD MAINS IN 28mm TO CYLINDER 3/4” B.S.P. CONNECTION FOR EXPANSION VESSEL FiG. 3.10 1” BALANCED COLD WATER TAKE OFF WITH NON-RETURN VALVE For Classico HE STD and STI 500 models 3.10 connection to services It is recommended that a 22mm pipe run should supply the outlets throughout the building, especially to baths and showers.
3.12 DiscHArGe pipework note! tHe sAFety relieF vAlves Must not Be useD For Any otHer purpose 1) Discharge pipes from the temperature & pressure relief and expansion relief valve may be joined together. 2) The tundish must be vertical and fitted within 600mm of the temperature & pressure relief valve and must be located with the cylinder but away from any electrical devices. The tundish must also be in a position visible to the occupants, and positioned away from any electrical devices.
Temperature & pressure relief valve Metal discharge pipe (D1) from temperature & pressure relief valve. to tundish. Tundish 600mm Max. 300mm Min. Discharge below fixed grating. (see page 10 for alternative points of discharge). Metal discharge pipe (D2) from tundish with continuous fall. See Table 2 and worked example. Fixed grating FiG. 3.11 Trapped gulley tABle 2. Sizing of copper discharge pipe “D2” for common temperature valve outlet sizes.
workeD exAMple The example below is for a G1⁄2 temperature & pressure relief valve with a discharge pipe (D2) having 4 no. elbows and length of 7m from the tundish to the point of discharge. From tABle 2; Maximum resistance allowed for a straight length of 22mm copper discharge pipe (D2) from G1⁄2 temperature & pressure valve is 9m. Subtract the resistance for 4 no. 22mm elbows at 0.8m each = 3.2m. Therefore the maximum permitted length equates to: 5.8m. As 5.
3.13 electricAl connection The electrical installation must be in accordance with the current I.E.E. wiring regulations. protecH electronic Anti-corrosion systeM (st 100 models only) i MportAnt : The ProTech anti-corrosion system MUST be permanently connected to a fused non-switched 240V electricity supply. The ProTech system, an exclusive solution, is an electronic anti-corrosion protection system which ensures maximum longevity of the appliance.
systeM A FiG. 3.
3.14 electricAl DiAGrAMs Should the Economy 7 system not to be used, a separate 13 amp supply to each element will be required through a double pole fused isolating switch having a contact gap of at least 3mm on each pole.The immersion heater shall be installed with 85°C rubber insulated HOFR-sheathed flexible cable complying with Table 8 of BS 6141: 1991. Make the connection(s) to the immersion heater(s) as per FiG. 3.13 and FiG. 3.14. For High Capacity 500 litre models see FiG. 3.15 (page 20).
Live Supply from common fused spur FiG. 3.15 IMpORTANT: WHEN WIRING THE 500 LITRE CYLINDERS IMMERSION HEATER ENSURE THAT A SUITABLE HEAT RESISTANT CABLE RATED ABOVE THE PROTECTIVE DEVICE IS USED (I.E. 6MM FOR 32AMP).
CLAS HE both zones timed from integral timer GENUS Range program time zones 1 & 2 on digital display NOTE: Enable Parameter 223 and change from 0 to 1 Wiring diagram for two 2 Port Valves with Ariston GENUS HE, CLAS HE and CLAS boilers with 2 zone clip in fitted. FiG. 3.16 note: witH reGArDs to tHe AQuABrAvo itsi cylinDers, For More DetAileD wirinG instructions pleAse contAct tHe tecHnicAl DepArtMent on 0870 241 8180.
Wiring diagram for two 2 Port Valves FiG. 3.16 note: witH reGArDs to tHe priMo itsi cylinDers, For More DetAileD wirinG instructions pleAse contAct tHe tecHnicAl DepArtMent on 22 0870 241 8180.
Wiring diagram for a 3 Port Valve & 2 Port Valve FiG. 3.
4. COMMISSIONING The thermostat(s) on the immersion heater(s) should be adjusted to trip at 60-65°C. This is the ideal temperature to prolong element life in hard water areas. Scale on the sheath builds up more rapidly at temperatures above this causing the element to overheat and premature failure can occur. Higher temperatures without additional controls would result in scalding. In known hard water areas the use of a scale inhibitor is also recommended.
10) Test the operation of the temperature & pressure relief and expansion valves by lifting/turning the manually operated test lever/cap and observing that water flows through freely and safely to waste; 11) Check that the discharge pipe is plumbed so that it falls continuously and that no taps, valves or other shut off devices are installed in the pipe; 12) Check that all thermostats are set at approximately 60-65°C; 13) DIRECT UNITS. Switch on immersion heater(s) and allow unit to heat up.
5. MAINTENANCE To ensure efficient and safe operation, and to maintain the warranty, it is necessary to ensure the appliance is serviced annually by a competent person. Before servicing, preliminary electrical system checks must be carried out to ensure electrical safety (i.e. polarity, earth continuity, resistance to earth and short circuit). 5.1 protecH Anti-corrosion systeM wArninG: SWITCH OFF THE POWER SUPPLY BEFORE WORKING ON THE APPLIANCE. trouble-shooting: 1) The green L.E.D.
closes after testing); 4) Expansion relief valve - check manually by turning the test knob (ensure valve closes after testing); 5) Discharge pipes (D1) - from both temperature & pressure relief and expansion relief valve for obstructions; 6) Tundish & discharge pipe (D2) - open either valve gradually to produce a full bore discharge into tundish and D2 without any back pressure; 7) Pressure reducing valve - check that the correct outlet pressure is being maintained by recording the pressure at an in-line te
1) Line strainer - with the water supply turned off remove screen from strainer and clean of any detritus; 2) Expansion vessel - with the water supply turned off and taps open, check expansion vessel pressure and top up as necessary; 3) Temperature & pressure relief valve - with the water supply turned on, check manually by lifting the test lever/turning the test knob (ensure valve closes after testing); 4) Expansion relief valve - check manually by turning the test knob (ensure valve closes after testing);
6. FAu LT FINd ING FAult possiBle cAuses reMeDy 1) Mains cold water supply shut off Check and open Isolating and/or stop valve.
Maximum Water Supply Pressure* Operating Pressure Expansion Vessel Charge Pressure Expansion Relief Valve Setting Pressure & Temperature Relief Valve Setting Pressure Reducing Valve Set Pressure Electrical Supply Immersion Heater Rating Immersion Heater Type Maximum Primary Pressure Heat Exchanger Performance Coil Surface Area Heat Loss (kWh in 24h) @ 60°C Nett Weight Ozone Depletion Potential (ODP) Global Warming Potential (GWP) bar bar bar bar bar/°C bar V kW bar kW m2 Kg 12 3.5 3.5 6 7/90 3.
AQUABRAVO ITI 215 AQUABRAVO ITI 255 124.6 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 2:46 2:03 3.5 85 176 0.9 17.28 0.67 25 18 1.40 28 0 <5 146.2 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 3:19 2:24 3.5 85 186 0.9 17.46 0.78 30 22 1.68 30 0 <5 209.5 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 4:51 3:17 3.5 85 238 0.9 24.0 0.89 35 24 1.93 43 0 <5 253.3 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 5:56 3:39 3.5 85 262 0.9 24.59 0.89 41 31 2.26 49 0 <5 296.4 12 12 12 7 7 7 3.5 3.5 3.5 3.5 3.5 3.5 6 6 6 7/90 7/90 7/90 3.5 3.5 3.
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Manufacturer: Commercial subsidiary: Ariston thermo uk ltd Ariston Building Hughenden Avenue High Wycombe Bucks. HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Internet: www.ariston.co.uk E-mail: info.uk@aristonthermo.
