Ariston STD 125 DIRECT Technical Information

Instructions for Installation,Servicing and UseUnvented Hot Water StorageCylindersCountry of destination: GB/IE

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11%&A $&& $&&% A&) !& 

For ST 100, Aquabravo ITD, ITI, ITSI, Classico HE STD and STI models up to 300l22mm COLDMAINS IN22mm COLDMAINS IN22mm TO WATER HEATER3/4” B.S.

13For Classico HE STD andSTI 500 models28mm COLDMAINS IN28mm TOCYLINDERSERVICEABLE 1” PRESSURE REDUCINGCARTRIDGE AND LINE STRAINER(SET AT 3.5 BAR)3/4”

14 !&& %&+ $ ((% '%& !&  '% !$  + !&$ "'$"!%1) Discharge pipes from the

600mm Max.300mmMin.Temperature & pressurerelief valveMetal discharge pipe (D1) fromtemperature & pressure relief valve.to tundish.Metal discha

16)!$*"The example below is for a G1⁄2 temperature & pressure relief valve with adischarge pipe (D2) having 4 no. elbows and length

17 &$! &! The electrical installation must be in accordance with the current I.E.E.wiring regulations."$!&

18%+%& %+%&

19THERMALCUT-OUTL2NL1NTHERMOSTATDAY ELEMENT3 kW 240V~NIGHT ELEMENT3 kW 240V~ECONOMY 7THERMALCUT-OUTTHERMOSTATTHERMALCUT-OUTL1NTHERMOSTATELEMENT3

2TABLE OF CONTENTS1. THE BENCHMARK SCHEME Page 22. GENERAL INFORMATION Page 32.1 Guarantee Page 32,2 How the Appliance Works Page 32.3 Delivery Page 4

20L1L2L3Live Supply from common fused spurNeutralSwitched Live23456TerminalsNeutrals to be connected using amp tag connectorsLive wires supplied in ki

21 !&)& $$% &! & #'$(! &%A+ $%!$ !$ & )$   %&$'&! % "% ! &am

22 !&)& $$% &! & "$! &%A+ $%!$!$ & )$   %&$'&! % "% ! &

23Wiring diagram for a 3 Port Valve & 2 Port Valve

244. COMMISSIONINGThe thermostat(s) on the immersion heater(s) should be adjusted to trip at60-65°C. This is the ideal temperature to prolong element

2510) Test the operation of the temperature & pressure relief and expansionvalves by lifting/turning the manually operated test lever/c

26 &$ '&!'&% $%! &$% ' ( & ! &$!%5. MAINTENANCETo ensure efficient and saf

27closes after testing);4) Expansion relief valve - check manually by turning the test knob (ensurevalve closes after testing);5) Discharge pipes (D

281) Line strainer - with the water supply turned off remove screen fromstrainer and clean of any detritus;2) Expansion vessel - with the water s

'& "!%%'%% $+1) Mains cold water Check and open Isolatingsupply shut off and/or stop valve. Checkwater, Local Water

3This manual is an integral and essential part of the product. It should be keptwith the appliance so that it can be consulted by the user and/or auth

30* Indirectly heated** 3kW Immersion heater*** 6kW Immersion heaterST Protech 100 1 hr 56 mins 72 minsClassico STI 125 HE * 19 mins

31* To pressure reducing valve ** Tested in accordance with EN12897:2006 (1) Single Phase151.11273.53.567/903.52403+3(1)3:192:243.5-------1.68300<5

328. BENChMARK COMMISSIONING ChECKLIST

339. BENChMARK SERVICE RECORd

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Manufacturer: ;4<=98&30;79A;9>:>.0;,8.0Commercial subsidiary: ;4<=98&30;79'=/Ariston BuildingHughenden Avenu

4The factory fitted temperature & pressure relief valve at the top of thecylinder is a safety device to back-up the thermostat(s) and t

5  $ ' 3. INSTALLATION )&$ $'&! % '  $'&! %The appliance should be installed in

6A minimum dynamic pressure of 1.5 bar or 20 litres per minute is requiredfor satisfactory operation. 85% of UK dwellings have a mains pressureabov

7$&$ Wall-hungST 100 ProTechFloor StandingClassico HE STD 125Classico HE STD 150Classico HE STD 210Classico HE STD 300Classico HE STD 500

Model Storage Units Pipe Size Coil Dimensions in mm WeightSurface When FullCapacityKg Inlet Outlet A B C D E F G H I Kg$&$ AQUABRAVO ITD

9 ! &! !  %)&$ %'""+For floor standing models:On the front of the unit there is a label to identify the