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
3.14
INSTALLATION
Water Regulations
Building Regulations
General Guidance
Cold Water Supply
Siting and Fixing
Overall Dimensions
Connection of Mains Supply
Cold Water Combination Valve
Connection to Services
Secondary Return
Discharge Pipework
Electrical Connection
Electrical Diagrams
Page 5
Page 5
Page 5
Page 5
Page 5
Page 6
Page 7
Page 9
Page 12
Page 12
Page 13
Page 14
Page 17
Page 19
4.
COMMISSIONING
Page 24
5.
5.1
5.2
5.3
5.4
5.5
5.6
MAINTENANCE
ProTech Anti-corrosion System
Thermal Cut-out(s)
Immersion Heater(s)
Unvented Controls
Thermostats
Maintenance
Page 26
Page 26
Page 26
Page 26
Page 26
Page 27
Page 27
6.
FAULT FINDING
Page 29
7.
TECHNICAL INFORMATION
Page 30
8.
BENCHMARK COMMISSIONING CHECKLIST
Page 32
9.
BENCHMARK SERVICE RECORD
Page 33
1.
The Benchmark
Scheme
Benchmark places responsibilities on both manufacturers and installers.
The purpose is to ensure that customers are provided with the correct
equipment for their needs, that is installed, commissioned and serviced in
accordance with the manufacturer’s instructions by competent persons and
that it meets the requirements of the appropriate Building Regulations. The
Benchmark Checklist can be used to demonstrate compliance with Building
Regulations and should be provided to the customer for future reference.
Installers are required to carry out installation, commissioning and servicing
work in accordance with the Benchmark Code of Practice which is available
from the Heatinmg and Hotwater Industry Council who manage and promote
the Scheme. Visit www.centralheating.co.uk for more information.
2
1.1
2.
HWA Charter Statement
The HWA Charter Statement requires that all members adhere to the
following:
·
To supply fit for purpose products clearly and honestly described
·
To supply products that meet or exceed appropriate standards and
building and water regulations
·
To provide pre and post technical support
·
To provide clear and concise warranty details to customers
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. The manual is to be left with the end user.
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.
When installing and servicing the cylinder, Ariston Thermo UK Ltd
recommend the use of protective clothing i.e. gloves.
2.1
GuArAntee
The Ariston range of unvented cylinders come with varying guarantees
depending on the model of cylinder. The guarantee periods offered with
each model of cylinder are as follows:
ST Range
-
10 Years tank
2 Years electrical components
Classico HE Range
-
5 Years tank
2 Years electrical components
Aquabravo Range
-
25 Years tank
2 Years electrical components
Note: The guarantee is subject to the cylinder being installed and serviced
annually by a competent person as per the maintenance instructions in
Section 5.6 of this manual. For units with the ProTech anti-corrosion device
it must be ensured that this is connected and operating correctly (green LED
only).
2.2
How tHe AppliAnce
works
The immersion heater(s) are controlled through a thermostat which senses
the water temperature. The operating temperature can be pre-set by
adjusting the spindle in the head of the thermostat. In addition to the
thermostat there is a thermal cut-out incorporated if the thermostat fails and
the water temperature rises too high. Once the cut-out operates it can only
be re-set manually after the fault has been rectified.
Indirect models have dual thermal controls. In addition to the above there is a
separate cylinder thermostat and thermal cut-out for controlling each indirect
circuit. Again the thermal cut-out operates if the cylinder thermostat fails, by
disconnecting the live feed (call for hot water) from the programmer.
ITI/ITD/ITSI models have a stainless steel tank and therefore need no
protection against corrosion.
STD/STI models have an enamelled steel tank and therefore are supplied
with magnesium anodes to prevent corrosion of the cylinder tank. It is
imperative that the top anode is checked during the annual service and if
found to be corroded both anodes should be replaced. Failure to do so will
invalidate the warranty of the tank.
3
The Wall-hung (ST) units utilise the ProTech anti-corrosion system
(electronic anode). This prevents an electrolytic reaction between the tank
and dissimilar metals. The ProTech system shows if it is operating correctly
(green LED) or incorrectly (red LED). In the event that the red LED lights
(even with the green light still showing), it is imperative that a service agent
is contacted immediately as continued use with the ProTech system in this
state could invalidate the warranty on the tank.
Note: Do not use a water softner on products with the ProTech anti-corrosion
system.
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. A
cold water combination valve is also provided in two pieces, loose jointed for
ease of installation. These comprise a combined line strainer/pressure
reducing valve and core non-return valve/expansion relief valve.
2.3
Delivery
The Ariston range of Unvented Cylinders are available in the following
options:
The Wall-hung ProTech cylinder (100 litre model), which is supplied as
follows;
One box containing;
1) The cylinder with factory fitted temperature & pressure relief valve,
immersion heater and thermostat with thermal cut-out.
One box containing;
1) Unvented control pack (expansion vessel, 2 piece cold water combination
valve and tundish), instructions for installation, servicing and use
including the Benchmark Commissioning Checklist.
The STD and STI floor standing range (125, 150, 200, 300 and 500 litre
models) and the ITD and ITI floor standing range (80*, 130, 150, 215, 255*
and 305 litre models) are supplied as follows;
One box containing;
1) The cylinder with factory fitted temperature & pressure relief valve,
immersion heater(s) and thermostat(s) with thermal cut-out(s), cylinder
thermostat with thermal cut-out (indirect only).
2) Unvented control pack (expansion vessel, 2 piece cold water combination
valve and tundish), motorised valve (indirect only, non-high temperature),
expansion vessel mounting bracket, instructions for installation, servicing
and use including the Benchmark Commissioning Checklist.
The ITSI twin coil floor standing range (215, 255 and 305 litre models) are
supplied with the following;
One box containing;
1) The Cylinder with factory fitted temperature & pressure relief valve,
immersion heater and thermostat with thermal cut-out, cylinder
thermostats with thermal cut-outs.
2) Unvented control pack (expansion vessel, 2 piece cold water combination
valve and tundish), 1 x motorised valves (non-high temperature),
expansion vessel mounting bracket, instructions for installation, servicing
and use including the Benchmark Commissioning Checklist.
* ITI only
4
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. The installation of an unvented hot water storage
cylinder is classified as a “Controlled Service” and Regulation G3 applies
(England & Wales. For Scotland, NI and ROI, local Building Regulations
apply). To meet the requirements of the Regulation, installation of an
unvented system should be undertaken by a “competent installer”.
All installations of unvented hot water storage systems having a capacity of
more than 15 litres should be notified to the relevant Local Authority by
means of building notice or by the submission of full plans. It is important to
note that it is a criminal offense to install an unvented hot water storage
system without notifying the Local Authority. The installation of the unvented
cylinder and hot water system must comply with BS 6700 and the HSE
Legionella Code of Practice.
3.3
GenerAl GuiDAnce
Current guidance notes do not cover the connection of a solar thermal
circuit to an unvented storage vessel (cylinder). However, if guidance is
sought for compliance with current regulations the fundamental principle is
to provide a failsafe means of shutting off the solar input to the heat
exchanger if the cylinder temperature should rise above the set temperature
of the cylinder’s energy cut out. (See Note 1).
As with all unvented hot water systems, notification of intention to install
should be given to your local building control.
Option A. A non self resetting mechanical shut-off should be installed on
the solar primary flow to the cylinder. The mechanical shut-off should be
suitable for use with a solar primary circuit (i.e. high temperature and glycol
resistant). The mechanical shut-off should be integrated electrically with the
cylinder energy cut out/s and if necessary the solar circuit temperature
control, please refer to the solar controller manufacturer for further
information.
Option B. Where the solar controller and hydraulic system demonstrate that
by no lesser means the requirement in Option A is satisfied by other means;
certification by an approvals body is required to demonstrate that in the
event of the stored water going over temperature, the heat input to the
cylinder is isolated by physical means and is non self resetting.
These systems should be clearly identified with reference to the approvals
body. (See Note 2)
Note 1 :Whilst most solar cylinders use a coil type heat exchanger other
options such as external plate to plate devices , external annulars or ‘tank in
tank’ systems may be used but the same control options always apply.
Note 2 :Current approved bodies include the British Board of Agrement
(BBA) , WRc-NSF Limited, or KIWA
3.4
colD wAter supply
The strainer prevents any debris entering the other controls. The pressure
reducer ensures the correct operation of the expansion vessel, and prevents
any damage to the control valves through too great a pressure.
The non-return valve ensures the water expansion is forced into the
expansion vessel and prevents contamination of the mains cold water
supply. The expansion relief valve will discharge expanded water to the
discharge tundish if the expansion vessel fails.
It is important to ensure that the cold water main is capable of supplying the
increased demand which will be imposed on it. Hot and cold water are both
drawn off the same source of supply. Remember, there will not be a storage
tank to help compensate for variations in the demand on the system.
5
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.
The cylinder may be installed in any convenient position. As it is connected
to the mains cold water supply. Consideration must be given to allow ease of
access and space for removal of components for maintenance purposes.
Additionally, do not install the unit in premises which may be subject to
freezing.
Ensure that the floor load bearing strength is adequate to take the weight of
the cylinder when full of water (see tABle 1). e.g. Do not install the cylinder
on floors made of chipboard or other flooring where the mechanical strength
is compromised when damp.
The ST100 ProTech models are wall mounted. All other models are free
standing.
All units must be installed in the verticAl position.
For maintenance purposes leave at least 500 mm free space in front of the
unit, for access.
note: On Indirect models, ensure a balancing valve is fitted on the return
pipework from the cylinder coil.
iMportAnt: In the event that the installation of this cylinder wil require a third
sensor to be fitted (i.e. Solar) please also refer to Section 3.3 General
Guidance options A and B (page 5) of this manual.
For further technical advice, please contact the Ariston Technical Advice
Line on 0870 241 8180.
6
Storage
Classico - STI 125 HE-2
Classico - STI 150 HE-2
Classico - STI 210 HE-2
Classico - STI 300 HE-2
Classico - STI 500 HE-2
inDirect rAnGe
Classico - STD 125 HE-2
Classico - STD 150 HE-2
Classico - STD 210 HE-2
Classico - STD 300 HE-2
Classico - STD 500 HE-2
Floor Standing
125 l
150 l
200 l
300 l
500 l
125 l
150 l
200 l
300 l
500 l
3/4” Male
3/4” Male
3/4” Male
1” Male
1" Male
3/4” Male
3/4” Male
3/4” Male
1" Male
1” Male
3/4”
0.35
0.5
0.5
0.5
1.3
-
-
-
350
450
650
880
-
550
A
370
370
370
370
370
370
370
370
370
370
175
B
1045
1205
1520
1821
1947
1045
1205
1520
1821
1947
700
C
280
360
360
360
700
-
230
D
-
790
948
1264
1552
1656
575
E
Dimensions in mm
555
555
555
655
550
555
555
555
655
751
560
F
G
-
H
-
I
-
590
590
590
690
-
590
590
590
690
-
250
250
250
250
250
-
-
-
-
-
-
J
Weight
When Full
Kg
tABle 1
Classico HE STI 500-2
168
190
245
425
582
168
190
245
425
582
129
100 l
Coil
Surface
m2
Classico HE STD 500-2
ST 100 ProTech
Inlet Outlet
Units Pipe Size
Classico HE STI-2
125-150-210-300
141
Capacity
Classico HE STD-2
125-150-210-300
Direct rAnGe
Wall-hung
Model
ST ProTech100
3.7
overAll DiMensions
7
8
twin coil rAnGe
AQUABRAVO - ITI 80
AQUABRAVO - ITI 130
AQUABRAVO - ITI 150
AQUABRAVO - ITI 215
AQUABRAVO - ITI 255
AQUABRAVO - ITI 305
inDirect rAnGe
AQUABRAVO - ITD 130
AQUABRAVO - ITD 150
AQUABRAVO - ITD 215
AQUABRAVO - ITD 305
Direct rAnGe
AQUABRAVO - ITSI 215 (top/bottom)
AQUABRAVO - ITSI 255 (top/bottom)
AQUABRAVO - ITSI 305 (top/bottom)
Kg
Model
Capacity
215l
255l
305l
80l
105l
150l
215l
255l
305l
130 l
150 l
215 l
305 l
Storage
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Ø 22mm
Inlet Outlet
Units Pipe Size
Surface
AQUABRAVO ITD
130-155-215-255-305
0.75 / 1.1
0.75 / 1.1
0.75 / 1.1
0.54
0.54
0.54
0.75
0.75
0.75
-
Coil
1485
1753
2029
-
-
A
213
213
213
-
-
B
268
268
268
711
1003
1131
1530
1792
2074
1003
1131
1530
2074
C
580
580
580
689
981
1109
1508
1770
2052
263
263
263
476
768
896
1295
1563
1839
768
896
1295
1839
E
Dimensions in mm
981
1109
1508
2052
D
AQUABRAVO ITI
80-130-150-215-255-305
346
348
348
109
193
193
263
263
263
-
F
711
711
711
125
149
149
172
172
172
-
G
531
531
531
-
353
431
802
1307
H
1116
1029
1167
-
-
I
AQUABRAVO ITSI
215-255-305
270
315
370
99
152
176
252
303
362
154
181
253
360
Kg
Weight
When Full
tABle 1
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. ALL PIPEWORK MUST BE FLUSHED TO
AVOID DAMAGE TO THE CONTROL VALVES.
Please refer to FiGs. 3.1 - 3.7 for a suggested installation layout.
Draining taps must be located in acessible postions to permit the draining of
the whole cylinder. The taps must be a minimal size of at least 15mm
nominal size (preferably 22mm), and manufactured in accordance with BS
2879:1980.
When installing the expansion vessel Ariston recommend it be connected
directly to the combination valve (see Figs 3.9 - 3.10).
iMportAnt note:When installing the expansion vessel, Do not install the expansion vessel
vertically as air can become trapped in the expansion vessel resulting in
noise.
Do not use a flexible hose to connect the expansion vessel. This must be
hard piped in order to avoid vibration.
See below for acceptable installation practices.
✘
✔
✘
✔
9
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. 3.4
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. 3.8
11
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.
A balancing port is supplied on the 22mm and 28mm valves allowing
balanced cold water supply to the rest of the building giving constant results
for mixer and shower valves. If the facility is not needed a plug is supplied.
Refer to FiG. 3.9 and FiG. 3.10
note!
tHere
sHoulD Be no otHer vAlves FitteD Between tHe cylinDer AnD tHe
expAnsion vAlve.
EXPANSION RELIEF VALVE
(SET AT 6 BAR)
SERVICEABLE 3/4” PRESSURE REDUCING
CARTRIDGE AND LINE STRAINER
(SET AT 3.5 BAR)
15mm EXPANSION RELIEF
OUTLET TO TUNDISH
22mm COLD
MAINS IN
22mm TO CYLINDER
3/4” B.S.P. CONNECTION
FOR EXPANSION VESSEL
22mm BALANCED COLD WATER TAKE OFF
WITH NON-RETURN VALVE
FiG. 3.9
12
For ST 100, Aquabravo ITD, ITI, ITSI,
Classico HE STD and STI models up to 300l
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. Short runs of
15mm pipe may be used to connect basins and sinks.
3.11
seconDAry return
On selected floor-standing models a secondary return may be fitted (consult
the drawings on pages 10 and 11 and the label on the face of the unit for
presence/location). A non-return valve (not supplied) must be fitted to
prevent back flow and a bronze pump will be needed in conjunction with a
pipe thermostat and timer to circulate the hot water (both not supplied).
Where a secondary return is not included on the cylinder, it is possible to
utilise the mains inlet (see diagram below).
note: an extra expansion vessel may be required where the additional
volume of the secondary return exceeds the capacity of the expansion
vessel supplied.
13
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. The
discharge pipe from the tundish should of metal and terminate in a safe
place where there is no risk to persons in the vicinity of the discharge.
3) The pipe diameter must be at least one pipe size larger than the nominal
outlet size of the safety device unless it's total equivalent hydraulic
resistance exceeds that of a straight pipe 9m long.
i.e. Discharge pipes between 9m and 18m equivalent resistance length
should be at least 2 sizes larger than the nominal outlet size of the safety
device. Between 18m and 27m at least 3 larger, and so on.
Bends must be taken into account in calculating the flow resistance.
See FiG. 3.11 and tABle 2.
4) The discharge pipe must have a vertical section of pipe at least 300mm
in length below the tundish, before any elbows or bends in the pipework.
5) The discharge pipe must be installed with a continuous fall and should be
at least one pipe diameter clear of the wall where it terminates.
6) The discharge should be visible at both the tundish and the final point of
discharge, but where this is not possible or practically difficult; there
should be clear visibility at one or other of these locations. Examples of
acceptance are:
i)
Ideally below a fixed grating and above the water seal in a trapped
gully.
ii) Downward discharges at a low level; i.e. up to 100mm above
external surfaces such as car parks, hard standings, grassed
areas etc. These are acceptable providing that where children
may play or otherwise come into contact with discharges, a wire
cage or similar guard is positioned to prevent contact, whilst
maintaining visibility.
iii) Discharges at high level; Onto a roof capable of withstanding high
temperature discharges of water 3m from any plastic guttering
systems that would collect such a discharge (tundish visible).
iv) Where a single pipe serves a number of discharges, such as in
blocks of flats, i.e. into a metal hopper and metal down pipe with
the end of the discharge pipe clearly visible (tundish visible or
not). the number served should be limited to not more than 6
systems so that any installation can be traced reasonably easily.
The single common discharge pipe should be at least one pipe
size large than the largest individual discharge pipe to be
connected. If unvented hot water storage systems are installed
where discharges from safety devices may not be apparent i.e. in
dwellings occupied by the blind, infirm or disabled people,
consideration should be given to the installation of an
electronically operated device to warn when discharge takes
place.
Note: The discharge will consist of scalding water and steam. Asphalt,
roofing felt and non-metallic rainwater goods may be damaged by
such discharges.
14
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.
Valve outlet size
Minimum size of
discharge pipe D1*
Minimum size of
discharge pipe D2*
from tundish
Maximum
resistance allowed,
expressed as a
length of pipe (i.e.
no elbow or bends)
Resistance created
by each elbow or
bend
G 1/2
15mm
G 3/4
22mm
G1
28mm
22mm
28mm
35mm
28mm
35mm
42mm
35mm
42mm
54mm
Up to 9m
Up to 18m
Up to 27m
Up to 9m
Up to 18m
Up to 27m
Up to 9m
Up to 18m
Up to 27m
0.8m
1.0m
1.4m
1.0m
1.4m
1.7m
1.4m
1.7m
2.3m
15
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 5.8m is less than the actual
length of 7m therefore calculate the next largest size.
Maximum resistance allowed for a straight length of 28mm pipe (D2) from
G1⁄2 temperature & pressure valve equates to: 18m. Subtract the resistance
for 4 no. 28mm elbow at 1.0m each = 4m. Therefore the maximum permitted
length equates to: 14m
As the actual length is 7m, a 28mm (D2) copper pipe will be satisfactory.
wArninGs
The outlet from the temperature & pressure relief valve must not be used for
any other purpose. This also applies to the expansion relief valve. No other
valve is to be fitted between the cold water combination valve and the
cylinder.
The temperature & pressure relief valve must not be removed in any
circumstances. Any of the above will totally invalidate the guarantee.
Discharge pipe D2 (FIG. 3.11) must be in metal and must not be discharged
into a soil stack made of plastic or any other non-metallic material incapable
of withstanding discharge water above 95ºC.
16
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. The
electronic circuit creates a difference in potential between the hot water tank
and the titanium electrode, thereby guaranteeing optimum protection of the
tank and preventing corrosion.
Note: Do not use a water softner on products with the ProTech anticorrosion system.
To ensure the proper operation of the protection system, it Must Be
perMAnently connecteD to A FuseD non-switcHeD 240v, 3A
electricity supply even in the event of shut-down of the system. To
prevent risk to the appliance’s lifespan when disconnecting the protection
system for an extended period of time, it is necessary to drain the appliance
beforehand.
In addition to the 240V network, the electronic circuit is also connected to
the tank, which is to be protected, and to the titanium protection electrode,
inForMAtion For tHe enD user
Proper operation of the protection system is shown by a continuous green
L.E.D, indicating that the circuits terminals are being supplied with electricity.
In the event of failure, a red LED indicates that there is a short-circuit
between the electrode and the cylinder tank, that one of the leads (tank or
electrode) is disconnected or that there is no water in the cylinder.
Your appliance is thus properly protected when the green L.E.D. is
illuminated and the red LED is off. Should this not be the case or should the
green and red LED light simultaneously, please contact your installer.
Direct systeMs
A mains supply of 240V, 3kW (13 amps) is required. Heat resistant cable,
round 3 or 4 core 2.5mm2 (to BS6141 table 8) must be used to connect the
electrical supply through the Economy 7 time control switch using either
system ‘A’ or ‘B’ as illustrated in Fig. 3.12.
17
systeM A
FiG. 3.12
18
systeM B
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).
Single Element
THERMAL
CUT-OUT
THERMOSTAT
ELEMENT
3 kW
L1
N
240V~
FiG. 3.13
THERMAL
CUT-OUT
THERMOSTAT
L1
DAY ELEMENT
3 kW 240V~
N
THERMAL
CUT-OUT
THERMOSTAT
L2
NIGHT ELEMENT
3 kW 240V~
ECONOMY 7
N
FiG. 3.14
19
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).
Earths omitted for clarity
Neutral
L3
L2
L1
4
2
3
1
Neutrals to be connected
using amp tag connectors
Live wires supplied in kit
Switched Live
5
Terminals
6
SINGLE PHASE WIRING INSTRUCTIONS FOR
6KW IMMERSION HEATER
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.
21
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. 3.17
23
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.
In addition to the thermostat the thermal cut-out will switch power off to the
element should the thermostat malfunction, causing an excessive rise in
water temperature. The thermal cut-out can be reset manually after the fault
has been corrected.
inDirect systeMs
For models up to 300 litres a mains supply of 240V, 3kW (13 amps) will be
required for the direct immersion heater. heat resistant cable, round 3 core
2.5mm2 (to BS6141) must be used. For High Capacity 500 litre models
consult the wiring diagram on page 20 of this manual.
For indirect controls a 240V, 3 amp supply is required.
The cables must be clamped in position (as previously stated) and the
control thermostat should be set at 60°C for the reasons above. In addition
to the thermostat there is a thermal cut-out should the thermostat fail. Refer
to FiG. 3.13.
wArninG : tHe AppliAnce Must Be eArtHeD.
The earth continuity conductor of the electrical installation must be
effectively connected to all exposed parts of other appliances and services
in the room in which the water heater is to be installed and conform to the
I.E.E. wiring regulations.
note: Do not switch on the immersion heater or fire the boiler until the
cylinder is full of water.
Check for obvious signs of damage to the cylinder and controls, and also
that the controls fitted correspond with the references quoted in these
instructions.
Ensure that the drain cock at the base of the appliance is closed before
commencing.
1) ProTech Models Only. Ensure that the ProTech anti-corrosion system is
connected to the electrical supply;
2) Ensure that the line strainer (situated in the pressure reducing valve) is
clear of installation debris and clean if necessary;
3) Check that the pressure in the expansion vessel is the same as the
incoming water pressure;
4) Open all outlet taps;
5) Turn on mains water supply and allow the water heater to fill;
6) Ensure that the hot water system is flushed in accordance with BS 6700;
7) Close taps in turn after having purged the system of air;
8) Check for leaks around the controls and immersion heaters and again
after the unit has heated up;
9) Check that no water is passing to waste through the relief valves;
24
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. Check operation of thermostat(s);
14) INDIRECT UNITS. Fill the indirect (primary) circuit following the boiler
instructions. Switch on the boiler, ensure that the programmer is in the
domestic hot water position. Allow unit to heat up and check operation of
indirect thermostat and motorised valve(s);
15) Check the temperature of the hot water at the nearest outlet and record
in the Benchmark Commissioning Checklist;
16) Demonstrate operation to user, including operation of temperature &
pressure relief valve and what to do if it operates;
17) Give this manual along with the completed Benchmark Commissioning
Checklist to the user to retain for future reference and make the
customer aware that periodic checks of the equipment are essential for
safety.
25
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.
After each service is finished, please ensure that the service record sheet
(found towards the back of the manual) is completed by the engineer.
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).
NOTE: While there is no direct inspection access point on the cylinder, it
may be possible to use the immersion heater boss(es) for this purpose.
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. is NOT on:
- Check to see that the circuits electric plug is connected (if not,
connect);
- Check to see that the P.C.B, is supplied with electricity (if not, replace
the supply cable);
- Check to see that 230 V electricity is supplied (if not, ensure that 230 V
is supplied);
- If all these checks fail to locate the problem, replace the electronic
circuit (installer).
2) The red L.E.D. is on:
- Check to see that the tank is filled with water (if not, fill it before
carrying out the following checks);
- Check to see that the clip-on circuit connector is in the proper position
(if not, position correctly);
- Check to see that the electrodes connection lead is property connected
(to check this, gently pull on it) (if not, replace the electrode);
- Check to see that the connection lead to the tank is properly connected
to the tank (if not, connect properly); .
- Check to see that the two leads from the clip-on circuit connector are
not damaged, stripped, etc. (if so, replace the electrode);
- If all these checks fail to locate the problem, replace the electronic
circuit.
note: To replace the P.C.B, there is no need to drain the cylinder;
1) Disconnect the two supply cables from the P.C.B. to the supply terminal;
2) Disconnect the clip-on circuit connector and polarising slot which
connects the circuit to the tank and the electrode;
3) Disconnect the P.C.B. from its supporting plate (plastic clips in the 4
corners) and;
4) Replace the defective circuit with a new one, then re-install in reverse
order to the above.
5.2
tHerMAl cut-out(s)
If the thermal cut-out has operated the cause must be found before resetting
(see section 6).
5.3
iMMersion HeAter(s)
Should the immersion heater(s) become scaled, we would recommend that
the immersion heaters be replaced, a scale reducer be fitted on the cold
water supply to the cylinder and that the thermostat is set below 60OC to
prevent further scale formation.
5.4
unventeD controls
Check controls as per the following:
1) Line strainer - with the water supply turned off remove screen from
strainer and clean off any debris;
2) Expansion vessel - with the water supply turned off and taps open, check
26
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);
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 terminal fitting e.g. tap.
5.5
tHerMostAts
Ensure that all thermostats are adjusted for the correct temperature setting,
this should be between 60 and 65°C.
5.6
MAintenAnce proceDure
To ensure efficient and safe operation, and to maintain the warranty, it is
necesary to ensure the appliance is serviced annually by a competent
person.
After each service is finished, please ensure that the service record sheet
(found towards the back of the manual) is completed by the engineer.
After servicing, preliminary electrical system checks must be carried out to
ensure electrical safety (i.e. polarity, earth continuity, resistance to earth and
short circuit).
IMPORTANT NOTE:
TO
To drain the cylinder it is necessary to proceed as follows:
AVOID POTENTIAL IMPLOSION OF THE CYLINDER
WHILST DRAINING, ALL TAPS AND THE
T&P VALVE
MUST BE OPEN TO ALLOW AIR INTO THE CYLINDER
DURING THE DRAINING PROCESS.
1) Close the mains supply service valve;
2) Open hot water taps;
3) Attach a hose and open the drain cock and allow the cylinder to empty,
taking care of hot water contained in the cylinder.
(Pumping the water out will completely drain the cylinder)
Magnesium Anodes (stD and sti models only)
No longer than every 12 months, the installer should check the magnesium
anti-corrosion anodes (consult the label on the face of the unit for the correct
location). Assessment of the condition of the bottom anode (where fitted)
can be made by judging the condition of the top anode.
Removal of anodes;
1)
2)
3)
4)
Close the mains supply service valve;
Open hot water taps;
Attach a hose and open the drain cock and allow the cylinder to empty;
The anodes are removed by unscrewing;
EXAMINE THE ANODES AND IF THE DIAMETER IS LESS THAN 10mm
replace both anodes.
The use of an approved P.T.F.E. sealing tape is required to ensure watertight
connection for anodes.
thermal cut-out(s)
If the thermal cut-out has operated the cause must be found before
resetting.
immersion Heater(s)
Should the immersion heater be scaled, we would recommend it be
replaced.
27
unvented controls(s)
Check controls as per the following:
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);
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 terminal fitting i.e. tap.
thermostats
Ensure that all thermostats adjusted for the correct temperature setting, this
should be between 60 and 65°C.
After servicing, complete Benchmark Service Record located on page 35 of
this manual.
note!
wHere
tHere is A possiBility oF scAle ForMinG , it is recoMMenDeD tHe
tHerMostAt Be set to Below
incoMinG MAins supply
28
60oc
AnD A scAle reDucer Be FitteD on tHe
6.
FAuLT FINdING
FAult
possiBle cAuses
reMeDy
1) Mains cold water
supply shut off
Check and open Isolating
and/or stop valve. Check
water, Local Water Authority
2) Line strainer
blocked
Turn off mains water supply,
remove line strainer and
clean
3) Cold Water
Combination valve
fitted incorrectly
Check direction of flow
arrows on valve, refit in
correct position if necessary
1) Low mains water
pressure
Check pressure, consult
Local Water Authority if
necessary
2) Line strainer
partially blocked
Turn off mains water supply,
remove line strainer and
clean
3) Size of service
pipe too small
Increase to size stated on
page 9
1) Direct immersion
heater is not
switched on
Check immersion heater,
switch on if necessary
2) Direct thermal
cut-out has
operated
Test thermostat operation
and wiring, if faulty,
correct/replace. Reset cut-out
3) Boiler programmer
set to central
heating only
(Indirect models)
Check switch on domestic
hot water if necessary
4) Boiler is not
functioning
(Indirect models)
Check boiler operation, if
fault suspected consult
manufacturer's instructions
5) Indirect thermal
cut-out has
operated
Test thermostat operation
and wiring, if faulty,
correct/replace. Reset
cut-out
6) Motorised valve
jammed or not
wired correctly
(Indirect models)
Check wiring and operation of
motorised valve correct/
replace as necessary
DiscHArGe FroM
pressure/
teMperAture
relieF vAlve
1) Pressure above 7
bar, failure of
pressure reducing
valve. Temperature
above 90ºC failure
of thermal control
Shut down boiler or immersion
heater. Check pressure
reducing valve and thermal
controls. Replace if
necessary
DiscHArGe FroM
expAnsion
vAlve
1) Continually.
Pressure reducing
valve faulty
Check pressure from valve.
Replace if over 3.5 bar
2) When heater is heating.
Faulty expansion
vessel or lost charge
Check charge of vessel. Recharge vessel to 3.5 bar or match
incoming mains pressure
replace if necessary
3) Back feed of high mains
pressure via mixer.
Service / replace mixer
1) Expansion Vessel fitted
vertically.
Ensure vessel is fitted horizontally or
connection at top.
2) Pipework not secure
Clip pipework
3) Jumpers on taps loose
Replace tap jumpers
4) Flexible hose connecting
expansion vessel
Remove flexible hose and hard pipe.
no Hot wAter
Flow
reDuceD Flow
rAte
wAter FroM
Hot tAps
is colD
wAter HAMMer
29
148
75.3
12
7
3.5
3.5
6
7/95
3.5
240
3
(1)
3.5
85
22.6
0.9
11.1
0.5
22
18
1.52
58
0
<5
196
79.5
12
7
3.5
3.5
6
7/95
3.5
240
3
(1)
3.5
85
22.6
0.9
11.9
0.5
38
32
1.82
63
0
<5
300
453
86.4 80.8
12
12
7
7
3.5
3.5
3.5
3.5
6
6
7/95 7/95
3.5
3.5
240 240/400
3
6
(1)
(2)
3.5
3.5
85
85
22.6
30
0.9
0.9
13.6 18
0.5
1.3
61
66
51
55
1.56 1.94
103
146
0
0
<5
<5
Classico - STI 500 HE
Classico - STI 300 HE
462,5 123
- 79
12
12
7
7
3.5
3.5
3.5
3.5
6
6
7/95 7/95
3.5
3.5
240/400 240
3
6
(1)
(2)
4:02
2:57
3.5
3.5
85
19.4
0.9
6.2
0.35
51
43
1.3
49
130
0
0
<5
<5
Classico - STI 210 HE
148 196 300
12
12
12
7
7
7
3.5
3.5 3.5
3.5
3.5 3.5
6
6
6
7/95 7/95 7/95
3.5
3.5 3.5
240 240 240
3+3 3+3 3+3
(1)
(1)
(1)
3:07 4:00 6:15
2:16 2:55 4:34
3.5
3.5 3.5
65
49
94
0
0
0
<5
<5
<5
Classico - STI 150 HE
126
12
7
3.5
3.5
6
7/95
3.5
240
3+3
(1)
2:26
1:46
3.5
42
0
<5
Classico - STI 125 HE
l
100
%
bar
12
bar
7
bar
3.5
bar
3.5
bar
6
bar/°C 7/95
bar
3.5
V
240
kW
3
(1)
h:min 1:56
h:min 1:12
bar
3.5
ºC
mbar
m3/h
kW
m2
min
min
Kg
41
0
<5
Classico - STD 500 HE
Classico - STD 300 HE
Classico - STD 210 HE
Classico - STD 150 HE
Nominal Capacity **
Hot water capacity **
Maximum Water Supply Pressure*
Maximum Design 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
Direct Reheat Time (Single element) (100%)
Direct Reheat Time (Single element) (70%)
Maximum Primary Pressure
Maximum Operating Temperature (heating fluid)
Pressure Drop Through Primary Coil
Primary Flow Rate
Heat Exchanger Performance (Flow rate 0.9m3/h)
Coil Surface Area
Reheat Time **
Indirect Reheat Time (70%)
Heat Loss (kWh in 24h) EN 60379
Nett Weight
Ozone Depletion Potential (ODP)
Global Warming Potential (GWP)
Classico - STD 125 HE
TEChNICAL dATA
ST Protech 100
7.
Note: The above cylinders were tested in accordance with EN12897:2006
* To pressure reducing valve
** Tested in accordance with EN12897:2006
(1) Single Phase
(2) Single Phase/Three phase
The power consumption data in the table and the other information given in the Product Data Sheet
(Annex A attached to the product) are defined in relation to EU Directives 812/2013 and 814/2013.
30
AQUABRAVO ITI 255
146
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
1.52
30
0
<5
208
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
1.73
43
0
<5
253
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
2.12
49
0
<5
207
298
245
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
3.5
240
240
240
3
3
3
(1)
(1)
(1)
7:19
4:56
3.5
3.5
3.5
85
85
85
tba
tba
238
tba
tba
0.9
26.1 27.0/20.0 27.0/20.0
0.89 1.1/0.75 1.1/0.75
29
24
49
20
17
34
1.94
1.74
2.47
60
53
65
0
0
0
<5
<5
<5
AQUABRAVO ITSI 305
AQUABRAVO ITI 215
125
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
1.43
28
0
<5
AQUABRAVO ITSI 255
AQUABRAVO ITI 150
77
12
7
3.5
3.5
6
7/90
3.5
240
3
(1)
1:33
1:21
3.5
85
189
0.9
17.7
0.5
14
10
1.24
22
0
<5
AQUABRAVO ITSI 215
AQUABRAVO ITI 130
298
12
7
3.5
3.5
6
7/90
3.5
240
3+3
(1)
7:19
4:56
3.5
60
0
<5
AQUABRAVO ITI 305
AQUABRAVO ITI 80
AQUABRAVO ITD 215
146 209
12
12
7
7
3.5 3.5
3.5 3.5
6
6
7/90 7/90
3.5 3.5
240 240
3+3 3+3
(1)
(1)
3:19 4:51
2:24 3:17
3.5 3.5
30
41
0
0
<5
<5
AQUABRAVO ITD 305
l
126
bar
12
bar
7
bar
3.5
bar
3.5
bar
6
bar/°C 7/90
bar
3.5
V
240
kW
3+3
(1)
h:min 2:46
h:min 2:03
bar
3.5
ºC
mbar
m3/h
kW
m2
min
min
Kg
27
0
<5
AQUABRAVO ITD 150
AQUABRAVO ITD 130
Nominal Capacity **
Maximum Water Supply Pressure*
Maximum Design 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
Direct Reheat Time (Single element) (100%)
Direct Reheat Time (Single element) (70%)
Maximum Primary Pressure
Maximum Operating Temperature (heating fluid)
Pressure Drop Through Primary Coil
Primary Flow Rate
Heat Exchanger Performance (Flow rate 0.9m3/h)
Coil Surface Area
Reheat Time **
Indirect Reheat Time (70%)
Heat Loss (kWh in 24h) EN 60379
Nett Weight
Ozone Depletion Potential (ODP)
Global Warming Potential (GWP)
291
12
7
3.5
3.5
6
7/90
3.5
240
3
(1)
3.5
85
tba
tba
27.0/20.0
1.1/0.75
34
24
2.14
66
0
<5
Note: The above cylinders were tested in accordance with EN12897
* To pressure reducing valve
** Tested in accordance with EN12897:2006
(1) Single Phase
The power consumption data in the table and the other information given in the Product Data Sheet
(Annex A attached to the product) are defined in relation to EU Directives 812/2013 and 814/2013.
31
8.
BENChMARK COMMISSIONING ChECKLIST
MAINS PRESSURE HOT WATER STORAGE SYSTEM COMMISSIONING CHECKLIST
This Commissioning Checklist is to be completed in full by the competent person who commissioned the storage system as a means of
demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.
Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.
Customer name:
Telephone number:
Address:
Cylinder Make and Model
Cylinder Serial Number
Commissioned by (PRINT NAME):
Registered Operative ID Number
Company name:
Telephone number:
Company address:
Commissioning date:
To be completed by the customer on receipt of a Building Regulations Compliance Certificate*:
Building Regulations Notification Number (if applicable)
ALL SYSTEMS PRIMARY SETTINGS (indirect heating only)
Is the primary circuit a sealed or open vented system?
Sealed
Open
What is the maximum primary flow temperature?
°C
ALL SYSTEMS
What is the incoming static cold water pressure at the inlet to the system?
bar
Has a strainer been cleaned of installation debris (if fitted)?
Yes
No
Is the installation in a hard water area (above 200ppm)?
Yes
No
If yes, has a water scale reducer been fitted?
Yes
No
What type of scale reducer has been fitted?
What is the hot water thermostat set temperature?
°C
What is the maximum hot water flow rate at set thermostat temperature (measured at high flow outlet)?
I/min
Time and temperature controls have been fitted in compliance with Part L of the Building Regulations?
Type of control system (if applicable)
Yes
Y Plan
Is the cylinder solar (or other renewable) compatible?
S Plan
Other
Yes
What is the hot water temperature at the nearest outlet?
No
°C
All appropriate pipes have been insulated up to 1 metre or the point where they become concealed
Yes
UNVENTED SYSTEMS ONLY
Where is the pressure reducing valve situated (if fitted)?
What is the pressure reducing valve setting?
Has a combined temperature and pressure relief valve and expansion valve been fitted and discharge tested?
bar
Yes
The tundish and discharge pipework have been connected and terminated to Part G of the Building Regulations
No
Yes
Are all energy sources fitted with a cut out device?
Yes
No
Has the expansion vessel or internal air space been checked?
Yes
No
THERMAL STORES ONLY
What store temperature is achievable?
°C
What is the maximum hot water temperature?
°C
ALL INSTALLATIONS
The hot water system complies with the appropriate Building Regulations
Yes
The system has been installed and commissioned in accordance with the manufacturer’s instructions
Yes
The system controls have been demonstrated to and understood by the customer
Yes
The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer
Yes
Commissioning Engineer’s Signature
Customer’s Signature
(To confirm satisfactory demonstration and receipt of manufacturer’s literature)
*All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a
Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer.
© Heating and Hotwater Industry Council (HHIC)
32
www.centralheating.co.uk
9.
BENChMARK SERVICE RECORd
It is recommended that your hot water system is serviced regularly and that the appropriate Service Record is completed.
Service Provider
Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.
SERVICE 01
Date:
SERVICE 02
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Signature
SERVICE 03
Date:
SERVICE 04
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Signature
SERVICE 05
Date:
SERVICE 06
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Signature
SERVICE 07
Date:
SERVICE 08
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Signature
SERVICE 09
Date:
SERVICE 10
Engineer name:
Engineer name:
Company name:
Company name:
Telephone No:
Telephone No:
Comments:
Comments:
Signature
Signature
Date:
Date:
Date:
Date:
Date:
33
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.com
technical service Hot line:
(0870) 241 8180
customer service Help Desk: (0870) 600 9888
Unvented Cylinder Manual 06/2017 - 420010309607
Ariston thermo Group, luce - France
In the interests of our customers, Ariston Thermo UK Ltd is continually developing these products to improve both performance and design. We therefore
reserve the right to change specification without prior notice. This manual is accurate at the date of printing. Consumer statutory rights are not affected.
Download PDF