Heatrae Sadia HOTFLO User manual

H tfl
Unvente point of use hot water
For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - [email protected]

2
H tfl
We evelope the Hotflo range for people
who nee a hot water supply for two to
three basins or sinks.
Flexible siting is a key esign feature that we insiste upon because it means there is no
requirement for a col water cistern. Hotflo can be use with stan ar or mixer taps an
fe from the mains water supply provi es high hot water flow rates.
With the best possible performance, long-term reliability an corrosion-resistance in min ,
our esigners specify high-gra e copper for the Hotflo’s inner container. Using copper for
this key component also means we on’t have to fit a sacrificial ano e – avoi ing the nee
for the hassle an expense of regular inspections an replacement. In a ition, copper is
better than lower gra e materials at withstan ing shock an vibration uring elivery,
installation an maintenance.
The complete confi ence we have in the quality of Hotflo’s esign an materials is proven
by its two year guarantee with on-site service support.
For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - [email protected]

3
• Available in 10 litre (suitable for up to two basins) an
15 litre (suitable for up to three basins) capacities.*
• 2.2kW element rating.
• Replaceable copper inner container with integral
heating element.
• Two year guarantee with on-site service support.
• Externally a justable thermostat from 10°C to 70°C.
• CFC/HCFC free (ODP zero) flame-retar ant expan e polystyrene.
• Element ‘On’ in icator.
• No ano e to inspect or replace.
• Suitable for use with any stan ar tap or mixer.
• Fitte with 1 metre of 3-core cable.
• Comprehensive installation instructions.
• Pressure relief valve supplie with all mo els.
• IPX4 rate .
• Kiwa approve to UK Water Supply Regulations. CE marke .
* Figures are for gui ance only, the Heatrae Sa ia Specification A vice Team shoul be contacte to iscuss
requirements for specific sites. Capacity recommen ations are base on BS 6700.
For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - [email protected]

4
Can expanded water be accommodated in the pipework
without hot water entering any supply pipe to which a
cold water draw-off is connected?
(i.e. at least 2.8m of 15mm pipe for 10 litre unit
and 4.2m for 15 litre unit)
Are there any check valves,
stop valves with loose
jumpers or fittings that
prevent reverse flow?
Is mains pressure
4.1 bar or less?
Is temperature
and pressure
relief valve
specified?
Is temperature
and pressure
relief valve
specified?
Is temperature
and pressure
relief valve
specified?
Is temperature
and pressure
relief valve
specified?
YES
NO
NO
YES
YES
YES NO YES NO YES NO YES NO
NO
Is mains pressure
4.1 bar or less?
YES NO
No packs
required
Diagram 1
Fit pack
U6
Diagram 4
Fit packs
U1 + U5
Diagram 3
Fit packs
U1, U5 + U6
Diagrams
3 + 4
Fit pack
U5
Diagram 2
Fit packs
U5 + U6
Diagrams
2 + 4
Fit packs
U1 + U5
Diagram 3
Fit packs
U1, U5 + U6
Diagrams
3 + 4
Nearest cold
draw-off
Service
valve
Cold mains feed
Expansion
vessel
Check
valve
To drain
(waste)
T piece
Pressure
relief
(expansion)
valve
Hot Cold
Hotflo
10 litre
or 15 litre
heater
2.8 (10 l) or 4.2 (15 l) metres
is required for expansion
in pipework
Nearest cold
draw-off
Service
valve
Cold mains feed
To drain
(waste)
T piece
Pressure
relief
valve
Hot Cold
Hotflo
10 litre
or 15 litre
heater
Temperature and pressure
relief valve
To drain (waste)
Hot Cold
Hotflo
10 litre
or 15 litre
heater
Nearest cold
draw-off
Service
valve
Cold mains feed
Expansion
vessel
Check
valve
To drain
(waste)
T piece
Pressure
relief
(expansion)
valve
Hot Cold
Pressure
reducing
valve
Note:
If pressure reducing valve
is used, expansion down
the mains is not possible.
Hotflo
10 litre
or 15 litre
heater
Diagram 1 For inlet water pressure up to 4.1 bar (60psi).
Diagram 2 For inlet water pressure up to 4.1 bar (60psi)
where expansion own the mains is not possible.
Diagram 3 For inlet water pressure over 4.1 bar (60psi).
Diagram 4 Temperature an pressure relief valve.
For use with iagrams 1-3 above.
A key factor in the selection of accessories is the maximum
incoming water pressure at a particular location. In instances where
this is not known, installers are recommen e to consult the local
water authority for more precise information. When fitting small
unvente water heaters it is important that, where necessary, the
correct accessory packs are fitte to suit local con itions. For
assistance in their selection an fitting, consult the following gui e.
To provi e an a e level of safety, Heatrae Sa ia recommen
the fitting of a temperature an pressure relief valve on heaters of
15 litres an below, although this is not require un er the latest
British Stan ar s.
Accessory selection gui e
For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - [email protected]

5
A full range of accessories are available for installation with Hotflo 10 an 15.
These are supplie as accessory packs.
When installing small unvente water heaters, it is essential that the correct
accessory packs are use . The selection gui es on page 4 in icates the
appropriate pack(s) for ifferent heaters an situations.
If the expansion in the col main is restricte , for example by a stop valve,
check valve or water meter, an accessory pack which inclu es an expansion
vessel must be fitte . See iagrams 2 an 3 on page 4.
A knowle ge of the maximum incoming water pressure is an essential
requirement prior to installation; where this is not known the local Water
Authority shoul be consulte .
Accessories
Pack U1 – C mbined pressure reducing
valve and strainer
The pressure reduc ng valve limits water
pressure to 3.5 bar (50 psi).
The stra ner filters coarse impurities from the
water supply.
Connect on 1/2" BSP female.
Installat on Pack U1 must be installe on the
col inlet si e of the heater an before the
expansion vessel. Where possible, installation
shoul be on the mains si e of the col water
tap raw-off. This will result in balance water
supplies an is particularly important when
mixers are to be use .
Pack U1 must be used w th Pack U5.
Pack U5 – Expansi n vessel and check valve
The expans on vessel when fully charge , will
absorb all expan e water pro uce by the
Hotflo heater uring normal operation.
Connect on 1/2" BSP male; precharge 4.1 bar.
The check valve prevents backflow of hot water
an eliminates any possibility of cross-
contamination between col an hot water.
Connect ons 15mm compression.
Installat on Pack U5 must be fitte on the inlet
si e an in close proximity to the heater as
shown in iagrams 2 an 3 on page 4.
Pack U6 – Temperature and pressure
relief valve
The temperature and pressure rel ef valve is
recommen e by Heatrae Sa ia to give an
a itional level of safety to Hotflo. It is pre-set to
open at 7 bar (101.5 psi) an 90°C. Pack U6 is
the only temperature an pressure relief valve
recommen e for use with Hotflo unvente
heaters.
Connect ons Inlet an outlet 15mm compression
rain 1/2" BSP female.
Installat on Pack U6 valve is connecte to the
outlet connection on top of the Hotflo heater.
See iagram 4 on page 4.
Pack U3 – TMV2
Connect on 15mm compression.
Allows water to be safely store above 60°C.
Precisely controls outlet water temperature
(range from 35°C to 60°C).
Lockable control knob.
Fail-safe shut own.
Incorporates check valves to prevent cross
contamination.
Operating pressure from 0.2 bar to 6.0 bar.
Pack U7 – TMV3
Connect on 15mm compression.
Fully approve un er the TMV3 scheme to the
DO8 specification.
Allows water to be safely store above 60°C.
Precisely controls outlet water temperature
(range from 38°C to 46°C).
Unique a juster key to prevent unauthorise
temperature a justment.
Fail-safe shut own.
Incorporates check valves to prevent cross
contamination.
Operating pressure from 0.2 bar to 5.0 bar.
Thermostat c blend ng valves allow water to be store at high temperatures
an blen e with col water to a preset outlet temperature.
This provi es over-temperature protection, an is i eal for the control of
Legionellae an the extension of system capacities.
Installati n diagram and advice
Heatrae Sa ia offers a e icate specifier a vice line to provi e information
an a vice on specification an installation. This is supporte by a fully-traine
national sales team, all of whom are qualifie to provi e further gui ance
an support locally.
Blended water
to outlets
Pack U3 or U7
blending valve
Outlet taps
Hot outlet Cold mains feed
Balanced
cold water
supply
Water
heater
For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - [email protected]

6
Specificati n
Capac t es
10 an 15 litres.
Rat ng
2.2kW @ 240V, (2kW @ 230V).
Outer cas ng
White plastic top moul ing with steel base an centre
section, finishe in white stove enamel.
Thermal nsulat on
CFC/HCFC free (ODP zero) flame-retar ant expan e
polystyrene.
Water conta ner/ ntegral heat un t
Replaceable heavy gauge copper inner container,
esigne for 6 bar working pressure an type teste
to 20 bar (290 psi), with embe e ro -type element
sheathe in corrosion resistant alloy.
Thermostat
Ro -type externally a justable from 10°C to 70°C.
Safety features
Pressure relief valve set to open at 6 bar.
Resettable over temperature cut-out.
Anode
Not require .
IPX4 rated
Approvals
Kiwa approve to UK water supply regulations.
CE marke . Manufacture in the UK in a BS EN ISO
9001:2000 registere factory.
Installati n
Mechan cal
Must be mounte in the vertical position with inlet /
outlet at the top. Floor or wall-mounte (three screws
/ keyhole slots).
Plumb ng
15mm copper tail en s. Minimum water pressure 0.8
bar (12 psi). For pressures above 4.1 bar (60 psi), packs
U1 an U5 must be use .
NOTE: The pressure relief valve supplie must always
be fitte . See accessory selection gui e on page 4.
Temperature and pressure rel ef valve
Optional Pack U6 – see accessory selection gui e on
page 4.
Safety valve d scharge
The pressure relief (expansion) valve or temperature
& pressure relief valve (if use ) must be plumbe to
ischarge in a safe visible location.
Opt onal thermostat c blend ng valve
Accessory Pack U3 an Pack U7 (see page 5) allows
water to be store at high temperature an blen e
with col to a preset outlet temperature.
Electr cal
The unit must be permanently connecte to the
electrical supply through a ouble-pole linke switch
with minimum breaking capacity of 13 amps.
Must conform to current IEE wiring regulations.
Guarantee
Hotflo carries a full two year transferable on-site
service support guarantee against faulty manufacture
or materials provi e that:
• It has been correctly installe as per the
instructions containe in the instruction manual
an all relevant Co es of Practice an Regulations
in force at the time of installation.
• It has been installe in the UK.
• It has not been mo ifie in any way, other than by
Heatrae Sa ia Heating.
• The amage is not ue to scaling or frost.
• It has only been use for the storage of potable
water.
• It has not been tampere with or been subjecte
to misuse or neglect.
• Within 60 ays of installation the user completes
an returns the certificate supplie along with the
proof of purchase to register the pro uct.
Evi ence of purchase an ate of supply must be
submitte . The unit is not guarantee against
amage ue to frost. The guarantee is transferable.
This guarantee oes not affect your statutory rights.
Full specifications
For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - [email protected]

7
Dimensions an or ering
Ordering guide
Model
Hotflo 10
Hotflo 15
Replacement inner container with integral element
10 litre
15 litre
Rat ng
@ 240V
(kW)
2.2
2.2
2.2
2.2
Product
code
95:050:148
95:050:149
95:608:916
95:608:917
Access ries rdering guide
Model
Accessory pack U1 See page 5 for etails
Accessory pack U3 See page 5 for etails
Accessory pack U5 See page 5 for etails
Accessory pack U6 See page 5 for etails
Accessory pack U7 See page 5 for etails
Product
code
95:970:352
95:970:354
95:970:356
95:970:359
95:970:360
Dimensi ns
Model
Hotflo 10
Hotflo 15
Capac ty
(l tre)
10
15
Rat ng
@240
(kW)
2.2
2.2
A
(mm)
500
656
B
(mm)
252
252
C
(mm)
267
267
D
(mm)
457
613
E
(mm)
360
516
We ght
empty full
(kg) (kg)
6.5 16.5
8.4 23.4
Fixing centres
of wall screws
(unit hangs on
keyhole slots)
190
C
62.5 50
A
B
171
59
D
E
FRONT
TOP
SIDE
For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - [email protected]

This pro uct is printe on 50% post consumer recycle
paper. That is paper that has been previously use eg.
newspapers an magazines. This pro uct is printe
using vegetable base inks which are non toxic. Please
recycle this pro uct once you have finishe with it.
Contact
Spec f cat on
T: 01603 420220 F: 01603 420229
E: specifier@heatraesa ia.com
After Sales Serv ce
T: 0844 871 1535 F: 0844 871 1528
E: heatraesa [email protected]
Web www.heatraesa ia.com
Nat onal serv ce network
Heatrae Sa ia pro ucts are inherently reliable
an are esigne to meet the eman ing nee s
of all users.
A nationwi e network of experience engineers
is available to provi e fast an efficient on-site
service support.
In a ition, spare parts for the complete range
of pro ucts are rea ily available through a wi e
variety of stockists.
Heatrae Sa ia Heating Hurricane Way Norwich Norfolk NR6 6EA
Heatrae Sa ia Heating may intro uce mo ifications to their pro ucts
from time to time. Consequently, the etails given in this brochure
are subject to alteration without notice.
95 900 907 Issue 1 © Heatrae Sa ia Heating. 2009.
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