Mini 3 18 to 39kW - CMS
Mini 3 18 to 39kW - CMS
Mini 3 18 to 39kW - CMS
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Hoval <strong>Mini</strong>-3 heating<br />
and combination boilers<br />
for oil or gas firing from<br />
<strong>18</strong> <strong>to</strong> 39 kW
Don’t just rely on your woolies <strong>to</strong> keep you warm this<br />
Winter. Allow Hoval <strong>to</strong> bring some comfort in<strong>to</strong> your life.<br />
Whatever your heating and hot water requirements, Hoval<br />
can satisfy your needs. For your large domestic heating<br />
and hot water demand, there is the<br />
Hoval <strong>Mini</strong>-3.
Suitable for small commercial and large domestic installations.<br />
The <strong>Mini</strong>-3 and <strong>Mini</strong>-3H boilers provide the quality<br />
and reliability associated with larger installations.<br />
The Hoval pressure jet program<br />
The <strong>Mini</strong>-3 and <strong>Mini</strong>-3H boilers are the entry boiler for the<br />
Hoval pressure jet program. The smaller version of the<br />
Uno-3 boilers, the <strong>Mini</strong>-3 and <strong>Mini</strong>-3H offers an output<br />
range from <strong>18</strong>kW through <strong>to</strong> <strong>39kW</strong>.<br />
Available also as a combination boiler the <strong>Mini</strong>-3H can<br />
be supplied <strong>to</strong> provide domestic hot water (DHW) up <strong>to</strong><br />
300 litres s<strong>to</strong>rage.<br />
Bizonal Technique<br />
The design of the <strong>Mini</strong>-3 and <strong>Mini</strong>-3H incorporates the<br />
“Bizonal Technique” which increases efficiency and<br />
life expectancy. The lower operating temperatures<br />
associated with high efficiency boilers present a<br />
higher risk of corrosion. The <strong>Mini</strong>-3 and <strong>Mini</strong>-3H<br />
boilers have been designed with this in mind. Areas<br />
within the boiler, where combustion gases are close<br />
<strong>to</strong> the dew point are protected by the Bizonal Technique.<br />
This directs flow of the low temperature return<br />
water away from these areas. This is accomplished<br />
by a series of strategically positioned baffle plates<br />
which restrict the natural flow of water through the<br />
boiler and encourages the water <strong>to</strong> flow through the<br />
boiler in a way that prohibits corrossion.
The Hoval <strong>Mini</strong>-3 and <strong>Mini</strong>-3H boiler can be fired using either<br />
oil or gas. With <strong>to</strong>p or rear water and flue connections there<br />
is a solution <strong>to</strong> meet your installation requirements.<br />
Dry back type flue box<br />
permits lower operating<br />
temperatures<br />
3rd pass through the<br />
Thermolytic heat<br />
exchanger with regula<strong>to</strong>rs<br />
2nd pass through baffle<br />
plate<br />
1st pass in<strong>to</strong> combustion<br />
chamber<br />
<strong>Mini</strong>-3H (rear flue) <strong>Mini</strong>-3 (<strong>to</strong>p flue)<br />
Where required TopTronic<br />
controllers can be fitted.<br />
Burner acoustic cover<br />
Double hinge door with<br />
swivel arrangement for<br />
ease of servicing (even<br />
with low NOx burners with<br />
longer blast tubes).<br />
Burners suitable for natural<br />
gas, oil and LPG firing.<br />
<strong>Mini</strong>-3 & <strong>Mini</strong>-3H heating only boilers<br />
The <strong>Mini</strong>-3 boiler with vertical flue outlet and <strong>Mini</strong>-3H boiler with horiziontal flue outlet<br />
couples high efficiency with low NOx emissions, and as such satisfies current demands<br />
for economy and environmental protection. These dual goals are achieved with<br />
the special design which incorporates the unique Hoval thermolytic heat exchanger.<br />
<strong>Mini</strong>-3 boilers are available as heating only units or with a calorifier as a combination unit,<br />
with ratings between 16 - 39 kW and DHW up <strong>to</strong> 670 litres per hour.<br />
Construction<br />
Heating only and combination boilers are constructed of high quality steel plate, with<br />
80mm thick insulation around the boiler body and 50mm thick around the flue gas collec<strong>to</strong>r<br />
and over the boiler door.<br />
All models are encased within red and orange steel panels, matching the Hoval range of<br />
boilers and calorifiers.<br />
Low temperature operation<br />
The <strong>Mini</strong>-3 boiler has a dry backed flue gas collec<strong>to</strong>r so that the boiler can safely<br />
operate with boiler flow temperatures as low as 38 o C, and return temperatures of<br />
30 o C without the risk of condensation within the boiler.<br />
Three pass design<br />
With the <strong>Mini</strong>-3 boiler the combustion gases fire <strong>to</strong> the back of the combustion chamber<br />
and then upwards through the second pass where it reverses through a baffle <strong>to</strong>wards<br />
the front of the boiler. The hot gases then flow through the thermolytic heat<br />
exchanger which is the third pass before leaving the heat exchanger through the flue<br />
box at the back.<br />
Thermolytic heat exchanger<br />
The unique thermolytic design of the third pass makes fine tuning of the flue gas<br />
temperature possible.<br />
In general, a 20K reduction in flue gas temperature will give a 1.5% gross efficiency<br />
increase.
Double-hinged door for reduced plantroom space and easy maintenance<br />
Instead of a normally hinged door, the <strong>Mini</strong>-3 has a proven double hinged door allowing<br />
problem-free extraction and swivelling out of long burner heads, typically associated<br />
with low NOx burners.<br />
Opening and swivelling out is also no longer hindered by adjacent walls or other burners<br />
in a multi-boiler system. (See space requirments below).<br />
The opening direction of the double hinged door can be easily reversed on the boilers.<br />
Regular boiler cleaning will contribute <strong>to</strong>wards the lowest possible energy consumption.<br />
The <strong>Mini</strong>-3 double-hinged door enables the boiler <strong>to</strong> be opened for cleaning without the<br />
need for the burner <strong>to</strong> be dismantled.<br />
A further advantage of the double-hinged door is that, in contrast <strong>to</strong> traditionally hinged<br />
doors, it makes uniformly even contact on all sides, thereby achieving absolute gas<br />
tightness. It is therefore not necessary <strong>to</strong> adjust the hinges <strong>to</strong> give a gas tight seal.<br />
Space requirements<br />
The boiler should be sited on a flat, level and fireproof floor / base. A plinth is not<br />
necessary as the boiler sits on a channel base.<br />
Wherever possible space should be left around the boiler <strong>to</strong> enable all parts <strong>to</strong> be examined<br />
and the cubicle casings <strong>to</strong> be fitted or removed easily.<br />
Back clearance is required for the system connections, flue connections and access <strong>to</strong><br />
the cleaning door.<br />
Front clearance is required <strong>to</strong> swivel the boiler door, including burner, by 90 o , (standard <strong>to</strong><br />
the right, optional <strong>to</strong> left).<br />
Space requirements <strong>to</strong> right when right hinged 80mm (plus burner length).<br />
Space requirement at front where possible should allow for extraction of retarders etc.<br />
(nominally 500mm from boiler door).<br />
Controls<br />
The standard control panel incorporates:<br />
n flow thermometer<br />
n temperature control thermostat<br />
n on/off switch<br />
n high temperature limit thermostat<br />
with manual reset<br />
n excess temperature indica<strong>to</strong>r<br />
(The panel can be <strong>to</strong>p or side mounted depending on the boiler model selected) For<br />
combination boilers additional temperature control and temperature indication is included.<br />
Each control panel is equipped for two stage burner operation for matching<br />
seasonal load requirements on low fire rating option. TopTronic controller(s), volt free<br />
contacts and an hours run meter can be supplied as optional items. If TopTronic controller(s)<br />
are required the control panel, as shown, is utilised.<br />
TopTronic control<br />
The TopTronic control system brings<br />
<strong>to</strong>gether Hoval’s considerable experience in the field of heating & hot water control,<br />
<strong>to</strong>gether with a high performance micro-processor controls package. The result is a<br />
simple user-friendly operating platform that controls individual heating and hot water<br />
systems and optimises energy conservation.<br />
Databus connections<br />
Optional TopTronic controllers can be fitted directly in<strong>to</strong> the boiler control panel (as shown)<br />
enabling control of up <strong>to</strong> two variable temperature, one constant temperature and one<br />
calorifier primary circuits. These are linked <strong>to</strong>gether by databus connections. Please<br />
refer <strong>to</strong> our separate TopTronic leaflet for further information.<br />
Electrical supply<br />
230V 50 Hz single phase mains supply should be connected <strong>to</strong> the boiler control panel via<br />
a fused isola<strong>to</strong>r.<br />
Delivery and assembly<br />
The <strong>Mini</strong>-3 & <strong>Mini</strong>-3H heating only boilers are supplied fully assembled and cased. Delivered<br />
shrink wrapped on a pallet for ease of handling on site. Control panels & burners are<br />
supplied separate for fitting by the installer.<br />
The <strong>Mini</strong>-3H combination units are supplied with boiler, burner, calorifier, pump & pipework<br />
and control panel separate for site assembly.
The Hoval <strong>Mini</strong>-3H boiler / calorifier combination is a compact<br />
solution for your heating and hot water requirements.<br />
Dry back type flue box<br />
permits lower operating<br />
temperatures<br />
3rd pass through the<br />
Thermolytic heat<br />
exchanger with regula<strong>to</strong>rs<br />
2nd pass through baffle<br />
plate<br />
1st pass in<strong>to</strong> combustion<br />
chamber<br />
Enamelled calorifier shell<br />
Calorifier primary coil<br />
<strong>Mini</strong>-3H combination boiler<br />
The <strong>Mini</strong>-3 can be supplied as a combination boiler with an integral temperature controlled calorifier.<br />
This is available as either a 150, 200, or 300 litre unit.<br />
The enamel lined steel calorifiers are fitted with a built-in primary heating coil, providing rapid recovery of DHW, and insulated with<br />
50mm polyurethane plastic foam within a steel Hoval red casing.<br />
Optional electric immersion heater<br />
A 3kW electrical immersion heater is available as an optional extra.<br />
Where required TopTronic<br />
controllers can be fitted.<br />
Burner acoustic cover<br />
Double hinge door with<br />
swivel arrangement for<br />
ease of servicing, even<br />
with low NOx burners with<br />
longer blast tubes.<br />
Burners suitable for natural<br />
gas, oil and LPG firing.<br />
Magnesium sacrificial anode<br />
Calorifier immersion sensor<br />
Calorifier insulation<br />
Note: This version is offered in the UK as<br />
a special. The standard combination unit<br />
has the calorifier on <strong>to</strong>p of boiler. Please<br />
see dimensional details.<br />
Mg anode protection<br />
The DHW side of the calorifier is protected from corrosion by a Magnesium (Mg) sacrificial anode which is supplied on all combination<br />
units.
Hoval <strong>Mini</strong>-3 and <strong>Mini</strong>-3H<br />
Technical Data<br />
<strong>Mini</strong>-3 & <strong>Mini</strong>-3H<br />
Model (<strong>18</strong>) (25) (32) (36) (39)<br />
• Nominal thermal output kW <strong>18</strong> 25 32 36 39<br />
• Thermal output range kW 16-<strong>18</strong> 20-25 26-32 33-36 33-39<br />
• Maximum burner capacity kW 19.5 27.1 34.6 38.8 42<br />
• Maximum operating temperature 1 °C 90 90 90 90 90<br />
• <strong>Mini</strong>mum operating temperature °C 482 /383 482 /383 482 /383 482 /383 482 /383<br />
• <strong>Mini</strong>mum return temperature °C 382 /303 382 /303 382 /303 382 /303 382 /303<br />
• <strong>Mini</strong>mum flue gas temperature at outlet °C 110/130 110/130 110/130 110/130 110/130<br />
• Temperature limit (STB) °C 110 110 110 110 110<br />
• Max operating pressure / test pressure bar 3 /4,5 3 /4,5 3 /4,5 3 /4,5 3 /4,5<br />
• Regula<strong>to</strong>rs for 160°C flue gas temperature 1xR5/290 2xR5+ 3xR5+ 3xR5+ 3xR5+<br />
1xR3/290 2xR2/290 2xR2/290 2xR2/290<br />
• Boiler efficiency at 80//60°C % 92 92.2 92.5 93 92.7<br />
• Standard efficiency 75//60°C (<strong>to</strong> EN 303) % 94,3 95 95,1 95,2 95,3<br />
• Standing losses qB ((70°C) Watt 240 260 260 270 270<br />
• Combustion chamber resistance<br />
160 °C flue gas temperature,12,5 %CO2 ,500 m ü.M<br />
(Tolerance +/-20 %) mbar 0,03 0,05 0,12 0,16 0,20<br />
• Flue gas mass flow 12,5 %CO2 (oil) kg/h 30,6 42,5 54,4 61,2 66,3<br />
• Primary resistance 5 z—Value 6,5 4,3 4,3 4,2 4,2<br />
• Primary resistance ( t = 10K) mbar 15,58 19,74 32,57 40,26 47,25<br />
• Primary resistance ( t = 20K) mbar 3,89 4,93 8,14 10,06 11,81<br />
• Hydraulic mass flow ( t = 10K) m 3 /h 1,55 2,15 2,75 3,10 3,35<br />
• Hydraulic mass flow ( t = 20K) m 3 /h 0,77 1,08 1,38 1,55 1,68<br />
• Boiler water content Litres 76 71 71 85 85<br />
• Gas volume m³ 0,050 0,058 0,058 0,068 0,068<br />
• Insulation thickness around boiler shell m m 80 80 80 80 80<br />
• Dry Weight (including casing) kg 145 170 170 <strong>18</strong>0 <strong>18</strong>0<br />
• Noise level with acoustic shroud 4<br />
– Heating noise dB(A) 62 63 64 64 68<br />
– Chimney noise (at flue outlet) dB(A) 79 80 81 81 83<br />
• Combustion chamber i/dia x Length m m ø312x520 ø312x520 ø312x520 ø312x630 ø312x630<br />
• Combustion chamber volume m³ 0,039 0,039 0,039 0,048 0,048<br />
•<strong>Mini</strong>-3 Width m m 600 600 600 600 600<br />
Length (without burner and shroud) m m 1098 1098 1098 1208 1208<br />
Height m m 1006 1006 1006 1006 1006<br />
•<strong>Mini</strong>-3H Width m m 600 600 600 600 600<br />
Length (without burner and shroud) m m 1072 1072 1072 1<strong>18</strong>2 1<strong>18</strong>2<br />
Height m m 976 976 976 976 976<br />
1 Limited <strong>to</strong> 90ºC by control stat<br />
2 Values are valid at minimum flue gas temperature of 110ºC<br />
3 Values are valid at a minimum flue gas temperature of 130ºC<br />
4 Detail are based on a Hoval oil fired burner and may vary depending on make and model<br />
resistance in mbar = Volume flow (m<br />
2004.<br />
Hoval Ltd, Northgate, Newark, Nottinghamshire. NG24 1JN. England. Tel (01636) 672711. Fax (01636) 673532. website: www.hoval.co.uk March 3 /h) 2<br />
x Z
Hoval <strong>Mini</strong>-3 and <strong>Mini</strong>-3H<br />
Technical Data<br />
<strong>Mini</strong>-3H boiler / calorifier combinations<br />
Calorifier Model 150 200 300<br />
Volume litres 150 200 300<br />
Maximum pressure / Test Pressure bar 10 /15 10 /15 10 /15<br />
Maximum operating pressure °C 75 75 75<br />
Insulation mm 50 50 50<br />
Coefficient of Thermal Conductivity Watt/mK 0,025 0,025 0,025<br />
Weight kg 98 1<strong>18</strong> 194<br />
Width m m 600 600 740<br />
Length m m 991 1261 1435<br />
Height m m 640 640 732<br />
Fixed Primary coil, heating surface m2 0.75 1.0 2.1<br />
Primary water content litres 4.2 6.8 15<br />
Primary resistance (1) z-Value 12 14.2 15<br />
Primary load kW 21.8 27.6 39<br />
Max operating pressure / test pressure bar 10 /15 10 /15 10 /15<br />
Max operating temperature °C 80 80 80<br />
1 Primary resistance (mbar) = (Primary flow rate (m 3 /h)) 2 x z<br />
DHW performance EWE calorifiers with <strong>Mini</strong>-3H boilers.<br />
DHW performance Weight Standing losses<br />
litres/10mins (1) litres/hour (2) <strong>Mini</strong>-3 with EWE qB (70 °C)<br />
<strong>Mini</strong>-3 /EWE Type 60 °C 60 °C k g Watt<br />
(<strong>18</strong>) / 150 90 240 238 331<br />
(<strong>18</strong>) / 200 120 309 259 352<br />
(25) / 150 90 290 253 343<br />
(25) / 200 120 340 274 364<br />
(32) / 150 90 290 273 379<br />
(32) / 200 120 360 294 400<br />
(36) / 200 120 360 304 419<br />
(36) / 300 <strong>18</strong>0 619 380 432<br />
(39) / 200 120 360 304 419<br />
(39) / 300 <strong>18</strong>0 670 380 432<br />
DHW Performance in 10 Min (calorifier is pre-heated <strong>to</strong> 60ºC)<br />
1<br />
2<br />
DHW continuous performance per Hour<br />
Hoval Ltd, Northgate, Newark, Nottinghamshire. NG24 1JN. England. Tel (01636) 672711. Fax (01636) 673532. website: www.hoval.co.uk March 2004.
Hoval <strong>Mini</strong>-3 and <strong>Mini</strong>-3H<br />
Dimensional details<br />
<strong>Mini</strong>-3H heating only boiler with rear flue outlet<br />
960<br />
199.5<br />
C<br />
Burner<br />
Acoustic<br />
Shroud<br />
15<br />
1 Heating Flow R1"<br />
2 Heating Return R1"<br />
3 Safety Valve / Vent R1"<br />
4 Hydraulic Drain R1"<br />
5 Flue Outlet<br />
6 Explosion / Cleaning Door<br />
7 Control Panel<br />
8 Electrical socket for burner<br />
9 Electrical cable entry<br />
Boiler Model A B L C<br />
<strong>Mini</strong>-3H (<strong>18</strong>) 813 757 1012.5 350<br />
<strong>Mini</strong>-3H (25) 813 757 1012.5 350<br />
<strong>Mini</strong>-3H (32) 813 757 1012.5 350<br />
<strong>Mini</strong>-3H (36) 923 867 1122.5 450<br />
<strong>Mini</strong>-3H (39) 923 867 1122.5 450<br />
L<br />
A 60<br />
B<br />
Hoval Ltd, Northgate, Newark, Nottinghamshire. NG24 1JN. England. Tel (01636) 672711. Fax (01636) 673532. website: www.hoval.co.uk March 2004.<br />
129<br />
31<br />
739<br />
5<br />
810<br />
20 - 30 Levelling Feet<br />
715<br />
242<br />
600<br />
473<br />
8<br />
167<br />
190<br />
300<br />
125<br />
1<br />
30<br />
3<br />
150<br />
4 x M8<br />
500<br />
600<br />
220<br />
400<br />
4<br />
1<br />
7<br />
2 2<br />
6<br />
330<br />
9<br />
5<br />
100
Hoval <strong>Mini</strong>-3 and <strong>Mini</strong>-3H<br />
Dimensional details<br />
<strong>Mini</strong>-3 heating only boiler with <strong>to</strong>p flue outlet<br />
990<br />
600<br />
199.5<br />
9 1 2<br />
Boiler Model A B C D E<br />
<strong>Mini</strong>-3 (<strong>18</strong>) 655 899 1098.5 757 350<br />
<strong>Mini</strong>-3 (25) 655 899 1098.5 757 350<br />
<strong>Mini</strong>-3 (32) 655 899 1098.5 757 350<br />
<strong>Mini</strong>-3 (36) 655 1009 1208.5 867 450<br />
<strong>Mini</strong>-3 (39) 655 1009 1208.5 867 450<br />
E<br />
Burner<br />
Acoustic<br />
Shroud<br />
15<br />
9<br />
1<br />
C<br />
28<br />
3<br />
2<br />
B<br />
73<br />
D<br />
A<br />
10<br />
415<br />
5<br />
129<br />
105<br />
1 Heating Flow R1"<br />
2 Heating Return R1"”<br />
3 Safety Valve / Vent R1"<br />
4 Hydraulic Drain R1"<br />
5 Flue Outlet<br />
6 Explosion / Cleaning Door<br />
7 Control Panel<br />
8 Electrical socket for burner<br />
9 Electrical cable entry (either side)<br />
10 Cable channel (either side)<br />
Hoval Ltd, Northgate, Newark, Nottinghamshire. NG24 1JN. England. Tel (01636) 672711. Fax (01636) 673532. website: www.hoval.co.uk March 2004.<br />
6<br />
125<br />
150<br />
5<br />
56<br />
20 - 30 Levelling Feet 840<br />
100 125<br />
300<br />
54<br />
8<br />
300<br />
125<br />
4<br />
150<br />
4 x M8<br />
166<br />
30<br />
500<br />
7<br />
360
Hoval <strong>Mini</strong>-3 and <strong>Mini</strong>-3H<br />
Dimensional details<br />
<strong>Mini</strong>-3H combination unit with rear flue outlet<br />
715<br />
473<br />
1 Heating Flow R 1"<br />
2 Heating Return R 1"<br />
3 Safety valve / Vent R 1"<br />
4 Hydraulic Drain R 1"<br />
5 Flue outlet, 129 mm O / dia,<br />
3 mm thk.<br />
6 Explosion / cleaning door<br />
7 Control panel type 150-200<br />
7a Control panel type 300, on<br />
either left or right hand side<br />
8 Electrial socket for burner<br />
9 Primary flow R 1"<br />
10 Primary return R 1"<br />
c<br />
a<br />
8<br />
u<br />
e<br />
d<br />
b<br />
15<br />
Front view (all models)<br />
14 14<br />
210<br />
13<br />
235<br />
10<br />
1<br />
11<br />
3<br />
12<br />
22<br />
1<br />
9<br />
21<br />
2 5 2<br />
6<br />
400<br />
20<br />
4<br />
167<br />
Rear view <strong>Mini</strong>-3H with 150 / 200 litre calorifier<br />
o<br />
7<br />
p q<br />
r s<br />
h2<br />
t<br />
11 DHW cold feed 150-200 =R 1",<br />
300 = R 1 ½"<br />
12 DHW flow 150-200 = R 1",<br />
300 = R 1 ½"<br />
13 DHW circulation150-200 = R ¾",<br />
300 = R 1"<br />
14 Cable channel 150-200<br />
15 Boiler door hinge right hand as<br />
standard, left on request<br />
16 Base channels<br />
17 Adjustable feet<br />
<strong>18</strong> Burner<br />
19 Accoustic shroud<br />
n<br />
20 Primary return pipework with<br />
pump and non-return valve (150,200)<br />
21 Primary flow pipework (150,200)<br />
22 Au<strong>to</strong>matic air vent<br />
23 Calorifier temperature sensor<br />
24 Sacrificial Anode<br />
25 3kW Immersion heater (optional)<br />
26 Primary flow pipework with<br />
pump and non-return valve (300)<br />
27 Primary return pipework (300)<br />
2004.<br />
March<br />
<strong>Mini</strong>-3H Boiler / Calorifier Combinations<br />
Boiler Cal’r l l 2 b h h 2 a c ød øe f g i k m n o p q r s t u<br />
<strong>18</strong>-32 150 1163 – 600 1648 1481 330 810 125 150 813 757 350 991 – 640 600 739 951 1176 1231 1311 –<br />
<strong>18</strong>-32 200 – 1401 600 1648 1481 330 810 125 150 813 757 350 – 1261 640 600 739 951 1176 1231 1311 –<br />
36-39 200 – 1401 600 1648 1481 330 810 125 150 923 867 450 – 1261 640 600 739 951 1176 1231 1311 –<br />
36-39 300 – 1635 600 1542 1650 330 810 125 150 923 867 450 – 1395 640 600 739 – – – – 710<br />
Hoval Ltd, Northgate, Newark, Nottinghamshire. NG24 1JN. England. Tel (01636) 672711. Fax (01636) 673532. website: www.hoval.co.uk<br />
m<br />
g<br />
f<br />
k<br />
7a<br />
l<br />
l2<br />
206 710<br />
7a<br />
16<br />
17<br />
175<br />
2<br />
100<br />
1<br />
5<br />
9<br />
10<br />
11<br />
3<br />
6<br />
4<br />
12<br />
225<br />
1<br />
2<br />
210<br />
440<br />
i<br />
7<br />
24<br />
23<br />
25<br />
h<br />
19<br />
<strong>18</strong><br />
Rear view <strong>Mini</strong>-3H with 300 litre calorifier<br />
13<br />
7a<br />
27<br />
Side view<br />
(all models)<br />
22<br />
971<br />
26<br />
1395<br />
h
Other associated products<br />
MultiJet<br />
The MultiJet is a compact floor standing, oil-fired condensing<br />
boiler. Three models are available with outputs ranging between<br />
14 and 26kW. A unique design of heat exchanger allows the<br />
MultiJet <strong>to</strong> reach efficiencies as high as 104% net and can be<br />
as much as 40% more efficicient than your existing boiler. The<br />
MultiJet is suitable for oils with a sulphur content up <strong>to</strong> 0.2%<br />
by weight.<br />
Uno-3<br />
The Uno-3 boiler couples high efficiency with low NOx emissions.<br />
These dual goals are achieved with the special 3-pass<br />
design which incorporates the unique Hoval thermolytic heat<br />
exchanger. Available as heating only units or with a calorifier<br />
as a combination unit, with ratings between 50 -280 kW and<br />
DHW up <strong>to</strong> 1110 litres per hour. A modular heatpack version is<br />
also available up <strong>to</strong> <strong>18</strong>0 kW output.<br />
TopTronic<br />
The TopTronic control system brings <strong>to</strong>gether Hoval’s considerable<br />
experience in the field of heating and hot water control,<br />
<strong>to</strong>gether with a high performance microprocessor controls<br />
package. The result is a simple user-friendly operating platform<br />
that controls individual heating and hot water systems and<br />
optimises energy conservation.<br />
PressVal <strong>Mini</strong><br />
The PressVal <strong>Mini</strong> is a compact wall mounted pressurisation<br />
unit which provides au<strong>to</strong>matic make up and pressure for<br />
smaller sealed systems using expansion vessels up <strong>to</strong> 300<br />
litres. Single and duplicate pump models are available complete<br />
with system high and low pressure switches and a<br />
common volt free contact. A separate system filling loop is<br />
supplied with all models.<br />
Hoval Ltd<br />
Northgate<br />
Newark<br />
Notts<br />
NG24 1JN<br />
Tel: (01636) 672711<br />
Fax: (01636) 673532<br />
e-mail: boilersales@hoval.co.uk<br />
Web Site: www.hoval.co.uk<br />
Hoval follows a policy of continued improvement and reserves the right <strong>to</strong> change specifications without notice. Conservation of energy - protection of the environment<br />
March 2004