Main Indirect Unvented Hot Water Cylinders

Price Range
£451.58 to £623.36 inc VAT
Save up to £751.27 off RRP

There are 6 product(s) on this page.

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Main Unvented Hot Water Cylinders are designed help save the environment and minimise fuel bills. The range has six direct and six indirect models, which are designed to work with Main Eco Elite System boilers, providing the complete solution for your project. The indirect heating coil is fitted with an electric immersion heater as back up, so you can be confident of having hot water, whenever you need it.
The cylinders are easy to install, with front access to controls and connections. The coil-in-coil heat exchanger ensures rapid heat recovery and 50mm of factory injected polyurethane foam ensures that heat loss and running costs are kept to a minimum. The high grade stainless steel inner cylinder ensures a long product life with low maintenance.


Features:

  • One year parts and labour warranty*
  • 25 year warranty on stainless steel inner vessel*
  • Indirect heating coil (factory fitted with an electric immersion heater as back up)
  • Coil-in-coil heat exchanger
  • High grade stainless steel cylinder
  • Low heat loss
  • Incoloy 800 alloy sheathed elements
  • KIWA approved
  • Manufactured in the UK
  • *Subject to registration

Fixing – Feet on bottom moulding for floor mounting.

Plumbing connections – Inlet/Outlet, 22mm compression fittings / ¾” BSP 
parallel thread.

Primary coil – 22mm compression fittings / ¾” BSP parallel thread.
Temperature and pressure relief valve – 15mm compression outlet.

Cold water control – Integrated cold water control set comprising pressure
reducing valve and strainer – factory set at 3.5 bar, expansion relief valve –
factory set at 6 bar and check valve. 22mm compression fittings.

Mains pressure – Min 1.5 bar, Max 16 bar. A 2-port motorised valve is
supplied with indirect models.

Flow rates – Up to 55 litres per minute @ 6 bar pressure.

Operating pressure – 3.5 bar.

Expansion relief valve pressure – 6.0 bar.

Operating temperature – Recommended 60°C. Adjustable 10-70°C.

Water expansion – Remote expansion vessel
12 litre vessel supplied with 120 and 150 litre models.
18 litre vessel supplied with 170 and 210 litre models.
24 litre vessel supplied with 250 and 300 litre models.

Minimum water supply requirements – Recommended minimum supply
pressure – 1.5 bar/20 l/min flow rate.

Secondary circulation – Via 22 x 22 x 15mm swept tee, which should be fitted
to the inlet pipework. Secondary Circulation is not recommended for direct units
being used with off-peak electricity tariffs.

Pressure testing – Units are tested to 15 bar.

Tundish – 15mm compression inlet and 22mm compression outlet.

 

Electrical

Indirect models – Controls should be wired to the boiler, programmer etc,
in accordance with the control scheme being used.

Direct models – Connection is direct to terminals in the immersion heater which
must be permanently connected to the supply through a double-pole lined
isolating switch with a minimum breaking capacity of 13A.

All electrical wiring must conform to the latest IEE Wiring Regulations.

Info
Name
MPN
Price
Quantity
Main Indirect Unvented Hot Water Cylinder - 210 Litre - 5133564
5133564
£484.00
 
Name Main Indirect Unvented Hot Water Cylinder - 210 Litre - 5133564
Product Code 176195
MPN 5133564
EAN 5033313018924
Type Unvented Cylinder
Sub Type Indirect
Colour White
Warranty (Years) 25
Height (mm) 1499
Diameter (mm) 550
Weight (Kg) 41
Output (Kilowatts) 16
ErP Water Heating Efficiency A
Capacity (Litres) 210
Material Stainless Steel
RRP £1,122.37 You Save £638.38
Main Indirect Unvented Hot Water Cylinder - 300 Litre - 5135328
5135328
£623.36
 
Name Main Indirect Unvented Hot Water Cylinder - 300 Litre - 5135328
Product Code 176197
MPN 5135328
EAN 5033313019327
Type Unvented Cylinder
Sub Type Indirect
Colour White
Warranty (Years) 25
Height (mm) 2065
Diameter (mm) 550
Weight (Kg) 60
Output (Kilowatts) 19
ErP Water Heating Efficiency A
Capacity (Litres) 300
Material Stainless Steel
RRP £1,374.64 You Save £751.27
Main Indirect Unvented Hot Water Cylinder - 150 Litre - 5133562
5133562
£468.61
 
Name Main Indirect Unvented Hot Water Cylinder - 150 Litre - 5133562
Product Code 176193
MPN 5133562
EAN 5033313018900
Type Unvented Cylinder
Sub Type Indirect
Colour White
Warranty (Years) 25
Height (mm) 1114
Diameter (mm) 550
Weight (Kg) 31
Output (Kilowatts) 12.5
ErP Water Heating Efficiency A
Capacity (Litres) 150
Material Stainless Steel
RRP £1,028.20 You Save £559.58
Main Indirect Unvented Hot Water Cylinder - 250 Litre - 5135327
5135327
£575.40
 
Name Main Indirect Unvented Hot Water Cylinder - 250 Litre - 5135327
Product Code 176196
MPN 5135327
EAN 5033313019310
Type Unvented Cylinder
Sub Type Indirect
Colour White
Warranty (Years) 25
Height (mm) 1752
Diameter (mm) 550
Weight (Kg) 50
Output (Kilowatts) 18
ErP Water Heating Efficiency A
Capacity (Litres) 250
Material Stainless Steel
RRP £1,249.48 You Save £674.08
Main Indirect Unvented Hot Water Cylinder - 120 Litre - 5133561
5133561
£451.58
 
Name Main Indirect Unvented Hot Water Cylinder - 120 Litre - 5133561
Product Code 176192
MPN 5133561
EAN 5033313018894
Type Unvented Cylinder
Sub Type Indirect
Colour White
Warranty (Years) 25
Height (mm) 931
Diameter (mm) 550
Weight (Kg) 27
Output (Kilowatts) 12.5
ErP Water Heating Efficiency A
Capacity (Litres) 120
Material Stainless Steel
RRP £987.83 You Save £536.24
Main Indirect Unvented Hot Water Cylinder - 170 Litre - 5133563
5133563
£475.24
 
Name Main Indirect Unvented Hot Water Cylinder - 170 Litre - 5133563
Product Code 176194
MPN 5133563
EAN 5033313018917
Type Unvented Cylinder
Sub Type Indirect
Colour White
Warranty (Years) 25
Height (mm) 1241
Diameter (mm) 550
Weight (Kg) 33
Output (Kilowatts) 16
ErP Water Heating Efficiency A
Capacity (Litres) 170
Material Stainless Steel
RRP £1,068.53 You Save £593.29
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