HJ Cooper Stainless Steel Low Pressure Hot Water Cylinders


HJ Cooper Stainless Steel Low Pressure Hot Water Cylinders

A fantastic replacement low pressure hot water cylinder, these cylinders cover your needs from low to medium pressure. Built from high grade stainless steel, this range offers a 10 year warranty.

Convenience
A range of hot water cylinders (135-250 L) that can be used at low and medium pressure. The 250 L cylinder has the option of a second element for faster recovery making it less likely you'll run out of hot water during high demand periods.

Energy efficient
• Curved element design ensures 98% of water is heated
• No cylinders wraps required, all HJ Cooper cylinders meet NZ MEPS

MEPS = Minimum Energy Performance Standard

Quality
Inner tank of hot water cylinder constructed from duplex stainless steel, ensuring high strength and resistance to stress and crevice corrosion.

Future proof your home
Connect this hot water cylinder to a hot water heat pump or solar system* using the extra eco inlet connection** either now or in the future.

Easy installation
The range of hot water cylinders has triple entry making installation easy.

* Auto reset thermostat option must be ordered
** Excludes the 135 L cylinder
  

Suitable for:
 • Indoor installations
 • Low and medium pressure systems
 • Domestic and commercial water heating applications
 • Left, right, or bottom plumbing connections
 • Connection to open loop solar or hot water heat pump systems
 
Not suitable as a pool or spa heater.
 

HJ Cooper Stainless Steel Low Pressure Hot Water Cylinders

HJ Cooper Stainless Steel Low Pressure Hot Water Cylinders

HJ Cooper Stainless Steel Low Pressure Hot Water Cylinders

 
N/A
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HJ Cooper Enamel Mains Pressure Hot Water Cylinders

HJ Cooper Enamel Mains Pressure Hot Water Cylinders

 
N/A
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Hotflo Mains Pressure Hot Water Cylinders

Hotflo Mains Pressure Hot Water Cylinders

 
RRP $1030.00
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Rinnai INFINITY® VT26 External (REU-VR2626WG)

Rinnai INFINITY® VT26 External

44.2 kW
Up to 6.1 stars 
RRP $1779.00
View product details

Type: Internal

Sizes: 135, 180, 250 L

Max pressure: 120kPa

kW: 2 or 3kW

Curved element: Yes

Wetback Option: No

Solar Enabled: Yes

Heat pump ready: Yes

Warranty: 10 Years

Type: Internal

Sizes: 30, 50, 90, 135,180, 250, 300

Max pressure: 850 kPa

kW: 1.5, 2 or 3kW

Curved element: Yes

Wetback Option: No

Solar Enabled: No

Heat pump ready: Yes

Warranty: 5 Years

Type: Internal/External

Sizes: 135, 180, 215, 270, 340

Max pressure: 850 kPa

kW: 2,3 or 3.6 kW

Curved element: Yes

Wetback Option: No

Solar Enabled: Yes

Heat pump ready: Yes

Warranty 5 Years

Type: External only

Sizes: 16L - 26L

Max star rating: 6.2

Efficiency: 80%

Savings over electric on NG: 50%

Savings over electric on LPG: 15%

Warranty: 10 years pro rata on heat exch, 3 years parts


 

Model Codes and Capacities LS13555020 = 135 L (2 kW)
LS13555030 = 135 L (3 kW)
LS18055020 = 180 L (2 kW)
LS18055030 = 180 L (3 kW)
LS25055020 = 250 L (2 kW)
LS25055030 = 250 L (3 kW)
 
Within the range there are different element sizes and configurations, and thermostat options. For further details refer to the 'Low Pressure Premium - Duplex Stainless Steel' section in the Storage Hot Water Pocket Guide.
Anode Not required
Connections Hot and cold water connections ¾ " (20 mm)
Construction High grade duplex stainless steel inner cylinder (refer note below).
Galvanised steel outer casing.
Element Incoloy 825 alloy sheath element positioned at the bottom of the tank.
• 135 L: 2 or 3 kW
• 180 L: 2 or 3 kW
• 250 L: 2* or 3 kW

 * Twin element options available
Operating pressures

Maximum inlet pressure - 120 kPa

Maximum working pressure - 120 kPa

Pressure testing To 3 bar
Thermal insulation CFC-free polyurethane foam insulation, compliant with NZ MEPS.
Thermostat Robert Shaw 30 A contact thermostat, manually resettable at 85 °C. Thermostat is upgradable to an auto reset version for solar or hot water heat pump applications.
TPR N/A
Weight empty (approx.) 135 L: 29 kg
180 L: 35 kg
250 L: 45 kg
Cylinder recovery times (theoretical) Based on a thermostat temp. setting of 60 °C and an incoming water temp. of 15 °C.
135 L 3 hrs 32 mins (2 kW), 2 hrs 22 mins (3 kW)
180 L 4 hrs 44 mins (2 kW), 3 hrs 9 mins (3 kW)
250 L

6 hrs 34 mins (2 kW), 4 hrs 23 mins (3 kW)

3 hrs 17 mins (2 x 2 kW), 2 hrs 11 mins (2 x 3 kW)

General properties of duplex stainless steel 2304
Duplex 2304 is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel whose structure is a balance of ferritic and austenitic. It has general corrosion resistance similar or better than Alloys 304L and 316L but with yield strength nearly double that of austenitic stainless steels. Its duplex microstructure and low nickel and high chromium contents also allows Duplex 2304 to demonstrate improved stress corrosion resistant properties compared to 304 and 316. It is typically suitable for all applications in the -58 °F to 572 °F 
(-50 °C to 300 °C) temperature range and is designed to feature high mechanical strength, good weldability, good corrosion resistance, high resistance to stress corrosion cracking, good machinability, low thermal expansion, good fatigue properties, high thermal conductivity, and easy fabrication.
[source: http://www.pennstainless.com/stainless-grades/duplex-grades/duplex2304-stainless-steel/]
mm 135 L 180 L 250 L
A 320 320 320
B N/A 465 465
C 335 335 335
D N/A N/A 1087
E 1015 1295 1740
F ø 550 ø 550 ø 550

Low-med pressure stainless steel cylinder dimensions diagram

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Gas Hot Water

*Gas* Hot Water

Save 50% over electric with Infinity VT*

Get Rinnai INFINITY ® VT Gas Hot Water at home.


*15% in areas using LPG

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