Stainless Steel Low-Medium Pressure Indoor Cylinders
Overview
These premium low pressure hot water cylinders are an ideal replacement option
Constructed from high grade duplex stainless steel and packed with features to benefit specifiers, installers and homeowners, making them exceptional value for money.
- Lightweight, stainless steel makes transport and installation a breeze
- Low maintenance, no sacrificial anode to maintain
- Auto-reset thermostat option means these cylinders can be solar or hot water heat pump ready
With the 180 L or 250 L, connect to a hot water heat pump or solar system with the extra eco inlet connection now or in the future. The 250 L cylinder also has the option of a second element making recovery times quicker and making it less likely you’ll run out of water.
Product Details
Suitable for:
- indoor installations only
- mains and low pressure systems
- residential and commercial water heating applications
- left or right hand plumbing connections
- connection to open loop solar or hot water heat pump systems
Not suitable as a pool or spa heater.
Water quality
Rinnai cylinders are manufactured to suit most NZ council water supplies. However some supplies can have a detrimental effect on the cylinder, its operation and life expectancy. Stainless steel cylinders are not suitable for bore or tank water.
Water supplies with a high level of calcium carbonate (hard water) can cause scaling on hot surfaces. We recommend a temperature of no more than 65 °C to minimise scale buildup. Scale reducing or water softening devices should be considered in hard water areas. The unit is not guaranteed against damage due to scaling.
Technical Specifications
Diameter
550 mm
IP rating
IPX1
Warranty
10 years
Not required
Hot and cold water connections ¾ ” (20 mm)
Inner cylinder: High grade duplex stainless steel
Outer casing: Galvanised steel
Incoloy 825 alloy sheath element positioned at the bottom of the tank.
Maximum inlet pressure = 120 kPa
Maximum working pressure = 120 kPa
CFC-free polyurethane foam, compliant with MEPS standard
Robert Shaw 30 A contact thermostat, manually resettable at 85 °C. Thermostat can be upgraded to an auto-reset thermostat for solar and hot water heat pump applications.
| Model | Weight empty | Weight full |
| 135 L | 26.5 kg | 161.5 kg |
| 180 L | 31.5 kg | 211.5 kg |
| 250 L | 41 kg | 291 kg |
Based on a thermostat temp. setting of 60 °C and an incoming water temp. of 15 °C.
- 135 L = 3 hrs 56 mins (2 kW), 2 hrs 37 mins (3 kW)
- 180 L = 5 hrs 15 mins (2 kW), 3 hrs 30 mins (3 kW)
- 250 L = 7 hrs 17 mins (2 kW), 4 hrs 51 mins (3 kW)
- 250 L = 3 hrs 39 mins (2 x 2 kW), 2 hrs 25 mins (2 x 3 kW)
No cylinder wrap required. All Rinnai cylinders meet the NZ Minimum Energy Performance Standard (MEPS).
- LS13555020 135 L 2 kW (height 1020 mm)
- LS13555030 135 L 3 kW (height 1020 mm)
- LS18055020 180 L 2 KW (height 1295 mm)
- LS18055030 180 L 3 kW (height 1295 mm)
- LS25055020 250 L 2 kW (height 1740 mm)
- LS25055030 250 L 3 kW (height 1740 mm)
- LS250550D20 250 L 2 x 2 kW (height 1740 mm)
- LS250550D30 250 L 2 x 3 kW (height 1740 mm)
- LS250550U20 250 L 2 kW (height 1740 mm)
- LS250550U30 250 L 3 kW (height 1740 mm)
- LS18055020A 180 L 2 kW (height 1295 mm)
- LS18055030A 180 L 3 kW (height 1295 mm)
- LS25055020A 250 L 2 kW (height 1740 mm)
- LS25055030A 250 L 3 kW (height 1740 mm)
- LS250550D20A 250 L 2 x 2 kW (height 1740 mm)
- LS250550D30A 250 L 2 x 3 kW (height 1740 mm)
- LS250550U20A 250 L 2 kW (height 1740 mm)
- LS250550U30A 250 L 3 kW (height 1740 mm)