Specification Summary - Rinnai Smart Cylinders Series Owner And Installer Manual

Specification summary

Suitability
• Residential indoor installations
• Mains and low pressure systems
• Left or right hand plumbing connections
Not suitable as a pool or spa heater, or for
connection to an open loop solar or hot water
heat pump system.
The system should be located and arranged so
as to achieve the closest proximity to water draw
off points. The cylinder also needs to be oriented
so that the control is in a position where the
homeowner can easily see and access it.
Operating pressures
Maximum working pressure
Element
3 kW Incoloy 825 alloy sheath element
positioned at the bottom of the tank.
Thermostat
• 135 and 180 L
iTS12001 Cotherm iQuaFlex 14 A probe
thermostat. Bimetal safety cutout and
manual reset at 77 °C.
• 250 L
iTS12004 Cotherm iQuaFlex 14 A probe
thermostat. Bimetal safety cutout and
manual reset at 82 °C.
Protection against water: IPX1
Incoloy 825 curved element
12 | Rinnai Smart Cylinder MP indoor stainless steel: Owner & installer guide: 20430-C 03-17
Weights
• 135 L:
• 180 L:
• 250 L:
Pressure limiting (reducing) valve
This water heater MUST be installed with a
500 kPa or less pressure limiting valve and
appropriate cold water expansion valve.
TPR valve
A temperature and pressure relief valve is
supplied with the water heater and MUST be
fitted. A TPR insulation kit, to reduce heat loss, is
also supplied with the cylinders—this also needs
to be fitted.
= 850 kPa
The TPR valve thread should be sealed with
teflon tape, do not use paste and hemp. Use the
spanner flats on the valve body to tighten, DO
NOT use a wrench on the valve body.
The TPR valve must be fitted with a drain pipe
to direct any water discharged to a visible point
outside the property. The drain pipe must have
a continuous fall and be at least the same size
as the TPR valve outlet (½ ˝BSP). Where the
drain pipe exceeds three metres in length it is
recommended an air break be provided within
300 mm of the TPR valve outlet. Where an air
break is used it is recommended that the pipe
size after the air break be increased to one
size larger than the TPR valve. It must also be
protected from freezing conditions.
Cotherm thermostat with control
empty full
26.5 kg 161.5 kg
31.5 kg 211.5 kg
41 kg 291 kg