Rho Instantaneous Inline Water Heater 4.4 kW Standard - IN44

Outer Casing
Easy clean high impact ABS

Heating Element
Bare-wire heating system (3 nickel chrome heating elements)

Controls (Thermostatic Model only)
Temperature display (°C)

Power on/ off button

+/- controls allow the user to set the required temperature

The temperature display will flash if the set temperature cannot be reached.

Taps and Tap Spray Nozzles
Intended for use with spray head taps with removable M22/ M24 nozzles. Compatible tap available.

Important – the supplied tap spray nozzle must be fitted in the tap for best performance.

Safety
Overheat temperature protection 80°C.

Thermostatic model – water temperature controlled to maintain user selected temperature between 30°C and 48°C as water pressure conditions vary.

IP Rating
IPX4

Installation
This appliance must be installed in a frost free environment.

The heater should be located as close as is practicable to the hot water outlet to avoid unnecessary heat losses through the pipework.

Plumbing
Must be installed by a suitably qualified person.

Minimum flow rate 2.0 l/m.
Minimum water pressure 1 bar.
Maximum rated pressure 7.5 bar.
Water resistivity ≥ 1300 Ωcm.

Water Connection
Inlet/Outlet 2 x 1/2" BSP male (40mm apart centre to centre).
Fittings required (not supplied): 2 x 15mm compression to 1/2" BSP female adapter.

Suitable for use with pre-heated water e.g. solar heating systems subject to maximum inlet water temperature 60°C.

Electrical Connection
Installation must comply with current IEE regulations.

Single phase. Fuse rating guide 19 amps for 4.4 kW and 27 amps for 6.0 kW.

The product should be connected to the fixed wiring of the property via a suitably rated isolating switch with contact separation of at least 3mm in all poles.

Cable pre-wired (0.7m).

Approvals
CE, WRAS

Standard Warranty
1 year parts or replacement warranty

Temperature Rise

Temperature rise from ambient for an instantaneous water heater (TR)

TR = kW rating x 14.3 / flow rate l/m

Application

Recommended temperature for hand washing or shower 38°C.

Recommended temperature for a kitchen sink 50°C.

Ara, Rho and Aquila Instantaneous water heaters are intended for use with spray head taps with removable M22/ M24 nozzles. A tap spray nozzle must be fitted in the tap to control the water flow rate and to provide best performance and energy and water efficiency

Selection Guide

Take into account that the incoming water supply temperature will be lower in the winter than summer

The incoming water temperature can fluctuate dependent on time of year in the UK. Winter may result in incoming temperatures below 10°C, whereas summer water temperatures can be upwards of 15°C. It is imperative this is taken into account

For example the heater could deliver 42°C water in the summer (with an incoming water supply temperature of 15°C). The same product with the same flow rate would only be able to deliver 37°C in winter (due to a lower incoming water temperature of 10°C). The delivered temperature will be even lower if the incoming water supply temperature is less than 10°C

Check the flow rate and water temperature will be adequate for your application using the chart and tables provided