Installation manual

CFEWH SERIES 1
-
10 | INSTALLATIoN MANUAL ©2013 | MicroHeat Technologies Pty Ltd
1918
Product Specifications
All specifications, stated operational flow rates and output water temperatures are valid within the range of
water conductivity:
• 80µS/cm to 800µS/cm + 15% at 20°C (µS–microSiemens)
• 1.25kΩ-cm to 12.5kΩ-cm +15% at 20°C
NOTE: Water conductivity may be less than 80µS/cm. Reduce flow rate to achieve comfortable water temperature.
Water conductivity greater than 800µS/cm + 15% will generate an error condition. In this circumstance, the
appliance will shut down safely and without damage.
Reference
Preparation for Use
After installation, this two step procedure must be followed.
The unit must be primed – this is required only once – nominally at installation.
(Priming is only required when the electricity supply to the unit has been turned off/removed from the unit – for
example, after a power failure or an isolation switch OFF condition).
Priming is required to set the unit up environmentally to ensure that the heating ramp-up time from start during
normal operation will be as short as possible, without incurring power overshoot.
Once primed, the unit will ramp-up to the optimised power required at the time without overshoot.
Note: Power overshoot typically results from the maximum power input required to get a heat exchanger up to
working temperature as quickly as possible. However, as the unit does not incorporate a heat exchanger,
this initial power ‘kick’ is not required at start up.
STEP 1: Flush
• Flushing is required to clear the unit of plumbing debris that may have collected in the piping during
installation. Remove the Inlet Filter (13) whilst doing this and replace after flushing.
• This is done with the electric power supply turned off.
• Flushing should be allowed to continue for 1 to 2 minutes.
STEP 2: Prime
• Turn the electricity supply on – check for the LED (16) slow flashing GREEN. The unit is now in stand-by mode.
• Turn on the hot water faucet to a flow rate greater than 1.5ltr/min (the unit will start heating – check for LED
(16) fast flashing GREEN), and allow the unit to run for about 3 minutes.
The unit is now primed and ready for use.
Installation
Model CFEWH SERIES 1-10
System Type Continuous Flow Electric Water Heater (CFEWH)
Heating Method Optimised Direct Energy Transfer
Capacity 400 ml
Dimensions
(Without Extension Cover) Height 295mm x Width 210.50mm x Depth 125mm
Electrical Rating
Rated Power 9.6 kW
Voltage 240 VAC
Rated Amperage 40 AMPS
Frequency 50 Hz
Electrical Connection Live / Neutral / Ground
Operating Parameters
Switch on Flow Rate 1.5 ltr/min
Maximum Rated Operating
Line Pressure
10 MPa / 10 bar / 150 PSI
Output Water Temperature 50°C (Factory Setting)
Minimum Output Water
Temperature
20°C
Maximum Output Water
Temperature
50°C*
*In accordance with AS/NZS 3498 Section 7.2.1
The CFEWH SERIES 1-10 does NOT require the installation of Tempering Valves OR Thermostatic Control Valves
Standards
Water Contamination WaterMark AS/NZS 4020 & AS/NZS 3498
Electrical Safety AS/NZS 60335.2.35 & IEC 60335.2.35
IP Rating IP44
EMC CE/C-Tick
Single Phase – CFEWH SERIES 1-10