MicroHeat CFEWH 2-15, Installation & Operation Manual

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CFEWH SERIES 2 – Three phase | INSTALLATION Manual © Mar 2022 | MicroHeat Technologies Pty LTD Page 8 of 22
CFEWH Specifications
All
specifications , stated operational flow rates and output water temperatures are valid within the range of water
conductivity:
Standard CFEWH 80μS/cm to 800μS/cm + 15% at 20°C / 12.5kΩ - cm to 1.25kΩ -cm +15% at 20°C
High Conductivity CFEWH 250 μS/cm to 2,5 00μS/cm + 15% at 20°C / 4.0 kΩ -cm to 0.40k Ω -cm +15% at 20°C
NOTE: Water conductivity may be less than
80μS/cm. Reduce fl ow 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 without damage.
Electrical Connection
THREE PHASE CFEWH SERIES 2 Model Range
Series 2-13 Series 2-15 Series 2-18 Series 2-21 Series 2-24 Series 2-27 Series 2-30
Install Type Single Single Single Single Single Tandem Single
Rated Power (kW)
13 kW 15 kW 18 kW 21 kW 24 kW 27 kW 30 kW
Voltage (VAC) 415 V
415 V
415 V 415 V 415 V 415 V 415 V
RCBO Rated AMPS*
18 Amps x 3 21 Amps x 3 25 Amps x 3 29 Amps x 3
33 Amps x 3 38 Amps x 3 42 Amps x 3
Frequency (Hz) 50/60
50/60
50/60 50/60 50/60 50/60 50/60
Max. flow rate
l/min - based on
temperature
increase -
∆°C
15°C
12.4 14.3 17.2 20 20 20 20
25°C
7.5 8.6 10.3 12 13.8 15.5 17
35°C
5.3 6.1 7.4 8.6 9.8 11.1 12.3
45°C
4.1 4.8 5.7 6.7 7.6 8.6 9.6
Unit Parameters
Switch on Flow Rate
1.5 LPM
Temperature Settable + / - 1°C
System Type
Continuous Flow Electric Water Heater (CFEWH)
Hot water market segment
– Electric Instantaneous/Tankless
Maximum Rated
Operating Line
Pressure
10 bar / 1 MPa - Note: Pressure limiting valve required inlet side of unit as per installation manual, Page 11.
Minimum Operating Pressure
1.5 bar / 0.15 MPa
– Operates off mains supply or pump supply
Dimensions
Length 31.5 cm x Width 21 cm x Depth 17 cm
– A4 footprint
Heating Method
Optimised Direct Energy Transfer
– Digitally controlled water heating
Nominal capacity single unit
(ml)
385 ml
Tandem Configuration - 2 x 385 ml
Standards
Water Regulation
AS/NZS 3498**, AS/NZS 4020, AS/NZS 3500
Electrical Safety
AS/NZS 60335.2.35 / IEC 60335.2.35
EMC
CE/C-Tick
* The CFEWH Series 2 Series requires hard wired circuits. If installing a RCCB breaker, minimum acceptable is Super Immune (Type A-SI).
** In accordance with AS 3498:2020 if factory set to either 45°C or 50°C no additional delivery temperature control is required.
This appliance may deliver water at high temperature. Refer to the Plumbing Code of Australia (PCA), local requirements and installation
instructions to determine if additional delivery temperature control is required.
CFEWH Series 2 Hot Water Output Temperatures / Flow Rate
The incoming water temperature will vary during Summer and Winter. This may affect the available hot water flow rate
If the water appears to be lukewarm, simply reduce the flow rate out of the outlet until the water reaches the desired
temperature.