Bromic Heating INSTANTANEOUS Series User manual

V5 - 03/2023
3 - PHASE MODEL
INSTANTANEOUS
ELECTRIC HOT WATER

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CONTENTS
1. PREFIX
3
2. IMPORTANT NOTES & WARNINGS
4
3. PRODUCT OVERVIEW
5
4. INSTALLATION
7
5. OPERATION
11
6. USER CARE
14
7. MAINTENANCE
14
8. TROUBLESHOOTING
16
9. W IRING DIAGRAM
17
10. WARRANTY
17

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1. PREFIX
This manual contains important information about the installation, operating and maintenance
of the Bromic Instantaneous Electric Hot Water Heaters. Please pay close attention to
the important safety information shown throughout this instruction manual. Any safety
information will be accompanied by the following safety alert symbols:
DANGER, WARNING, IMPORTANT
• READ THIS MANUAL CAREFULLY before installing or servicing this product.
• Improper installation, operation, or maintenance can result in death, severe
injury, or property damage.
• This appliance is intended for 3 phase 415 Volt power supply only.
• Installation MUST be carried out by a licensed and authorised technician in
accordance with local electrical and plumbing codes.
!
!
!

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• Read all instructions before installing or using this appliance.
• Installation must be performed by a qualified technician in compliance with AS/NZS 3500.4 Plumbing and
drainage: Heated water service and Clause G12 of the NZ Building Code as well as all other current national
and local regulations.
• Retain this manual for future reference.
• Use this appliance only as described in this manual. Any other use not recommended by the manufacturer
may cause fire, electric shock, injury or death.
• Improper installation, adjustment or alteration and failure to follow the warnings and instructions in this
manual could result in severe personal injury, death or property damage.
• The manufacturer is not responsible for any damage that could happen from improper use. The
manufacturer emphasises that this appliance should be used in a responsible manner and that all
procedures, warnings, and safety instructions contained in this booklet be followed strictly.
• Improper use includes the use of this appliance to heat any liquid other than main/potable water within
the resistivity range specified in this manual (Section 3) and the product data label.
• Check the appliance for damage. Do not operate a damaged unit.
• Check for damage to the appliance regularly. If damage to the appliance is suspected, immediately
disconnect the appliance at the isolation point and discontinue use. Contact the supplier or qualified person
to repair. Do not open equipment.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge.
• Keep packaging material out of reach of children.
• The appliance should be installed in such a location that children cannot access the equipment.
• Do not attempt to alter the appliance in any manner.
• Water with a temperature higher than 40°C has the potential to cause serious burns, especially for
children.
• This appliance is capable of heating water to a temperature of 60°C. The installation of a temperature
limiting device (such as a tempering valve) is mandatory to ensure the water delivery temperature to any
fixtures intended for personal hygiene does not exceed 50°C.
• A water hammer arrestor must be fitted to the outlet of the unit if the water supply pressure is above
500kPa and/or the pipe length on the hot water outlet line is less than 5m (in total).
• Do not perform maintenance until the appliance has been eectively isolated from all 3 power supply phases
and water has been shut-o.
• Do not operate the appliance with panels, covers or guards removed.
• If the appliance has not been used, or will not be used for a long period of time, disconnect power supply.
• Heater installation, electrical and hydraulic/plumbing work must be performed by qualified technicians.
• Appliance is not to be installed in locations where freezing can occur.
• Install the appliance vertically and near the draw point. Mounting configuration must be according to the
heater’s model. Installation and use of the heater in opposite/incorrect configuration will cause permanent
damage to the appliance.
• Do not connect the heater to the electric mains until the appliance has an active water connection and
has been eectively vented as per Section 5.1 and the connections have been leak tested as required.
• Do not operate the appliance when air may be present in the appliance or connecting pipes.
• Water supply temperature to this appliance shall not exceed 60°C.
• The outlet piping material connected to this appliance shall not be plastic. Refer to national and local
plumbing code for further details
2. IMPORTANT NOTES AND WARNINGS
IMPORTANT

5
3. PRODUCT OVERVIEW
The Bromic Instantaneous series is a closed instantaneous water heater.
HF 18 kW 21 kW 24 kW 27 kW
Part number 2850318 2850321 2850324 2850327
Type Instantaneous Instantaneous Instantaneous Instantaneous
Voltage, V 415V 415V 415V 415V
Rated Power, kW 18 21 24 27
Rated Current, A (3 phase) 25.1 29.2 33.4 37.6
Hot Water Delivery, L/min
(at ∆T=30°C) 8.7 10.1 11.6 13.0
Activation Flow Rate, L/min 2.5 2.5 2.5 2.5
Max Inlet Pressure Rating, kPa 1000 1000 1000 1000
Temperature Range, °C 30 – 60 30 – 60 30 – 60 30 – 60
Dimensions, mm 440 x 245 x 126 440 x 245 x 126 440 x 245 x 126 440 x 245 x 126
Weight, kg 4 4 4 4
IP Rating IP24 IP24 IP24 IP24
Water Connections G1/2” Female G1/2” Female G1/2” Female G1/2” Female
Element Type Bare Element Bare Element Bare Element Bare Element
Min Water resistivity, Ω·cm
(at 15°C) 1100 1100 1100 1100
Table: maximum flow/temperatures

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4. INSTALLATION
4.1 HEATER MOUNTING AND WATER CONNECTION
• Installation must be performed by a qualified technician in compliance with AS/NZS 3500.4
Plumbing and drainage: Heated water service and Clause G12 of the NZ Building Code as well as all
other current national and local regulations.
• The heater should always be vented before initial start-up. Venting (see Section 5.1) needs to be
completed whenever air has been introduced to the appliance or piping.
• The appliance should be mounted in a way that it can be easily accessed.
• Do not connect the heater to the electric mains until the heater is vented and all water
connections are tight and full.
• Heater must be connected to main/potable water supply only.
• The specific electrical resistance of the water must not fall below what was specified on product
data label (and Section 3 of the manual). The electrical water resistance and conductivity
information can be obtain from local water supply utility company.
• This appliance is not to be used as a potable/drinking water supply.
• This appliance is only suitable for indoor installation.
• Ensure the circuit breaker and the isolation switch are suitably sized for the appliance.
• Ensure the electrical wiring installation conforms with all the requirements stipulated in AS/NZ3000.
• The appearance of dierent models are near identical, care needs to be taken to ensure the
correct unit has been installed.
• Check the received unit (power rating) matches the unit ordered.
• Upon power up ensure the LCD displays a power rating that matches the unit ordered.
• Do not tamper with any labels on or in the unit.
• Do not operate the unit if any labels have been tampered with.
• Do not use vented taps.
• Ensure that the water pipe materials are compatible for the installation, taking into account inlet and
outlet temperatures.
• Minimum flow rate for the appliance to operate is 2.5L/min.
• Take note of the maximum flow/temperatures when connecting the appliance to multiple outlets,
refer to Section 3.
• Install the appliance vertically and near the draw point. The water connections must be located at the
bottom.
• A water hammer arrestor must be fitted to the outlet of the unit if the water supply pressure is above
500kPa and/or the pipe length on the hot water outlet line is less than 5m (in total).
• The water hammer arrestor must be suitable for potable water, rated for a minimum 90°C and
have a maximum operation pressure of at least 1500 kPa.
WARNING
IMPORTANT

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I. Check the received unit (power rating) matches the unit ordered.
II. Apply the template on the location that the appliance will be located.
(template can be found in the box).
III. Mark the points for drilling holes – mounting screws, water inlet/outlet and power supply.
IV. Bring the water and power supply through the marked points.
V. Remove the front cover of the heater. (see diagram)
1. Remove the screw located at the top of unit.
2. Pull the cover away from the top.
3. Lift the cover.
VI. Route the power supply wires through the correct access hole. There are two (2) options as
above.
a. Bottom of the heater, between the hot and cold water connections
b. Top of the heater, located next to cover retainer screw hole. If this is the preferred hole,
this needs to be cut out.
VII. Install the heater using the mounting holes provided.
VIII. Remove the plugs from the cold and hot water connections.
IX. Connect the unit to the water supply
a. RHS, Cold water inlet [Cold water from water supply.
b. LHS, Hot water outlet [Hot water to taps and showers.
X. After installing the water connections, open water supply and hot water tap. Wait until the
water starts running at a constant and even flow from the tap.
XI. Check connections for leaks.
Electrical connection
inlet options
• Reheating pre-heated water allows the heater to interact with other devices. The inlet water
temperature can be up to 40°C. This solution allows the heater to interact with another heat source
and preheat water with the use of, for example, a solid fuel boiler in cooperation with a hot water
tank.
• This appliance is capable of heating water to a temperature of 60°C. The installation of a temperature
limiting device (such as a tempering valve) is mandatory to ensure the water delivery temperature to
any fixtures intended for personal hygiene does not exceed 50°C.

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IMPORTANT
Appliance installation clearance.

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4.2 ELECTRICAL CONNECTION
• Ensure the electrical wiring installation conforms with the requirement stipulated in AS/NZ3000.
• The appliance must be permanently connected to fixed wiring.
• The appliance must be earthed.
• Electric installation MUST be equipped with residual current protective devices and other devices
that ensure disconnection of power (all poles are disconnected by at least 3mm separation)
• Means for disconnection must be incorporated in the fixed wiring in accordance with wiring rules
and all relevant rules and regulations.
• Make sure that there is no access to live parts through the appliance access holes.
• Do not connect the heater to the electric mains until the heater is vented and all water connections
are tight and cover is on.
• Do not upgrade the circuit breaker without considering the sizing and power rating of the heater’s
supply cable
WARNING
MUST connect to EARTH
Ensure the earth tab is securely connected

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I. Connect the power supply cables to the heater.
II. Make sure that the safety cut-out reset button is pushed in.
III. Replace the front cover of the heater. Ensure that all the cover is correctly installed without any
openings.
IV. Check there is no access to live parts.
V. Confirm the power label on the cover and the base are correct.
VI. Turn on power and ensure the external stickers and LCD displays a power rating that matches
the unit ordered
Make sure that the safety cuto switch, as indicated below (WTC3) is at working position. The knob
should be pushed in.
5. OPERATION
• In case of a water supply failure (lack of water in system), the tap and power supply
must be shut o immediately. The heater should be vented again after water supply is
back to normal.
• The heater should always be vented before initial start-up. Vent the heater each time
after the water has been emptied from the heater or pipes. See ‘Venting’ section 5.1.
• Check for damage to the appliance regularly. If damage to the appliance is suspected,
discontinue use immediately and contact the supplier or qualified person to repair.
• Water with a temperature higher than 40°C has the potential to cause serious burns.
• This appliance is capable of heating water to a temperature of 60°C. The installation
of a temperature limiting device (such as a tempering valve) is mandatory to ensure
the water delivery temperature to any fixtures intended for personal hygiene does not
exceed 50°C.
• Do not operate the appliance when air may be present in the appliance or connecting
piping.
• Do not tamper with any labels on or in the unit.
• Do not operate the unit if any labels have been tampered with.
IMPORTANT!
5.1 VENTING
I. Isolate the power supply to the heater.
II. Open the hot water tap. Wait until the water starts running at a constant and even
flow from the tap.
III. Turn on the power supply to the heater.

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5.2.1 TEMPERATURE ADJUSTMENT
I. Turn the knob to the right (CW) to increase the set temperature or to the left (CCW) to
decrease (manual mode) OR;
II. Push the knob to use the values that are stored in the pre-set temperatures. Pushing the knob
allows you to switch between ‘ECO’, ‘SINK’ and ‘BATH’.
III. The stored value in each pre-set can be adjusted as below;
a. Select the pre-set that is required to be changed, e.g ‘BATH’.
b. Push the knob and hold for about 3 seconds until the value starts to flash.
c. Turn the knob to adjust the temperature.
d. Push the knob to save the temperature. (Note: Save the new value within 10 seconds,
otherwise it will be lost).
5.2 HF MODEL OPERATION
• The heater switches on automatically when the flow rate is over 2.5L/min.
• The temperature control system adjusts the power according to the water flow rate, required
temperature and supply water temperature.
• The LCD backlight and icon indicates that the heater is actively heating water.
• If there is insucient power for a given condition – the display will show a flashing icon.
• The LCD backlight will turn on while pushing or turning the setting knob.
• The LCD backlight will automatically turn o when the heater is not in operation or if more
than 50 seconds have passed since the last adjustment.
• There are three (3) pre-set temperature memory – ‘ECO’, ‘SINK’ and ‘BATH’. The pre-set
temperature can be adjusted. See Section 5.2.1 Temperature Adjustment.
• If the unit is controlled by a master appliance through the ‘NA’ connection, the display will
show ‘NA BLOCK’.
• If a fault occurs, the display will show icon and error message.
See ‘Troubleshooting’ section 8.

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5.2.2 CONFIGURATION AND PARAMETER VIEW
I. Adjust the temperature value to the minimum in manual mode.
II. Push and hold the knob for about 5 seconds until the display shows ‘>SET TEMP’.
a. Push the knob again, the display will flash at 30°C.
b. Set the desired operating temperature by turning the knob.
c. Press the knob once the desired temperature is displayed. The ‘>SET TEMP’ will be displayed
without flashing.
IMPORTANT: If these steps are omitted the appliance will target an outlet temperature of 30°C.
III. Turn the knob to view other parameters and their value.
IV. To change a parameter push the knob – the value will flash.
V. Turn the knob to adjust the parameter/setting.
VI. Push the knob to confirm the changes.
VII. Access the sub-menu by viewing ‘POWER SET’ then push the knob.
a. Turn knob to view; ‘PW...’, ‘MSP…’, ‘FACTORY SET’ and ‘RESET’
b. To proceed with ‘FACTORY SET’ and ‘RESET’, push and hold the knob for
5 seconds until ‘- -‘ is displayed.
c. Push knob to exit sub-menu.
VIII. Push the knob while on ‘>EXIT’ parameter to save the changes.
Data Description
>SET TEMP Set temperature (min-max), °C
>T INLET Inlet temperature value, °C – view only
>T OUTLET Outlet temperature value, °C – view only
>FLOW Flow rate, L/min – view only
>FULL POW Percentage of max power currently used, % - view only
>T-h Work time, hrs – view only
>BRIGH MIN Minimum brightness/stand-by mode (0 – BRIGH MAX)
>BRIGH MAX Maximum brightness/active mode (BRIGH MIN – 25)
>ENGLISH Select language (POLSKI, FRANCAIS, ENGLISH, DEUTCH, РУССКИИ)
>TEMP LIMIT Max temperature limit (min-max), °C
>HE TEST For manufacturer use only
>POWER SET Configured power value, kW – view only. (Push knob to access sub-menu)
PW…* Software version (*accessible through sub-menu)
MSP…* PCB board version (*accessible through sub-menu)
FACTORY SET* Restore factory settings (*accessible through sub-menu)
RESET* Reset controller (*accessible through sub-menu)
>EXIT Save new parameters and exit menu
Parameters and Configuration settings are listed below:

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5.2.2 CONFIGURATION AND PARAMETER VIEW
(CONTINUED)
Notes:
• After setting ’>TEMP LIMIT’, any pre-set above the limit will be adjusted to the new value.
• If you try to adjust the set temperature above the limit, a icon will show.
• Parameter view mode will automatically exit without saving changes after
5 minutes of inactivity.

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6. USER CARE
7. MAINTENANCE
7.1 OPENING THE APPLIANCE
• Check for damage to the appliance regularly. If damage to the appliance is suspected,
discontinue use immediately and contact the supplier or qualified person to repair.
• Do not use any abrasive or corrosive cleaning agents.
• Check the tap regularly. Limescale deposits at outlets can be removed with
descaling agents.
• Clean the outside of the appliance with a clean dry cloth.
• All maintenance must be performed by a qualified and licensed technician.
• Do not tamper with any labels on or in the unit.
• Do not operate the unit if any labels have been tampered with.
1. Remove the screw located at the top of the unit.
2. Pull the cover away from the top.
3. Lift the cover.
IMPORTANT!
WARNING!

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7.2 FILTER CLEANING
• Failure to install the filter on the water supply pipe may cause damage to the heater.
IMPORTANT!
I. Isolate the power from the appliance and shut-o the cold water supply.
II. Remove the front cover.
III. Undo the inlet fitting on the cold water side.
IV. Remove the filter from the inlet fitting.
V. Clean the filter.
VI. Reinstall the filter and gasket to the inlet fitting.
VII. Open the cold water supply to the heater.
VIII. Vent the water system – see ‘Venting’ section 5.1.
IX. Check connections for leaks.
X. Turn on the power supply to the heater.

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8. TROUBLESHOOTING
8.1 HF MODEL ERROR CODES
• Repairs on the unit must be carried out by qualified and licensed technicians only. Contact
the manufacturer or an approved service agent for any repairs needed.
• Refer to the error codes shown for each model.
• Ensure there is water supply available to the unit
• Ensure there is power supplied to the unit
IMPORTANT!
Error Code Symptom Possible Cause(s) Solution
The heater does not
heat water and display
does not work.
Power failure Check power supply
Safety cut-out is
active/faulty Reset/Replace
ER > T INLET No inlet temperature
displayed
Faulty connection Check connection
Faulty sensor Replace
ER > T OUTLET No outlet temperature
displayed
Faulty connection Check connection
Faulty sensor Replace
ER > T MAX*
The heater does not
heat water and display
works.
Temperature has exceeded
maximum value
Check flow sensor
Disable temperature limiting
ER > AIR 1*
or
ER > AIR 2*
Air bubbles in heating box
(equipment detection)
Purge water through the
heater to remove air bubbles
Check water supply
*The heater will stop heating. The heater will not operate again until the fault is resolved.

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9. WIRING DIAGRAM ON BOX
E1 = Heating box
F1 = Safety cut-out & Supply/Earth connec-
tion
XG = Terminal for heating box
BV = Flow sensor
A1 = Power board
A2 = MSP board
A3 = Control panel
Twej = Inlet temperature sensor
Twyj = Outlet temperature sensor
NA = Control appliance by master device
BLOK = Control a slave appliance
XP = Disconnection Device (external and not
supplied with the equipment)
BP = Air sensor
10. WARRANTY
Please visit our webpage for warranty details – bromic.com/warranty-information
Read all instructions before installing or using this appliance.

10 Phiney Place, Ingleburn
NSW 2565 Australia
T: AU 1300 276 642
F: ([phone]
E: [e-mail]
SYDNEY HEAD OFFICE
BROMICHOTWATER.COM