Ariston RT45PE-VN User manual

GB Electric instant water heater
Bình đun nước nóng tức thời VN
RT45PE - VN
RT45E - VN
PHẠM VI SỬ DỤNG
MODEL SCOPE

Thank you for purchasing our instant water heater. Please read the instruction carefully
before use.
DESCRIPTION OF WATER HEATER
(See Fig.1)
13.Soap tray
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1.LED screen
2.Setting buttons
3.Front cover
4.HMI panel
5.ELCB buttons
6.Filter
7.Stop valve
8.Mounting Terminal
9.Hand shower
10.Adjustable shower holder
11.Slider ail
12.Flexible hose
18.Copper base
14.ZCT CHIC
15.Terminal block
16.Pump (1)
17.ELCB PCB
19.Inlet NTC
20.Flow sensor
21.Outlet pipe
22.Outlet NTC
23.Heater Tank
24.Pump PCB (1)
25.Triac PCB
26.Bottom cover
27.Thermostat
28.Main PCB
(1) For with pump models only.

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Possible failures and troubleshooting
Problem Screen
display
ELCB
lamp
(if any)
Heating
Iconchecking actions
OFF OFF OFF
1) Make sure power supplier is available, bychecking
house power supplyvoltage;
1) Make sure the water heater is turnedON, bypressing
ON/OFF button;
2)Make sure product is not in coldwater model (all 3
personal model icons off means that the product is in cold
water model)
3) Make sure water pipe connection is right (inlet on right,
outlet on left).
ONONON
1) Make sure the wate flow rate is not too big(over
6L/min), byreducingthe flow rate through water valve
regulation;
ONOFF OFF 1) Make sure the "test" button is not mistakenlypressed, b
y
pressingthe "reset" button.--only for models with ELCB.
display
"E*"
ONOFF 1) Stop touse water heater, call service technician.
/ Blinking/1) Stop touse water heater, call service technician.
1) Make sure temperature settingis not too small, by
choosinghigher temperature setting.
2)Make sure the wate flow rate is not too big(over
6L/min), byreducingthe flow rate through water valve
regulation;
if flow rate too big, the outlet temperature indicatedon
screen duringheatingwill not be able toreach the setting
temperature.
3) Measuringthe actual voltage WHEN heatingtomake
sure voltage drop not too big.
Byincreasingsectional area of, or reducinglength of the
power supplycable couldimprove the problem.
4)Make sure power supplier voltage not too small, by
checkinghouse power supplyWITHOUT heating.
ONONOFF
ON
Water cold, no
temp increase
(Flow rate
normal)
Water temp
increased, but
not warm
enough
ONON

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Problem Screen
display
ELCB
lamp
(if any)
Heating
Iconchecking actions
1) Make sure the water pressure is bigenough toprovide
you confortable water flow rate.(for water heater without
pump, water tankshouldbe at least 3meters higher than
water heater)
2)Make sure there are nodirtyblocks the water flow, by
cleaningthe filter, which is built in the water valve.
3) Make sure there are nodirtyblocks the nozzles of
shower head.
4)Make sure there are nobottle neckBetween the water
inlet pipe andthe main water supplier point;
Triangle icon
blinking
///1) Checkif inlet temp higher than settingtemp.
house light
frickering
when heating
ONONON
1) Measuringthe actual voltage WHEN heatingtomake
sure voltage drop not too big. (voltage drop shouldbe less
than 10%).
Byincreasingsectional area of, or reducinglength of the
power supplycable couldsolve the flickeringproblem.
Flow rate too
small ///

TECHNICAL DATA
For technical characteristics, please refer to the appliance data plate.
WARNING
1. Products manufactured by us are safe when they are installed, used and maintained in accordance
with our instruction and recommendations. Always refer to this manual if you have any doubt.
2. The appliance must be earthed. Improper grounding could cause electrical shock.
3. If any of the follow conditions occur, immediately switch off the mains and contact to Ariston service
agent for repair. Never attempt to repair the unit yourself.
- ELCB and Heater lamps do not light up.
- The Heater begins to make an odd noise, smell or smoke.
- Water temperature cannot be controlled.
- The heater shower signs of a distinct change in performance.
- If found water leakage from inside.
4. When the shower is usedby someone such as child, elderlyperson, sickperson andphysically
handicapped person, the person concernedis kindlyrequestedtopayattention andcheckthe shower
temperature by hand from time totime.User is advisedtotest andadjust the water temperature
before using.
5. During lighting/thunder, switch off the electric supply in advance to protect the shower unit against
possible damage.
6. The earth continuityconductor of the electrical installation must be effectivelyconnectedtoall exposed
metal parts of the appliance and services in the room, which the heater is to be installed to conform
to local regulations and ensure proper earthing/grounding for ELCB to be effective.
7. Shower head must be descaled regularly.
8. Do not switch on if there is a possibility that the water in the heater is frozen.
9. No control valve or fitting can be fitted to the water outlet.
10. User is advised to test and adjust the water temperature before bathing.
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Product code
Model description
Rated voltage
Áp lực nước tối đa/ tối thiểu:
xx
xx xx
xx/xx
xx
Rated power
Min./Max.water pressure

1. Installation must be carried out by qualified personnel and in compliance to
the local authority regulations.
2. This heater must be permanentlyconnectedtothe direct main current supply.
The use of a plug and socket is not recommended.
3. For the correct size of wire conductor corresponding to different electrical
loading, please refer to table1.
4. This heater operates at a minimum water pressure of 30kPa and 20kPa for
without pump model and with pump model, respectively and at a maximum
water pressure of 380kPa.
5. This heater will not function if there is insufficient water flow to trigger the
flow switch.
7. The thermostat will automatically cut off the power supply if it has sensed
an abnormal rise in showering water temperature. Only qualified technicians
are allowed to reset the thermal cut-out built inside the appliance.
8. To avoid accidentally scalding, user is advised to operate the heater under
a water pressure above 30kPa at the inlet.
1. Select a suitable position in the bathroom.
Caution before
installation!
INSTALLATION INSTRUCTION
Install the
appliance
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6. The built-in ELCB will automatically cut off the power supply in case there
is a current leakage above 15mA. (ELCB model only.)
2. Remove the 2 screws at the bottom and 1 screw at the top of the unit(refer to
Fig. 2b), then open the front cover.
3. Mark the screw points of the heater base on the wall. The heater position
should be 1.5 meter from the bathroom floor.
4. Markthe screws points of the slider rail set beside the heater. It is
recommended the top of the portion is in same level with the top of the heater.
5. Use 6mm diameter drill and make the wall plug holes for heater and shower
accessory to 35mm depth.
6. Insert the wall plugs and mount the heater firmly in position with the screws
provided.
7. To mount shower accessory, remove the terminal cover from the mounting
terminal andscrew the mountingtoposition.Close the cover.Insert the shower
holder and soap tray into the slider rail. Mount the slider rail to the mounting
terminal and screw the second mounting to position. Close the cover.

*THE WATER INLET AND OUTLET MUST BE INSTALLED CORRECTLY;
OTHERWISE THE HEATER CAN NOT FUNCTION.
*DO NOT USE PLUMBING CEMENT ON CONNECTION. IF NECESSAY, USE
ONLY THREAD OR SEALING TAPE.
1. Connect the stop valve to the water inlet with rubber washer. Use correct
tools to tighten and be careful not to break the plastic nut.
2. Connect the incoming water piping end to the
stop valve (1/2’’ BSP).
3. Connect the soft hose and hand shower to the outlet of the heater; be sure
to put in the rubber washer.
4. Hook the hand shower to the shower hanger and adjust to your ideal position.
IMPORTANT: the ‘Water Outlet’ can only be fitted to the soft hose
and hand shower set provided. NO CONTROL VALVE OR FITTING
CAN BE FITTED TO THE WATER OUTLET.
In the condition of without power supply, turn on the water mains to drain out all
plumbing dirt and to fill up the heater tank. Check for any water leakage.
IMPORTANT: this step will prevent damage to the heating element.
Water
connection
Testing
connection
Electrical
connection
IMPORTANT WARNING
-This appliance must be EARTHED. Improper grounding could cause
electrical shock.
Additional electric switch should be far away from the water heater (out
of reach of shower spray).
-Remember to switch off at mains before carrying out any electrical work.
1. Use double coated flexible cable having nominal cross-sectional area which
could be seen in table 1.
2. lead the power cable from the circuit breaker to “ON/OFF” double bipolar
switch (which having a contact opening at least 3mm in all poles) outside the
bathroom, then lead a cable connected to terminal blockinside the unit(fig.3a).
3. Insert the cable through core hitch ‘A’ for side entry or hole ‘B’ below the
bottom cover for wall embedded cable (fig.3b).
4.Connect the cable to terminal block and fully tighten them as follow(Fig. 3b).
BROWN or RED for LIVE (L)
BLUE or BLACK for NEUTRAL(N)
GREEN or GREEN/YEOLLOW for EARTH(E)
5. Make sure the wiring connection is tight, then close the front cover.
6. Fix back the screws.
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Starting IMPORTANT:
THE HEATER TANK MUST BE FILLED UP WITH WATER BEFORE TURN
ON THE ELECTRICITY SUPPLY THIS IS TO PREVENT ANY DRY BURNT
DAMAGE TO THE HEATING ELEMENT.
SHOULD TURN OFF THE HEATER
BEFORE TURN OFF THE STOP VALVE.
OTHERWISE, IT WILL COME OUT A PERIOD OF HOT WATER IFRESTART
THE HEATER IN SHORT TIME, OR CAUSE CONFUSION ON OPERATION
LOGIC DUE TO SPECIAL DESIGN.
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The outlet temperature might be unstable if the inlet water pressure or the voltage
change sharply.
1. Turn on the water supplyandthe stop valve, andthen wait until the water flow
through the hand shower.
2. Switch on the electrical supply and the ELCB lamp will light on.
3. Press the ON/OFF button, the heater will begin toworkandhot water will come
out in a few seconds.Change the settingtemperature by press the “+”or “-”button,
the higher the temperature setting, the hotter is the shower.
4.Press the icon person 1/2/3, it will go to the related setting temperature. This
settingvalue will be memorizedeven if power off.
5. The outlet temperature may not be able to reach the setting temperature if
the incoming water supplyfrom the mains is too coldor the flow rate is too high.
In this case, you can reduce the water flow rate which will leadtoincrease the
outlet temperature, but it is still not necessarily able to reach the setting
temperature in case the water supply really cold.
6. The built-in ELCB will self-check every time when using the product.
7. The height and the direction of the shower holder are adjustable. Depress
the release button and slide the shower holder to the desired position. Move
the handshower tothe desiredangle.Aratchet mechanismin the shower holder
will holds the hand shower in the selected position (fig.4).
8.Press the ON/OFF button to turn off the power, then turn off the water valve.
For pump model:
Long press ON/OFF button for 4 seconds, activate/deactivate pump function.

HMI Explanation
ON/OFF button
Press this button to turn on/off the heater.
Temperature setting button Press “+” / “-” to increase/reduce the setting temperature.
ELCB lamp This lamp keeps on when ELCB function works properly, it will blink if detects current leakage.
Personal setting button Each button could remeber one setting temperature even if power off, to get the previous setting value by press the corresponding icon.
Inlet high temperature warning The triangle icon will blink and heater stops heating when the inlet temperature is higher than the setting temperature.
Temperature display Display the outlet temperature, or display the setting value during setting.
Heating icon This icon keeps on when it’s heating water
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