Bedienungsanleitung ACV Watermaster (Seite 10 von 54) (Englisch)

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* In case of complex systems, the setup must be performed by an approved installer using the Installer’s Handbook.

Boiler Protection

DHW

84°C

61°C

Target = 85°C

WaterMaster EZ Setup

Heating EZ Setup

DHW EZ Setup EZ Setup Reset Display EZ Setup

WaterMaster 25 - 35 - 45 - 70 - 85 - 120 : A1006482 - 664Y7300 • D

USER’S GUIDE

WATER HEATER SETUP GUIDE

The main parameters of the WaterMaster water heaters can be set up using the EZ (easy) setup function

of the ACVMax controller. The EZ setup function allows the user/installer to quickly setup the appliance

for immediate operation according to the system conguration*.

General remarks

• To navigate on the screen, use the UP, DOWN, LEFT and RIGHT keys, then the OK key

to validate a selection. A selection is marked by a black background under the selected

icon/text.

• To increase/decrease values, use the UP and DOWN keys or the LEFT and RIGHT keys

according to the situation.

WHAT TO CHECK ON A REGULAR BASIS

Essential recommendations for the correct operation of the appliance

ACV recommends to check the system at least every 6 months as follows:

• Check that the system water pressure is at least 1 bar when cold. If the pressure drops

below 0.7 bar, the built-in pressure sensor blocks the appliance until the pressure

exceeds 1.2 bar.

• If it is required to top up the system to maintain the minimum recommended water

pressure, always turn the appliance off and only add small amounts of water at a time. If

a large amount of cold water is added in a hot appliance, the appliance can be damaged

definitively.

• If the system needs to be refilled repeatedly with water, please contact your installer.

• Check that there is no water on the floor under the appliance. If there is, please call your

installer.

• If a condensate neutralisation system is installed, check it and have it cleaned regularly.

• Check regularly that there is no error message (lockout) on the screen. A typical lockout

screen is explained on the previous page. Refer also to the Troubleshooting table below

or call your installer as required.

IN CASE OF PROBLEM...

Check the list of faults and corresponding codes below to get the solution(s). If no solution is provided here,

please contact your installer who will determine the correct solution by referring to”Locking codes” on page 47.

Fault

code Problem Possible Cause(s) Solution

The appliance does

not turn on when

pressing the ON/OFF

Master switch

No power supply

Check the power supply and that

the appliance power plug is con-

nected to the network.

E 01 Failed ignition The burner failed to light af-

ter 5 ignition attempts

Check gas supply to the water heat-

er.

E 13 Reset limit reached Resets are limited to 5 every

15 minutes

Turn unit OFF and ON to resume

normal operation.

E 34 Low voltage

Line voltage has fallen be-

low an acceptable operating

level

The water heater will automatically

reset once line voltage returns to

normal.

E 37 Low Water

Water pressure has fallen

below an acceptable oper-

ating level (0.7 bar)

Rell the system to reach a normal

range pressure. The water heater

will automatically reset once water

pressure returns to normal.

E 94 Internal Display Fault Display memory error Turn appliance o and on to re-

sume normal operation.

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