background image

(Freezing

protection)

electric heater it warms the water in the tank to avoid freezing while the solar pump
discharges the heat from the  water heater, in order to protect the solar collector as
well.

Solar protection

Prevents eventual overheating of the solar collector. If the solar  collector thermo-
sensor (t3) is not operating (not working), the solar pump shall be turned on constantly
to avoid any possible overheating.

Holiday

The water heater is in  manually activated 

Holiday mode

, which aims unloading the

accumulated heat during the night so that the next day when reheated by the sun
overheating of the solar collector is prevented.

Standby

The electric heater is switched off.

4.2 Information field (Fig. 3)

Basically in this field is displayed the date starting with the day of the week in the following format:
DD/MM/YYYY. Upon registration of a failure of the self-test system, in the bottom line field shall
alternate the date and the (error) message while a clear sound shall be audible as well.

 

The (error)

messages are listed in Table 6:

Table 6 - Information field messages

Message

Description

No information!

At the moment there is no information concerning new issues or errors

Switch on Holiday

mode

Switched on mode for discharge of the heating energy collected in the water heater
during the day. (Holiday mode).

Solar anti-frost

Switched on mode for protecting the solar collector against freezing.

Freezing protection

of the boiler

Switched on mode for protecting the water heater from freezing.

Error reading image

Error   during   downloading  an   image   from  the  schematic   diagram  of   the  heating
system to the main screen.

Disconnected S1

Failure of  the bottom thermal sensor  of  the water  heater  (t1).  It may  be either
interrupted/disconnected or switched off.

S1 

in short-circuit

Failure of the bottom thermal sensor of the water heater (t1). It is in short-circuit.

Disconnected S2

Failure of  the bottom thermal sensor  of  the water  heater  (t2).  It  may be  either
interrupted/disconnected or switched off.

S2 

in short-circuit

Failure of the top thermal sensor of the water heater (t2). It is in short-circuit.

Disconnected S3

Failure   of   the   solar   collector   thermal   sensor   (t3).   It   may   be   either
interrupted/disconnected  or switched off.

 

Only the modes with electric and boiler

heating   shall   be  operative.

  In  this   situation  the   solar  installation   circulation

pump will work continuously to protect the solar collector from overheating!

S3 

in short-circuit

Failure of the solar collector thermal sensor (t3). It is in short-circuit. Only the modes
with   electric   and   boiler   heating   shall   be   operative.

  In   this   situation   the   solar

installation   circulation   pump   will   work   continuously   to   protect   the   solar
collector from overheating!

16

Содержание NHC-H52M-1S

Страница 1: ...ation and operation instruction attached to your water heater unit All of the general instruction requirements concerning the water heater installation and connection to the water supply and electrici...

Страница 2: ...e listed in Table 2 Table 1 Models and features of the electronic units NHC H52M 1S NHC H52M 2 Thermostat control of the utility storage water electric heater heaters Control of the utility storage wa...

Страница 3: ...eater Each interval can be set in any day of the week to switch on and to what temperature water can be heated Control of the solar collector circulation pump power depending on the temperature differ...

Страница 4: ...tional protective conductor that never should be interrupted and or connected on the layout from the electric panel to the tank Otherwise the appliance shall not be correctly earthed and it shall redu...

Страница 5: ...unit will not work and it is very possible to damage it and increase the risk of electric shock It is necessary to secure the power cord to the power circuit of the water heater and the power cord fr...

Страница 6: ...wires in water heaters designed for wall mounting with one heat exchanger Fig 1 and with two heat exchangers Fig 2 The power cord phase conductor connects to the thermal cut out terminal labeled A1 or...

Страница 7: ...Fig 2 Single phase connection of water heaters with two heat exchangers NHC H52M 2 3 DISPLAYS SETTINGS MENUS 3 1 Main display graphics and indications Fig 3 7...

Страница 8: ...do not make any changes for a longer period between 20 seconds and 5 minutes depending on the settings menu you will automatically exit the selected menu without saving any changes made The only excep...

Страница 9: ...protection against overheating of the solar collector by automatically switching to Holiday mode to discharge the stored energy 3 5 2 On All authorized heat sources shall be switched on see menu Heati...

Страница 10: ...line but in column Off on the same line When this pump works the circulating pump on the image of the boiler on the display will rotate To protect the water tank from overheating the circulation pump...

Страница 11: ...h off There is one more operation mode for the boiler pump set from the menu Heating Installation row Boiler Pump Mode CH Priority When this mode is activated in the menu Pumps control shall be used t...

Страница 12: ...erature and it will switch on if the temperature of the lower thermo sensor t1 drops by 5 degrees less than the temperature set in Temp The timer allows exclusion of certain days of the week during wh...

Страница 13: ...temperature that can be used for any household needs but at the same time if there is a strong sun it can take as well its heat 3 10 Pumps control Temperature settings for switching on and off the pum...

Страница 14: ...accumulated heat in the water tank when you activate Holiday mode the temperature will be reduced to the value set in this field Use boiler pump NHC H52M 2 When this field is checked the discharge of...

Страница 15: ...rature settings ATTENTION When for long periods you do not use hot water and the sun is strong enough do not disconnect the water heater from the apartment electricity panel This can damage the standi...

Страница 16: ...y collected in the water heater during the day Holiday mode Solar anti frost Switched on mode for protecting the solar collector against freezing Freezing protection of the boiler Switched on mode for...

Страница 17: ...d date to when the thermostat is working before you interrupted power supply Power supply on Time and date when the power supply is restored These messages will be registered only if the system clock...

Страница 18: ...creen is the date concerning the information displayed while at the bottom is provided a summary for the day 4 5 Information By pressing the button Enter after the state Statistics by the hours shall...

Страница 19: ...thermostat shall continuously monitor the temperature as the water in the water tank and the solar collector If necessary the protection mode shall be switched on for Anti freezing protection of the...

Страница 20: ...late a new heat in order to discharge the solar collector The pump will operate until the temperature in the tank falls below the temperature set in Solar protection line Tank min temp This mode is in...

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