Manual Nefit AM10 (page 5 of 20) (English, German, Dutch, French, Italian, Spanish)

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2 User manual AM10 (en)

AM10 – 72154300 (2015/09)

2 User manual AM10 (en)

2.1 Introduction

The AM10 is a simple, outdoor temperature-controlled regulator with a

linear heating curve. The heating is switched on or off, depending on the

On/Off input.

2.2 Heating curve (

fig. 1)

The heating curve shows the correlation between the outdoor

temperature (D) and the flow temperature (E). This is a straight line,

which can be described by two points (A and B). Point A is the flow

temperature when the outdoor temperature is -10 °C and point B is the

flow temperature when the outdoor temperature is +20 °C. C is the flow

temperature set on the boiler (Æ fig. 1).

The flow temperature requested by the AM10 can never be higher than

the flow temperature set on the boiler. This is why you are advised to

adjust the flow temperature on the boiler (line C) to its maximum value,

unless there is a reason to deliberately limit the flow temperature, for

example with floor heating.

2.3 Operation (

fig. 2)

You can use the "mode" key (Æ fig. 2, [1]) to select the various menu

items ; a dash (Æ fig. 2, [2]) in the display

marks the symbol which corresponds with the relevant menu item.

When a menu item can be set, its value will flash. The value can then be

changed using the “+”and “–” keys (Æ fig. 2, [3]). The settings will be

retained even in the event of a power cut. If the display is not operated

for 10 seconds, the idle display (outdoor temperature) will be shown

automatically. If a locking fault occurs, the display code will be shown

(flashing).

The following additional symbols can be shown in the display:

2.4 Description of the settings

Idle display (

fig. 3)

The current outdoor temperature is shown (i.e. 18 °C) and the

corresponding symbol is marked. The AM10 has registered a heat

demand and the boiler is in heating mode .

Flow temperature setpoint (

fig. 4)

The second menu item R was selected using the “mode” key. This is

the flow temperature requested by the AM10. Range: 0 - 90 °C.

End point of the heating curve (

fig. 5)

The symbol was selected using the “mode” key. This is the end

point of the heating curve which equals an outdoor temperature of

-10 °C. The value is flashing and can be changed using the “+”and “–”

keys.

Adjustment range: 20 - 90 °C.

Factory default setting: 90 °C.

Starting point of the heating curve (

fig. 6)

The symbol was selected using the “mode” key. This is the starting

point of the heating curve which equals an outdoor temperature of

+20 °C. The value is flashing and can be changed using the “+”and “–”

keys.

Adjustment range: 20 - 90 °C.

Factory default setting: 20 °C.

Summer/winter switch-over (

fig. 7)

The summer/winter switch-over temperature was selected using

the “mode” key. This is the highest outdoor temperature at which the

heating is in operation. The value is flashing and can be changed using

the “+”and “–” keys.

Adjustment range: 0 -30 °C.

Factory default setting: 16 °C.

Faults (

fig. 8)

The boiler is locked. In idle position, a flashing boiler display code is

shown instead of the outdoor temperature and the spanner is displayed

. The parameters can still be set by selecting the relevant parameter

with the “mode” key. However, in idle mode a display code continues to

show while there is still a fault in the system.

The installation instructions for your boiler indicate what the various

codes mean and which procedure is to be followed.

Fault code 5H

This is a communication fault. Check the connection to the boiler.

Sensor fault/emergency operation (

fig. 9)

If no outdoor temperature sensor is connected to the AM10, the AM10

has no value on which it can base its regulation operation and the

numeric field will show dashes instead of the outdoor temperature.

If there is a heat demand, (the display shows ), the AM10 will

request 50 °C, if this is permitted by the maximum temperature

setpoint. The value is limited to the maximum flow value set on the boiler

and to the end point of the heating curve.

2.5 Product datasheet on energy consumption (ErP)

The following product data complies with the requirements of

EU Regulations 811/2013, 812/2013, 813/2013 and 814/2013 as

supplement to the Directive 2010/30/EU.

Symbol Meaning

Flame

Boiler in heating mode

Switch contact Heat demand on input AM10

Spanner Boiler locked (fault)

Part

number

Product

type

Class of the

temperature

control

Contribution of the

temperature control to

seasonal space heating

efficiency

7108405 WDM

(AM10)

II 2,0 %

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