Buderus AM10 Bedienungsanleitung
for the user
Read carefully before
installation and use
pour l'utilisateur
Lire attentivement avant
l'installation ou
l'utilisaton
para el usuario
Read carefully before
installation and use
Installation and user manual
Guide d'installation et d'utilisation
Instrucciones de montaje y servicio
Controller
Commande
Controller
mode
°F
888
modulating outdoor reset control AM10
commande modulante extérieure de
réinitialisation AM10
modulating outdoor reset control AM10
7218 6100 (05/2007) US/CA/MX
contents / table des matières / índice de contenido
AM102
Contents 3
1 Installation manual 3
1.1 Description of Module 3
1.2 Outdoor reset 4
1.3 Mounting of the AM10 4
1.4 Single Boiler Control 7
1.5 Multiple Boiler Control 8
1.6 Domestic Hot Water 9
2 User Manual 10
2.1 Introduction 10
2.2 Heating characteristic 10
2.3 Operation 10
2.4 Description of the settings 11
2.5 Faults 13
Table des matières 14
1 Guide d'installation 14
1.1 Description du module 14
1.2 Réinitialisation extérieure 15
1.3 Montage de l'AM10 16
1.4 Commande de chaudière simple 18
1.5 Commande pour chaudières
multiples 20
1.6 Eau chaude domestique 21
2 Guide d'utilisation 22
2.1 Introduction 22
2.2 Caractéristique de chauffage 22
2.3 Fonctionnement 22
2.4 Description des réglages 23
2.5 Défaillances 25
Índice de contenido 26
1 Instrucciones de montaje 26
1.1 Description of Module 26
1.2 Outdoor reset 27
1.3 Mounting of the AM10 27
1.4 Single Boiler Control 30
1.5 Multiple Boiler Control 31
1.6 Domestic Hot Water 32
2 User Manual 33
2.1 Introduction 33
2.2 Heating characteristic 33
2.3 Operation 33
2.4 Description of the settings 34
2.5 Faults 36
AM10 - We reserve the right to make any changes due to technical modifications! 3
Installation manual 1
Contents
1 Installation manual
1.1 Description of Module
Product description
The AM10 is a modulating control for Buderus
boilers equipped with the EMS bus. It sets the
supply water temperature based on outdoor
temperature. The boiler fires, runs and modu-
lates based on the information received from
the AM10, and the delta temperature between
supply and return.
An ON/OFF signal from third party room ther-
mostats or zone controllers is used to commu-
nicate a heat demand.
The AM10 offers warm weather shutdown
(WWSD) when the outdoor temperature rises
above a custom settable temperature.
To control and stage two boilers, combine the
AM10 with a CM10 module (see page 8).
Fig. 1 Set includes
2 x
2 x
2 x
4 x
3 x
mode
°F
Installation manual
AM10 - We reserve the right to make any changes due to technical modifications!4
1
1.2 Outdoor reset
Outdoor reset is a smart way to economically
control space heating based on outdoor tem-
perature. It functions based on the fact that the
colder the weather the greater the heat loss of
a structure, and the higher the supply water
temperature needed to heat the house. On a
warmer day with smaller losses a lower water
temperature will be able to heat the house.
Outdoor reset is the preferred control when
using multiple zones, as the boiler supply
water temperature is not dictated by a master
or largest zone, but solely based on the heat
loss of the structure.
Heating curve
The AM10 has a built in linear heating curve
that sets the supply water temperature in rela-
tion to the outdoor temperature.
The maximum supply water temperature set
on the boiler dial works as a high limit. The
boiler will follow the heating curve in the AM10
up to the high limit.
1.3 Mounting of the AM10
The AM10 module should be mounted inside
a GB142 boiler above the controls.
Outside
temperature
design day
Supply
temperature
Default 14 °F 167 °F
Example 1 0°F 170 °F
Example 2 -10 °F 175 °F
Example 3 -20 °F 180 °F
Fig. 2 Installation
AM10 - We reserve the right to make any changes due to technical modifications! 5
Installation manual 1
EMS-Bus
Thermostat
Outdoor sensor
Fig. 3 EMS-Bus
Fig. 4 Thermostat
On/Off
mode
°F
L
L ≤100 ft.
R ≤100 Ω
Ø = 18 AWG
Ø
Fig. 5 Outdoor sensor
mode
°F
L
L ≤100 ft.
R ≤100 Ω
Ø = 18 AWG
Ø
Installation manual
AM10 - We reserve the right to make any changes due to technical modifications!6
1
Positioning of the outdoor sensor
For best performance the outdoor sensor is to
be positioned where the sun can never reach
it. Mount only on a North facing wall of the
building out of the sunlight, with at least 1 foot
above snow line. Keep the sensor away from
heat sources like dryer, water heater, or boiler
vents, windows, etc.
[°F] [kΩ][°F] [kΩ][°F] [kΩ][°F] [kΩ]
-40 336.5 5 72.9 50 19.9 95 6.5
-31 242.6 14 55.3 59 15.7 104 5.3
-22 177.0 23 42.3 68 12.5 113 4.4
-13 130.4 32 32.7 77 10.0 122 3.6
-497.14125.486 8.1
Table 1 Sensor resistance table
Fig. 6 Sensor location
☺
☺
AM10 - We reserve the right to make any changes due to technical modifications! 7
Installation manual 1
1.4 Single Boiler Control
To equip a single GB142 boiler with outdoor reset control:
Required items:
– ON/OFF thermostat for every heating zone with individual zone pump or zone valve
– Pump relay
– Wiring
If there are multiple zones, wire all thermostats in parallel for calls for heat from any thermostat
to produce a heat demand.
Fig. 7 Wiring detail
Outdoor
sensor
N
Pump Relay
HC1 C2 X X
T T
Dedicated
120 Vac
15 Amp Circuit
Neutral
Zone
valve
Line
120 Vac
Field wiring
Low Voltage
Field wiring
AM10 Module
EV
12
FW
1 21 2
WA
1 2
FA
1 2
RC
DHW Tank
Sensor
Factory
Installed
Jumper
RC 10/20 Outdoor
sensor
T T
Connection
DHW
Sensor
Safety
Limit
Orange Blue Lt Green Lt Gray Red
GB142 wire terminal strip
Terminals FA and WA
not used in this
application
12
1
2
On / Off
1 2
Do not install RC10 module when
using this configuration.
Installation manual
AM10 - We reserve the right to make any changes due to technical modifications!8
1
1.5 Multiple Boiler Control
For every two boilers install one AM10 with a
CM10 cascade module. Connect a system
supply sensor to the CM10.
The CM10 will determine if one or both boilers
need to fire and at what modulation. The
CM10 also rotates the boilers for equal run
time. For details on the CM10 module, consult
the CM10 manual.
Fig. 8 Plumbing details
1. outdoor sensor
2. pump relay
3. supply sensor
4. supply
5. return
1
2
4
3
5
Do not install RC10 module when
using this configuration.
AM10 - We reserve the right to make any changes due to technical modifications! 9
Installation manual 1
1.6 Domestic Hot Water
1 boiler 1 tank:
Use tappings on the boiler manifold, and con-
nect the tank sensor to the boiler's control
panel.
2 boilers w/ 1 tank on boiler 1
Use tappings on the boiler manifold, and con-
nect the tank sensor to the boiler's control
panel.
2 boilers w/ 2 tanks, 1 each
Use tappings on the boiler manifold, and con-
nect the tank sensor to each boiler's control
panel.
User Manual
AM10 - We reserve the right to make any changes due to technical modifications!10
2
2 User Manual
2.1 Introduction
The "AM10" is an outdoor temperature-depen-
dent controller with a linear heating character-
istic. The heating is switched on and off using
the on/off input.
2.2 Heating characteristic
The heating characteristic indicates the rela-
tionship between the outdoor temperature
and the flow temperature. This concerns a
straight line which can be described by two
points (Aand B). Point Ais the flow tempera-
ture in the case of an outdoor temperature of
14 °F and point Bis the flow temperature in
the case of an outdoor temperature of 68 °F.
Cis the high limit flow temperature set on the
boiler. See fig. 9.
The flow temperature requested by the
"AM10" can never be higher than the high limit
flow temperature of the boiler. That is why you
are recommended to set the flow temperature
on the boiler (line C) to the maximum value,
unless you deliberately want to compensate
the heating characteristic, for example by a
floor heating system.
2.3 Operation
Use the "Mode" key (fig. 10, pos. 1) to go
through the various menu items
" "; a line (fig. 10, pos. 2) on
the display indicates the active menu item.
The value of a menu item which can be set will
flash. The value can then be changed using
the plus "+" and minus "–" (fig. 10, pos. 3)
keys. The settings will not be lost if there is a
power outage.
Fig. 9 Heating characteristic
1. Flow temperature
2. Outdoor temperature [°F]
B
+68 +14 -40
C
A
1
2
Fig. 10 Display view
°F
mode
1 2 3
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3
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