Danfoss CF-MC Installation guide
MAKING MODERN LIVING POSSIBLE
Installation Guide
CF-MC Master Controller
DANFOSS HEATING SOLUTIONS
Installation Guide CF-MC Master Controller
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01/2016 VIUHK902 Danfoss Heating Solutions
Installation Guide CF-MC Master Controller
Content
1. Introduction .................................................................. 4
2. CF2+ System Overview......................................................... 4
3. Functional Overview .......................................................... 4
4. Mounting and Installation Procedure (Sequential)............................... 4
4.1 CF-MC Master Controller......................................................... 4
4.2 24 V Actuators................................................................... 5
4.3 Relays for Pump and Boiler Control............................................... 5
4.4 Input for Away Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.5 Input for Heating and Cooling ................................................... 5
4.6 Wiring .......................................................................... 5
4.7 Power Supply ................................................................... 5
4.8 CF-EA External Antenna ......................................................... 5
4.9 More (2 to 3) CF-MC Master Controllers........................................... 6
4.10 CF-RS, -RP, -RD and -RF Room Thermostats ....................................... 6
4.11 Other System Components ...................................................... 6
4.12 Transmission Test (Link Test) ..................................................... 6
4.13 Mounting of CF-RS, -RP, -RD and -RF Room Thermostats .......................... 7
5. Temperature Settings ......................................................... 7
5.1 CF-RS Room Thermostat ........................................................ 7
5.2 CF-RD and CF-RF Room Thermostat with Digital Display . . . . . . . . . . . . . . . . . . . . . . . . . 7
6. Configuration................................................................. 8
6.1 Actuator Outputs................................................................ 8
6.2 Relays for Pump & Boiler Control ................................................. 9
6.3 Input for Away Function and Heating & Cooling .................................. 9
6.4 Heating/Cooling ................................................................ 9
6.5 Relays on more (2-3) CF-MC Master Controllers................................... 9
6.6 Wireless relay ................................................................... 9
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7. Replacing/Resetting the CF-MC Master Controller ............................... 10
7.1 When? .......................................................................... 10
7.2 How? ........................................................................... 10
8. Technical Specifications ....................................................... 11
8.1 CF-MC Master Controller......................................................... 11
8.2 CF-RS, -RP, -RD and -RF Room Thermostats ....................................... 11
9. Troubleshooting .............................................................. 12
9.1 CF-MC Master Controller......................................................... 12
9.2 CF-RS, -RP, -RD and -RF Room Thermostats ....................................... 12
Figures and illustrations
A1 ................................................................................. 14
A2 ................................................................................. 15
B1 ................................................................................. 16
B2 ................................................................................. 17
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Installation Guide CF-MC Master Controller
1. Introduction
The CF-MC Master Controller is a part of the new trend-setting CF2+ wireless hydronic floor heating
control system from Danfoss. Based on 2-way wireless communication technology CF2+ offers high
transmission safety, easy wireless installation, a high level of individual room temperature control,
and thus optimal comfort and improved energy efficiency.
The system has a variety of beneficial features and easily accessed application functionalities. This
includes a CF-MC Master Controller with short-circuit protected outputs, regulation by Pulse Width
Modulation (PWM) principles, away function, separate relays for both pump and boiler control, selfdiagnostic program and error indication, wireless transmission (link) test possibility on each type of
Room Thermostat, easy wireless system access and extended functionality via the optional CF-RC
Remote Controller, and CF-RU Repeater Unit for extended wireless range.
2. CF2+ System Overview (fig. 1)
1a) CF-MC Master Controller.
1b) CF-RS, -RP, -RD and -RF Room Thermostats.
1c) CF-RC Remote Controller.
1d) CF-RU Repeater Unit.
1e) CF-DS Dew-point Sensor.
1f) CF-WR Wireless Relay.
1g) CF-EA External Antenna.
3. Functional Overview (fig. 2)
Menu selection button.
Menu LEDs.
Output and configuration selection button.
OK button.
Output LEDs.
Output cable fixing.
Relays for pump and boiler.
Input for heating/cooling (external ON/OFF switch).
Input for away function (8 °C) (external ON/OFF switch).
Input for PT1000 pipe sensor.
Front cover release.
External antenna connection.
4. Mounting and Installation Procedure (Sequential)
The wireless systems transmission range is sufficient for most applications; however wireless signals
are weakened on the way from the CF-MC Master Controller to the Room Thermostats and each
building has different obstacles.
Checklist for optimal installation and best wireless signal strength (fig. 3):
• No metal objects between the CF-MC Master Controller and the Room Thermostats.
• Wireless signal through walls on shortest possible diagonal distance.
• Optimise the wireless signal by installing a CF-RU Repeater Unit.
Note! Danfoss recommends that an installation plan is made before beginning the actual installation.
4.1 CF-MC Master Controller
Mount the CF-MC Master Controller in an horizontal upright position.
Wall:
• Remove the front cover (fig. 4).
• Mount with screws and wall plugs (fig. 5).
DIN-Rail:
• Mount DIN-rail parts (fig. 6).
• Click on DIN-rail (fig. 7).
• Release from DIN-rail (fig. 8).
Important! Complete all the installations on the CF-MC Master Controller described below, before
connecting to a 230 V power supply!
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Installation Guide CF-MC Master Controller
LNL
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4.2 24 V Actuators
• Connect the two actuator wires to an output (fig. 9).
• Fix the cable - round cable (fig. 10), squared/flat cable (fig. 11).
Note! If NC (normally closed) actuators are installed for Pulse Width Modulation (PWM) regulation for
floor heating, no further actuator output configuration is needed (see chapter 6.1).
4.3 Relays for Pump and Boiler Control
• Pump: Connect the live wire (L) across the Pump Relay from an external power supply. Make
sure the power supply is switched off. Then connect the live wire, and complete other connec tions to the pump in accordance with existing law (fig. 12).
• Fix the cable (fig. 13).
• Boiler: Connect the live wire (L) across the Boiler Relay from an external power supply. Make
sure the power supply is switched off. Then connect the live wire, and complete other
connections to the boiler in accordance with existing law.
Note! The relays for pump and boiler are potential free contacts and can therefore NOT be used as direct
power supply. Max. load is 230 V and 8 A/2 A (inductive)!
4.4 Input for Away Function
• Connect the two wires from an external switch (ON/OFF) to the two terminals for the Away Func tion input (fig. 14).
When this switch is closed (ON) the system will override the current set point for all the room
thermostats and change it to 8 °C.
• Fix the cable (fig. 15).
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Note! The Away Function ensures a set room temperature fixed at 8 °C for all Room Thermostats, but it
can be changed with the CF-RC Remote Controller.
If the system is configured for cooling, a dew-point sensor can be connected instead of an external switch.
4.5 Input for Heating and Cooling
• Connect both wires from an external switch (ON/OFF) to the terminals for heating and cooling
input (fig. 16).
With the switch closed (ON), the system will switch from heating to cooling mode.
• Fix the cable (fig. 17).
Note! With the system in cooling mode, the actuator output will be activated (ON for NC actuators/OFF
for NO actuators), when the temperature in a room exceeds the set point +2 °.
When the system is in cooling mode a dew-point sensor should be installed, connected to the Away Function input and placed on the primary supply side.
4.6 Wiring
Input Relays Actuator outputs
PT1000
Away Function
External
antenna
Heating/Cooling
Max. 3 m
910876 54321
4.7 Power Supply
Connect the CF-MC Master Controller power supply plug to a 230 V power supply, when all actuators, pump and boiler controls and other inputs are installed.
Note! If the power supply plug is removed from the power supply cable during installation, ensure that the
connection is made according to existing law/legislation.
4.8 CF-EA External Antenna
The CF-EA External Antenna is installed as diverter when there is no transmission possible through a
large building, heavy construction or metal barrier, e.g. if the CF-MC Master Controller is located in a
metal cabinet/box.
• Remove the plastic cover from the antenna connection on the CF-MC Master Controller (fig. 18).
• Connect the CF-EA External Antenna (fig. 19).
• Place the CF-EA External Antenna on the other side of the transmission barrier away from the
CF-MC Master Controller.
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Installation Guide CF-MC Master Controller
4.9 More (2 to 3) CF-MC Master Controllers
Note! To have a troublefree installation of the CF-MC Master Controller 2 and/or 3, it is recommended to
complete installation of the CF-MC Master Controller 1.
CF-MC Master Controller 1 should be the one connected to the local supply pump.
• Up to 3 CF-MC Master Controllers can be connected in one system.
• If there are 2 or 3 CF-MC Master Controllers, connect them to a 230 V power supply within a
distance (max. 1.5 m) from CF-MC Master Controller 1, allowing simultaneous handling of all the
CF-MC Master Controllers.
Activate Install mode on CF-MC Master Controller 1 (fig. 20):
• Use the menu selection button to select the Install mode. Install LED flashes.
• Activate Install mode by pressing OK . Install LED goes ON.
Initiate installation on CF-MC Master Controller 2 or 3 (fig. 20):
• Activate installation to CF-MC Master Controller 1 by pressing OK .
• Install LED flickers during communication and goes OFF when installation is complete.
• Relocate CF-MC Master Controller 2 and/or 3 if necessary. Link test will be initiated automati-
cally on reconnection to 230 V power supply.
• If CF-MC Master Controller 2 and/or 3 has it’s own pump, the relays for pump and boiler must
be configured accordingly (see chapter 6.5).
Note! Later removal of CF-MC Master Controller 2 or 3 from CF-MC Master Controller 1 can only be done
by resetting CF-MC Master Controller 1 (see chapter 7.2).
4.10 CF-RS, -RP, -RD and -RF Room Thermostats
Note!
Assignment of Room Thermostats to CF-MC Master Controller should be within a distance of 1.5 m.
Activate Install mode on CF-MC Master Controller (fig. 20):
• Use the menu selection button to select the Install mode. Install LED flashes.
• Activate Install mode by pressing OK . Install LED goes ON.
Activate Install mode on CF-RD and -RF Room Thermostats (fig. 20/21):
• Press the push button . LED and flicker during communication.
Activate Install mode on CF-RS and -RP Room Thermostats (fig. 20/21):
• Press the push button / . LED and flicker during communication.
Select output on CF-MC Master Controller (fig. 20/22):
• All available output LEDs on CF-MC Master Controller light up, and the first one flashes.
• Press output selection button to select desired output (flashes). Accept with OK .
• All output LEDs go OFF. Selected output stays ON shortly.
Room Thermostat installation status (fig. 21):
• Satisfactory: LED goes OFF.
• Not satisfactory: LED flashes 5 times.
Note!
A Room Thermostat can be assigned to several outputs if needed by repeating the installation process.
4.11 Other System Components
The installation procedure of other system components to the CF-MC Master Controller (CF-RC Remote Controller, and CF-RU Repeater Unit) is described in the enclosed instructions for these system
components.
4.12 Transmission Test (Link Test)
The transmission test (link test) between the CF-MC Master Controller and other system components,
is initiated from the other system components like CF-RU Repeater Unit, CF-RC Remote Controller,
etc. See the enclosed instruction for these components for transmission test (link test) procedures.
Room Thermostats
When the transmission test (link test) from a Room Thermostat is received by the CF-MC Master
Controller, the assigned output(s) will flash. This makes it possible to identify the outputs to which a
Room Thermostat has been assigned (fig. 22 - ).
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01/2016 VIUHK902 Danfoss Heating Solutions
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