Instruction CF-MC Master Controller
6
VI.UH.K2.80
Produced by Danfoss Floor Heating Hydronics 01.2006
5.3 Input for Global Standby
•
Connect the two wires from an external switch (ON/OFF) to the two termi-
nals for the Global Standby input. (fi g. 13)
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. (fi g. 14)
Note: The Global Standby ensures a set room temperature fi xed at 8°C for all
Room Thermostats, but it can be changed with the Remote Controller, CF-RC.
5.4 Input for Heating & Cooling
•
Connect the two wires from an external switch (ON/OFF) to the two termi-
nals for the heating and cooling input. (fi g. 15)
When this switch is closed (ON) the system will switch from heating to
cooling mode.
•
Fix the cable. (fi g. 16)
Note #1: When the system is in cooling mode the actuator output will be acti-
vated (ON when NC actuators / OFF when NO actuators) when the temperature
in a room exceeds the set point.
Note #2: When the system is in cooling mode an independent dew-point alarm
function should be installed.
Danfoss off ers the below listed components (see example fi g. 17)
EDA-24V: Electronic dew-point alarm - 088H3001
EDA-S: Dew-point sensor - 088H3011
TWA-A: 24V-NO actuator – 088H3111
RA-C 20: Danfoss cooling valve* - 013G3096
•
This valve must be dimensioned according to the placement on the
primary side if the application structure in the example is chosen!
5.5 Wiring
5.6 Power Supply
•
When all actuators, pump and boiler controls and other inputs are in-
stalled, connect the Master Controller’s power supply plug to a 230V
power supply. (fi g. 18)
Note: If the power supply plug is removed from the power supply cable dur-
ing installation make sure that the connection is made according to existing
law/legislation.
L N L N
9
10
8
7
6
5
4
3
2
1
Actuator outputs
Relays
Input
Global Standby
Heating/Cooling
External
Antenna
Summary of Contents for 088U0200
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