Actuators; Relays For Pump & Boiler Control; Input For Global Standby; Input For Heating & Cooling - Danfoss 088U0200 Anleitung

Instruction CF-MC Master Controller
5.1 24V Actuators
• Connect the two actuator wires to an output (fig. 8)
• Fix the cable
Round cable (fig. 9)
Squared/flat cable (fig. 0)
Note: If NC (normally closed) actuators are installed for ON/OFF regulation, no further actuator
output configuration is needed (see chapter 6.1) !
5.2 Relays for Pump & 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 connections to the pump in accordance with existing law.
(fig. )
• Fix the cable (fig. 2)
• 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 thus NOT be used as
direct power supply. Max. load is 230V and 8A / 2A (inductive) !
5.3 Input for Global Standby
• Connect the two wires from an external switch (ON/OFF) to the two terminals for
the Global Standby input. (fig. 3)
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. 4)
Note: The Global Standby ensures a set room temperature fixed 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 terminals for
the heating and cooling input. (fig. 5)
When this switch is closed (ON) the system will switch from heating to cooling
mode.
• Fix the cable. (fig. 6)
Note :
#1: When the system is in cooling mode the actuator output will be activated (ON when NC
actuators / OFF when NO actuators) when the temperature in a room exceeds the set point.
#2: When the system is in cooling mode an independent dew-point alarm function should be
installed.
Danfoss offers the below listed components (see example fig. 7)
EDA-24V: Electronic dew-point alarm - 088H300
EDA-S: Dew-point sensor - 088H30
TWA-A: 24V-NO actuator – 088H3
RA-C 20: Danfoss cooling valve* - 03G3096
• This valve must be dimensioned according to the placement on the primary side
in the application structure if the example is chosen!
VI.UH.K6.1C Produced by Danfoss Floor Heating Hydronics 03.2007
GB
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