Danfoss RC-T2, RC-T4 Installation guide

Installation Guide

GreenCon RC-T2/T4

Room thermostat

Installation Guide	GreenCon RC-T2/T4

1. Installation Steps

GB

User Guide can be downloaded from: heating.danfoss.com.

1.Installation must be done by an authorised electrician.

2.The room thermostat should be installed at approx. 1.5 m above floor and where the effects of sunlight, draught or other heat sources (eg. TV’s) are avoided, see fig. 1.

3.First of all, carefully remove the cover, see fig. 2.

4.Connect the wire before mounting the back plate to the wall box using the enclosed screws. Then mount the cover to the back plate, see fig 3.

2. Wiring

1.Dimensions, see fig. 4

2.Wiring diagram, see fig. 5 and fig. 6

3.Follow the illustrations to complete the wiring:

1)RC-T4, see fig. 5

2)RC-T2, see fig. 6

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Installation Guide	GreenCon RC-T2/T4

GB 3. Error codes

Display	Description
E1	Alarming for short circuit of
	sensor
EE	EEPROM chip error
Lo	Indicating temperature lower
	than 0°C
Hi	Indicating temperature
	higher than 50°C

4. Notes

1.Correct wiring is essential; using instrument to confirm L and N before wiring is recommended.

2.Don’t remove too much of the insulation cover from the wire to avoid short circuit caused by the naked wire touching the metal 86 size mounting wall box.

3.Don’t let the screw press or touch the wire when using screw to fix room thermostat in wall box. A short-circuit risk exists if the wire insulation cover is damaged by the screw, and if the naked wire connects with the screw.

4.If walls must be painted, mount the room thermostat after painting, to avoid dust or paint material penetrating the room thermostat and thus damaging the PCB.

5.The max load of relay is 3 A (resistive) or 1 A (induc-

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Installation Guide GreenCon RC-T2/T4

	tive). The relay will be damaged if the load exceeds
		GB
	the limit.

6.Don’t cover the thermostat, for instance by hanging towels directly in front of it.

7.The room thermostat should be connected to the corresponding actuator and valve in individual room temperature control.

5. Technical Specifications

Feature	Description
Approval	CE Marking, EN60730
Ambient temperature	0 - 45 ° C
IP Class	30
Max. load, inductive	<1 A
Max. load, resistive	<3 A
Power consumption	2 W
Power supply	85-250 Vac, 50/60 Hz
Room temp. set range	5 - 35 ° C
Shell material	ABS + PC

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Installation Guide	GreenCon RC-T2/T4

GB 6. Interface

Symbols	Description	Symbols	Description
	Temperature		Valve
	indication
	Temperature		Frost protec-
	setting		tion
	Heating		Eco mode
	Cooling		Keyboard lock
	Ventilation		Timer ON/OFF

		Fan control			5/2 4 event
					program
		Clock			Actual week-
					day
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Installation Guide	GreenCon RC-T2/T4

7. Operation

GB

1.Power On/Off and Eco mode.

•When powered off, press power button on top of GreenCon to turn on;

•When powered on, press power button for 2 seconds to turn off thermostat;

•When powered on, short press power button to enter ECO mode;

•In ECO mode, press” < ” or” > ” for temperature setting, short press power button to exit.

2.Mode selection

•Press “ M ” to change system working mode: Cooling “”, heating “ ” or ventilation “ ”

3.Setting temperature

•Press “ < ” to reduce temperature, press “ > ” to raise temperature. (0.5°C changed each press)

•During setting temperature, “ SET ” icon will be displayed, after setting finished, this icon disappears and LCD shows actual temperature.

4.Fan speed selection

• Press “	” to select	(close)	(Low),
(Med),	(Hi),	(Auto);

• In Auto mode, fan speed will change according to the difference between room temperature and setting temperature, Low-speed when this difference exceed 1°C, Med-speed when exceed 2°C, Hi-speed when exceed 3°C.

*In default setting, fan speed will be “Close” when

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Installation Guide GreenCon RC-T2/T4

	GB	room temperature reaches setting temperature. See
		parameter P11 in chapter 9 for more details.

5.Time setting and ON/OFF timer

•Time setting

Long press“ ” for 3 seconds till “hh” start flashing, press “ < ” or “ > ” to adjust hour;

Short press “” , “mm” flash, press “ < ” or “ > ” to adjust minute;

Short press “ ” , “week” flash, press “ < ” or “ > ” to adjust weekday;

•Timer On/Off setting

After finishing time setting, short press“ ” to

configure timer On/Off function, press other button or wait for 6 seconds to exit.

•Short press “ ” till “ON” start flashing; Press“ < ” or “ > ” to adjust timer “ON” hour;

Press “ ” to confirm;

Press“ < ” or “ > ” to adjust timer “ON” minute; Press “ ” to confirm;

•After setting timer “ON”, “OFF” start flashing; Press“ < ” or “ > ” to adjust timer “OFF” hour;

Press “ ” to confirm;

Press“ < ” or “ > ” to adjust timer “OFF” minute; Press “ ” to confirm;

• Cancel ON/OFF timer

During above steps, adjust hour and minute to “--:--“ to cancel timer function; Or configure P02 to “02” in parameter setting to disable timer function.

6. Keyboard lock

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Installation Guide	GreenCon RC-T2/T4

Press and hold “M”, within 6 seconds, short press “ > ” GB to lock keyboard, icon “ ” will be displayed on LCD, repeat this to unlock.

7.Reset

During power off, press and hold both “M” and“ < ”, “ > ” for 10 seconds, thermostat will be reset and restart.

8.Auto switch between heating and cooling

When auto switch between heating and cooling On, heating and cooling is automatically controlled by the parameters P16 , P17 and P19. The temperature is controlled by the set temperature and the dead zone is decided via the parameters P16 for Normal mode and P17 for ECO mode.

9.Floor/radiator for heating & fan coil for cooling

If P18 is Off

The fan is controlled by the Fan Speed Selection If P18 is On

The fan is disabled, when heating is on. When cooling,the fan is controlled by the Fan Speed Selection

8. Programming

1.5-2 day programming

To enable this function, please configure P01 to “02” in parameter setting.

When this function is enabled, system automatically changes setting temperature four times per day.

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