Danfoss GreenCon RC-T2 User manual

Installation Guide

GreenCon RC-T2/T4

Room thermostat

Installation Guide GreenCon RC-T2/T4

Danfoss Heating Solutions VIE2D32P

1. Installation Steps

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 oor and where the eects of sunlight,

draught or other heat sources (eg. TV’s) are avoided,

see g. 1.

3. First of all, carefully remove the cover, see g. 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 g 3.

2. Wiring

1. Dimensions, see g. 4

2. Wiring diagram, see g. 5 and g. 6

3. Follow the illustrations to complete the wiring:

1) RC-T4, see g. 5

2) RC-T2, see g. 6

Installation Guide GreenCon RC-T2/T4

VIE2D32P Danfoss Heating Solutions

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 con-

rm 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 x 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 con-

nects with the screw.

4. If walls must be painted, mount the room thermostat

after painting, to avoid dust or paint material pen-

etrating the room thermostat and thus damaging

the PCB.

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

Installation Guide GreenCon RC-T2/T4

Danfoss Heating Solutions VIE2D32P

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

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 Specications

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

Installation Guide GreenCon RC-T2/T4

VIE2D32P Danfoss Heating Solutions

6. Interface

Symbols Description Symbols Description

Temperature

indication

Valve

Temperature

setting

Frost protec-

tion

Heating Eco mode

Cooling Keyboard lock

Ventilation Timer ON/OFF

Fan control 5/2 4 event

program

Clock Actual week-

day

Installation Guide GreenCon RC-T2/T4

Danfoss Heating Solutions VIE2D32P

7. Operation

1. Power On/O and Eco mode.

• When powered o, press power button on top of

GreenCon to turn on;

• When powered on, press power button for 2 sec-

onds to turn o 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 dis-

played, after setting nished, 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 dierence between room temperature and set-

ting temperature, Low-speed when this dierence

exceed 1°C, Med-speed when exceed 2°C, Hi-speed

when exceed 3°C.

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

Installation Guide GreenCon RC-T2/T4

VIE2D32P Danfoss Heating Solutions

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 ashing,

press “ <” or “ >” to adjust hour;

Short press “ ” , “mm” ash, press “ <” or “ >” to

adjust minute;

Short press “ ” , “week” ash, press “ <” or “ >” to

adjust weekday;

• Timer On/O setting

After nishing time setting, short press“ ” to

congure timer On/O function, press other button

or wait for 6 seconds to exit.

• Short press “ ” till “ON” start ashing;

Press“ <” or “ >”to adjust timer“ON” hour;

Press “ ” to conrm;

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

Press “ ” to conrm;

• After setting timer “ON”, “ OFF” start ashing;

Press“ <” or “ >” to adjust timer “OFF” hour;

Press “ ” to conrm;

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

Press “ ” to conrm;

• Cancel ON/OFF timer

During above steps, adjust hour and minute to “--:--“

to cancel timer function; Or congure P02 to“02”in

parameter setting to disable timer function.

6. Keyboard lock

Installation Guide GreenCon RC-T2/T4

Danfoss Heating Solutions VIE2D32P

Press and hold“M”, within 6 seconds, short press“ >”

to lock keyboard, icon“ ” will be displayed on LCD,

repeat this to unlock.

7. Reset

During power o, 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 cool-

ing

If P18 is O

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 congure P01 to “02”

in parameter setting.

When this function is enabled, system automatically

changes setting temperature four times per day.

Installation Guide GreenCon RC-T2/T4

VIE2D32P Danfoss Heating Solutions

press “ ” to conrm;

Press “ <” or “ >” to adjust heating temperature dur

ing rst event, press“ ” to conrm;Press“ <” or “ >

” to adjust cooling temperature during rst event,

press “ ” to conrm;

Repeat above operation for next 3 events

4. Programming for weekend set up;

After nishing programming of work days,“Sat.Sun”

will appear on screen, repeat above steps to set start-

ing time and temperature on weekends.

From next event, GreenCon will automatically

change setting temperature according to this set up.

Both setting temperature and event time can be

modied.

Programming function allows users to dene tem-

perature setting for 4 time period during workdays

(Mon-Fri) and weekend (Sat-Sun)

2. Default set up

Starting time and temperature for each period

7:00 / 18 °C / 28°C

9:00 / 22 °C / 26°C

18:00 / 18 °C / 28°C

21:00 / 15 °C / 30°C

3. Programming of workday set up;

Long press“ ” for 5 seconds till“Mon.Tue.Wed.

Thu.Fri” icon displays;

Press “ <” or “ >” to adjust starting hour of rst event,

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