Remko RXT xxx DC User Manual

Edition GB – W09REMKO RXT...DCRXT 351DC, RXT 521DC, RXT 681DC, RXT 1051DC, RXT 1401DCInverter wall/ceiling-mounted unit with split designOperation

DEHUMIDIFICATION modeIt is recommended that the target temperature be set to 24°C in dehumidification mode. Due to the low temperature of the refrigera

FAN SpeedFAN SpeedFAN SpeedThe fan speed can be adjusted with this key. A selection can be made between low, medium, high and automatic fan speed.F

Manual air distributionFans are located on the air outlet side, which can de individually adjusted using the IR remote control, to regulate the ho

DecommissioningTemporary shutdown1. Allow the indoor unit to run for 2 to 3 hours in circulation mode or in cooling mode at the maximum temperature s

Cleaning the condensation pump (accessory)An optional integrated or separate condensation pump may be included with the indoor unit, which pumps out a

Installation instructions for qualified personnelImportant notes prior to installation Transport the unit in its original packaging as close as possib

Selection of the installation locationIndoor unitThe indoor unit is designed for horizontal wall installation above doors. However, it can also be use

Installation inside buildings Ensure that heat can dissipate adequately when placing the outdoor component in cellars, lofts, adjoining rooms or hall

Observe the manuals for the indoor unit and outdoor unit when installing the entire system. Transport the unit in its original packaging as close a

The units are factory filled with dry nitrogen to check for leaks. The pressurised nitrogen is released when the union nuts are loosened. ! CAUTIONC

Only use tools and components designed for refrigeration applications. NOTEFlanging tool 7 Flanging the refrigerant pipe 8 Correct flange

10 Slope of the condensate lineWall installation:The condensation hose is led out of the bottom or rear of the indoor unitCeiling installation:The c

All electrical installation work is to be performed by specialist companies. Disconnect the power supply when connecting the electrical terminals. !

Electrical connection diagramConnecting the RXT 351DCOutdoor componentMains cable230 V~, 50 Hz, L1 / N / PENeutral conductorExterior conductorEarth co

AUVWL N S GNDBLUEUVWRY34CN6CN7CN5CN4CN10N-BBCN3CN2CN1CN15CN14CN16CT1N-AY/GRED5Y/GY/GREDBLACKBLACK Electrical drawingsRXT 351 DC ITRXT 351 DC ATTr

1Air circulation sensorCabled remote control Socket A-ECN 20TransformerP1 CN 3 CN 15 CN 4CN 13CN 9CN 7CN 12CN 6CN 50CN 19CN 16CN 14Fan motor1 23CN 18C

POWER_RYHEAT4-WAYFAN_HFAN_LTRANS INT4NTRANS INCT1L1L2L3L1L2L3CN16T5T315342REDCN42CN48CN46CN47CN44CN45CN43CN20-CN22GNDA1A22T14T26T31L13L25L321222RXT 10

11Air circulation sensorCN 20TransformerP1 CN 3 CN 15 CN 4CN 13CN 9CN 7CN 12CN 6CN 50CN 19CN 16CN 14Fan motor1 23CN 18CN 11CN 7Centre vaporiser sensor

Adding refrigerantThe units contain a basic quantity of refrigerant. For refrigerant line lengths of more than 5 metres per circuit, an additional amo

Function test of the cooling and heating modes1. Remove the caps from the valves.2. Begin the commissioning process by briefly opening the shut-off v

ContentsRead these operating instructions carefully before commissioning / using the device!These instructions are an integral part of the system and

Function test and test runDuring operation of the system, operating parameters can be called up on the outdoor component's display. The followin

Troubleshooting and customer serviceThe units and components are manufactured using state-of-the-art production methods and tested several times to v

Fault indication by flashing codeSensor resistanceOpera-tionLEDTimer LEDDefrost fan LEDAlarmLEDOC displayCause Required actionFlashes rapidlyFlashes r

RXT 351 DC indoor unit fault analysisNoNoYesYesNoYesNoYesIs the resistance of the temperature sensor OK? (white cable)(Table 1 P92-94)?NoReplace tempe

Is the EEPROM fitted properly?Fit EEPROM properlyReplace outdoor component main boardNoYes5. Operation and Timer lights flash at 5 Hz: EEPROM error6.

Connection of sensor line OK?NoCorrect sensor lineReplace temperature sensorYes7. Operation light flashes at 5 Hz and Timer light is on: condenser

RXT 521-1401DC indoor unit fault analysis10. Operation light flashes at 5 Hz and Defrost light is on: Hot gas temperature too highIs the temperature of

2. Timer light flashes at 5 Hz: communication error between indoor unit and outdoor componentYesNoEstablish the power supply.Is there voltage in th

Fault codeDISPLAYFault description Required actionE0 EEPROM error See page 36 / point 1E2 Communication error between indoor unit and outdoor componen

3. Fault code E3: communication error on main board of the outdoor componentReplace main boardDoes LED1 flash on the outdoor component main board?Es

Safety notesDisposing of the units and their componentsOnly recyclable materials are used in the manufacture of the units and components.Help protect

6. Fault code P1: high pressure faultIs the connecting cable from the high pressure switch to the main board OK?CorrectconnectionNoYesHigh pressure sw

7. Fault code P2: low pressure faultIs the connecting cable from the lower pressure switch to the main board OK?CorrectconnectionNoYesLow pressure swi

8. Fault code P3: compressor overcurrent protection has trippedIs the input current greater than 20A?Check refrigerant pipesNoYesIs the outdoor temp

9. Fault code P4: hot gas temperature too highIs the hot gas temperature over 115°C?YesIs the connection between the sensor and circuit board OK?NoIs

11. Fault code P6: IPM power board safety shutdownIs the voltage range between P and N of the IPM module OK?Ensure the correct supply voltageYesIs the

Resistances of the temperature sensors (Table 1)Temp. Resistance kΩ(°C) RmaxR(t) NormalRmin-20 116.539 106.732 96.920-19 110.231 100.552 91.451-18 103

Temp. Resistance kΩ(°C) RmaxR(t) NormalRmin64 2.154 2.026 1.90365 2.077 1.953 1.83366 2.004 1.883 1.76667 1.934 1.816 1.70268 1.867 1.752 1.64169 1.80

Resistances of the hot gas sensors (Table 2)°C kΩ °C kΩ °C kΩ °C kΩ-20 542.7 22 62.73 64 11.79 106 3.113-19 511.9 23 59.98 65 11.38 107 3.025-18 483 2

Unit dimensions We reserve the right to modify the dimensions and constructional design as part of the ongoing technical development process.RXT 351-1

Exploded view of RXT 351DC IT to RXT 1401DC ITWhen ordering spare parts, please state the EDP no., unit number and unit type (see identification plate)

MMRXT 351 DCT 2T3T 5The units are shipped in sturdy transport packaging. Immediately check the units on delivery and make a note of any damage or miss

Exploded view of the RXT 351-1401 DC / ATSpare parts listWe reserve the right to modify the dimensions and constructional design as part of the ongoi

Technical dataSeries RXT 351DC RXT 521DC RXT 681DC RXT 1051DC RXT 1401DCOperating mode Inverter wall-mounted room air conditioner combination for cool

Performance charts for heatingRXT 351 DCRXT 1051 DCRXT 521 DC233, 0 2, 5 1, 52, 0 3, 5 4, 0 4, 5 1, 0 0 3 6 9 12 -15 -12 -9 -6 -3 0, 801, 001,

Notes

EC Declaration of Conformityin accordance with the Machinery Directive, Annex II 1ATranslation of the Declaration of ConformityWe do hereby declare th

55

We reserve the right to make technical changes, and provide no warranty as to the accuracy of this data!ConsultationThanks to intensive training, our

OperationInfrared remote controlThe infrared remote control sends the programmed settings over a distance of up to 6 m to the receiver of the indoor u

"SLEEP" key After pressing this key, the target temperature in cooling mode automatically increases by 1 °C within one hour. In heating m

The remote control's On/Off function is shown at the top right of the remote control by a "wind symbol".Remote control On/OffRESET Butt

▲/▼ KeysCooling modeAutomatic modeMODE KeyUse the MODE key to select between individual operating modes. 5 modes are available:Using the key, the