Viessmann DLCSRBH06AAK Service Information

Single zone outdoor unit

Hide thumbs

page of 84

/ 84
Bookmarks

Quick Links

Download this manual

Service Instructions

For use by heating contractor

DLCSRBH

Models 06AAK, 09AAK, 12AAJ, 12AAK, 18AAK, 24AAK, 30AAK, and 36AAK

Single Zone Outdoor Unit

Heating Capacity: 3500 to 37000 BTU

1.0 to 10.8 kW

Cooling Capacity: 3500 to 38800 BTU

1.0 to 11.3 kW

VITOCAL 100-S

6225553 - 03 12/2024

viesmann

Product may not be exactly as shown

Need help?

Do you have a question about the DLCSRBH06AAK and is the answer not in the manual?

Questions and answers

Summary of Contents for Viessmann DLCSRBH06AAK

Page 1 viesmann Service Instructions For use by heating contractor DLCSRBH Models 06AAK, 09AAK, 12AAJ, 12AAK, 18AAK, 24AAK, 30AAK, and 36AAK Single Zone Outdoor Unit Heating Capacity: 3500 to 37000 BTU 1.0 to 10.8 kW Cooling Capacity: 3500 to 38800 BTU 1.0 to 11.3 kW VITOCAL 100-S Product may not be exactly as shown 6225553 - 03 12/2024...
Page 2 DLCSRB Service Manual Outdoor Unit Single Zone Ductless System - Sizes 06 to 36 TABLE of CONTENTS WARNING PAGE INTRODUCTION................1 MODEL / SERIAL NUMBER NOMENCLATURES ....2 WIRING ................... 3 ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury CONNECTION DIAGRAMS ............
Page 3 DLCSRB: Service Manual MODEL / SERIAL NUMBER NOMENCLATURES Table 1 —Unit Sizes DLCSRBH06AAK 208/230-1 ǂ DLC = OUTDOOR UNIT S = MODEL NUMBER 10001 All Models Sequential Serial Number Year of Manufacture Week of Manufacture Use of the AHRI Certi ed TM Mark indicates a manufacturer’s...
Page 4 DLCSRB: Service Manual WIRING CAUTION All wires must be sized per NEC (National Electrical Code) or CEC (Canadian Electrical Code) and local codes. Use Electrical Data table MCA (minimum circuit amps) and MOCP (maximum over current EQUIPMENT DAMAGE HAZARD protection) to correctly size the wires and the disconnect fuse or breakers Failure to follow this caution may result in equipment damage respectively.
Page 5 DLCSRB: Service Manual CONNECTION DIAGRAMS Fig. 1 — Connection Diagram 12K (115V) Fig. 2 — Connection Diagram 6K-12K (208/230-1-60V) Fig. 3 — Connection Diagram 24K-36K (208/230-1-60V) NOTES: 1. Do not use thermostat wire for any connection between indoor and outdoor units. 2.
Page 6 DLCSRB: Service Manual WIRING DIAGRAMS NOTE This symbol indicates that the element is optional. The actual shape shall prevail. Fig. 4 — Wiring Diagram Size 12K (115V) Table 2 — Wiring Diagram Size 12K (115V) CN2/7/8 Input 115V CN18 Output 0~12V CN414 Output...
Page 7 DLCSRB: Service Manual WIRING DIAGRAMS (CONT) NOTE This symbol indicates that the element is optional. The actual shape shall prevail. Fig. 5 — Wiring Diagram - Sizes 6-12K (208/230V) Table 4 — Wiring Diagram - Sizes 6-12K (208/230V) CN1A Input 230V CN31 Output...
Page 8 DLCSRB: Service Manual WIRING DIAGRAMS (CONT) NOTE This symbol indicates that the element is optional. The actual shape shall prevail. Fig. 6 — Wiring Diagram - Size 18K (208/230V) Table 6 — Wiring Diagram - Size 18K (208/230V) CN1A Input 230V CN4_2/4_3 Input...
Page 9 DLCSRB: Service Manual WIRING DIAGRAMS (CONT) Input NOTE This symbol indicates that NOTE the element is optional. This symbol indicates that The actual shape shall prevail. the element is optional. Fig. 7 — Wiring Diagram - Sizes 24-36K (208/230V) Table 8 — Wiring Diagram - Sizes 24-36K (208/230V) CODE PART NAME Terminal Block...
Page 10 DLCSRB: Service Manual REFRIGERATION CYCLE DIAGRAMS Max: ft (25m) Min: ft (3m) No adjustment: ft (7.5m) Charge (greater than 25 feet 0.161 oz/ft) Fig. 8 — Refrigerant Cycle Diagram - Size 12K (115V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 11 DLCSRB: Service Manual REFRIGERATION CYCLE DIAGRAMS (CONT) Max: ft (25m) Min: ft (3m) No adjustment: ft (7.5m) Charge (greater than 25 feet 0.161 oz/ft) Fig. 9 — Refrigerant Cycle Diagram - Size 6K (208/230V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 12 DLCSRB: Service Manual REFRIGERATION CYCLE DIAGRAMS (CONT) Max: ft (25m) Min: ft (3m) No adjustment: ft (7.5m) Charge (greater than 25 feet 0.161 oz/ft) 0.65 Fig. 10 — Refrigerant Cycle Diagram - Sizes 9K-12K (208/230V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 13 DLCSRB: Service Manual REFRIGERATION CYCLE DIAGRAMS (CONT) Max: ft (25m) Min: ft (3m) No adjustment: ft (7.5m) Charge (greater than 25 feet 0.161 oz/ft) 0.65 Fig. 11 — Refrigerant Cycle Diagram - Size 18K (208/230V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 14 DLCSRB: Service Manual REFRIGERATION CYCLE DIAGRAMS (CONT) Max: ft (50m) Min: ft (3m) No adjustment: ft (7.5m) Charge (greater than 25 feet 0.161 oz/ft) Fig. 12 — Refrigerant Cycle Diagram - Size 24K (208/230V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 15 DLCSRB: Service Manual REFRIGERATION CYCLE DIAGRAMS (CONT) Max: ft (50m) Min: ft (3m) No adjustment: ft (7.5m) Charge (greater than 25 feet 0.32 oz/ft) Fig. 13 — Refrigerant Cycle Diagram - Size 30K (208/230V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 16 DLCSRB: Service Manual REFRIGERATION CYCLE DIAGRAMS (CONT) Max: 213.3 Min: ft (3m) No adjustment: (7.5 Charge (greater than 25 feet 0.32 oz/ft) Fig. 14 — Refrigerant Cycle Diagram - Size 36K (208/230V) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 17 DLCSRB: Service Manual REFRIGERANT LINES General Refrigerant Line Sizing 1. The outdoor units are shipped with a full charge of R410A refrigerant. All charges, line sizing, and capacities are based on runs of 25ft. (7.6 m). For runs over 25 ft. (7.6 m), consult the long-line applications section for the proper charge adjustments. 2.
Page 18 DLCSRB: Service Manual SYSTEM EVACUATION AND CHARGING Deep Vacuum Method CAUTION The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gage capable of accurately measuring the vacuum depth. The deep vacuum method is the most effective way of UNIT DAMAGE HAZARD assuring a system is free of air and liquid water (see Fig.
Page 19 DLCSRB: Service Manual ELECTRONIC FUNCTIONS Operation Modes and Functions Abbreviation: FAN Mode •T1: Indoor room temperature 1. Outdoor fan and compressor stop •T2: Coil temperature of indoor heat exchanger middle 2. Temperature setting function is disabled and no setting temperature •T2B: Coil temperature of indoor heat exchanger outlet appears.
Page 20 DLCSRB: Service Manual Indoor Fan Running Rules: Compressor Temperature Protection • In the COOLING mode, the indoor fan runs continuously and the user can select any of the following speeds: HIGH, MEDIUM, LOW and AUTO. • When the setting temperature is reached, if the compressor stops operating, the indoor fan motor runs in the minimum or setting speed (see Fig.
Page 21 DLCSRB: Service Manual Indoor Fan Running Rules: When the compressor is on, the user can set the indoor fan to either AUTO FAN ACTION in the HEATING mode. HIGH/MED/LOW/AUTO/MUTE. When the indoor unit coil temperature is low, the anti-cold air function starts and the indoor fan T1-Td +3F (1.5C) motor runs at the low speed.
Page 22 DLCSRB: Service Manual DEFROST Mode Forced DEFROSTING Mode: The air conditioning unit enters the DEFROST mode according to the 1. Press and hold AUTO/COOL for 5s to enter the mode. The indoor fan value of temperature of T3 and the value range of temperature change of stops and the defrosting lamp illuminates.
Page 23 DLCSRB: Service Manual Evaporator Coil Temperature Protection DRYING mode The indoor fan speed is fixed at BREEZE and can not be changed. The louver angle is the same as in the COOLING mode. Low Indoor Room Temperature Protection In the DRYING mode, if the room temperature is lower than 50°F(10°C), the compressor stops and does not resume until the room temperature exceeds 53.6°F (12°C).
Page 24 DLCSRB: Service Manual INQUIRY MODE To enter the Inquiry Mode: Press and hold together the On/Off and Fan buttons for 8 seconds. The remote control remains in Inquiry Mode for 1 minute if no button is pressed. In the Inquiry Mode, the remote display cancels all icons except AUTO, COOL, DRY, HEAT and battery strength. The digital display defaults to “0”...
Page 25 DLCSRB: Service Manual TROUBLESHOOTING Safety NOTE: Electricity power is kept in capacitors even if the power supply is shut off. NOTE: Remember to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) Fig. 30 —Electrolytic Capacitors For other models, connect discharge resistance (approximately 100 40W) or a soldering iron (plug) between the +, - terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.
Page 26 DLCSRB: Service Manual INDOOR UNIT DIAGNOSTIC GUIDES Table 13 — Indoor Unit Diagnostic Guide OPERATION LAMP TIMER LAMP DISPLAY LED STATUS SOLUTION  EH 00/ 1 time Indoor unit EEPROM parameter error EH 0A  2 times EL 01 Indoor / outdoor units communication error Page 27 ...
Page 27 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Outdoor EEPROM Parameter Error or Compressor Driven Chip EEPROM Parameter Error (EC51) Description: The outdoor PCB main chip does not receive feedback from the EEPROM chip or the compressor driven chip. Recommended parts to repair: •...
Page 28 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Indoor and Outdoor Unit Communication Error (EL01) Description: The indoor unit cannot communicate with the outdoor unit Recommended parts to repair: • Indoor PCB • Outdoor PCB • Short-circuited component Troubleshooting Power off, then restart the unit after 2 minutes.
Page 29 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Remarks: • Use a multimeter to test the DC voltage between the 2 port (or S or L2 port) and 3 port (or N or S port) of the outdoor unit. • The multimeter’s red pin connects with the 2 port (or S or L2 port) while the black pin is for the 3 port (or N or S port). If the unit is running normally, the voltage moves alternately as positive values and negative values.
Page 30 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Zero Crossing Detection Error Diagnosis and Solution (EH02) Description: When the PCB does not receive a zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal. Recommended parts to repair: •...
Page 31 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) The indoor fan speed is operating outside of the normal range (EH03) Description: When the indoor fan speed remains too slow or too fast for an extended period of time, the LED displays a failure code and the unit turns off.
Page 32 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) The Outdoor Fan Speed is Operating Outside of Normal Range (EC07) Description: When the outdoor fan speed remains too slow or too fast for a certain time, the LED displays the failure code and the AC turns off. Recommended parts to repair: •...
Page 33 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Outdoor DC Fan Motor (DC motor that controls the chip on the PCB) 1. Release the UVW connector. Measure the resistance of U-V, U-W, V-W. If the resistance is not equal to each other, the fan motor is faulty and must be replaced.
Page 34 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Indoor Temperature Sensor Is an Open Circuit or a Short Circuit (T1, T2) (EH60) Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure code. Recommended parts to repair: •...
Page 35 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Outdoor Temperature Sensor Is an Open Circuit or Short Circuited (T3, T4, TP, T2B, TH) (EC53) Description: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure code. Recommended parts to repair: •...
Page 36 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Refrigerant Leakage Detection (EL0C) Description: Define the compressor’s evaporator coil temperature (T2) starts running as Tcool. ° ° In the initial 5 minutes after the compressor starts, if T2<Tcool-1.8 F (1 C) is not maintained for 4 seconds and the compressor runs at a frequency higher than 50Hz however it does not maintain for a minimum of three minutes and this issue occurs 3 times, the LED displays the failure code and the unit turns off.
Page 37 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Indoor PCB/Display Board Communication Error (EH06) Description: The indoor PCB does not receive feedback from the display board. Recommended parts to repair: • Communication wire • Indoor PCB • Display board Troubleshooting Power off. Wait 2 minutes then restart the unit.
Page 38 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Current Overload Protection (PC08) Description: An abnormal current rise is detected by checking the specified detection circuit. Recommended parts to repair: • Communication wires • Reactor • Outdoor fan • Outdoor PCB Troubleshooting Was the protection activated in standby mode? Restart the unit when the...
Page 39 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) IPM Malfunction or IGBT over-strong current protection (PC00) Description: If the IPM sends an abnormal voltage signal to the compressor drive chip, the LED displays the failure code and the unit turns off. Recommended parts to repair: •...
Page 40 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Index IPM Continuity Check WARNING Electricity remains in the capacitors even when the power supply is off. Ensure the capacitors are fully discharged before troubleshooting. 1. Turn off the outdoor unit and disconnect the power supply. 2.
Page 41 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Compressor Check Disconnect the compressor and check the resistance between U-V, V-W and U-W, and all 3 values should be equal. If not, the compressor is faulty and needs to be replaced. Fig. 35 — Compressor Checks NOTE: Figure 35 is for reference only.
Page 42 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Over voltage or low voltage protection (PC01) Description: Abnormal increases or decreases in voltage are detected by checking the specified voltage detection circuit. Recommended parts to repair: • Power supply wires • IPM module board •...
Page 43 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Top temperature protection for compressor or High temperature or High pressure protection of IPM module (PC02) Description: For some models with overload protection, if the sampling voltage is not 5V, the LED displays the failure. If the IPM module temperature is higher than a certain value, the LED displays the failure code.
Page 44 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Top temperature protection for compressor or High temperature or High pressure protection of IPM module (PC02) (cont.) High pressure protection Are the high pressure switch Connect the high pressure switch and main control board wired and main control board.
Page 45 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Inverter compressor Drive Error (PC04) Description: An abnormal inverter compressor drive is detected by a special detection circuit, including communication signal detection, voltage detection, compressor rotation and speed signal detection. Recommended parts to repair: •...
Page 46 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Low Pressure Protection (PC03) Description: The outdoor pressure switch shuts the unit down because the low pressure is lower than 0.13 MPa and the LED displays the failure code. Recommended parts to repair: •...
Page 47 DLCSRB: Service Manual DIAGNOSIS AND SOLUTION (CONT) Communication Error Between Outdoor Main Chip and Compressor Driven Chip (PC40) Description: The main chip cannot detect the compressor driven chip. Recommended parts to repair: • Outdoor PCB • Electric control box Troubleshooting Turn off the power.
Page 48 DLCSRB: Service Manual Check Procedures Temperature Sensor Check WARNING Be sure to turn off all power supplies or disconnect all wires to avoid shock. Operate after the compressor and coil have returned to a normal temperature in case of injury. 1.
Page 49 DLCSRB: Service Manual Compressor Check 1. Disconnect the compressor power cord from the outdoor PCB. 2. Measure the resistance valve of each winding using a multi-meter. 3. Check the resistance valve of each winding in Table 14. Table 14 — Resistance Value Resistance Value KSK103D33UEZ3(YJ) KTM240D43UKT...
Page 50 DLCSRB: Service Manual IPM Continuity Check WARNING ELECTRICAL SHOCK HAZARD Electricity remains in the capacitors even when the power is off. Ensure the capacitors are fully discharged before troubleshooting. 1. Turn off the outdoor unit and disconnect the power supply. 2.
Page 51 DLCSRB: Service Manual 4 - Way Valve Check 1. Power on, use a digital tester to measure the voltage; when the unit operates in the COOLING mode, the voltage is 0V. If the voltage value is not in range, the PCB is faulty and needs to be replaced. Fig.
Page 52 DLCSRB: Service Manual EXV Check WARNING ELECTRICAL SHOCK HAZARD Electricity remains in the capacitors even when the power is off. Ensure the capacitors are fully discharged before troubleshooting. 1. Disconnect the connector from the outdoor PCB. 2. Measure the resistance value of each winding using a multi-meter. 3.
Page 53 DLCSRB: Service Manual Main Parts Check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Fig. 42 —Tester Temperature sensors • Room temp. (T1) sensor, • Indoor coil temp. (T2) sensor, • Outdoor coil temp. (T3) sensor, •...
Page 54 DLCSRB: Service Manual Pressure on Service Port Table 16 — Cooling Chart (R410A) ODU(DB) °F(°C) (-17) (-15) (-9.44) (7.22) (23.89) (29.44) (35) (40.56) (46.11) (48.89) IDU(DB/WB) 70/59 (21.11/15) 10.1 10.6 75/63 (23.89/17.22) 10.7 11.2 80/67 (26.67/19.44) 11.2 11.9 90/73 (32.22/22.78) 10.5 10.3 10.0...
Page 55 DLCSRB: Service Manual Pressure on Service Port (Cont) Table 17 — Heating Chart (R410A) ODU(DB/WB) 57/53 47/43 37/33 27/23 17/13 0/-2 -17/-18 °F(°C) (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) (-8.33/-10.56) (-17/-19) (-27/-28) IDU(DB) 55(12.78) 30.3 28.5 25.3 22.8 20.8 18.5 16.5 65(18.33) 32.5 30.0 26.6...
Page 56 DLCSRB: Service Manual System Pressure Table 18 — System Pressure Table-R410A PRESSURE TEMPERATURE PRESSURE TEMPERATURE °C °F °C °F 14.5 -51.623 -60.921 2350 23.5 340.75 38.817 101.871 21.75 -43.327 -45.989 2400 39.68 103.424 -36.992 -34.586 2450 24.5 355.25 40.531 104.956 36.25 -31.795 -25.231...
Page 57 DLCSRB: Service Manual DISASSEMBLY INSTRUCTIONS Outdoor Unit Sizes 12 (115V) and 6-12K (208/230V) Panel Plate NOTE: This part is for reference only and the photos may differ from your actual unit. Procedure Illustration 1) Turn off the air conditioner and the power breaker.
Page 58 DLCSRB: Service Manual Procedure Illustration 4) Remove the water collecting cover screws (2) then remove the water collecting cover. Water Collecting Cover 5) Remove the front panel screws and then remove the front panel (7 screws (onoff models) or 9 screws) (inverter models. Front Panel Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 59 DLCSRB: Service Manual Procedure Illustration 6) Remove the right panel screws (5) then remove the right panel. Right Panel Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 60 DLCSRB: Service Manual Outdoor Unit Sizes 18K (208/230V) Panel Plate NOTE: This part is for reference only and the photos may differ from your actual unit. Procedure Illustration 1) Turn off the air conditioner and the power breaker. 2) Remove the handle screw (1) then remove the handle.
Page 61 DLCSRB: Service Manual Procedure Illustration 4) Remove the water collecting cover screws (2) then remove the water collecting cover. Water Collecting Cover 5) Remove the front panel screws then remove the front panel (7 screws (on/off models) or 9 screws (inverter models)). Front Panel Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 62 DLCSRB: Service Manual Procedure Illustration 6) Remove the right panel screws (6) then remove the right panel. Right Panel Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 63 DLCSRB: Service Manual Outdoor Unit Sizes 24-36K (208/230V) Panel Plate NOTE: This part is for reference only and the photos may differ from your actual unit. Procedure Illustration 1) Turn off the air conditioner and the Handle power breaker. 2) Remove the handle screws (2) then remove the handle.
Page 64 DLCSRB: Service Manual Procedure Illustration 4) Remove the front right panel screws (2) and then remove the front right panel. Front Right Panel 5) Remove the front panel screws (9) and then remove the front panel. Front Panel Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 65 DLCSRB: Service Manual Procedure Illustration 6) Remove the water collecting cover screws (2) then remove the water collecting cover. Water Collecting Cover 7) Remove the rear net screws (2) then remove the rear net. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 66 DLCSRB: Service Manual Procedure Illustration 8) Remove the right panel screws (8) then remove the right panel. Right Panel Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 67 DLCSRB: Service Manual ELECTRICAL PARTS PCB Board 12K (115V) Procedure Illustration 1) Disconnect the compressor connector and release the ground wire (1 screw). 2) Pull out the wires from the electrical supporting plate and turn over the electronic control assembly. 3) Remove the electronic installing box subassembly (4 hooks).
Page 68 DLCSRB: Service Manual Procedure Illustration 4) Remove the board (2 hooks). 5) Disconnect the connectors from the electronic control board. 6) Remove the electronic control board (4 hooks). Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 69 DLCSRB: Service Manual PCB Board 6K-12K (208/230V) Procedure Illustration 1) Disconnect the compressor connector and release the ground wire (1 screw). 2) Pull out the wires from the electrical supporting plate and turn over the electronic control assembly. 3) Remove the electronic installing box subassembly (4 hooks).
Page 70 DLCSRB: Service Manual Procedure Illustration 4) Remove the board (2 hooks). 5) Disconnect the connectors from the electronic control board. 6) Remove the electronic control board (4 hooks). Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 71 DLCSRB: Service Manual PCB Board 18K (208/230V) Procedure Illustration 1) Remove the screws and loosen the hooks, then open the electronic control box cover (5 screws and 2 hooks). 2) Disconnect the fan motor connector motor from the electronic control board.
Page 72 DLCSRB: Service Manual PCB Board 24K-36K (208/230V) Procedure Illustration 1) Loosen the hooks (4), then open the electronic control box cover. 2) Remove the screws (6) on the electronic control board then turn over the electronic control board. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 73 DLCSRB: Service Manual Procedure Illustration 3) Pull out the connectors 4) Remove the 4 screws then remove the electronic control board. Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 74 DLCSRB: Service Manual Fan Assembly Procedure Illustration 1) Remove the nut securing the fan with a spanner. 2) Remove the fan. D-cut Fan Motor NOTE: Remove the panel plate and the fan motor connection on the PCB before disassembling fan motor. Procedure Illustration 1) Remove the fan motor screws (4).
Page 75 DLCSRB: Service Manual Sound Blanket Procedure Illustration 1) Remove the sound blanket (side and top). Sound Blanket (top) Sound Blanket (side) Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 76 DLCSRB: Service Manual Four Way Valve (for heat pump models) WARNING Evacuate the system and confirm that there is no refrigerant left in the system before removing the four-way valve and the compressor. (For R32 & R290, evacuate the system with the vacuum pump;...
Page 77 DLCSRB: Service Manual Compressor WARNING Evacuate the system and confirm that there is no refrigerant left in the system before removing the four-way valve and the compressor. (For R32 & R290, you should evacuate the system with the vacuum pump; flush the system with nitrogen;...
Page 78 DLCSRB: Service Manual Procedure Illustration 3) Remove the hex nuts and washers securing the compressor, located on the bottom plate. Suction Pipe 4) Heat up the brazed parts and then remove the discharge pipe and the suction pipe. Discharge Pipe 5) Lift the compressor from the base pan assembly with pliers.
Page 79 DLCSRB: Service Manual SAFETY CAUTION WARNING WARNING Be sure to turn off all the power supplies or disconnect all Electricity remains in the capacitors even when the power wires to avoid electric shock. supply is off. While checking the indoor or outdoor PCB, equip yourself Ensure the capacitors are fully discharges before with anti-static gloves or a wrist strap to avoid damage to the troubleshooting.
Page 80 DLCSRB: Service Manual APPENDICIES Appendix 1 Table 19 — Temperature Sensor Resistance Value Table for T1, T2, T3, T4 (°C--K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm - 20 115.266 12.6431 2.35774 0.62973 - 19...
Page 81 DLCSRB: Service Manual Appendix 2 Table 20 — Temperature Sensor Resistance Value Table for T5 (° C- -K) °C °F K Ohm °C °F K Ohm °C °F K Ohm °C °F K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73...
Page 82 DLCSRB: Service Manual Appendix 3 Table 21 — Appendix 3 °C °F °C °F °C °F °C °F °C °F 69.8 123.8 179.6 235.4 24.8 71.6 125.6 181.4 237.2 26.6 73.4 127.4 183.2 28.4 75.2 129.2 240.8 30.2 186.8 242.6 25.5 77.9 132.8...
Page 83 DLCSRB: Service Manual © 2022 Carrier. All rights reserved. Edition Date: 11/22 Catalog No: DLCSRB-01SM A Carrier Company Replaces: NEW Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 84 6225553 Service Viessmann Manufacturing Company ULC Viessmann Manufacturing Company (U.S.) Inc. 45 Access Road 750 McMurray Road Warwick, Rhode Island · 02886 · USA Waterloo, Ontario · N2V 2G5 · Canada TechInfo Line 1-888-484-8643 TechInfo Line 1-888-484-8643 1-800-288-0667 · Fax (401) 732-0590 1-800-387-7373 ·...

This manual is also suitable for:

Vitocal 100-sDlcsrbh09aakDlcsrbh12aajDlcsrbh12aakDlcsrbh18aakDlcsrbh24aak ... Show all