Toshiba ESTIA RUA-CP1701H Service Manual
  1. Manuals
  2. Brands
  3. Toshiba Manuals
  4. Heat Pump
  5. Estia RUA-CP1701H
  6. Service manual

Toshiba ESTIA RUA-CP1701H Service Manual

Air to water heat pump
Hide thumbs Also See for ESTIA RUA-CP1701H:
Table of Contents

Advertisement

Quick Links

Download this manual
FILE No. EU-SVM-17001
rd
(3
Revision: July 2019)
AIR TO WATER HEAT PUMP
Service Manual
Monobloc Outdoor Unit
Model name:
RUA – CP1701H*
RUA – CP2101H*
* See next page for model naming convention

Advertisement

Table of Contents
loading

Related Manuals for Toshiba ESTIA RUA-CP1701H

Summary of Contents for Toshiba ESTIA RUA-CP1701H

  • Page 1 FILE No. EU-SVM-17001 Revision: July 2019) AIR TO WATER HEAT PUMP Service Manual Monobloc Outdoor Unit Model name: RUA – CP1701H* RUA – CP2101H* * See next page for model naming convention...
  • Page 2 Monobloc Outdoor Unit Service Manual Model naming convention: ❑ ❑ RUA - CP 170 Area Europe Factory option: Coil Protection No Coil Protection Blank Coil Protection Power Supply 3 phase 380/415V Factory option: Pump Variable speed pump Blank with Expansion vessel Fixed speed pump with Expansion vessel Pump less type without...

  • Page 3: Table Of Contents

    Monobloc Outdoor Unit Service Manual Contents SAFETY PRECAUTIONS ............................5 REFRIGERANT (R410A) ............................8 2.1. & ......................8 AFETY DURING INSTALLATION SERVICE 2.2................................. 8 OOLS 2.3......................9 EPAIR AND RECHARGE OF REFRIGERANT SPECIFICATION..............................11 CONSTRUCTION VIEWS ............................13 4.1.
  • Page 4 Monobloc Outdoor Unit Service Manual 8.2.7. Boiler control ............................41 8.2.8. Domestic Hot Water Priority ........................ 42 8.2.9. Anti-Legionella Control......................... 43 8.2.10. Night Mode ............................. 44 8.2.11. Water Freeze Protection ........................44 8.2.12. Home Anti-freeze protection ........................ 45 8.2.13. Auto / climatic curve operation ......................46 8.2.14.
  • Page 5 Monobloc Outdoor Unit Service Manual 12.1..........................131 PEN THE FRONT PANEL 12.2..........................131 PEN THE RIGHT PANEL 12.3........................132 ETACHMENT OF THE ROOFTOP 12.4........................ 132 ETACHMENT OF THE BACK PANEL 12.5............................133 EPLACEMENT 12.6......................134 IXED PEED EPLACEMENT...

  • Page 6: Safety Precautions

    Monobloc Outdoor Unit Service Manual 1. Safety precautions The unit and this service guide list very important safety precautions. Understand the following details (indications and symbols) before reading the body text, and follow the instructions. [About indication] Indication Meaning of indication Indicates that a wrong operation may cause a service engineer and the third persons around to ⚠...
  • Page 7 Monobloc Outdoor Unit Service Manual ⚠ WARNING <Insulation treatment> After connecting a cut lead with a crimp contact, discharge by facing the closed side upward. • Connect lead wires with crimping terminals and turn the closed end upwards to avoid exposure to water. <Watch out for fire>...
  • Page 8 Monobloc Outdoor Unit Service Manual ⚠ WARNING <Check after repair> After a repair is completed, check for any abnormality. • Failure to do so may cause a fire, an electric shock, or an injury. • Turn off the power breaker to perform check. After a repair is completed (and the front panel and cabinet are placed), make a test run to check for any abnormality such as smoke or abnormal sound.

  • Page 9: Refrigerant (R410A)

    Monobloc Outdoor Unit Service Manual Refrigerant (R410A) This Air to Water Heat Pump adopts a new refrigerant HFC (R410A) to prevent destruction of the ozone layer. The working pressure of R410A refrigerant is 1.6 times higher than that of the conventional refrigerant R22.The refrigerant oil is also changed for the new refrigeration.

  • Page 10: Repair And Recharge Of Refrigerant

    Monobloc Outdoor Unit Service Manual The following equipment is also required when completing service diagnostic investigations or during the commissioning of the system: Clamp meter Thermometer iii) Insulation resistance tester Oscilloscope 2.3. Repair and recharge of refrigerant It is compulsory to wear personal protective equipment (PPE). It is recommended to wear ear defenders, when working near the unit and the unit is in operation.
  • Page 11 Monobloc Outdoor Unit Service Manual Do not re-use disposable (non-returnable) cylinders or attempt to refill them. It is dangerous and illegal. When cylinders are empty, evacuate the remaining gas pressure, and move the cylinders to a place designated for their recovery.

  • Page 12: Specification

    Monobloc Outdoor Unit Service Manual Specification Physical data Parameter RUA-CP1701H RUA-CP2101H Dimensions [HxWxD] ~ mm 1580x1142x584 1580x1142x584 Weight (1) ~ kg [Pumpless / Variable speed / Fixed speed] 191.6 / 206.1 / 209.9 200.1 / 214.6 / 218.4 Sound power level (2) ~ dB(A) Sound pressure level @ 10m (3) ~ dB(A) Compressor type DC twin rotary...
  • Page 13 Monobloc Outdoor Unit Service Manual Full Load Performance* RUA-CP1701H RUA-CP2101H Nominal heating capacity (EWT 30°C / LWT 35°C & OAT 7°C) ~ 17.1 21.1 COP ~ W/W Eurovent class heating Nominal heating capacity (EWT 40°C / LWT 45°C & OAT 7°C) ~ 16.2 20.0 COP ~ W/W...

  • Page 14: Construction Views

    Monobloc Outdoor Unit Service Manual Construction views 4.1. Monobloc outdoor unit ① ② Water inlet ③ Water outlet ④ Safety valve outlet Electrical connections 4.2. Remote controller...

  • Page 15: Estia Hot Water Cylinder

    Monobloc Outdoor Unit Service Manual 4.3. ESTIA hot water cylinder...

  • Page 16: Wiring Diagram

    Monobloc Outdoor Unit Service Manual Wiring Diagram 5.1. Monobloc outdoor unit Schematic 5.1.1. A001 VARIABLE SPEED DRIVE LEAVING WATER TEMPERATURE SENSOR A002 MAIN CONTROL CARD ENTERING WATER TEMPERATURE SENSOR REMOTE CONTROLLER (WUI) SP1F HIGH PRESSURE SWITCH LOW PRESSURE SENSOR SP90F EVAPORATOR PUMP FLOW SWITCH COMPRESSOR TRANSFORMER...

  • Page 17: Customer Control Connections

    Monobloc Outdoor Unit Service Manual Customer Control Connections 5.1.2. TERMINAL CUSTOMERS CCN+ WUI+ CCN GROUND CCN- WUI- ON / OFF SWITCH (REMOTE) MODE HEAT / COOL (REMOTE) NORMAL / ECO (REMOTE) SAFETY INPUT SWITCH FLOW SWITCH CUSTOMIZE DISCRETE INPUT #5 CUSTOMIZE DISCRETE INPUT #6 CUSTOMIZE DISCRETE INPUT #7 CUSTOMIZE DISCRETE INPUT #8...

  • Page 18: Wiring Diagram (Sheet 6)

    Monobloc Outdoor Unit Service Manual 5.1.3. Wiring Diagram (Sheet 6)

  • Page 19: Wiring Diagram (Sheet 7)

    Monobloc Outdoor Unit Service Manual 5.1.4. Wiring Diagram (Sheet 7)

  • Page 20: Wiring Diagram (Sheet 8)

    Monobloc Outdoor Unit Service Manual 5.1.5. Wiring Diagram (Sheet 8)

  • Page 21: General Electrical Connection

    Monobloc Outdoor Unit Service Manual 5.2. General electrical connection 5.3. ESTIA hot water cylinder...

  • Page 22: Key Electric Component Rating

    Monobloc Outdoor Unit Service Manual 6. Key electric component rating 6.1. Monobloc outdoor unit Model Component Name Type Rating CP1701 CP2101 Refrigeration Winding resistance: 0.79 Ω (20°C) DA422A3F-27M DC twin rotary compressor Winding resistance: 0.56 Ω (20°C) DA550A3F-11M Accumulator Vol. = 5.8 l Receiver Vol.

  • Page 23: Monobloc Outdoor Unit Control

    Monobloc Outdoor Unit Service Manual 6.3. Monobloc outdoor unit control 6.3.1. MCC-1596 (compressor IPDU) 6.3.2. MCC-1597 (fan motor IPDU)

  • Page 24: Mcc-1599 (Interface Pcb)

    Monobloc Outdoor Unit Service Manual 6.3.3. MCC-1599 (interface PCB) 6.3.4. MCC-1600 (noise filter)

  • Page 25: Nhc (New Hydronic Pcb)

    Monobloc Outdoor Unit Service Manual 6.3.5. NHC (new hydronic PCB) Terminal Connection Terminal Connection Live BUS JBUS Neutral Input refrigerant sensor Earth Supply Remote Controller (WUI) Primary transformer PWM circulator Secondary transformer Inputs BUS CCN Inputs Inputs Inputs / Outputs Input water sensor Outputs Input water sensor...

  • Page 26: Refrigeration Cycle / Water System Diagrams

    Monobloc Outdoor Unit Service Manual 7. Refrigeration cycle / water system diagrams 7.1. Water system diagram Pumpless model Variable / fixed speed hydraulic model...

  • Page 27: Glycol Anti-Freeze

    Monobloc Outdoor Unit Service Manual Legend for Water system diagrams: HYDRONIC COMPONENTS SYSTEM COMPONENTS Mesh filter Pocket for temperature sensor On/off valve (water filling - optional) Air purge Pressure reducer (water filling - optional) Flexible connections Water drain valve On/off valve Water flow control valve (factory supplied only Paddle flow switch with hydronic module option but to be installed...

  • Page 28: Refrigeration Cycle System Diagram

    Monobloc Outdoor Unit Service Manual 7.2. Refrigeration cycle system diagram Pumpless models...
  • Page 29 Monobloc Outdoor Unit Service Manual Variable / fixed speed hydraulic models...
  • Page 30 Monobloc Outdoor Unit Service Manual Legend for Refrigerant system diagrams: Description Water pump – main water pump – primary loop (variable speed / fixed speed models) Water high pressure safety relief valve [300kPa] (variable speed / fixed speed models) Flow switch Water filter (variable speed / fixed speed models).

  • Page 31: Operational Description

    Monobloc Outdoor Unit Service Manual 8. Operational description This chapter describes the working circuit and control of Air to Water Heat Pump about the following operations. 8.1. Basic Operation Operation control 8.1.1. 1. Purpose Remote controller (WUI) The operation of the Monobloc outdoor unit are controlled according to user-defined Selection of operating / condition setting.

  • Page 32: Domestic Hot Water (Dhw) Operation

    Monobloc Outdoor Unit Service Manual 8.1.2. Domestic hot water (DHW) operation 1. Purpose DHW (sanitary) supply Select DHW on the DHW temperature range: 30°C~60°C remote controller 2. Details This section performs hot water supply Water pump ON/OFF control operation according to heating conditions 3 way valve control NHC PCB control specified for the steps on the left.

  • Page 33: Wired External Control

    Monobloc Outdoor Unit Service Manual 8.1.5. Wired external control Name Description On/Off Switch (remote) Used to start and stop the unit (if no user interface). Used to select (if no user interface): Mode Heat/Cool (remote) - Cooling Mode = contact opened - Heating Mode =contact closed Used to select (if no user interface): Normal/Eco (remote)

  • Page 34: Control Mode And Control Method

    Monobloc Outdoor Unit Service Manual 8.2. Control mode and control method 8.2.1. Monobloc outdoor unit operation range for heating and cooling The Monobloc outdoor unit operation range for heating and cooling is shown on the figures below. Operating range RUA-CP**** ~ cooling mode Operating range RUA-CP**** ~ heating mode Cooling Cycle Evaporator Water Temperature...

  • Page 35: Domestic Hot Water (Dhw) Operation

    Monobloc Outdoor Unit Service Manual 8.2.2. Domestic hot water (DHW) operation Mnemonic description: • DHW-S = domestic hot water temperature sensor • DHW-TT = domestic hot water temperature [P206] • DHW_stp = domestic hot water set point [P406] • dhw_dt = domestic hot water cylinder ΔT (start) [P721] Operation start condition When domestic hot water (DHW) is selected on the remote controller , and the following conditions are satisfied, the DHW operation starts:...
  • Page 36 Monobloc Outdoor Unit Service Manual Related parameters Par.No Description Range Default DHW ECO set-point – (dhwecstp): [°C] 20.0~60.0 DHW set-point – (dhw_stp): [°C] 30.0~60.0 DHW mode limit value – (dhw_lim): [%] 50~100 DHW type – (dhw_type) DHW 3-way valve run time – (dhw_vlvr): [s] 0~240 DHW maximum runtime –...

  • Page 37: Heating Operation

    Monobloc Outdoor Unit Service Manual 8.2.3. Heating Operation • The operation of the heating mode is determined by the water temperature measured by the LWT sensor • The heating operation will start when: [1] Control Temperature (CTRL_TMP)< Control Point (CTRL_PNT) – Water Heat Hysteresis [P410] •...

  • Page 38: Cooling Operation

    Monobloc Outdoor Unit Service Manual • The operation of the heating mode is determined by the temperature sensor located inside the remote controller • The heating operation will start when: [1] Room Air Temperature < Air Set point [P421] – Air Delta Set point [P428] •...
  • Page 39 Monobloc Outdoor Unit Service Manual • The operation of the cooling mode is determined by the water temperature measured by the LWT sensor • The cooling operation will start when: [1] Control Temperature (CTRL_TMP) ≥ Control Point (CTRL_PNT) + Water Cool Hysteresis [P411] •...

  • Page 40: Simultaneous Heating And Domestic Hot Water Operation

    Monobloc Outdoor Unit Service Manual 8.2.5. Simultaneous Heating and Domestic Hot Water Operation It is possible to operate the ESTIA Monobloc system with both space heating and domestic hot water modes selected on the remote controller / software parameters. The operating mode is selected as detailed below and depends on the outdoor air temperature (OAT).

  • Page 41: Simultaneous Cooling And Domestic Hot Water Operation

    Monobloc Outdoor Unit Service Manual 8.2.6. Simultaneous Cooling and Domestic Hot Water Operation: It is possible to operate the ESTIA Monobloc system with both space heating and domestic hot water modes selected on the remote controller / software parameters. The operating mode is selected as detailed below and depends on the outdoor air temperature (OAT).

  • Page 42: Boiler Control

    Monobloc Outdoor Unit Service Manual 8.2.7. Boiler control In the case of very low outdoor air temperature or unit failure, the control will allow a gas or oil boiler to be activated as supplemental heating or heating replacement of the heat pump when the operating conditions are not suitable for thermodynamic heating.

  • Page 43: Domestic Hot Water Priority

    Monobloc Outdoor Unit Service Manual 8.2.8. Domestic Hot Water Priority The DHW Priority function allows the end user to force the system into DHW mode irrespective of the space heating demand and the current DHW schedule. The function acts as a DHW override function to generate DHW outside of the DHW scheduled time periods.

  • Page 44: Anti-Legionella Control

    Monobloc Outdoor Unit Service Manual [4] The system will stop producing DHW and the system will change back to heating mode when: DHW_TT ≥ DHW_CTRLP [P406] - ∆T DHW Stop [P722] The DHW maximum runtime [ P707] has elapsed The DHW exception timer [P708] has elapsed [5] If there is DHW demand and the DHW Exception timer is OFF (timed out) then the system will continue to run in heating mode.

  • Page 45: Night Mode

    Monobloc Outdoor Unit Service Manual Anti-Legionella ON: To enable the schedule function the following parameters have to be set: • Anti-legionella water set-point [P405] • Anti-legionella start day of the week [P714] • Anti-legionella start time [P715] Anti-Legionella OFF: The anti-legionella control will switch OFF when: •...

  • Page 46: Home Anti-Freeze Protection

    Monobloc Outdoor Unit Service Manual Unit Electric Threshold Conditions Pump Request Heater Mode OAT < AntiFreezeDeltaSetpoint [P517] + 6.0 ^C Periodically OAT < AntiFreezeDeltaSetpoint [P517] + 6.0 ^C <AND> Periodically LWT or EWT < AntiFreezeDeltaSetpoint [P517] + 4.0 ^C OAT < AntiFreezeDeltaSetpoint [P517] + 6.0 ^C <AND>...

  • Page 47: Auto / Climatic Curve Operation

    Monobloc Outdoor Unit Service Manual Control overview: (1) With the system powered, but not running, the Monobloc unit starts in heating mode when the room temperature is less than the temperature set in [P427]. At this time: • The main water pump is ON •...
  • Page 48 Monobloc Outdoor Unit Service Manual • If OAT is invalid (not transmitted by the Inverter, out-of-range value, etc.), the Water Setpoint is equal to the Custom Minimum Water Temp. • If OAT is above the current Maximum OAT threshold, the Water Setpoint is equal to the Custom Maximum Water Temp.
  • Page 49 Monobloc Outdoor Unit Service Manual Related parameters for cooling climatic curve control (predefined and custom): Par.No Description Range Default Cool sleep offset – (cwunooff): (K) 0.0 ~ 10.0 Cool away offset – (cwecooff): (K) 0.0 ~ 10.0 Cool curve min. set-point offset – (ccurvoff): (K) -5.0 ~ 5.0 Cool clim curve select –...
  • Page 50 Monobloc Outdoor Unit Service Manual • Predefined climatic curve: If the heating climatic curve [ht_curv] is configured to a parameter from "1" to "12", the water set-point will be calculated according to the selected heating climatic curve. Twelve predefined heating climatic curves are available: Climatic Min.

  • Page 51: Summer Mode Control

    Monobloc Outdoor Unit Service Manual Related parameters for heating climatic curve control (predefined and custom): Par.No Description Range Default Heat sleep offset – (hwunooff): (K) -10.0 ~ 0.0 Heat away offset – (hwecooff): (K) -10.0 ~ 0.0 -5.0 Heat curve max. set-point offset – (hcurvoff): (K) -5.0 ~ 5.0 Heat clim curve select –...

  • Page 52: Water Pump Logic

    Monobloc Outdoor Unit Service Manual Related parameters for floor drying mode operation: Par.No Description Range Default System mode request – (MOD_REQ) 0 ~ 9* Heat home set point – (hwoccstp): (°C) 20.0 ~ 60.0 Floor drying starting set point – (dry_stp): (°C) 20.0 ~ 40.0 Floor drying warm-up days –...
  • Page 53 Monobloc Outdoor Unit Service Manual Operating Mode Conditions Action Heat demand exists Pump is running DHW Mode Heat satisfied and Pump Logic = 1 “Always ON” Pump is running Heat satisfied and Pump Logic = 2 “Water Sampling” Pump is running periodically Cool demand exists Pump is running Cooling Mode...
  • Page 54 Monobloc Outdoor Unit Service Manual • Fixed Speed Pump Option (pmp_type = 1) The fixed speed pump option is fitted in the factory. ON / OFF control of the pump is available from the NHC board via an internal contactor as shown below: The speed of the pump can be adjusted using a manual speed selector switch located on the pump electrical box.
  • Page 55 Monobloc Outdoor Unit Service Manual • Variable Speed Pump Option (pmp_type = 2) The variable speed pump option is fitted in the factory. Speed control of the pump is available from the NHC board via an internal contactor as shown below: The variable speed hydronic module can be set to control using either of the following pump control methods: •...
  • Page 56 Monobloc Outdoor Unit Service Manual To set the required pump speed parameter [P568] – maximum pump speed (vsp_max)must be set: Par.No Description Range Default Maximum pump speed – (vsp_log): (%) 50 ~ 100 For more details on setting the water pump speed please refer to the ESTIA Monobloc installation manual. •...
  • Page 57 Monobloc Outdoor Unit Service Manual • Main pump control logic in standby mode Cooling / Heating Mode Boiler Main Pump Logic Local Remote Satisfied [P565] Mode Demand Demand    Always On [P565]=1 N.A. Water Sampling Off (On for ...

  • Page 58: Flow Switch Control

    Monobloc Outdoor Unit Service Manual Related parameters associated with pump control: Par.No Description Range Default Fluid type – (flui_typ) 1 ~ 2 External main pump control – (pmp_ext) 0 ~ 1 Flow checked if pump off – (flw_chko) 0 ~ 1 Anti-sticking function –...

  • Page 59: Capacity Override [P064]

    Monobloc Outdoor Unit Service Manual 8.3.2. CAPACITY OVERRIDE [P064] Override Conditions Action No override N.A. No action Wait for 90 seconds before starting the Power Up Delay Unit is powered on compressor Minimum on time Compressor is running for less than 3 Do not allow compressor stopping, run (compressor short cycle minutes.
  • Page 60 Monobloc Outdoor Unit Service Manual Override Conditions Action Cool Mode and TO2 [P039] is below Do not allow the start. Stop unit if Minimum OAT in Cooling “oat_minc” parameter ([P516], default already running. is 0°C) for 15 min. EWT is strictly below 6°C + offset. Minimum EWT in Cooling With offset increased of 2K each time Do not allow the start...

  • Page 61: Water Pump Override [P081]

    Monobloc Outdoor Unit Service Manual 8.3.3. Water Pump override [P081] The following table includes water pump overrides which are used to ensure the proper functioning of the unit. Override Conditions Action Pump Disabled No pump is configured Do nothing Compressor still Compressor is requested to stop Keep running the pump running...

  • Page 62: Backup Override [P091]

    Monobloc Outdoor Unit Service Manual Alarm #50 or #51 is active and will be automatically reset (number of allowed occurrences not reached) <OR> Variable Speed Pump configured (Par.804=2) and Freeze Protection Compressor starting sequence on Run the pump at 100% going (capacity override #5 to #8) and SST below 0°C <OR>...

  • Page 63: Dhw Override [P202]

    Monobloc Outdoor Unit Service Manual OAT is above [P604] or unit is not Backup not allowed Do not allow electric backup in Heat Mode Not an Heat Mode or Heat Mode is No Heating Demand Do not allow backup satisfied Do not allow electric or boiler Unit is failed Unit is failed...

  • Page 64: Inverter Control Logic

    Monobloc Outdoor Unit Service Manual 8.4. Inverter Control logic 8.4.1. Compressor short cycling protection For reliability purposes when the compressor goes from On to Off, it must remain off for at least of 2 minutes 30 seconds (minimum off time). And to avoid short and frequent on / off cycles, the control algorithm will wait 3 minutes (maximum on time) before stop the unit.

  • Page 65: Coil Heating Control

    Monobloc Outdoor Unit Service Manual 8.4.4. Coil Heating Control • This control has the function of heating the compressor by applying a current to the compressor when not operating instead using a case heater. This control is for the purpose of preventing stagnation of the refrigerant inside the compressor.

  • Page 66: Superheat Control

    Monobloc Outdoor Unit Service Manual 8.4.5. Superheat Control The superheat is measured with SH=TS - T(Ps) (TS: suction temperature with temperature sensor and T(Ps): suction saturation temperature calculated from pressure sensor) and it is controlled by PMV opening. 8.4.5.1. Superheat of 17kW unit = SH0 + α) Superheat target on 17kW (SH target...

  • Page 67: Defrost Logic

    Monobloc Outdoor Unit Service Manual 8.4.6. Defrost logic • In heating operation, defrost operation is performed when TE sensor temperature satisfies any condition in A zone to D zone. • The defrost operation is immediately finished if TE sensor temperature has become 12°C or more, or it also is finished when condition of 7°C <...

  • Page 68: Outdoor Fan Control

    Monobloc Outdoor Unit Service Manual 8.4.6.3. Forced defrost logic In cases where ice regularly remains after a defrost, parameter 615 “Forced Defrost” can be activated: • If unsuccessful defrost  Te threshold = 18 °C after defrost  counter = 1 •...
  • Page 69 Monobloc Outdoor Unit Service Manual 21kW Cooling fan control Compressor Speed Range 45 Hz or lower 45 Hz to 60 Hz 60Hz or higher Temperature Range Min. Fan Max. Fan Min. Fan Max. Fan Min. Fan Max. Fan Speed Speed Speed Speed Speed...
  • Page 70 Monobloc Outdoor Unit Service Manual...

  • Page 71: Method Of Defect Analysis

    Monobloc Outdoor Unit Service Manual Method of defect analysis 9.1. Matters to be confirmed first 9.1.1. Initial check items Check item Action • Check whether power is supplied. Nothing is displayed on the RC. • Is the circuit breaker switch turned on? •...

  • Page 72: Outline Of The Determination Diagram

    Monobloc Outdoor Unit Service Manual “ON” on the remote controller will not operate the compressor. When the outdoor temperature (TO sensor detection (It will not operate even after the reboot delay timer elapsed) temperature) is -25 °C or lower, the heat pump will not operate in order to protect the compressor, and the heater will operate instead.

  • Page 73: How To Cancel A Check Code

    Monobloc Outdoor Unit Service Manual To reset alarms In the alarm menu, press and hold the Mode key and the Schedule key simultaneously for 2 seconds. The reset alarm menu will be displayed. Press the Down key or the Up key to set the alarms reset to “YES”.
  • Page 74 Monobloc Outdoor Unit Service Manual If there is a problem of readiness af alarm by remote controller or service tools, it is possible in the second time to check error from the LED D800 to D804 on MCC-1599 board. By lighting LED D800 to D804, past or current alarm can be identified (refer to tables below) How to read the LED diagnostic: a) When all Dip switch of SW 803 are OFF, the current status of error which is displayed (current alarm)
  • Page 75 Monobloc Outdoor Unit Service Manual...

  • Page 76: How To Diagnose By Error Code

    Monobloc Outdoor Unit Service Manual 9.3.5. How to diagnose by error code Check Code Determination and action Automatic Operational Cause Unit Status Reset Automatic reset when the sensor returns within the correct range. EWT sensor failure Continue Check EWT sensor (EWT) Check NHC board Automatic reset when the sensor returns within the correct range.
  • Page 77 Monobloc Outdoor Unit Service Manual Check Code Determination and action Automatic Operational Cause Unit Status Reset Alarm reset by resetting the power supply to the Monobloc unit. Error detected when discharge pressure exceeds HP switch limit pressure. 1. Check of outdoor fan operation. Inverter high pressure Compressor 2.
  • Page 78 Monobloc Outdoor Unit Service Manual Check Code Determination and action Automatic Operational Cause Unit Status Reset Alarm reset by resetting the power supply to the Monobloc unit. Error becomes definite after retrying operation for 8 times. 1. Check clogging of outdoor PMV. 2.
  • Page 79 Monobloc Outdoor Unit Service Manual 4) The alarm count when the compressor stopped with 2) is cleared after the operation continued for 10 minutes. If the alarm count becomes [10] without clearing, the alarm is determined and reactivation is not performed. 5) For the alarm display [72] contents, confirm check code list.

  • Page 80: Diagnosis Flow Chart For Each Error Code

    Monobloc Outdoor Unit Service Manual 9.4. Diagnosis flow chart for each error code 9.4.1. Monobloc outdoor unit failure detection 9.4.1.1. Alarms 1 to 7 - Temp. Sensors on NHC board Control Parameter Electrical connection Alarm 1 EWT sensor failure J9 on NHC Alarm 2 LWT sensor failure J8 on NHC...
  • Page 81 Monobloc Outdoor Unit Service Manual 9.4.1.3. Alarms 10 to 14 – Temperature sensors on inverter board Electrical connection Alarm 10 Discharge Temperature (TD) sensor failure CN603 on MCC-1599 Alarm 11 Lower Air Temperature (TE) sensor failure CN601 on MCC-1599 Alarm 12 Upper Air Exchanger Temperature (TL) sensor failure CN604 on MCC-1599 Alarm 13...
  • Page 82 Monobloc Outdoor Unit Service Manual 9.4.1.6. Alarm 17 – Inverter suction pressure sensor failure Electrical connection Alarm 17 Inverter suction pressure (PS) sensor failure CN606 on MCC-1599 Is connector of PS sensor Correctly connection of connector correctly connected? Are the output current characteristics sensor error of Sensor error PS sensor normal?
  • Page 83 Monobloc Outdoor Unit Service Manual 9.4.1.7. Alarm 20 – Loss of communication with Remote Controller (WUI) Control Parameter Electrical connection Terminal 24 & 25 on User interface type [P521] power terminal block TB X2 Alarm 20 Loss of communication with Remote Controller (WUI) (table UI_CONF) Terminal 1 &...
  • Page 84 Monobloc Outdoor Unit Service Manual 9.4.1.8. Alarm 21 – Loss of communication with inverter Electrical connection NHC board: J26.5 Alarm 21 Loss of communication with inverter On terminal block of inverter box (marker 3) Is the connection NHC board Correct wiring and inverter box correct? NHC or inverter box replacement 9.4.1.9.
  • Page 85 Monobloc Outdoor Unit Service Manual 9.4.1.11. Alarm 32 – Flow switch failure Control Parameter Electrical connection Flow switch status [P105] Between 8 & 13 on terminal block Alarm 32 Flow switch failure (table PMP_STAT) TB X2 Alarm reset by power switch Connect flow switch connector to board Flow switch is connected to board? If ‘flow checked if pump off’...
  • Page 86 Monobloc Outdoor Unit Service Manual 9.4.1.12. Alarm 33 – Inverter high pressure release failure Electrical connection Alarm 33 Inverter high pressure release failure CN690 on MCC-1599 Doesn’t high pressure switch Is circuit wiring normal? Wiring check, correct operate? Check inverter box – if defective, Are parts of high pressure switch Check parts –...
  • Page 87 Monobloc Outdoor Unit Service Manual Heating operation Repair defective position Does water pump normally Is circuit wiring normal? operate? Replace pump Check the clogging of water filter, if clogged, replace Is the water flow rate too low? Check the presence of water leakage on circuit Is there any element which Is TR sensor correctly blocks water heat exchanger?
  • Page 88 Monobloc Outdoor Unit Service Manual 9.4.1.14. Alarm 51 – Exchanger freeze protection on refrigerant temp (in cooling) SST too low. Exchanger freeze protection on refrigerant temp Alarm 51 Wait that alarm is continuous (i.e. alarm stays active during at least (in cooling) 10min) Do TR / TD / TS / BP sensors...
  • Page 89 Monobloc Outdoor Unit Service Manual 9.4.1.16. Alarm 61 – Fan error Alarm 61 Fan error Are fan connectors connected Check wiring (refer to wiring diagram) correctly? Is pipe crushed on refrigerant Replace fan motor circuit? Check operation of inverter box Defective fan motor - replace 9.4.1.17.
  • Page 90 Monobloc Outdoor Unit Service Manual 9.4.1.19. Alarm 64 – Compressor breakdown Alarm 64 Compressor breakdown Is power supply voltage normal? Correct power supply line AC 342V to 547V Is wire connection normal? Compressor lead (board side Check wire connections and correct it and compressor side), Reactor lead, power supply lead Correct and clear the cause...
  • Page 91 Monobloc Outdoor Unit Service Manual 9.4.1.21. Alarm 70 – Compressor thermal switch release failure Alarm 70 Compressor thermal switch release failure Are CN609 connection and case Correct connector. Case thermostat error  Replace thermostat normal? Is cooling / heating operation Check inverter box available when short-circuiting Defect ...
  • Page 92 Monobloc Outdoor Unit Service Manual A – Cooling mode Repair the defective part Are parts of fan motor normal? 1. Connection of connector Does fan normally operate? 2. Capacitor 3. Motor 4. Fan Check inverter box Defective  Replace Correct 2-way valve circuit Is the 2-way valve circuit normal? Check miss-wiring wrong installation and connection of connector...
  • Page 93 Monobloc Outdoor Unit Service Manual 9.4.1.23. Alarm 72 – Inverter high pressure protective operation Alarm 72 Inverter high pressure protective operation Reset the power supply and then perform test run matching the season Heating season Cooling season Heating operation Cooling operation Does there no element Is there no problem on which interfere heating...
  • Page 94 Monobloc Outdoor Unit Service Manual 9.4.1.25. Alarm 74 – Discharge temperature too high Alarm 74 Discharge temperature too high Is there no gas leak? Repair defective part. Is refrigerant charge amount adequate? Recharge refrigerant Repair defective part Is PMV normal? Is it not abnormal overload? Correct and clear the cause Correct connector...
  • Page 95 Monobloc Outdoor Unit Service Manual 9.4.1.28. Alarm 78 – Other Inverter error Alarm 78 Other Inverter error Check Parameter 344 inv_err = “Normal”: no error 132 = “H04”: Compressor Case Temperature too high (thermal Switch = Inverter over current protective circuit open) = Position detect circuit error or short circuit of compressor 134 = “H06”: Suction Pressure too low...

  • Page 96: Temperature Sensor, Temperature - Resistance Characteristic Tables

    Monobloc Outdoor Unit Service Manual 9.4.2. Temperature sensor, temperature – resistance characteristic tables TD & TL sensor characteristics TE, TS, & TO sensor characteristics EWT, LWT sensor characteristics Temperature (°C)

  • Page 97: Parameter Details

    Monobloc Outdoor Unit Service Manual Parameter details 10.1. Parameter tables This section includes all menus that can be accessed via the Network Service Tool. Please note that these parameters may also be defined using WUI; however, in such a case only a parameter number is displayed.

  • Page 98: Service Tables

    Monobloc Outdoor Unit Service Manual Service tables 10.1.1. 10.1.1.1. Factory Table Access type: Read/Write TABLE NAME: FACTORY, PIC Table Type: 13H, instance 1 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION unittype 0 to 3 Unit Type unitsize 0 to 40 Unit Size fan_type 0 to 1 Fan Type...

  • Page 99: Configuration Tables

    Monobloc Outdoor Unit Service Manual 10.1.1.2. Compressor Factory Table Access type: Read/Write TABLE NAME: CMP_FACT, PIC Table Type: 13H , instance 2 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION heat_kp 0.001 to 10.000 0.900 Heat Ctrl Proport. Gain heat_ti 10 to 120 Heat Ctrl Integral Time heat_ts 10 to 120...
  • Page 100 Monobloc Outdoor Unit Service Manual 1. Safety switch type (NC type) 2 = Unit in Alarm (unit is stopped) 1 = Full safety switch: Unit is STOPPED when the switch 3 = Unit is in Standby (satisfied) is open 4 = Unit is running (Cool, Heat, DHW or Defrost) 2 = Underfloor Heating safety switch: Heating mode is 5 = Unit is running in Cool mode NOT allowed when the switch is open...
  • Page 101 Monobloc Outdoor Unit Service Manual 10.1.2.2. User Configuration Table Access type: Read/Write TABLE NAME: UI_CONF, PIC Table Type: 10H, instance 2 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION ui_type 0 to 3 User Interface Type ui_accss 0 to 3 Parameter Access from UI ui_tmt 0 to 240 Interface Comm.
  • Page 102 Monobloc Outdoor Unit Service Manual 10.1.2.3. Compressor Configuration Table Access type: Read/Write TABLE NAME: CMP_CONF, PIC Table Type: 10H, instance 3 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION powr_lim 50 to 100 Power Limitation value nght_lim 50 to 100 Night Limitation value dhw_lim 50 to 100 DHW Limitation value...
  • Page 103 Monobloc Outdoor Unit Service Manual 10.1.2.5. Climatic Curves Table Access type: Read/Write TABLE NAME: CLIMCURV, PIC Table Type: 10H, instance 5 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION ht_curv -1 to 12 Heat Clim Curve Select ht_min_a -30.0 to 10.0 -7.0 °C Heat Minimum OAT ht_max_a...
  • Page 104 Monobloc Outdoor Unit Service Manual 10.1.2.7. Backup Configuration Table Access type: Read/Write TABLE NAME: BCK_CONF, PIC Table Type: 10H, instance 7 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION bck_type 0 to 10 Backup Type bck_warm 5 to 120 Booster Warm Up Time bck_delt 1.0 to 20.0 Booster Delta Temp...
  • Page 105 Monobloc Outdoor Unit Service Manual 10.1.2.8. Domestic Hot Water Configuration Table Access type: Read/Write TABLE NAME: DHW_CONF, PIC Table Type: 10H, instance 8 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION dhw_type 0 to 3 Domestic Hot Water Type dhw_vlvr 0 to 240 DHW 3-way Valve run time shc_min 0 to 720...
  • Page 106 Monobloc Outdoor Unit Service Manual 10.1.2.9. Header / Follower Configuration Table Access type: Read/Write TABLE NAME: MSL_CONF, PIC Table Type: 10H, instance 9 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION ms_sel 0 to 2 Header / Follower Selection slv1_add 0 to 239 Follower #1 Address slv2_add 0 to 239...
  • Page 107 Monobloc Outdoor Unit Service Manual 10.1.2.10. JBus configuration table Access type: Read/Write TABLE NAME: JBUSCONF, PIC Table Type: 10H, instance 10 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION jbus_ena 0 to 2 JBus Control Enable jbus_add 1 to 255 JBus Follower Address jbus_bdr 0 to 2 JBus Baud Rate...

  • Page 108: Display Tables

    Monobloc Outdoor Unit Service Manual 10.1.3. Display tables 10.1.3.1. General Unit Table Access type: Read-only (force is possible) TABLE NAME: GENUNIT, PIC Table Type: 11H, instance 1 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION -40.0 to 115.6 °C Outdoor Air Temperature -40.0 to 115.6 °C Indoor Air Temperature...
  • Page 109 Monobloc Outdoor Unit Service Manual 10.1.3.2. Status Table Access type: Read-only (force is possible) TABLE NAME: STATUS, PIC Table Type: 11H, instance 2 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION CHIL_OCC 0 to 2 Occupancy Mode sum_mode No / Yes Summer Mode nightmod No / Yes Night Mode...
  • Page 110 Monobloc Outdoor Unit Service Manual 10.1.3.3. Capacity Table Access type: Read-only (force is possible) TABLE NAME: LOADFACT, PIC Table Type: 11H, instance 3 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION cmp_req 0 to 5/21/22 Compressor Mode Request cmp_inv 0 to 2/7/21/22 Compr.
  • Page 111 Monobloc Outdoor Unit Service Manual 10.1.3.4. Pump Status Table Access type: Read-only (force is possible) TABLE NAME: PMP_STAT, PIC Table Type: 11H, instance 4 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION pmp_ovr -1 to 16 Pump Override FLOW_SW Open / Close Flow Switch Status flow_err Normal / Alarm...
  • Page 112 Monobloc Outdoor Unit Service Manual 10.1.3.6. Inputs Table Access type: Read-only (force is possible) TABLE NAME: INPUTS, PIC Table Type: 11H, instance 6 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION ONOFF_SW Open / Close On/Off Switch Status HC_SW Open / Close Heat/Cool Switch Status ECO_SW Open / Close...
  • Page 113 Monobloc Outdoor Unit Service Manual 10.1.3.7. DHW Status Table Access type: Read-only (force is possible) TABLE NAME: DHW_STAT, PIC Table Type: 11H, instance 7 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION DHW_MODE 0 to 2 DHW Mode dhw_ovr -1 to 100 DHW Override dhw_dem No / Yes...
  • Page 114 Monobloc Outdoor Unit Service Manual 10.1.3.8. Header / Follower Status Table Access type: Read-only (force is possible) TABLE NAME: MSL_STAT, PIC Table Type: 11H, instance 8 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION CHWSTEMP -40.0 to 115.6 °C Chiller Water Syst Temp CTRL_PNT 5.0 to 60.0 °C...

  • Page 115: Maintenance Tables

    Monobloc Outdoor Unit Service Manual Maintenance tables 10.1.4. 10.1.4.1. Inverter Table Access type: Read-only TABLE NAME: INVERTER, PIC Table Type: 12H, instance 1 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION model 0xXXXX Inverter Model prg_ver 0xXX Inverter Prog Version prg_rev 0xXX Inverter Prog Revision eep_cod 0xXXXXXX...
  • Page 116 Monobloc Outdoor Unit Service Manual 10.1.4.2. Quick Test Table Access type: Read-only (force is possible) TABLE NAME: QCK_TEST, PIC Table Type: 12H, instance 2 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION QCK_ENA No / Yes Quick Test enable _HP_TEST 0 to 8 HP Switch Test _RAT_MOD 0 to 4...
  • Page 117 Monobloc Outdoor Unit Service Manual 10.1.4.3. Alarm Table Access type: Read-only (force is possible) TABLE NAME: ALARM, PIC Table Type: 12H, instance 3 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION ALMRESET No / Yes Alarm Reset Normal / Alarm Normal Alarm Status ALERT No / Yes Alert Status...
  • Page 118 Monobloc Outdoor Unit Service Manual 10.1.4.4. Maintenance Runtime Table Access type: Read-only (EEPROM backup) TABLE NAME: RUNTIME1, PIC Table Type: 12H, instance 4 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION comp1_st xxxxx Compressor Starts Nb comp1_hr xxxx.x Compressor Run Hours pmp_st xxxxx Water Pump Starts Nb pmp_hr...
  • Page 119 Monobloc Outdoor Unit Service Manual 10.1.4.6. Data Collection Tool Table (read-only) Access type: Read-only TABLE NAME: PCDCT, PIC Table Type: 12H, instance 6 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION -40.0 to 115.6 °C Outdoor Air Temperature -40.0 to 115.6 °C Indoor Air Temperature -40.0 to 115.6 °C...
  • Page 120 Monobloc Outdoor Unit Service Manual 10.1.4.7. Aquasmart Table Access type: Read-only (force is possible) TABLE NAME: AQUASMRT, PIC Table Type: 12H, instance 7 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION CHIL_S_S Stop/Start Stop Unit Start/Stop HC_SEL 0 to 1 Heat/Cool Select EMSTOP Disable/Enable Disable...

  • Page 121: Setpoint Tables

    Monobloc Outdoor Unit Service Manual 10.1.5. Setpoint tables Setpoint tables provide information on temperatures to be achieved, including the reset adjustment. 10.1.5.1. Water Setpoint Table Access type: Read/Write TABLE NAME: WAT_STP, PIC Table Type: 17H, instance 1 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION...

  • Page 122: Poc Tables

    Monobloc Outdoor Unit Service Manual 10.1.5.2. Air Setpoint Table Access type: Read/Write TABLE NAME: AIR_STP, PIC Table Type: 17H, instance 2 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION htoccstp 12.0 to 34.0 19.0 °C Heat Home Setpoint 1, 2 htunooff -10.0 to 0.0 -2.0 Heat Sleep Offset 1, 3...
  • Page 123 Monobloc Outdoor Unit Service Manual Follower 10.1.6.2. 1 Status Table Access type: Read-only TABLE NAME: SLV1STAT, PIC Table Type: 615H, instance 2 PAR. NAME RANGE DEFAULT UNIT DESCRIPTION 1101 xx.x °C Entering Water Temp 1102 xx.x °C Leaving Water Temp 1103 mod_stat 0 to 101...

  • Page 124: Jbus / Modbus Details

    JBus / ModBus controller 11.1. As standard the Toshiba Monobloc outdoor units are supplied with a JBus / ModBus controller. The controller provides a secondary port to be connected to a system network thanks to an RS485 bus. The controller has the ability to communicate without an amplifier. The length of the bus does not exceed 500m.
  • Page 125 Monobloc Outdoor Unit Service Manual Par. Description Default Unit Jbus Modbus 0016H 4015H Requested Compr. Freq 1/10 Hz 0017H 4016H Actual Compressor Freq 1/10 Hz PMV Position step 0018H 4017H Upper Fan Speed 1000 001BH 401AH Lower Fan Speed 1000 001CH 401BH Exchanger Heater...
  • Page 126 Monobloc Outdoor Unit Service Manual Par. Description Default Unit Jbus Modbus Current SHC Runtime 00CFH 40CEH Current DHW Runtime 00D0H 40CFH DHW Exception Timer 1440 00D1H 40D0H DHW Diverting Valve 00D2H 40D1H DHW Elec Heat Stage 00D3H 40D2H DHW Running Status 00D4H 40D3H Chiller Water System Temp...
  • Page 127 Monobloc Outdoor Unit Service Manual Par. Description Default Unit Jbus Modbus Current Alarm #4 0161H 4160H Current Alarm #5 0162H 4161H Past Alarm #1 0168H 4167H Past Alarm #2 0169H 4168H Past Alarm #3 016AH 4169H Past Alarm #4 016BH 416AH Past Alarm #5 016CH...
  • Page 128 Monobloc Outdoor Unit Service Manual Par. Description Default Unit Jbus Modbus Maximum OAT for Heating 99.0 99.0 1/10°C Minimum OAT for Cooling -10.0 40.0 1/10°C Anti-Freeze Delta Stp 1/10 K Night Mode Start Time 00:00 23:59 00:00 hh:mm Night Mode Stop Time 0:00 23:59 00:00...
  • Page 129 Monobloc Outdoor Unit Service Manual Par. Description Default Unit Jbus Modbus Hour of Day N.A. Minute of Hour N.A. Day of Week N.A. Holiday Flags 00000000 11111110 N.A. Day of Month N.A. Month N.A. Year N.A. Domestic Hot Water Type DHW 3-way Valve run time DHW Priority Config.
  • Page 130 Monobloc Outdoor Unit Service Manual Par. Description Default Unit Jbus Modbus Factory Password 9999 **** Cooler Heater Type OEM Sub-code Heat Ctrl Proport. Gain 0.001 10.000 0.900 Heat Ctrl Integral Time Heat Ctrl Sampling Time Cool Ctrl Proport. Gain -10.000 -0.001 -0.900 Cool Ctrl Integral Time...
  • Page 131 Monobloc Outdoor Unit Service Manual Par. Description Default Unit Jbus Modbus 2303 Command 20H to Inverter 2304 Command 40H to Inverter 2305 Command 41H to Inverter 2306 Command 6EH to Inverter 2307 Command 6FH to Inverter 2308 Command 80H from Invertr 2309 Command 90H from Invertr 2310...

  • Page 132: Main Components Replacement

    Monobloc Outdoor Unit Service Manual Main components replacement 12.1. Open the front panel Tools: Screwdriver Steps: 1. Stop operation of the chiller/heat pump, and turn off switch of the breaker (unit or installation) 2. Unscrew the two screws of the front panel 3.

  • Page 133: Detachment Of The Rooftop

    Monobloc Outdoor Unit Service Manual 12.3. Detachment of the rooftop Tools: Screwdriver Steps: 1. Stop operation of the chiller/heat pump, and turn off switch of the breaker (unit or installation) 2. Unscrew the ten screws of the rooftop 3. Remove the rooftop 12.4.

  • Page 134: Fan Replacement

    Monobloc Outdoor Unit Service Manual 12.5. Fan Replacement Tools: Screwdriver Socket wrench of 10mm Steps: 1. Perform the works (12.1) and (12.3) 2. Open the fan grid - Remove the six screws from inside the top of the unit - Unclip the fan grid 3.

  • Page 135: Fixed Speed Pump Replacement

    Monobloc Outdoor Unit Service Manual 12.6. Fixed Speed Pump Replacement Tools: Screwdriver Wrench of 13mm Wrench of 55mm Steps: 1. Perform the works (12.1) and (12.2) 2. Empty the water of hydraulic circuit with the drain valve 3. Unscrew the four screws of pump electrical box 4.

  • Page 136: Remove Electrical Box

    Monobloc Outdoor Unit Service Manual 12.8. Remove Electrical Box Tools: Screwdriver Steps: 1. Perform the work of (12.2) 2. Disconnect the main power supply 3. When fixed speed pump is present inside the unit, then: - Unscrew the four screws of pump electrical box - Disconnect the four wires in being careful of wire locations to respect the order of phases 4.

  • Page 137: Compressor Replacement

    Monobloc Outdoor Unit Service Manual 12.9. Compressor Replacement Tools: Screwdriver Socket wrench of 13mm Steps: 1. Perform the works (12.1) and (12.2) 2. Reclaim refrigerant gas 3. Disconnect power of compressor and thermal cut off (directly on compressor) 4. De-braze compressor inlet / outlet 5.

  • Page 138: Accumulator Replacement

    Monobloc Outdoor Unit Service Manual 12.11. Accumulator Replacement Tools: Screwdriver Burner Steps: 1. Perform the work (12.2) 2. Reclaim refrigerant gas 3. Unbraze compressor inlet / outlet 4. Unscrew the accumulator from base pan Ensure flames of burner do not damage the close component 12.12.

  • Page 139: Bphe Replacement

    Monobloc Outdoor Unit Service Manual 12.13. BPHE Replacement Tools: Screwdriver Wrench of 5mm Wrench of 38mm Wrench of 51mm Wrench of 55mm Burner Steps: 1. Perform the works (12.1), (12.2), (12.3), (12.4) and (12.11) 2. Empty the water of hydraulic circuit with the drain valve 3.

  • Page 140: Receiver Replacement

    Monobloc Outdoor Unit Service Manual 12.14. Receiver Replacement Tools: Screwdriver Wrench of 5mm Burner Steps: 1. Perform the works (12.1), (12.2), (12.3), (12.4) and (12.15) 2. Remove the flexible pipe of water relief valve to access at receiver connection 3. Unbraze inlet / outlet receiver 4.

  • Page 141: 4-Way Valve / 2-Way Valve Coil Replacement

    Monobloc Outdoor Unit Service Manual 12.16. 4-Way Valve / 2-Way Valve Coil Replacement Tools: Screwdriver Steps: 1. Perform the works (12.1) and (12.2) 2. Disconnect the 4-way valve or 2-way valve on the inverter board 3. Unscrew the screw of coil and remove the coil from the body 4-way valve 2-way valve 2WV Coil...

  • Page 142: Hp Switch Replacement

    Monobloc Outdoor Unit Service Manual 12.19. HP Switch Replacement Tools: Screwdriver Wrench of 14mm Steps: 1. Perform the work (12.1) 2. Reclaim refrigerant gas 3. Unscrew the HP switch with wrench of 14mm 4. Replace by HP switch valve 12.20. Expansion Tank Replacement Tools: Screwdriver...

  • Page 143: Replacement Of The Service Pc Board

    Monobloc Outdoor Unit Service Manual Replacement of the service PC board 13.1. Inverter Box Replacement Tools: Screwdriver Steps: 1. Perform the works of (12.1, 12.2 and 12.3) 2. Disconnect all cables of the inverter box in being careful of wire locations - TL sensor - TS sensor - TD sensor...

  • Page 144: Nhc Board Replacement

    Monobloc Outdoor Unit Service Manual 13.2. NHC Board Replacement Tools: Screwdriver Steps: 1. Perform the work (12.2) 2. Remove the mechanical protection (unscrew two screws) 3. Disconnect all cables of NHC board in being careful of wire locations 4. Unclip NHC board 5.

  • Page 145: Downloading New Software Version

    Monobloc Outdoor Unit Service Manual Downloading new software version • Put unit in OFF mode, and wait the stop of unit. • Disconnect the wire connected on J6 on NHC board, and connect USB to Proprietary Protocol converter plug on this connector. •...
  • Page 146 Monobloc Outdoor Unit Service Manual • To verify Bus and Element numbers, launch Device Manager Click on: On “Address Search” window, click on “Search up”: The address of the connected NHC board will appear in the fields: ”Bus” and “Element”:- •...
  • Page 147 Monobloc Outdoor Unit Service Manual • Disconnect the USB to Proprietary Protocol converter plug from J6 on NHC board, and reconnect the correct wire.

  • Page 148: Periodic Inspection Items

    Monobloc Outdoor Unit Service Manual Periodic inspection items 15.1. Refrigerant charge RUA-CP1701H* / RUA-CP2101H* units are designed for use with R410a only. DO NOT USE ANY OTHER REFRIGERANT in these units. R410a is only compatible with oils selected by the compressor manufacturer (POE – •...

  • Page 149: Cleaning The Coil

    Monobloc Outdoor Unit Service Manual Charge • DO NOT OVERCHARGE the system. Overcharging results in higher discharge pressure, which could lead to possible compressor damage and also higher power consumption. Refer to Physical Data tables supplied in the installation instructions RUA-CP 1701 1701H 2101 2101H Refrigerant charge R410a * kg 6.25...

  • Page 150: Procedure

    Monobloc Outdoor Unit Service Manual Cleaning must be carried out with a soft brush or a vacuum cleaner from top to bottom and bottom to top, never across to avoid damaging the fins. 15.2.3. Procedure • Tools Vacuum cleaner • Water spray with large diffuser (25-30°) 1.

  • Page 151: Pump

    Monobloc Outdoor Unit Service Manual 4. Clean the filter with water 5. Replace the screen filter and screw back in Water filter Unscrew filter and remove the screen filter 15.4.3. Pump The following is a check list for fixed speed pump procedures: Action Reference Note...

  • Page 152: High Pressure Switch Test

    Monobloc Outdoor Unit Service Manual 15.5. High Pressure switch test These service instructions describe the procedures and products to be used to check the correct operation of HP switch in system, and verify and record the pressure target of high pressure switch. Indeed, according to national regulations, check the protection devices on site in accordance with standards EN 378/ISO 5149: once a year for the high-pressure switches, every five years for external relief valves.

  • Page 153: Other Checks On Unit

    Monobloc Outdoor Unit Service Manual 15.6. Other checks on Unit It is useful to check periodically the tightening torques for main electrical components and mechanical connections. 15.6.1. Tightening torques for the main electrical components Component Designation in the unit Value (N.m) Disconnecting switch (option) L1 /L2 /L3/N/PE 1,5 to 1,8...

  • Page 154: Outdoor Unit Exploded View & Parts List

    Monobloc Outdoor Unit Service Manual Outdoor unit exploded view & parts list 16.1. 17kW Fixed Speed / Variable Speed / Pumpless...
  • Page 155 CABLE 43E50004 TEMPERATURE SENSOR (DHW) 43E50005 TEMPERATURE SENSOR (CHWS) 43E0A018 PLATE (SE + UNIT) 43E11007 INSULATION 43E61001 ELECTRICAL BOX 4304C703 COMPRESSOR TOSHIBA DA422A3F-27M 43E5Q003 JOINT 43E50001 TEMPERATURE SENSOR (EWT & LWT) 43E57001 CORD HEATER 43E11001 INSULATION 43E11002 INSULATION 43E0A010 CROSSBEAM...
  • Page 156 Monobloc Outdoor Unit Service Manual Number of pieces per unit Location Part No. Description RUA-CP1701HFP8(Z)-E RUA-CP1701H8(Z)-E RUA-CP1701HL8(Z)-E 43E50006 PROBE 43E4N012 VALVE 43E0S001 FAN BLADES 43E2C001 FAN MOTOR 43E0A014 GRILL 2 43E0A015 GRILL 2 43E61008 ELECTRONIC BOARD 43E61007 ELECTRONIC BOARD 43E61009 ELECTRONIC BOARD 43E4N014 COIL...

  • Page 157: W Fixed Speed / Variable Speed / Pumpless

    Monobloc Outdoor Unit Service Manual 16.2. 21kW Fixed Speed / Variable Speed / Pumpless...
  • Page 158 CABLE 43E61005 CABLE 43E50004 TEMPERATURE SENSOR (DHW) 43E50005 TEMPERATURE SENSOR (CHWS) 43E4N002 COIL 43E11007 INSULATION 43E61002 ELECTRICAL BOX 43141513 COMPRESSOR TOSHIBA DA550A3F-11M 43E5Q003 JOINT 43E50001 TEMPERATURE SENSOR (EWT & LWT) 43E57001 CORD HEATER 43E11001 INSULATION 43E11002 INSULATION 43E0A010 CROSSBEAM 43E46002...
  • Page 159 Monobloc Outdoor Unit Service Manual Number of pieces per unit Location Part No. Description RUA-CP2101HFP8(Z)-E RUA-CP2101H8(Z)-E RUA-CP2101HL8(Z)-E 43E4N009 COIL 43E51004 HP PRESSURE SWITCH 43E51005 BP SENSOR 43E45004 COPPER TUBE 43E50006 PROBE 43E4N011 4-WAY VALVE 43E0S001 FAN BLADES 43E2C001 FAN MOTOR 43E0A014 GRILL 2 43E0A015...
  • Page 160 Monobloc Outdoor Unit Service Manual...
  • Page 161 Monobloc Outdoor Unit Service Manual...
  • Page 164 TOSHIBA CARRIER EUROPE S.A.S Route de Thil 01120 Montluel France 1402410501R03...

This manual is also suitable for:

Estia rua-cp2101h

Table of Contents