Toshiba VN-M1000HE1 Service Manual
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Toshiba VN-M1000HE1 Service Manual

Toshiba VN-M1000HE1 Service Manual

Air to air heat exchanger
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FILE No. A10-1820
Revision 1: Jun., 2018
Revision 2: Dec., 2021
Air to Air Heat Exchanger
SERVICE MANUAL
Concealed microcomputer control type
Model name:
VN-M1000HE1
VN-M1500HE1
VN-M2000HE1
PRINTED IN JAPAN, Par, 2018, TBLS

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Summary of Contents for Toshiba VN-M1000HE1

  • Page 1 FILE No. A10-1820 Revision 1: Jun., 2018 Revision 2: Dec., 2021 Air to Air Heat Exchanger SERVICE MANUAL Concealed microcomputer control type Model name: VN-M1000HE1 VN-M1500HE1 VN-M2000HE1 PRINTED IN JAPAN, Par, 2018, TBLS...

  • Page 2: Table Of Contents

    Contents 1 Features ............10 2 Specifications .

  • Page 3: Original Instruction

    • The qualified service person is a person who installs, repairs, maintains, relocates and removes the Air to Air Heat Exchanger made by Toshiba Carrier Corporation. He or she has been trained to install, repair, maintain, relocate and remove the Air to Air Heat Exchanger made by Toshiba Carrier...
  • Page 4 Definition of Protective Gear When the Air to Air Heat Exchanger is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.
  • Page 5 Warning Indications on the Air to Air Heat Exchanger Unit [Confirmation of warning label on the main unit] Confirm that labels are indicated on the specified positions. If removing the label during parts replace, stick it as the original. Warning indication Description WARNING WARNING...

  • Page 6: Precautions For Safety

    Precautions for Safety The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker for Air to Air Heat Exchanger to the OFF position.
  • Page 7 WARNING Before starting to repair the Air to Air Heat Exchanger, read carefully through the Service Manual, and repair the Air to Air Heat Exchanger by following its instructions. Only qualified service person (*1) is allowed to repair the Air to Air Heat Exchanger. Repair of the Air to Air Heat Exchanger by unqualified person may give rise to a fire, electric shocks, injury, water leaks and/or other problems.
  • Page 8 If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical parts with the electrical control cover of one or more of the Air to Air Heat Exchanger removed in order to find out exactly where the trouble lies, put a sign in place so that no-one will approach the work location before proceeding with the work.
  • Page 9 Relocation • Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the Air to Air Heat Exchanger. It is dangerous for the Air to Air Heat Exchanger to be relocated by an unqualified individual since a fire, electric shocks, injury, water leakage, noise and/or vibration may result.

  • Page 10: Specifications

    Sound pressure level(dBA) Weight (kg) VN-M1000HE1 VN-M1500HE1, M2000HE1 * Under 70 dB(A) Declaration of Incorporation of Partly Completed Machinery Manufacturer: Toshiba Carrier Corporation 336 Tadehara, Fuji-shi, Shizuoka-ken 416-8521 JAPAN Representative/ TOSHIBA CARRIER TCF holder: EUROPE S.A.S Route de Thil 01120 Montluel FRANCE...

  • Page 11: Features

    Features  Main features The ventilation balance of air supplying and air exhausting can be changed. The filter inspection display function calculates the total ◆ Power saving ventilation running time and prompts you through the remote controller to inspect the filter. The cost of cooling and heating is reduced thanks to The cold mode function automatically makes the air the unit efficiently retrieving thermal energy (outdoor...

  • Page 12: Specifications

    Specifications  Concealed microcomputer control type Model No. Item VN-M1000HE1 VN-M1500HE1 VN-M2000HE1 Fan Speed Type Concealed type Power Supply (V) 220-240 V~, 50 Hz (Extra high) Heat Exchange High Mode Power consumption (Extra high) Bypass High Mode (Extra high) 2.40 3.69...
  • Page 13 Model No. Item VN-M1000HE1 VN-M1500HE1 VN-M2000HE1 Fan Speed (Extra high) 38.0 41.0 41.5 Heat Exchange High 37.0 40.0 40.5 Mode 33.0 36.0 36.5 Sound pressure level (dB(A)) (Extra high) 38.0 41.0 41.5 Bypass High 37.0 40.0 40.5 Mode 33.0 36.0 36.5...

  • Page 14: Model List

    Model List VN-M1000HE1 Unit: mm Damper motor Heat exchanger Damper element (2) 1099 (Return (Exhaust Air) Air) Outdoor Indoor side side (Supply (Outdoor Air) Air) Motor Motor Hanging bracket (4) (Exhaust Air) (Supply Air) 4-13×30 oval hole An inspection opening is...

  • Page 15: Reference Diagram

    VN-M1500/M2000HE1 Unit: mm Heat exchanger Damper motor element (2) Damper 1099 (Return (Exhaust Air) Air) Indoor side Outdoor side (Supply (Outdoor Air) Air) Adapter (4) Motor Motor (Outdoor side) (Exhaust Air) (Supply Air) Hanging bracket (4) 4-13×30 oval hole 1189 Fixed part of inspection cover Adapter(4)

  • Page 16: Connection Diagram

    Connection diagram...

  • Page 18: Parts Rating

    Parts Rating Model VN-M 1000HE1 1500HE1 2000HE1 Fan motor (for supply air) ICF-340D138-2 Fan motor (for exhaust air) ICF-340D138-1 TOA sensor Ø5 size lead wire length : 1200mm vinyl tube (Red) TRA sensor Ø5 size lead wire length : 1200mm non-migratory tube (Black) Damper motor MP24ZN...

  • Page 19: Control Outline

    Control Outline  Air to Air Heat Exchanger Control Specifications Item Specification outline Remarks When the power 1. If the power supply is reset during the occurrence of a trouble, the check code is is reset cleared. If an abnormal state continues even after the unit is restarted by pressing the [ON/ OFF] button on the remote controller, the check code is redisplayed on the remote controller.
  • Page 20 Item Specification outline Remarks Ventilation Automatic ventilation mode control in the Air to Air Heat mode control Exchanger system (continued) Heat Exchange Cooling zone Bypass Fan zone Heat Exchange Bypass Undefined Heating zone zone Undefined Heat Exchange zone RA: Return Air (°C) Start operation Ventilation mode Automatic...
  • Page 21 Item Specification outline Remarks Ventilation 2. Air to Air Heat Exchanger system linked with air conditioners mode control 1) Automatic ventilation mode control in the air-conditioning linkage (continued) • Determine the mode from the operation mode of the air conditioner. [Cooling zone]: The air conditioner operation mode is Automatic cooling, Cooling, or Drying mode.
  • Page 22 Item Specification outline Remarks Ventilation Heating zone mode control (continued) Maximum set Bypass temperature Undefined zone Heat Exchange RA: Return Air (°C) Start operation Automatic ventilation determination in air conditioning linkage Cooling or Drying mode Cooling zone Heating zone RA, OA RA, OA detection detection...
  • Page 23 Item Specification outline Remarks 24-hour 1. 24-hour ventilation operation and setting CODE No. (DN) ventilation • By operating the [ON/OFF] and [VENT] buttons during operation of Air to Air [47][31][49][4A] control Heat Exchangers, they stop operation and the system moves to 24-hour ventilation (low): 60 minutes ON, 60 minutes OFF.
  • Page 24 Item Specification outline Remarks Nighttime heat This function is valid only for the Air to Air Heat Exchanger system linked with air CODE No. (DN) purge control conditioners (invalid for the Air to Air Heat Exchanger system only). [4C][47] 1. If the [ON/OFF] button is pressed during operation, the Air to Air Heat Exchangers and the air conditioners stop, and the system enters the nighttime heat purge mode (standby mode).
  • Page 25 Item Specification outline Remarks Nighttime heat Nighttime heat purge control purge control (continued) Cooling zone Bypass Heat Exchange Minimum set Undefined temperature zone RA: Return Air (°C) Air to Air Heat Exchangers and air conditioners are stopped. 24-hour ventilation setting invalid Start 24-hour ventilation Air to Air Heat Exchanger system linked with air conditioners...
  • Page 26 Item Specification outline Remarks Cold mode 1. Even in Bypass mode control, the system automatically enters Heat Exchange CODE No. (DN) control mode to prevent condensation if OA RA/10°C + 12.5°C. [4D] • The display on the remote controller remains “Bypass mode” regardless of the ventilation mode in actual operation.
  • Page 27 Item Specification outline Remarks Cold mode Operating control (continued) RA/10°C + 12.5°C Heat Exchange Present ventilation mode continues Zone A? Zone B? Zone C DN [4D] Exhausting fan runs: 0000 Heat Exchange Heat Exchange Supplying fan Heat Exchange Supplying fan Heat Exchange Supplying fan mode continues stops (OFF for 10 minutes and...
  • Page 28 Item Specification outline Remarks Selection of 1. The range of operations that can be performed by operating the remote controller • “ ” lights up while central control of the Air to Air Heat Exchanger can be determined through the setting of the in central control mode central controller.
  • Page 29 Item Specification outline Remarks Electric damper ■In order to use this function, it is necessary to use the application control kit (TCB- CODE No. (DN) output PCUC2E: sold separately). [5C] 1. Output setting f or electric damper • Application control kit •...
  • Page 30 Item Specification outline Remarks Start/Stop input ■ In order to use this function, it is necessary to use the remote ON/OFF adapter CODE No. (DN) (Linked (TCB-KBCN61HAE: sold separately). [4E] operation with ■ Connect the adapter to CN61 on the Control P.C. Board (A) of the Air to Air Heat external Exchanger.
  • Page 31 Item Specification outline Remarks Cold air detection When the cold air is detected with TOA sensor, digital output is ON. TOA sensor output Temp. out air (Cold air detection) <Control outline> sensor 1. ON conditions for output Output is ON if all following conditions are satisfied. DN code •...
  • Page 32 Item Specification outline Remarks Cold air detection <How to install > output • Prepare the following parts to use this control. (Cold air detection) Name Q’ty Work item Wire (A) TCB-KBCN32VEE (Connection from CN32 to relay) Relay (DC12V) Local procurement Local procurement Wire (B) (Connection from relay to external device)

  • Page 33: Applied Control And Functions (Including Circuit Configuration)

    Power Secondary Weekly timer can not be communication circuit Circuit battery connected Up to 8 units can be connected Air to Air Heat Exchanger (VN-M1000HE1) #1 Follower Follower Branch P.C.Board for UART Control P.C.board (A) Control P.C.board (B) (MCC1643) (MCC1643)
  • Page 34 VN-M1500/M2000HE1 Wird(simple) header remote controller Schedule timer Display LCD Function setup Display Driver EEPROM key switch Function setup Display LCD DC5V DC5V Power key switch Circuit Remote controller Power Secondary communication circuit Circuit battery Weekly timer can not be connected Up to 8 units can be connected to a simple wired remote controller.
  • Page 35 7-2. Indoor Printed Circuit Board MCC-1643 7-2-1.Indoor Printed Circuit Board...
  • Page 36 7-2-2.Indoor Printed Circuit Board (MCC-1712-01)
  • Page 37 7-3. Functions at Test Operation ◆ Checking ventilation mode test operation Starting and stopping test operation ▼ Performing test operation from the indoor remote controller Wired remote controller Procedure Operation When the button is pushed for 4 seconds or more, “TEST” is displayed in the display section, and the unit enters test operating mode.
  • Page 38 7-4. Specifications of Optional Connectors on the Air to Air Heat Exchanger Unit Board External input / output function List Connector No. Pin No. Function Note CN32 Cold air detection output Detects cold air and turns on the output. Start / Stop input Start/Stop input (pulse/static input changed by J01 Connect / Cut = Pulse input / Static input) COM (0V)
  • Page 39 7-5. Configuring the Function Settings of the Air to Air Heat Exchanger Unit (When configuring the settings, use the wired remote controller.) <Procedure> Stop running the unit before configuring the settings. Press and hold the buttons for 4 seconds or longer. The Unit No.
  • Page 40 Codes (DN codes) for changing settings (Necessary for local advanced control) The following DN codes are used in common for NRC-01HE, RBC-AMT32E, and RBC-AMS41E, RBC-AMS55E*. Code Description SET DATA and description Factory default Note Lighting-up 0000: None 0002: 2500 H Adjusting this setting is necessary for the hours of the 0001: 150 H...

  • Page 41: Factory Default

    Code Description SET DATA and description Factory default Note Setting of the 0000: Exhausting fan run 0000: Exhausting fan run Adjusting this setting is necessary for all exhausting fan 0001: Exhausting fan stop the Air to Air Heat Exchangers in the group. operation below * The supplying fan stops when −15°C (OA)

  • Page 42: Code Description

    Code Description SET DATA and description Factory default Note Automatic 0000: Valid only when air- 0000: Valid only when air- Adjusting this setting is necessary for all ventilation conditioner is running conditioner is the Air to Air Heat Exchangers in the group. control in air- 0001: Valid even when air- running...
  • Page 43  Remote controller switch monitoring function This function is available to call the service monitor mode from the remote controller during a test run to acquire temperatures of sensors of indoor unit (Air to Air Heat Exchanger). Push buttons simultaneously for at least 4 seconds to call the service monitor mode.

  • Page 44: Air To Air Heat Exchanger Unit And Air-Conditioning System

    Air to Air Heat Exchanger Unit and Air- Conditioning System Examples of connections available when installing an Air to Air Heat Exchanger unit (VN-M OO HE, HE1) Classified by specifications Indoor unit compatible with Air Indoor unit not yet compatible Air to Air Heat Exchanger unit to Air Heat Exchanger with Air to Air Heat Exchanger...
  • Page 45  List of Indoor Units (SMMS Series) Compatible with the Air to Air Heat Exchanger Unit • “O” in the tables indicates an indoor unit compatible with the Air to Air Heat Exchanger unit. * For the 4-way air discharge type/2-way air discharge type, products produced in September 2010 or later are compatible.
  • Page 46  List of Indoor Units (DI, SDI Series) Compatible with Air to Air Heat Exchanger Unit • “O” in the tables indicates an indoor unit compatible with the Air to Air Heat Exchanger unit. * For the 4-way air discharge type/Duct type/Slim duct type, products produced in September 2010 or later are compatible.
  • Page 47 Air to Air Heat Exchanger Unit and (SMMS Series) Air-Conditioning System Air to Air Heat Exchanger only System Central control Address Linked with air-conditioner (Not linked with air-conditioner) Outdoor Outdoor unit unit U1 U2 U1 U2 U1 U2 U1 U2 U1 U2 U1 U2 Indoor...
  • Page 48 Air to Air Heat Exchanger Unit and (DI, SDI Series) Air-Conditioning System Air to Air Heat Exchanger only System Central control Address Linked with air-conditioner (Not linked with air-conditioner) Outdoor Outdoor unit unit 1 2 3 1 2 3 1 2 3 1 2 3 Indoor Indoor...

  • Page 49: Failure Diagnosis

    Failure Diagnosis 9-1. Failure Diagnosis 9-1-1. Before diagnosing failure Symptom Cause • Is the circuit breaker turned off? • Has a power failure occurred? Operation does not start after pressing • Does the indicator light up? the button. (The ventilation delay setting is set to CODE No. [49] “ON” and it is not malfunction.
  • Page 50 9-2. How to Check for Troubles The remote controller (local remote controller or central control) is equipped with an LCD that displays the operation status. If a trouble has occurred, see the following table to check the trouble of the Air to Air Heat Exchanger unit using the failure diagnosis function.

  • Page 51: Troubleshooting

    9-3. Troubleshooting  Confirmation of trouble history When a trouble occurred on the Air to Air Heat Exchanger, the trouble history can be confirmed with  Confirmation and check the following procedure. (The trouble history is stored in memory up to 4 troubles.) When a trouble occurred in the Air to Air Heat The trouble can be confirmed from both operating Exchanger, the check code and the unit No.
  • Page 52  TCC Link Central Control Remote Controller (BMS-CM1280TLE) (1) Checking and testing If a trouble has occurred in the Air to Air Heat Exchanger, the check code and the unit No. of the Air to Air Heat Exchanger appear on the display of the remote controller. Unit No.

  • Page 53: System Status

    9-4. Check Codes Displayed on the Remote Controller and Locations to Be Checked Check code Location Check code Trouble detection System status Items to check (locations) Remote name conditions detection controller Remote Indoor–remote Stop of Communication between • Check remote controller inter-unit tie cable controller controller corresponding...
  • Page 54 Check code Location Check code Trouble detection System status Items to check (locations) Remote name conditions detection controller Indoor Indoor group/ Stop of Address has not been • Check indoor address. addresses not set corresponding set. Note: unit only This code is displayed when the power is turned on for the first time after installation.

  • Page 55: Temperature Sensor Characteristics

    9-5. Sensor Characteristics Air to Air Heat Exchanger ▼ Temperature Sensor Characteristics Characteristic 1 Characteristic 2 Return air temperature Outdoor air temperature sensor (TRA) sensor (TOA) Resistance Resistance (kΩ) (kΩ) (10°C or (10°C or less) more) -1 0 Temperature (°C) Temperature (°C)

  • Page 56: Exchanging And Assembling The Main Components

    Exchanging and Assembling the Main Components  Assembling and exchanging the fan components Components CAUTION WARNING Be sure to put on gloves during working time; Be sure to stop operation of the Air to Air Heat otherwise an injury will be caused by a part etc. Exchanger before work and then turn off switch of the breaker.
  • Page 57 Foam cover (COVER, FOAM) Left right Electrical control 6. Remove the two screws (M4×6) that fix the cover electrical control cover (COVER, PC BOARD), (COVER, PC then open the cover Screws (M4×6) Screws (M4×10) BOARD) (VN-M1000HE1) Screws (M4×10) Screws (M4×6)
  • Page 58 CONNECTOR CONNECTOR BOARD) to remove two fan motor leads from for Exhaust motor for Supply motor (VN-M1000HE1) CN210 white CONNECTORs. (CN210 white) (CN210 white) CN210 white CONNECTOR on the P.C board at the right is for the connection of the Supply motor lead.
  • Page 59 Component Procedure Note Connector of motor 9. Open the electrical control cover (COVER, Upper PC BOARD) to remove four fan motor leads (VN-M1500HE1 from CN210 white CONNECTORs. VN-M2000HE1) CN210 white CONNECTOR on the P.C board at the right is for the connection of the Supply motor lead.
  • Page 60 Component Procedure Note Fan (FAN) 11.Release the big clamp (CLAMP) that fixes the Exhaust motor Supply motor 1, 2, 4 to 13 cords of the supply motor (MOTOR, SUPPLY) (MOTOR, EXHAUST) (MOTOR, SUPPLY) and exhaust motor (MOTOR, EXHAUST). Big clamp (CLAMP) Release 12.Remove the screws that fix the motor holder...
  • Page 61 Lid holder (HOLDER, 19.Remove the four screws (M4×6) that fix the lid Screws LID) holders to remove the holders. (M4×6) 1, 17, 19 There are two lid holders (HOLDER, LID) in each (VN-M1000HE1) unit. Lid holder (HOLDER, LID) Screws (M4×6)
  • Page 62 Component Procedure Note Lid holder (HOLDER, 20.Remove the eight screws (M4×6) that fix the lid LID) holders to remove the holders. 1, 17, 20 There are four lid holders (HOLDER, LID) in each Screws (VN-M1500HE1, unit. (M4×6) VN-M2000HE1) Lid holder Screws (HOLDER, (M4×6)
  • Page 63 27.Disconnect all the connectors from base the PC board (PC BOARD). (LID, ELECTRIC Thread all the connectors through : Connectors PARTS) the cord bushes. (VN-M1000HE1) 6, 27, TOA Sensor Electrical control base CONNECTOR (LID, ELECTRIC PARTS) (CN102 Red) Refer to 32...
  • Page 64 Component Procedure Note Electrical control 28.Disconnect all the connectors from base the PC board (PC BOARD). TRA or TOA sensor, (LID, ELECTRIC Thread all the connectors through the cord Remote controller communication PARTS) bushes. and Central CONNECTOR. (VN-M1500HE1 For detail, refer to VN-M2000HE1) 7, 28 UART...
  • Page 65 Component Procedure Note PC board 29.Remove the screws (M4×6) that fix the earth wire. (PC BOARD) Remove the eight spacers from the PC board : Spacer (SPACER) 6 to 9, 27 to 29 (PC BOARD). Spacer (SPACER) 30.Squeeze the lock of the spacer (SPACER) to 6,7, 27, 28, 29, 30 remove it from the electrical control base (LID, ELECTRIC PARTS).
  • Page 66 TOA), then remove the TOA sensor. *Upper unit only Release Reactor 34.Disconnect all the reactors from the unit. Screws (VN-M1000HE1) 1) Remove four screws (M4×6) that fix (M4×6) 6, 34 the electric control box. 2) Remove the box while lifting it up slightly and then put down the box as shown photo at the right below.
  • Page 67 Component Procedure Note Reactor 35.Disconnect all the reactors from the holder. Screws (VN-M1500HE1) 1) Remove eight screws that fix the electric (M4×6) (VN-M2000HE1) control box. 7, 35 2) Remove the box while lifting it up slightly and then put down the box as shown photo at the left below.

  • Page 68: How To Replace The Pc Board For Service On The Air To Air Heat Exchanger

    How to replace the PC board for service on the Air to Air Heat Exchanger <Models> 411-75-205 VN-M****HE1 (MCC-1643)  Note : when replacing the P.C. board for indoor unit servicing The nonvolatile memory (hereafter called EEPROM, IC503)on the indoor unit P.C. board before replacement includes the model specific type information and capacity codes as the factory-set value and the important setting data which have been automatically or manually set when the indoor unit is installed, such as system/indoor/group addresses, setting, etc.
  • Page 69 If the plug for short-circuit is attached on the P.C. board before replacement, attach it on the P.C. board replaced. SW501 CN71(White) setting(p.c.board A only) CN71 Adress setting (Group control) short Follower (Default) open Header/Individual <VN-M1000HE1> <VN-M1500/2000HE1> open open open open 1:ON open open 1:ON...
  • Page 70 [3] Writing the setting data to EEPROM Step 4 Write the on-site setting data to the EEPROM, such The settings stored in the EEPROM of the P.C. board for as address setting, etc. Perform the steps 1 and 2 indoor unit servicing are the factory-set values. above again.
  • Page 71 Table 1.Setting data (CODE No. table (example)) Item Setting data Factory-set value Lighting-up hours of the Filter Sign 0002:2500H Extent of filter clogging 0000:Normal Central control address 0099:Unfixed 0050:Air to Air Heat Exchanger Model code (Ceiling-embedded) Capacity code Depending on the capacity Indoor unit address 0001:Address No.1 Group address...

  • Page 72: Exploded Diagram/Parts List

    Exploded Diagram/Parts List VN-M1000HE1,VN-M1500HE1,VN-M2000HE1 Refer to the next page for the detailed contents of this part.
  • Page 73 VN-M1500HE1,VN-M2000HE1 Upper unit Lower unit...
  • Page 74 Q'ty/Set Location Part No. Description VN-M1000HE1 VN-M1500HE1 VN-M2000HE1 41112642 HOLDER, LID 41112643 LEVER, LID 41112644 COUPLING 41118427 SCREW, TAPPING 4111A681 HOLDER, MOTOR 41118648 DAMPER 41119476 HEAT EXCHANGER 4111A571 CASE ASSY, EXHAUST 4111A573 STAY, DAMPER MOTOR 4111A582 RAIL 41120537 41129222 WASHER...
  • Page 77 Q'ty/Set Location Part No. Description VN-M1000HE1 VN-M1500HE1 VN-M2000HE1 41175208 SENSOR, TOA 41175207 SENSOR, TRA 41179629 REACTOR, CH-85-Z-SJ 43058276 REACTOR, CH-47-Z-T 43160626 TERMINAL BLOCK, 2P, 20A 43160582 TERMINAL, 4P 43160467 TERMINAL, 2P 41175205 PC BOARD ASSY, MCC-1643 41175206 PC BOARD ASSY, MCC-1712...

  • Page 78: Revision Record

    Copyright © 2021 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved. Revision record First issue — — Apr,. 2018 Revision 1 Cold air detection output was added. Page 30, 31, 37, 40 Jun,. 2018 Revision 2 Corrected the service parts list number.

This manual is also suitable for:

Vn-m1500he1Vn-m2000he1

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