Toshiba HWT-1102S21SM3W-E(TR) User Manual

1
AIR TO WATER HEAT PUMP
Service Manual
FILE No. AE0-2203W
-All In One Type-
Model name:
Hydro unit
HWT-602S21SM3W-E(TR)
HWT-602S21SM6W-E(TR)
HWT-602S21ST6W-E(TR)
HWT-602S21MM3W-E(TR)
HWT-602S21MM6W-E(TR)
HWT-602S21MT6W-E(TR)
HWT-1102S21SM3W-E(TR)
HWT-1102S21SM6W-E(TR)
HWT-1102S21ST6W-E(TR)
HWT-1102S21ST9W-E(TR)
HWT-1102S21MM3W-E(TR)
HWT-1102S21MM6W-E(TR)
HWT-1102S21MT6W-E(TR)
HWT-1102S21MT9W-E(TR)
HWT-1402S21SM3W-E(TR)
HWT-1402S21SM6W-E(TR)
HWT-1402S21ST6W-E(TR)
HWT-1402S21ST9W-E(TR)
HWT-1402S21MM3W-E(TR)
HWT-1402S21MM6W-E(TR)
HWT-1402S21MT6W-E(TR)
HWT-1402S21MT9W-E(TR)
Outdoor unit
HWT-401HW-E(TR)
HWT-601HW-E(TR)
HWT-801HW-E(TR)
HWT-1101HW-E(TR)
HWT-1401HW-E(TR)
HWT-801HRW-E
HWT-1101HRW-E
HWT-1401HRW-E
HWT-801H8W-E
HWT-1101H8W-E
HWT-1401H8W-E
HWT-801H8RW-E
HWT-1101H8RW-E
HWT-1401H8RW-E

Toshiba HWT-1102S21SM3W-E(TR) Specifications

General

Brand	Toshiba
Model	HWT-1102S21SM3W-E(TR)
Category	Heat Pump
Language	English

Summary

Service Manual

Definition of qualified installer or qualified service person

Warning indications on the Air to Water Heat Pump

Precaution for safety

Refrigerant safety precautions

1 Specifications

2 Construction views (External views)

2-1. Hydro unit

2-2. Outdoor unit

3 Refrigeration cycle / Water system diagram

3-1. Water system diagram

3-2. Refrigeration cycle system diagram

4 Wiring diagram

4-1. Hydro unit

Details the electrical connections and component layout for the Hydro unit's main and sub control boards.

4-2. Outdoor unit

5 Key electric component rating

5-1. Hydro unit

Details the ratings and specifications of various electrical components within the Hydro unit.

5-2. Outdoor unit

6 Refrigerant (R32)

6-1. Safety during installation / servicing

Provides critical safety guidelines for handling R32 refrigerant during installation and servicing.

6-2. Refrigerant piping installation

6-2-1. Piping materials and joints used

6-2-2. Processing of piping materials

6-4. Recharging of refrigerant

6-5. Brazing of pipes

6-5-3. Brazing

6-6. Instructions for re-use piping of R22 or R407C

6-7. Charging additional refrigerant

6-8. General safety precautions for using R32 refrigerant

6-8-1. Recovery

6-8-2. Decommissioning

7 Operational description

7-1. Basic Operation

7-2. Operation Mode and Control Method

7-2. Operation Mode and Control Method

7-3. Hydro Unit Control

7-3. Hydro Unit Control

7-4. Outdoor unit control

7-4. Outdoor unit control

8 Method of failure diagnosis

8-1. Matters to be confirmed first

8-3. Outline of the determination diagram

8-3-4. How to diagnose by check code

8-4. Diagnosis flow chart for each check code

8-4-1. Hydro unit failure detection

Details the diagnostic steps for Hydro unit failures, including flowing quantity issues.

8-4-2. Outdoor unit failure detection

8-4-1. Hydro unit failure detection

8-4-3. Temperature sensor, temperature-resistance characteristic table

8-5. Operation check by PC board switch

9 Hydro unit and outdoor unit settings

1. Hydro unit Setting

Details the DN codes and their default settings for Hydro unit configuration.

DN table

3. Test run

6. Scheduled Operation Setting

7. Frost protection Setting

9. Anti bacteria Setting

10. Hot water boost Setting

12. Forced Defrosting Setting

14. Failure History Calling Function

19. Outdoor Unit Setting

19-1. Refrigerant recovery control

19-2. Service support functions (LED indication, Switch operation method)

10 Replacement of the service PC board

1. Hydro unit

2. Outdoor unit

11 How to exchange main parts

1. Hydro Unit

Outlines the procedures for exchanging main parts, starting with the Hydro unit's front panel.

2-1. HWT-401HW-E(TR), HWT-601HW-E(TR)

① Common procedures

Details common procedures for removing and attaching front panels and top covers for outdoor units.

2-3. HWT-1401HW-E(TR), HWT-1401HRW-E

⑤ Electrical IPDU (MCC-1705)

Details the replacement of the Electrical IPDU (MCC-1705) for compressors and fan motors.

13 Periodic inspection items

14 Part exploded view, part list

Hydro Unit

Shows an exploded view and part list for the Hydro Unit assembly.

14 Part exploded view, part list

15 Appendix

REPLACEMENT OF SERVICE PC BOARD (MCC-1753)

15 Appendix