Toshiba HWT-1102S21SM3W-E(TR) - 4-3.Hot Water Cylinder Unit

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4-3. Hot water cylinder unit

Green /

Yellow

Blue Blue

Brown

TTW sensor

Hot water cylinder heater

To hydro unit

Supply 220 - 240 V from hydro unit

Cable size 1.5 mm

(minimum)

Double pole thermal cut out

Main Page

Table of Contents2
Specifications19
Construction Views (External Views)24
2-1.Hydro Unit24
2-2.Outdoor Unit25
Refrigeration Cycle / Water System Diagram27
3-1.Water System Diagram27
3-2.Refrigeration Cycle System Diagram29
Wiring Diagram30
4-1.Hydro Unit30
4-2.Outdoor Unit32
4-3.Hot Water Cylinder Unit36
Key Electric Component Rating37
5-1.Hydro Unit37
5-2.Outdoor Unit43
5-3.Hot Water Cylinder Unit44
5-4.Water Heat Exchange Control Board45
5-5.Outdoor Control Board48
Refrigerant (R32)54
6-1.Safety During Installation / Servicing54
6-2.Refrigerant Piping Installation55
6-2-1.Piping Materials and Joints Used55
6-2-2.Processing of Piping Materials56
6-3.Tools57
6-3-1.Required Tools57
6-4.Recharging of Refrigerant58
6-5.Brazing of Pipes59
6-5-1.Materials for Brazing59
6-5-2.Flux60
6-5-3.Brazing60
6-6.Instructions for Re-Use Piping of R22 or R407C61
Basic Conditions Needed to Reuse the Existing Pipe61
Restricted Items to Use the Existing Pipes61
Branching Pipe for Simultaneous Operation System62
6-6-4. Curing of Pipes62
6-6-5.Final Installation Checks62
6-6-6.Handling of Existing Pipe63
6-6-7.Recovering Refrigerant63
Charging Additional Refrigerant63
Assumed Gas Leak]63
Limiting the Additional Charge]63
Cautions on Charging Additional Refrigerant]63
6-8.General Safety Precautions for Using R32 Refrigerant64
6-8-1.Recovery64
6-8-2.Decommissioning64
6-8-3.Labelling64
Operational Description65
Method of Failure Diagnosis111
8-1.Matters to be Confirmed First111
8-1-1.Check the Power Supply Voltage112
Check for any Miswiring of the Connection Cables112
Between the Hydro Unit and the Outdoor Unit112
8-1-3.About the Installation of the Temperature Sensor112
Non-Defective Operation (Program Operation)112
8-3.Outline of the Determination Diagram113
8-3-1.Procedure of Failure Diagnosis113
How to Determine from the Check Code on the Remote Controller113
8-3-3.How to Cancel a Check Code on the Remote Controller113
8-3-4.How to Diagnose by Check Code114
8-4.Diagnosis Flow Chart for each Check Code123
8-4-1.Hydro Unit Failure Detection123
8-4-2.Outdoor Unit Failure Detection143
Temperature Sensor, Temperature-Resistance Characteristic Table155
8-5.Operation Check by PC Board Switch156
8-5-1.Operation Check Mode156
8-6.Brief Method for Checking the Key Components157
8-6-1.Hydro Unit157
8-6-2.Outdoor Unit158
Hydro Unit and Outdoor Unit Settings160
Replacement of the Service PC Board202
How to Exchange Main Parts203
For Cooling Installation257
Periodic Inspection Items258
Part Exploded View, Part List260
Appendix284

Toshiba HWT-1102S21SM3W-E(TR) - 4-3.Hot Water Cylinder Unit

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