Toshiba HWT-602S21SM3W-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

1
Contents
1 Specications ............................................................................................................. 18
2 Construction views (External views) ........................................................................ 23
2-1.Hydro unit ........................................................................................................................................ 23
2-2.Outdoor unit ..................................................................................................................................... 24
3 Refrigeration cycle / Water system diagram ............................................................ 26
󰀬 ..................................................................................................................... 26
󰀬................................................................................................. 28
4 Wiring diagram............................................................................................................ 29
4-1.Hydro unit ........................................................................................................................................ 29
4-2.Outdoor unit ..................................................................................................................................... 31
 ..................................................................................................................... 35
5 Key electric component rating .................................................................................. 36
5-1.Hydro unit ........................................................................................................................................ 36
5-2.Outdoor unit ..................................................................................................................................... 42
 ..................................................................................................................... 43
................................................................................................. 44
...................................................................................................................... 47
6 Refrigerant (R32)......................................................................................................... 53
󰀬................................................................................................. 53
󰀬........................................................................................................... 54
......................................................................................... 54
............................................................................................ 55
 ................................................................................................................................................ 56
 .................................................................................................................... 56
 ................................................................................................................. 57
 ............................................................................................................................... 58
 ........................................................................................................... 58
..................................................................................................................................... 59
 ............................................................................................................................... 59
󰀬................................................................................ 60
󰀬 ..............................................................60
󰀬󰀬 .......................................................................... 60
󰀬............................................................ 61
 ................................................................................................................... 61
󰀬...................................................................................................... 61
󰀬.......................................................................................................62
 ........................................................................................................ 62

2
 ........................................................................................................ 62
 ............................................................................................................ 62
........................................................................................... 62
...................................................................... 62
 ...................................................................... 63
 ............................................................................................................................ 63
 ............................................................................................................... 63
 ............................................................................................................................. 63
7 Operational description ............................................................................................. 64
8 Method of failure diagnosis ..................................................................................... 110
󰀬 ........................................................................................................... 111
........................................................................................ 111

 ..................................................................... 111
󰀬 ............................................................... 111
 ........................ 111
..............................................................................................112
 ...........................................................................................112
......................................112
.......................................................112
........................................................................................113
 ..................................................................................... 122
............................................................................................... 122
 ........................................................................................... 142
󰀬󰀬 .................................... 154
............................................................................................. 155
 ..................................................................................................... 155
............................................................................. 156
8-6-1.Hydro unit ......................................................................................................................... 156
8-6-2.Outdoor unit...................................................................................................................... 157
9 Hydro unit and outdoor unit settings ..................................................................... 159
10 Replacement of the service PC board .................................................................. 201
11 How to exchange main parts ................................................................................. 202
12 For cooling installation .......................................................................................... 256
13 Periodic inspection items ...................................................................................... 257
14 Part exploded view, part list .................................................................................. 259
15 Appendix ................................................................................................................. 283

3
Generic denomination: Air to Water Heat Pump
Definition of qualified installer or qualified service person





Agent Qualifications and knowledge which the agent must have


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
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



• 





• 






• 




4
Definition of protective gear






Work undertaken Protective gear worn
 

 





 
 

5





[Explanation of indications]
Indication Explanation
DANGER 

WARNING 


CAUTION 



[Explanation of illustrated marks]
Mark Explanation








6
Warning indications on the Air to Water Heat Pump
[Confirmation of warning label on the main unit]


WARNING










Warning indication Description
WARNING



WARNING



CAUTION


CAUTION


CAUTION



WARNING
ELECTRICAL SHOCK HAZARD













WARNING
CAUTION
CAUTION
CAUTION
BURST HAZARD

7
Precaution for safety


DANGER


















8
WARNING








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



















9
WARNING



                



















or a fire.













No fire












10
WARNING




where is easy to see.
































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side.












11
WARNING














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



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







12
WARNING



























CAUTION







13
Explanations given to user
• 


Relocation
• 


• 




Note: 

14
Refrigerant R32

(1) Safety caution concerned to refrigerant R32




(2) Safety and cautions on installation / service
<Safety items>




 


 
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






2 


15
















<Caution items>
 T

 

 
 

 


 
 


16
(3) Pipe materials



 
<Piping>





<Flare nut>



Nominal diameter Outer diameter (mm) Thickness (mm)
R410A or R32



 6.4 0.80
 12.7 0.80
 15.9 1.00
 




17
(4) Tools
  
No.
Installation / service tools Use Applicability to R32 Air to
Water Heat Pump or not
Applicability to R22 Air to
Water Heat Pump or not
Tools / Equipment specification
1  
2
 




3 
nut
4
Port size





Note 2
5 
6  Note 3



7  Note 4



8


 
9  Note 5 Note 5
10   Note 6
11  
R32

 Note 7
12  
 Note 8 

Note 1

Note 2

Note 3
Note 4


Note 5
Note 6

Note 7

Note 8

▼General tools

 
 
 
 


 
 

18
1 Specifications
 Hydro unit 


Outdoor unit HWT-401HW-E HWT-601HW-E
 4.0 6.0
 4.0 5.0
 10 - 80 Hz 10 - 100 Hz
 
    
   4.08 5.38 5.78 7.11
 0.77 1.15 1.25 1.52
 82 93 94 93
① 40 40 40 40
 65 62 65 62
 5.20 3.45 4.80 3.30
Hydro unit   1700
 595
 670
 122
 White


 120
 120
 16
  
 11.6 11.5 17.3 14.3
 
 
  210
 65
 10
Outdoor unit   630
 800
 300
 42
 
  1100
 
 
 3 33.6 36.4 33.6 36.4
 43
  
Hydro unit Liquid Ø6.4
Gas Ø12.7
Outdoor unit Liquid Ø6.4
Gas Ø12.7
 30
 20
 ±30
 5
  R32
 0.9
  
 
 ±7
 250
  
 
  15-85
 15-100
  
 








①




19
 Hydro unit 



Outdoor unit  
 8.0 11.0
 6.0 8.0
 10 - 90 Hz 10 - 100 Hz
 
    
   7.05 8.51 10.60 12.82
 1.54 1.88 2.39 2.86
 95 96 98 97
① 40 40 40 40
 65 63 65 64
 5.19 3.20 4.60 2.80
Hydro unit   1700
 595
 670
 122
 White


 120
 120
 16
  
 23.0 16.7 32.1 22.7
 
 
  210
 65
 10
Outdoor unit   1050
 1010
 370
 75
 
  2000
 
 
 3 52.4 52.4 58.4 52.4
60
  
Hydro unit Liquid Ø6.4
Gas Ø15.9
Outdoor unit Liquid Ø6.4
Gas Ø15.9
 30
 8
 ±30
 5
  R32
 1.25
  
 
 ±7
 250
  
 
  15-85
 15-100
  
 








①


