Toshiba MAR - M101HTM8 - E, Service Manual

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6. Fault Code and Display Information
Multi Controller Display Switch Information
ThX 15
ThD 14
ThC 13
ThB 12 Displays Sensor Readings As A Hexadecimal Code :
40=0ºC ; 68=10ºC ; 90=20ºC ; b8=30ºC
ThA 11
PMVD 10
PMVC 9
PMVB 8
Displays Degree Of PMV Opening As A Hexadecimal Code :
(OO) = Closed , (FO) = Fully Open
PMVA 7
Indicates Faulty Branch Connection After Circuit Test Displays Branch Being Tested (A b C d) cct test 6
Normal Display (OO), Restart Timer Displays (-1) During Count Down Timer 5
Operating Mode :Heating (H-), Cooling (-C), Stop (--), Defrost (J-) 4
Displays “dF” during defrost operation Defrost
Oil Ret
brchC Superheat
brchC Superheat
brchD Oil Ret
brch D Oil Ret
brchA Superheat
brchA Superheat
brchB Oil Ret
brch B 3
Level of Cooling/Heating Demand (00-1F) Demand 2
For Details of Fault Codes see Page 13 Fault
Codes
1
To
Outdoor From C
Branch To C
Branch To D
Branch From D
Branch From
Outdoor From A
Branch To A
Branch To B
Branch From B
Branch Serial 0
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LD 2 LD 1 Indicates Switch
Pos.
The Hexadecimal codes can be interpreted using the following chart
90 1F 41 OF 240 FO
87.5 1 37.9 OE 224 EO
84.4 1D 34.8 Od 208 dO
81.3 1C 31.7 OC 32 192 CO
78.2 1B 28.6 Ob 28 176 bO
75.1 1A 25.5 OA 24 160 AO
72 19 22.4 O9 20 144 9O
68.9 18 19.3 O8 16 128 8O
65.8 17 16.2 O7 12 112 7O
62.7 16 13 O6 8 96 6O
59.6 15 10 O5 4 80 5O
56.5 14 6.9 O4 0 64 4O
53.4 13 3.9 O3 -4 48 3O
50.3 12 0 O2 -8 32 2O
47.2 11 0 O1 16 1O
44.1 1O 0 OO Closed OO
Hz Display Hz Display ºC Angle
Level Of Demand Th-AbCdX PMV- Display
The above chart shows a sample of readings, other intermediate readings may be registered.
TOSHIBA
AUGUST 1997
Page 15