1.  Instruction on Advanced Operation Mode .............................................................................................................. 39 
2.  How to Set Advanced Mode Codes ......................................................................................................................... 39 
a.  Instruction for Advanced Mode ....................................................................................................................... 40 
b.  Refrigerant Recycling Operation ...................................................................................................................... 41 
c.  Snow-Blowing Function ................................................................................................................................... 41 
VII.  Troubleshooting................................................................................................................................................................ 42 
a.  0E0: Communication Fault Between ODUs ..................................................................................................... 43 
b.  0E2: Communication Error Between ODU and IDU ......................................................................................... 44 
c.  0E4: T3 or T4 Temperature Sensor Error ......................................................................................................... 45 
d.  0E5: Voltage Protection ................................................................................................................................... 46 
e.  0E8: Incorrect ODU Address ............................................................................................................................ 47 
f.  20HO 10H0: Communication Error Between Main Control Board Chip and Compressor Drive Chip ............. 47 
g.  0H1: Communication Error Between Main Control Chip and Communication Chip ....................................... 48 
h.  0H2~0H3: Incorrect Number of ODUs ............................................................................................................. 48 
i.  0H7: Incorrect Number of IDUs ....................................................................................................................... 49 
j.  0H8: High Pressure Sensor Error ...................................................................................................................... 50 
k.  0Hb: Low Pressure Sensor Error ...................................................................................................................... 51 
l.  10F1 20F1: PTC Error ....................................................................................................................................... 52 
m.  0F3~0F5: Temperature Sensor Error ................................................................................................................ 53 
n.  0F6: Electronic Expansion Valve Error ............................................................................................................. 54 
o.  10Hd 20Hd: Follower Unit Error ...................................................................................................................... 54 
p.  0P1: Current Leakage Error .............................................................................................................................. 55 
q.  0P1: Discharge Temperature Switch or High Pressure Protection ................................................................... 56 
r.  0P2 0H5: Low Pressure Protection .................................................................................................................. 57 
s.  0P3: Over Current Protection for Compressor ................................................................................................ 58 
t.  0P4 0H6: Discharge Temperature Protection .................................................................................................. 59 
u.  0P5: High Temperature Protection for Pipe Temperature ............................................................................... 60 
v.  0H9 0P9: DC Fan Protection ............................................................................................................................. 61 
w.  Suitable for the Model 38VMA***HDS5-1 ...................................................................................................... 62 
x.  Suitable for the Model 38VMA***HDS6-1 ...................................................................................................... 64 
y.  0C7 0PL: High Module Temperature Protection .............................................................................................. 66 
z.  L0~L9 10H4 / 20H4: Compressor INV Module Protection ............................................................................... 68 
Error Display: ........................................................................................................................................................... 68 
Applicable Models: .................................................................................................................................................. 68 
Error Definition: ....................................................................................................................................................... 69 
Possible Causes: ....................................................................................................................................................... 69 
AtL: Ambient Temperature Limit Operation ............................................................................................................ 76 
VIII. Appendix ........................................................................................................................................................................... 77 
1.  Wiring Diagram ........................................................................................................................................................ 77 
2.  Electronic Control Box Layout .................................................................................................................................. 81 
3.  High Pressure Sensor Voltage Characteristics** ...................................................................................................... 91 
IX.  Bill of Material (BOM) ....................................................................................................................................................... 92 
1.  38VMA072HDS5-1, 38VMA096HDS5-1, 38VMA120HDS5-1 ................................................................................... 92 
2.  38VMA144HDS5-1 ................................................................................................................................................... 97 
3.  38VMA072HDS6-1, 38VMA096HDS6-1, 38VMA120HDS6-1 ................................................................................. 103 
4.  38VMA144HDS6-1 ................................................................................................................................................. 108 
 
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