Mitsubishi Electric ecodan PUHZ-W50VHA2, Service Manual

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Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed.
Refer to indoor unit service manual for how to use the controllers and request codes for indoor unit.
Request code
Request content
Description
(Display range)
Unit Remarks
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
Operation state
Compressor-Operating current (rms)
Compressor-Accumulated operating time
Compressor-Number of operation times
Discharge temperature (TH4)
Outdoor unit -Liquid pipe 1 temperature (TH3)
Water inlet temperature (TH32)
Outdoor unit-Plate HEX pipe temperature (TH6)
Outdoor unit-Outside air temperature (TH7)
Outdoor unit-Heat sink temperature (TH8)
Discharge superheat (SHd)
Sub-cool (SC)
Compressor-Operating frequency
Compressor-Target operating frequency
Outdoor unit-Fan output step
Outdoor unit-Fan 1 speed
(Only for air conditioners with DC fan motor)
Outdoor unit-Fan 2 speed
(Only for air conditioners with DC fan motor)
LEV (A) opening
LEV (B) opening
Primary current
DC bus voltage
Thermostat ON operating time
Refer to 8-9-1. Detail Contents in Request Code.
0–50
0–9999
0–9999
3–217
− 40–90
− 40–101
− 39–88
− 39–88
− 40–200
0–255
0–130
0–255
0–255
0–10
0–9999
0–9999
0–500
0–500
0–50
0–999
180–370
–
A
10 hours
100 times
:
:
:
:
:
:
:
:
Hz
Hz
Step
rpm
rpm
Pulses
Pulses
A
V
Minutes
"0" is displayed if the air conditioner is a single-fan
type.
:
Condensing temperature (T
63HS
) − 39–88
:
Requested capacity step (Q STEP) 0–7 Step
Pulses
8-9. Request code list
OCH605A