Service Functions - Mitsubishi Electric SUZ-SWM30VA TH Series Service Manual

SERVICE FUNCTIONS

9
9-1. CHANGE IN DEFROST SETTING
Changing defrost finish temperature
<JS> To change the defrost finish temperature, cut/solder the JS wire of the outdoor inverter P.C. board.
(Refer to 10-6)
Jumper wire
Soldered (Initial setting)
JS
None (Cut)
9-2. CHANGE OF BREAKER SIZE SETTING
SUZ-SHWM60VAH/SUZ-SHWM60VAH-SC/SUZ-SWM80VA2/SUZ-SWM80VAH2/
SUZ-SWM100VA/SUZ-SWM100VAH
<JG> To use the 16A breaker, cut the JG wire of the outdoor inverter P.C. board. (Refer to 10-6)
Jumper wire
Soldered (Initial setting)
JG
None (Cut)
NOTE: When the inverter P.C. board is replaced, check the jumper wires, and cut/solder them if necessary.
9-3. OUTDOOR UNIT OPERATION MONITOR FUNCTION
9-3-1. Request code list for SUZ
By using request codes function of indoor unit controller, it is possible to check operating status of outdoor unit.
Refer to indoor unit service manual for how to use the controllers and request codes for indoor unit.
Request
Request content
code
Operation state
0
1 Compressor-Ooerating current (rms)
2 Compressor-Accumulated operating time
3 Compressor-Number of operation times
4 Discharge temperature (RT62)
5 Outdoor unit -Liquid pipe temperature (RT61)
6
7
8
9 Outdoor unit -Outside air temperature (RT65)
10 Outdoor unit -Heat sink pipe temperature (RT64)
11
12 Discharge superheat (Shd)
13 Sub-cool (SC)
Condensing temperature
14
15
16 Compressor-Operating frequency
17 Compressor-Target operating frequency
18
19 Outdoor unit-Fan speed
OCH796A
Defrost finish temperature (°C)
SUZ-SWM30VA
SUZ-SHWM30VAH
SUZ-SWM40VA2
SUZ-SWM40VA2-SC
SUZ-SHWM40VAH
SUZ-SHWM40VAH-SC
SUZ-SWM60VA2
SUZ-SWM60VA2-SC
8
13
Breaker size (A)
SUZ-SWM30VA
SUZ-SHWM30VAH
SUZ-SWM40VA2
SUZ-SWM40VA2-SC
SUZ-SHWM40VAH
SUZ-SHWM40VAH-SC
SUZ-SWM60VA2
SUZ-SWM60VA2-SC
16
16
"Description
(Display range)"
Refer to "Detail Contents in
Request Code"
0–50
0–9999
0–9999
-20–217
-40–90
-40–90
-40–200
0–255
0–130
-39-88
0–255
0–255
0–1500
21
SUZ-SHWM60VAH
SUZ-SHWM60VAH-SC
SUZ-SWM80VA2
SUZ-SWM80VAH2
SUZ-SWM100VA
SUZ-SWM100VAH
10
18
SUZ-SHWM60VAH
SUZ-SHWM60VAH-SC
SUZ-SWM80VA2
SUZ-SWM80VAH2
SUZ-SWM100VA
SUZ-SWM100VAH
20
16
Unit
-
A
10 hours
100 times
°C
°C
°C
°C
°C
°C
Heating: Pressure sensor temperature
°C
Cooling: Outdoor unit -HEX pipe
temperature
Hz
Hz
rpm
Remarks