Function Of Switches And Connectors (Outdoor Unit) - Mitsubishi Electric PUH-P8YE Technical & Service Manual

[3] Function of switches and connectors (outdoor unit)

(1) Function of switches
1) Function of switches
(Normal mode)
Kind of
Switch Pole
switch
1
2
SW1
3
CN33
When
4
open
(Normal)
5
DIP SW
6
1
2
SW2 3
4
5
6
Tact SW SW3
1
DIP SW SW4
2
1
2
DIP SW SW5
3
4
2) Switch functions at set mode change
Kind of
Switch Pole
switch
1
SW1 2
When 3
DIP SW CN33
4
shorted
(mode
5
switching)
6
*1 Trial run performs trail run processing by input change while stopped. (For details, see the trail run section)
*2 Mode input is entered by SW3 OFF→ON change (___ ↑ ). Press and hold down SW3 for about 2 seconds. The set
mode can be registered according to the outdoor unit setting information on page 31.
Note: After changing the mode by CN33 shorting (mode switching), return to the normal mode by opening CN33.
3) Connector function assignment
Type Connector
CN31
Connector CN32
CN33
Function
None
Abnormality history clear
Refrigerant system
address setting
Self diagnosis
Mode input register
Trial run
Trial run mode switching
None
3-phase power source
detection
Cooling only switching
Model setting
Function
None
Night mode
Defrosting end switching
Defrosting prohibit time
switching
None
Function
Emergency operation
Function test
DIP switch mode switching
Normal mode
SW3 = Unrelated
Operation by switch operation
ON
–
Clear
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
ON ON ON
OFF OFF OFF
0 1 2
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
ON ON ON
OFF OFF OFF
5 6 7
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
ON ON ON
OFF OFF OFF
10 11 12
→ Shows that Nos. 3, 4, 5 , and 6 of
1 2 3 4 5 6
ON
OFF
SW1 are ON.
15
See pages 29 to 34.
Register
Operate
Heat
–
Do not
Cooling only
PUH-P10YE
Set input mode
CN33 = short SW3 = ON*
Operation by switch operation
ON
–
Night mode
12 °C continuous 2 min-
utes
Fixed
–
Operation by open/short
short
Start
Function mode
Mode switching
–27–
OFF
–
Normal
1 2 3 4 5 6 1 2 3 4 5 6
ON ON
OFF OFF
3 4
1 2 3 4 5 6 1 2 3 4 5 6
ON ON
OFF OFF
8 9
1 2 3 4 5 6 1 2 3 4 5 6
ON ON
OFF OFF
13 14
Normal
Stop
Cool
Do
Heat pump
PUH-P8YE
2
Switch effective
OFF
–
Normal mode
8 °C continuous 2 min-
utes
Training
–
open
Normal At initialization
Normal At initialization
Normal
Switch effec-
tive timing
–
Running or
stopped
When power
turned on
Running or
stopped
stopped
1
stopped*
stopped
–
When power
turned on
When power
turned on
timing
–
stopped
stopped
stopped
–
Switch effec-
tive timing
stopped