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Mitsubishi Electric CAHV-P500YA-HPB Service Handbook Page 82

Hot water heat pump.
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[ VII Control ]
(7) Remote water temperature setting input signal type
By setting SW2-7 to ON, external analog signals can be used to set the water temperatures.
Analog input type can be selected from the following four types:
"0": 4-20 mA
"1": 0-10 V
"2": 0-5 V
"3": 2-10 V
Select item code 21 to set the type of analog input signal to be used to set the water temperature from a remote
location.
Setting procedures
Set the dip switches on the circuit board as follows to change the settings.
Step 1
Set dip switches SW2, SW3,
SW421-1, and SW421-2.
4-20 mA
0-10 V
1-5 V
2-10 V
Switch settings
Step 2
Select the item to be set with
push switch SWP3.
Select the type of analog input signal to be used to set the water temperature from a remote location.
Step 3
Change the values with push
switches SWP1 (↑) or SWP2 (↓).
Press push switch SWP3 to select the item code.
Change the values with push switches SWP1 and SWP2.
Until the changed values are saved, the values will blink.
Items that can be set
Water temperature
setting input signal type
Step 4
Press push switch SWP3 to save
the changed value.
Press SWP3 once within one minute of changing the settings to save the change.
When the new setting is saved, the display will stop blinking and stay lit. The display will, then, return to the item code
display mode.
If SWP3 is not pressed within one minute, the change will not be saved, and the display will return to the item code
display mode.
HWE10060
SW421-1
SW421-2
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
S
W
2
-10
5
OFF
OFF
Item
Initial
Unit
code
value
21
0
S
W
3
6
7
OFF
OFF
Setting
Incre-
Lower
Upper
ments
limit
limit
1
0
3
- 75 -
8
9
OFF
ON
OFF
Setting change from
Note
an optional remote
controller
Not possible
10
GB

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