Mitsubishi Electric CAHV-R450YA-HPB Installation & Operation Manual page 42

Step 2
Select the item to be set with
push switch SWP3.
Step 3
Change the values with push
switches SWP1 (↑) or SWP2 (↓).
Select item code 1057 and 1058 to set the operation temperature (TWL1 and TAL1) for the booster heater 1.
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
Booster heater 1
operation water
temperature (TWL1)
Booster heater 1
operation outside
temperature (TAL1)
Press and hold push switches SWP1 and SWP2 to fast forward the numbers.
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.
Item Initial
Unit
code value
1057 40
°C
1058 -10
Setting
Increm- Lower Upper
ents limit limit
0.1 0 70
0.1 -30 50
42
Setting change from
an optional remote
controller
Not possible