Setting Procedures; Settings Table - Mitsubishi Electric QAHV Série Manuel D'installation & D'instructions

(2) Three-sensor method or six-sensor method setting
Use the separately sold thermistor (TW-TH16E) to control the water temperature in the storage tank.

Setting procedures

Step 0
Set the ON/OFF
switch (SWS1) to
OFF.
Step 1
Set the dip switches
SW2 and SW3.
Step 2
Select the desired
item with the push
switch SWP3.
Step 3
Press the push
switches SWP1 (↑)
or SWP2 (↓) to
increase or
decrease the value.
Step 4
Press the push
switch SWP3 to
save the change.
Usage example
Operation example (Three-sensor method - when a remote controller PAR-W31MAA is used)
Operation mode: Mode 1
Mode 1 Thermo-ON thermistor selection (Item code 1500): 1
Mode 1 Thermo-OFF thermistor selection (Item code 1501): 3
* Use the separately sold TW-TH16E temperature thermistor.
Two or more units are needed to use the six-sensor method.
* Make sure to set the unit outlet hot water temperature.
Set SWS1 to OFF from the remote controller or with the local switch.
Settings cannot be changed unless the ON/OFF setting is set to OFF.
SW2
-10 5 6 7
OFF OFF OFF OFF
Item codes 1500 through 1510 relate to sensor method setting.
Press the push switch SWP3 to select an item code.
Use the push switches SWP1 and SWP2 to change the value of the selected item.
The value will keep blinking while it is being changed.

Settings table

Items that can be set
Mode 1 Thermo-ON thermistor selection
Mode 1 Thermo-OFF thermistor selection
Mode 2 Thermo-ON thermistor selection
Mode 2 Thermo-OFF thermistor selection
Mode 3 Thermo-ON thermistor selection
Mode 3 Thermo-OFF thermistor selection
Number of water control modes
Mode 1 Thermo differential value
Mode 2 Thermo differential value
Mode 3 Thermo differential value
* Only for six-sensor method
Thermistor number 1: TH15, 2: TH16, 3: TH17
* Set the item code 1507 to "3" when using all modes (Mode 1, 2, and 3).
Set the item code 1507 to "2" when using mode 1 and mode 2.
Set the item code 1507 to "1" when using mode 1.
* The temperature will be displayed in Fahrenheit or Centigrade depending on the setting for the item code 1516 (0: Fahrenheit; 1:
Centigrade).
Press SWP3 once within one minute of changing the setting with SWP1 or SWP2 to save the
setting.
Once 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.
TH15 temperature < (Set water
temperature - Mode 1 Thermo
differential value [Code: 1508])
Unit operation start
TH15
TH16
Tank
TH17
SW3
8 9 10
ON OFF OFF
Item Initial
code value
1500 3
1501 3
1502 1
1503 2
1504 1
1505 3
1507 1
1508 18
1509 18
1510 18
TH15
TH16
Tank
TH17
TH17 temperature >
Set water temperature
Unit operation stop
GB-44
Limits and increments
Unit
Increments Lower limit
- 1 1
- 1 1
- 1 1
- 1 1
- 1 1
- 1 1
- 1 1
ºF* 2 0
ºF* 2 0
ºF* 2 0
* Set the operation mode and water
temperature from the remote controller
PAR-W31MAA.
Upper limit
3 (6*)
3 (6*)
3 (6*)
3 (6*)
3 (6*)
3 (6*)
3
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54
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