Auto Operation - Toshiba HWS-802XWHM3-E Service Manual

Item
8-2.

11) AUTO operation

An auto operation sets the water temperature TSC_F depending on the outside temperature TO by following the table
Operation
below.
Mode and
Control Method
1) How to operate
• Pressing the remote controller [ZONE1, 2] button and then the [AUTO] button starts AUTO operation for heating. An
operation starts at the set temperature of straight -line approximation for the following: water temperature 40°C with
the outside temperature -20°C (FC), 35°C with -10 °C (T1)(FC), 30°C with 0°C (FC), 25°C with 10°C (T3), and 20°C
with 20°C (TC).
• For 2-temperature control, although Auto-Curve in ZONE2 shows 80% of that of ZONE1 (FC), the water temperature
setting does not fall below 20°C.
• During an AUTO operation, pressing again the [AUTO] button returns to the usual manual set heating operation.
• The remote controller displays "A" as the temperature during an AUTO operation.
(When 2-temperature control is enabled, the remote controller displays "A" "A".)
• Long-pressing the [AUTO] button during an AUTO operation activates the Auto-Curve FC change mode, enabling
the set Auto-Curve water temperature to be changed in the ±5K range. (FC_27)
• Even if the temperature setting is changed during an AUTO operation, the operation continues.
• An AUTO operation works with a heating operation only, not with a cooling or a hot water supply operation.
40(A)
35(B)
30(C)
25(D)
20(E)
Related FC
FC No.
27
29
2B
2C
2D
2E
2F
30
31
Operation flow and applicable data, etc.
Auto-Curve
ZONE1
Auto-Curve
ZONE2
-20 -10
(T1)
Setting item
Set temperature shift with heating set to Auto
Outside air temperature T1 temperature
Outside air temperature T3 temperature
Set temperature when out side air temperature is -20 °C.
Set temperature when out side air temperature is -10 °C (T1).
Set temperature when out side air temperature is 0 °C.
Set temperature when out side air temperature is 10 °C (T3).
Set temperature when out side air temperature is 20 °C.
Auto-Curve ratio of
ZONE2
0 10 20
(T3)
Default
0
-10°C
10°C
40°C
35°C
30°C
25°C
20°C
80%
46
Setting available range
-5 to 5 k
-15-0°C
0-15°C
20-55°C
20-55°C
20-55°C
20-55°C
20-55°C
0-100%