6
4
Switch the outside air temperature or water temperature setting by pressing the [
ON/OFF]
D
button.
5
To set the water temperature, outside air temperature, or offset amount, press the [
TEMP. (
) or (
)]
F
(setting temperature) button.
The adjustment range is as shown below.
*1 The adjustment range differs depending on the model of the unit to connect.
6
To cancel the water temperature initial setting, press the [INITIAL SETTING (
)]
J
button for three seconds or longer.
Alternatively, press the [
ON/OFF]
I
button.
(2) Interface (I/F) Option Setting mode
1
Stop the unit by pressing the [
ON/OFF]
I
button.
2
To enter the interface (I/F) option setting, press the [INITIAL SETTING (
)]
K
button for three seconds or longer. (1. or 2. will be displayed.)
*
Depending on the model of the unit to connect, the “Interface (I/F) Option Setting mode” may not be available. In such case, the screen transitions
to the unit stop screen after the display of the error.
3
To select an interface (I/F) option setting 1. or 2., press the [Mode (Back)]
E
button.
*
The available settings differ depending on the model of the unit to connect.
4
To switch the upper/lower limit value display, press the [
ON/OFF]
D
button.
5
To set the upper/lower limit value, press the [
TEMP. (
) or (
)]
F
(setting temperature) button.
•
The adjustment range for both the upper and lower limit values is -20°C (-4°F) to 90°C (194°F).
6
To cancel the interface (I/F) option setting, press the [INITIAL SETTING (
)]
K
button for three seconds or longer.
Alternatively, press the [
ON/OFF]
I
button.
Water Temp Hot Water (Heating, Heating ECO) :
20°C ~ 90°C ( 68°F ~ 194°F) *1
Water Temp Anti-freeze
:
5°C ~ 45°C ( 41°F ~ 113°F) *1
Water Temp Cooling
:
5°C ~ 30°C ( 41°F ~
87°F) *1
Outside air temperature
: –20°C ~ 40°C ( –4°F ~ 104°F)
Temp Offset Heating (Cooling)
: –15°C ~ 15°C ( 5°F ~ 59°F)
A
Heating system
Lower limit value setting: Defines the “4 mA/0 V” input as the “water temperature
1
°C” of the Heating, Hot Water, and Anti-
freeze modes.
Upper limit value setting: Defines the “20 mA/10 V” input as the “water temperature
2
°C” of the Heating, Hot Water, and
Anti-freeze modes.
B
Cooling system
Lower limit value setting: Defines the “4 mA/0 V” input as the “water temperature
3
°C” of the of the Cooling mode.
Upper limit value setting: Defines the “20 mA/10 V” input as the “water temperature
4
°C” of the Cooling mode.
1. Interface (I/F) option setting
Heating system
1
Lower limit
value
display
2
Upper limit
value
display
2. Interface (I/F) option setting
Cooling system
3
Lower limit
value
display
4
Upper limit
value
display
1. Water Temp Heating
: Sets the water temperature to
1
°C when starting operation in Heating mode.
2. Water Temp Heating ECO No.1 : Sets the water temperature to
2
°C for an outside air temperature of
3
°C when operating in Heating ECO mode.
3. Water Temp Heating ECO No.2 : Sets the water temperature to
4
°C for an outside air temperature of
5
°C when operating in Heating ECO mode.
4. Water Temp Hot Water
: Sets the water temperature to
6
°C when starting operation in Hot Water mode.
5. Water Temp Anti-freeze
: Sets the water temperature to
7
°C when starting operation in Anti-freeze mode.
6. Water Temp Cooling
: Sets the water temperature to
8
°C when starting operation in Cooling mode.
7. Temp Offset Heating
: Sets the offset amount of the Heating system to
9
°C.
8. Temp Offset Cooling
: Sets the offset amount of the Cooling system to
0
°C.
The upper and lower limit values for the “water temperature switching by analog input (4-20 mA/0-10 V)”
used by the interface (I/F) can be set. Change the setting when needed.