21
CONTROLS
9
9-1. Main remote controller
F1
F2
F3
F4
B
C
D
E
A
Main screen
<Main remote controller parts>
Letter Name
Function
A
Screen
Screen in which all information is displayed
B
Menu
Access to system settings for initial set up and
modifications.
C
Back
Return to previous menu.
D
Confirm
Used to select or save. (Enter key)
E
Power/Holiday If system is switched OFF, pressing once will turn
system ON. Pressing again when system is switched
ON will enable Holiday Mode. Holding the button
down for 3 seconds will turn the system OFF. (
*1
)
F1–4 Function keys Used to scroll through menu and adjust settings.
Function is determined by the menu screen visible
on screen A.
*1 When the system is switched OFF or the power supply is discon-
nected, the hydrobox protection functions (e.g. freeze stat. function)
will NOT operate. Please beware that without these safety functions
enabled the hydrobox may potentially become exposed to damage.
<Main screen icons>
Icon
Description
1
Legionella
prevention
When this icon is displayed ‘Legionella prevention
mode’ is active.
2
Heat pump
‘Heat pump’ is running.
Defrosting
Emergency heating
3
Electric heater
When this icon is displayed the ‘Electric heaters’
(booster or immersion heater) are in use.
4
Target
temperature
Target flow temperature
Target room temperature
Compensation curve
5
OPTION
Pressing the function button below this icon will
display the option screen.
6
+
Increase desired temperature.
7
−
Decrease desired temperature.
8
Z1
Z2
Pressing the function button below this icon
switches between Zone1 and Zone2.
Information
Pressing the function button below this icon displays
the information screen.
9
Space heat-
ing/cooling
mode
Heating mode
Zone1 or Zone2
Cooling mode
Zone1 or Zone2
10 DHW mode
Normal or ECO mode
11 Holiday mode
When this icon is displayed ‘Holiday mode’ activated.
12
Timer
Prohibited
Server control
Stand-by
Stand-by (*
2
)
Stop
Operating
13
Current
temperature
Current room temperature
Current water temperature of DHW tank
14
The Menu button is locked or the switching of the
operation modes between DHW and Heating opera
-
tions are disabled in the Option screen.(
*3
)
15
SD memory card is inserted. Normal operation
SD memory card is inserted. Abnormal operation
*2 This unit is in Stand-by whilst other indoor unit(s) is in operation by
priority.
*3 To lock or unlock the Menu, press the BACK and CONFIRM keys
simultaneously for 3 seconds.
12
11
1
3
2
10
9
4
7
6
5
15 14
13
8
OCH590B
