44
Selected
Running
Error
indication
Manual operation menu screen
The service menu provides functions for use by installer or service engineer. It is NOT intended the home owner alters settings within this menu. It is for this reason
password protection is required to prevent unauthorised access to the service settings.
Follow the procedure described in General Operation for the set up operation.
<[Manual operation]>
valve can be manually overridden using manual operation mode.
When manual operation is selected a small timer icon appears in the screen.
When selected, this function will only remain in manual operation for a maximum
of 2 hours. This is to prevent accidental permanent override of the FTC.
Pressing F3 button will switch manual operation mode ON for the main 3-way
menu again and press F3 to deactivate manual operation of the part. Alternatively
after 2 hours manual operation mode will no longer be active and FTC can
resume control of the cylinder unit.
the settings whilst the unit is running the main remote controller will display a reminder message prompting the installer to stop operation before continuing. By selecting
“Yes” the unit will cease operation.
Manual operation and heat source setting can not be selected if the system
is running. A screen will be displayed asking the installer to stop the system
before these modes can be activated.
The system automatically stops 2 hours after last operation.
[Service] Menu
Freeze stat function
Menu subtitle
Function/ Description
Freeze stat function *1
An operational function to prevent the water circuit from freezing when outdoor ambient temperature drops.
Flow t.
The target outlet water temperature at water circuit when operating in Freeze stat function. *2
Outdoor ambient temp. Minimum outdoor ambient temperature which freeze stat function will begin to operate,
(3 - 20ºC
Simultaneous Operation
For periods of very low outside temperature this mode can be used. Simultaneous
operation allows both DHW and space heating to run together by using the heat pump
and/or booster heater to provide space heating whilst only the immersion heater
provides heating for DHW. This operation is only available if BOTH a DHW tank AND
immersion heater are present on the system.
<Operation settings>
Heating operation
adaptation mode.
Menu subtitle
Function
Range
Unit
Default
Flow temp. range
Minimum temp.
To minimize the loss by frequent ON and OFF in mild outdoor ambient tem-
perature seasons.
20 - 45
ºC
30
Maximum temp.
35 - 60
ºC
50
Room temp. control
Mode
Setting for Room temp. control
At Fast mode, target outlet water temperature is set higher than the one set
at normal mode. This reduces the time to reach the target room temperature
when the room temperature is relatively low.*
Normal/
Fast
—
Normal
Interval
10 - 60
min
10
To minimize the loss by frequent ON and OFF in mild outdoor ambient tem-
perature seasons.
—
On
Lower limit
Prohibits heat pump operation until the flow temperature drops below the
ºC
Upper limit
+3 - +5
ºC
+5
Heating operation (Room temp. control table)
Note:
• Range of outdoor ambient temperature at which simultaneous operation
• System shall automatically return to routine operation. This will happen when
the outdoor ambient temperature rises above the selected temperature for
Refer to Page 33.
Summary of Contents for EHPT15X-UKHDW1S
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