Control Computer; Function Description - Danfoss DHP-H Installation And Service Instructions Manual

12 Control computer
12 .1 Function description
A control computer is used to automatically calculate the heat demand in the house where the heat pump is installed and to ensure that
the correct amount of heat is produced and emitted where necessary. There are many different values (parameters) that must be referred
to during the calculation of the heat demand. During installation use the control computer to set and change certain values that have to
be adapted according to the house demand. The control computer is also used during service to view alarms and history, and to check the
value settings. The display window, keypad and an indicator are on the front of the control computer. It consists of a simple menu system
that is used to navigate the desired settings and values.
Use the four control buttons on the keypad to navigate the menus and increase or reduce the set values:
• An up button with a plus sign
• A down button with a minus sign
• A right button with a right arrow
• A left button with a left arrow
The display always shows the set ROOM value and the status of the heat pump.
There are two main menus that are used to affect the heat pump settings. The menus are designed for two categories of user, end custom-
ers and installers, who make different settings in the control computer. For this reason the service menu is hidden from end customers.
The main menu, INFORMATION, is opened by pressing the left or right buttons. From the INFORMATION menu you can open the sub menus
to make settings for the heat pump.
For installation or service, the hidden menu, SERVICE, is used. This is opened by holding the left and right buttons depressed for three sec-
onds. From the service menu you can open sub menus to make advanced settings.
4
ROOM 20°C
NO DEMAND HEAT
OPERAT. AUTO
Figure 59: Display, control buttons and indicator for the heat pump .
INFORMATION
Figure 60: The menus are reached via different button presses .
The symbols in the display are
only examples. Certain sym-
bols cannot be displayed at
the same time.
3s
VMBMA102
SERVICE