Post Adjustment And Venting - Nibe F1255PC BE Installer Manual

OPERATION IN THE START GUIDE
A. B.
Page Name and menu number
If the start guide is left on this page it closes
automatically in
60 min
C.
Option / setting
Page
A.
Here you can see how far you have come in the start
guide.
Scroll between the pages of the start guide as follows:
1. Turn the control knob until one of the arrows in the
top left corner (at the page number) has been
marked.
Press the OK button to skip between the pages in
2.
the start guide.
Name and menu number
B.
Read what menu in the control system this page of the
start guide is based on. The digits in brackets refer to
the menu number in the control system.
If you want to read more about affected menus either
consult the help menu or read the user manual.
Option / setting
C.
Make settings for the system here.
Help menu
D.
In many menus there is a symbol that indicates
that extra help is available.
To access the help text:
Use the control knob to select the help symbol.
1.
2. Press the OK button.
The help text often consists of several windows that
you can scroll between using the control knob.
32 Chapter 6 | Commissioning and adjusting
language 4.6
Post adjustment and
venting
PUMP ADJUSTMENT, AUTOMATIC
OPERATION
Brine side
The brine pump must run at the correct speed for the
correct flow in the brine system. F1255PC BE has a
brine pump that can be automatically controlled in
standard mode. Certain functions and accessories may
require that they are run manually and the correct speed
must then be set, see section
manual operation.
The automatic control occurs when the compressor is
running and it sets the speed of the brine pump to obtain
the optimal temperature difference between the supply
and return lines. For passive cooling operation, for ex-
ample, the brine pump must run at a set speed, which
is set in menu 5.1.9
Heating medium side
To set the correct flow in the heating medium system,
the heating medium pump must run at the correct
speed. F1255PC BE has a heating medium pump that
can be automatically controlled in standard mode. Cer-
tain functions and accessories may require it to run
manually and the correct speed must then be set.
This automatic control occurs when the compressor is
running and sets the speed of the heating medium
pump, for the present operating mode, to obtain the
optimal temperature difference between the supply and
return lines. During heating operation, the set DOT (di-
mensioned outdoor temperature) and temperature dif-
ferential in menu 5.1.14 are used. If necessary, the
maximum speed of the circulation pump can be limited
in menu 5.1.11.
PUMP ADJUSTMENT, MANUAL OPERATION
Brine side
F1255PC BE has a brine pump that is automatically
controlled. If a manual speed is required, open menu
5.1.9 (see page 44) and deactivate "auto" and set the
pump's speed according to the diagram below.
Caution
When passive cooling is used, the brine pump
speed must be set in menu 5.1.9.
Pump adjustment,
NIBE F1255PC BE