Nibe F1255 Installation Manual page 54

activating the mixing valve: Activated if mixer valve is
installed and it is to be controlled from F1255. When
the option is active, you can set the outgoing hot water
temperature, shunt amplification and shunt waiting time
for the mixer valve.
outgoing hot water: Here, you can set the temperature
at which the mixer valve is to restrict hot water from
the water heater.
MENU 5.3.11 - MODBUS
address
Factory setting: address 1
word swap
Factory setting: not activated
As from Modbus 40 version 10, the address can be set
between 1 - 247. Earlier versions have a fixed address
(address 1).
Here, you can select if you want to have "word swap"
instead of the preset standard "big endian".
See the accessory installation instructions for function
description.
MENY 5.3.12 - EXHAUST/SUPPLY AIR
MODULE
months btwn filter alarms
Setting range: 1 – 24
Default value: 3
lowest extract air temp.
Setting range: 0 – 10 °C
Default value: 5 °C
bypass at excess temperature
Setting range: 2 – 10 °C
Default value: 4 °C
bypass during heating
Setting range: on/off
Factory setting: off
cut-out value, exh. air temp.
Setting range: 5 – 30 °C
Default value: 25 °C
months btwn filter alarms: Set how often the filter alarm
is to be displayed.
lowest extract air temp.: Set the minimum extract air
temperature to prevent the heat exchanger freezing.
bypass at excess temperature: If a room sensor is in-
stalled, set the excess temperature at which the bypass
damper is to open here.
54 Chapter 8 | Control - Menus
TIP
See the installation instructions for ERS and
HTS for a function description.
MENU 5.3.15 - GBM COMMUNICATION
MODULE
start diff additional heat
Setting range: 10 – 2,000 DM
Factory setting: 400 DM
hysteresis
Setting range: 10 – 2,000 DM
Factory setting: 100 DM
Make settings for the gas boiler GBM 10-15 here. For
example . you can select when the gas boiler is to start.
See the accessory installation instructions for a descrip-
tion of function.
MENU 5.3.16 - HUMIDITY SENSOR
climate system 1 HTS
Setting range: 1–4
Default value: 1
limit RH in the room, syst.
Setting range: on/off
Factory setting: off
prevent condensation, syst.
Setting range: on/off
Factory setting: off
limit RH in the room, syst.
Setting range: on/off
Factory setting: off
Up to four humidity sensors (HTS 40) can be installed.
Here you select whether your system(s) is/are to limit
the relative humidity level (RH) during heating or cooling
operation.
You can also choose to limit min. cooling supply and
calculated cooling supply to prevent condensation on
pipes and components in the cooling system.
See the Installer Manual for HTS 40 for function descrip-
tion.
NIBE F1255