Installer reference guide
43
EHBH/X16
Daikin Altherma - Low Temperature Split
4P313776-1 – 2012.05
8 Configuration
Room frost protection
Only applicable in case of room thermostat control. When the actual
room temperature would drop below the room frost temperature, the
unit will supply leaving water (in heating operation mode) to the heat
emitters to heat up the room again.
Shut-off valve
Only applicable in case of 2 leaving water temperature zones.
The shut-off valve, which is in the main leaving water temperature
zone, output is configurable.
Thermo On/OFF: the valve closes, depending on [F-0B] when there
is no heating and/or demand of the room in the main zone. Enable
this setting to:
Q
avoid leaving water supply to the heat emitters in the main LWT
zone (through the mixing valve station) when there is request
from the additional LWT zone.
Q
activate the On/OFF pump of the mixing valve station only when
there is demand (see application guidelines). See "5 Application
guidelines" on page 6.
Cooling: Only applicable for EHBX and EHVX. The shut off valve
closes, depending on [F-0C] when the unit is running in cooling
operation mode. Enable this setting to avoid cold leaving water
through the heat emitter and the forming of condensation (e.g. under
floor heating loops or radiators).
Operation range
Depending on the average outdoor temperature, the operation of the
unit in space heating or space cooling is prohibited.
Space heating OFF temp: When the averaged outdoor temperature
raises above this value, space heating is turned OFF to avoid
overheating.
Space cooling On temp: Only applicable for EHBX and EHVX. When
the averaged outdoor temperature drops below this value, space
ooling is turned OFF.
Automatic heating/cooling changeover
Only applicable for EHBX and EHVX. The end-user sets the
desired operation mode on the user interface: Heating, Cooling or
Automatic (see also operation manual/user reference guide). When
Automatic is selected, the changing of the operation mode is based
on:
Q
Monthly allowance for heating and/or cooling: the end-user
indicates on a monthly base which operation is allowed (# [7
:
5]):
both heating/cooling or heating only or cooling only. If the
allowed operation mode changes to cooling only, the operation
mode changes to cooling. If the allowed operation mode
changes to heating only, the operation mode changes to
heating.
Q
Averaged outdoor temperature: the operation mode will be
changed in order to always be within range determined by the
space heating OFF temperature for heating and the space
cooling On temperature for cooling. If the outdoor temperature
drops, the operation mode switches to heating and vice versa.
Note that the outdoor temperature will be time-averaged (see
"8 Configuration" on page 30).
When the outdoor temperature is between the space cooling On and
the space heating OFF temperature, the operation mode remains
unchanged unless the system is configured in room thermostat
control with one leaving water temperature zone and quick heat
emitters. In that case, the operation mode will change based on:
Q
Measured indoor temperature: besides the heating and the
cooling desired room temperature, the installer sets a hysteresis
value (e.g. when in heating, this value is related to the desired
cooling temperature) and an offset value (e.g. when in heating,
this value is related to the desired heating temperature).
Example: the desired room temperature in heating is 22°C and
in cooling 24°C, with a hysteresis value of 1°C and an offset of
4°C. Changeover from heating to cooling will occur when the
room temperature raises above the maximum of the desired
cooling temperature added by the hysteresis value (thus 25°C)
and the desired heating temperature added by the offset value
(thus 26°C). Oppositely, changeover from cooling to heating will
occur when the room temperature drops below the minimum of
the desired heating temperature subtracted by the hysteresis
value (thus 21°C) and the desired cooling temperature
subtracted by the offset value (thus 20°C).
Q
Guard timer to prevent too frequent changing from heating to
cooling and vice versa.
NOTICE
Even if the room thermostat control is OFF on the user
interface, room frost protection remains active.
#
Code
Description
N/A
[2-06]
Room frost protection
0: disabled
1: enabled (default)
N/A
[2-05]
Room antifrost temperature
4~16°C (default: 12°C)
INFORMATION
During defrost operation, the shut-off valve is always
opened.
#
Code
Description
[A.3.1.1.6.1] [F-0B]
The shut-off valve:
0 (No): is NOT influenced by heating or
cooling demand.
1 (Yes)(default): closes when there is
heating or cooling demand.
#
Code
Description
[A.3.1.1.6.2] [F-0C]
The shut-off valve:
0 (No)(default): is NOT influenced by
changing the space operation mode to
cooling.
1 (Yes): closes when the space
operation mode is cooling.
#
Code
Description
[A.3.3.1]
[4-02]
Q
EHBH/X04+08 and EHVH/X04+08:
14~25°C (default: 25°C)
Q
EHBH/X16 and EHVH/X16:
14~35°C (default: 35°C)
The same setting is also used in
automatic heating/cooling changeover.
#
Code
Description
[A.3.3.2]
[F-012]
10~35°C (default: 20°C)
The same setting is also used in
automatic heating/cooling changeover.
Содержание ERHQ011BA
Страница 83: ......
Страница 84: ...4P313776 1 2012 05 Copyright 2012 Daikin...