Daikin CHYHBH05AA Installer's Reference Manual page 57

In case of...
Two leaving water temperature
zones
Shut-off valve
The following is 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.
INFORMATION
During defrost operation, the shut-off valve is ALWAYS
opened.
Thermo On/OFF: the valve closes, depending on [F-0B] when there
is no heating demand from the main zone. Enable this setting to:
▪ 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.
▪ activate the On/OFF pump of the mixing valve station ONLY when
there is demand.
# Code
[A.3.1.1.6.1] [F-0B] The shut-off valve:
▪ 0 (No)(default): is NOT influenced by
heating demand.
▪ 1 (Yes): closes when there is NO
heating demand.
INFORMATION
The setting [F‑0B] is only valid when there is a thermostat
or external room thermostat request setting (NOT in case
of leaving water temperature setting).
Operation range
Depending on the average outdoor temperature, the operation of the
unit in space heating is prohibited.
Space heating OFF temp: When the averaged outdoor temperature
raises above this value, space heating is turned OFF to avoid
overheating.
CHYHBH05+08AA + EHYKOMB33A
Daikin hybrid for multi heat pump – heat pump module
4P471761-1A – 2017.10
...then the following applies:
▪ When the leaving water
temperature home page is
OFF, and the outdoor ambient
temperature drops below 4°C,
then the unit will supply
leaving water to the heat
emitters to heat up the room
again, and the leaving water
temperature setpoint will be
lowered.
▪ When the leaving water
temperature home page is ON,
the operation mode
"heating", and the outdoor
ambient temperature drops
below 4°C, then the unit will
supply leaving water to the
heat emitters to heat up the
room again, and the leaving
water temperature setpoint will
be lowered.
Description
# Code
[A.3.3.1] [4-02]
is
Domestic hot water control: advanced
Preset tank temperatures
Only applicable when domestic hot water preparation is scheduled
or scheduled + reheat.
You can define preset tank temperatures:
▪ storage economic
▪ storage comfort
▪ reheat
▪ reheat hysteresis
Preset values make it easy to use the same value in the schedule. If
you later want to change the value, you only have to do it in 1 place
(see also operation manual and/or user reference guide).
Storage comfort
When programming the schedule, you can make use of the tank
temperatures set as preset values. The tank will then heat up until
these setpoint temperatures have been reached. Additionally, a
storage stop can be programmed. This feature puts a stop to tank
heating even if the setpoint has NOT been reached. Only program a
storage stop when tank heating is absolutely undesirable.
# Code
[7.4.3.1] [6-0A]
Storage eco
The storage economic temperature denotes the lower desired tank
temperature. It is the desired temperature when a storage economic
action is scheduled (preferably during day).
# Code
[7.4.3.2] [6-0B]
Reheat
The desired reheat tank temperature is used:
▪ in reheat mode of scheduled + reheat mode: The guaranteed
minimum tank temperature is set by T
[6‑0C] or the weather dependent setpoint, minus the reheat
hysteresis. If the tank temperature drops below this value, the tank
is heated up.
8 Configuration
Description
14°C~35°C (default: 25°C)
Depending on [1‑0A], the actual outdoor
temperature will be averaged over the
selected time period. Refer to "System
settings" on page 60.
▪ [4‑02]>25°C: heat pump
prohibited when the
temperature reaches [4‑02].
temperature can be different from the
outdoor average temperature.
▪ [4‑02]<25°C and [1‑0A]≠0: heat pump
will be prohibited when the outdoor
temperature reaches [4‑02].
temperature can be different from the
actual outdoor temperature.
▪ [4‑02]<25°C and [1‑0A]=0: heat pump
will be prohibited when the outdoor
temperature reaches [4‑02]. There will
be no average of the
temperature.
When the above cases occur, then the
outdoor unit will still be able to operate
for DX units.
Description
30°C~[6‑0E]°C (default: 60°C)
Description
30°C~min(50, [6‑0E])°C (default: 50°C)
–[6‑08], which is either
HP OFF
Installer reference guide
will be
outdoor
This
This
outdoor
57