Daikin EKHBRD-ACY1 Installation Manual page 31

Remote controller room temperature control
When the reheat temperature is reached, the further heat up till
storage temperature of the domestic hot water tank will be decided by
the remote controller room thermostat in order to prevent the room
temperature to drop too much.
1 Reheat operation
When requesting space heating and domestic water heating
(reheat) at the same time, the domestic water will be heated till
maximum reheat temperature, then space heating will start
again.
K
E
D
J
C
H
B
A
A Operation
Space heating
Domestic water heating
B Domestic hot water reheat thermo-on request
C Domestic hot water tank temperature
D Room temperature thermo-on request
E Remote controller room temperature
F Domestic hot water lower limit temperature
G Domestic hot water upper limit temperature
(maximum possible storage temperature) [b-03]
H Domestic hot water reheat minimum temperature [b-00]
J Domestic hot water reheat maximum temperature [b-01]
K Remote controller thermostat set point
ON ON
OFF OFF
EKHBRD011~016ABV1+Y1 + EKHBRD011~016ACV1+Y1
Indoor unit for air to water heat pump system
4PW60970-1D – 05.2011
2 Storage operation
When requesting space heating and domestic water heating
(storage) at the same time, domestic water will be heated, but as
soon as the room temperature drops 3°C from set point, space
heating will start till 0.5°C above set point, then domestic water
will be heated again till storage set point.
K
E
+0.5°C
D
–0.5°C
–3.0°C
C
J
ON
H
OFF
G
75°C
B
A
F 35°C
ON
OFF
1
6
2
5
A Operation
Space heating
Domestic water heating
B Domestic hot water storage thermo-on request
C Domestic hot water tank temperature
D Room temperature thermo-on request
E Remote controller room temperature
F Domestic hot water lower limit temperature
G Domestic hot water upper limit temperature
(maximum possible storage temperature) [b-03]
H Domestic hot water reheat minimum temperature [b-00]
J Domestic hot water reheat maximum temperature [b-01]
K Remote controller thermostat set point
ON ON
OFF OFF
1 Minimum operation time for domestic water heating
(initial 10 minutes [d-00])
2 Maximum operation time for domestic water heating
(initial 30 minutes [d-01])
3 Interval minimum stop time for domestic water heating
(initial 15 minutes [d-02])
4 No simultaneous operation
5 Timers for domestic water heating start
6 Timer for space heating start
(a) The minimum operation time is only valid when room temperature is more
than 3°C lower as set point and set point J is reached.
(b) The maximum operation time is only valid when room temperature is more
than 0.5°C lower as set point and set point J is reached.
+0.5°C
–0.5°C
–3.0°C
ON
OFF
G
75°C
F 35°C
ON
OFF
4
3
(a)
(b)
Installation manual
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