Installation manual
41
RKHBRD011~Y1
Indoor unit for air to water heat pump system
4PW61218-1C – 2012.06
Simultaneous demand of space heating and domestic water heating
Simultaneous
request space
heating and
domestic water
heating?
No
Normal operation
space heating or
domestic water
heating
Yes (1)
Domestic hot water
production will start
Domestic hot water
temperature reached
A=minimum ([b-01];
55°C)?
No
Domestic hot water
production will
continue without time
limit till A is reached.
Yes
Leaving water
control?
Yes
No
Storage setpoint [b-03]
reached? (*)
No
Timer [d-01] (30
minutes) passed
since? (1)
No
Operation will
continue in
domestic hot water
External room
thermostat control?
Yes
Yes
Yes (2)
No
Operation will switch to
space heating
Operation will
switch to space
heating
Timer [d-02] (15
minutes) passed
since? (2)
No
Space heating
operation will
continue till timer
finished
Yes
Remote controller room
thermostat control.
Storage setpoint [b-03]
reached? (*)
No
Room
temperature
<T
set
–3°C?
No
Timer [d-01] (30
minutes) passed
since? (1)
Yes (2)
Yes
Yes
No
Yes
Operation will switch to
space heating
Operation will
continue in
domestic hot water
Operation will
switch to space
heating
Timer [d-02] (15
minutes) passed
since? (2)
No
No
Timer [d-00] (10
minutes) passed
since? (1)
Yes (2)
Space heating
operation will
continue timer till
finished
(1) are in relation with each other
(2) are in relation with each other
(*) Storage set point can be automatic value if [b-02]=1
