Outline of Control (Indoor Unit) ESIE09-08A
72 Function
2. Storage operation
When requesting space heating and domestic water heating (storage) at the same time, this involves
that the storage function is active and the start timer is reached (setting 1) during space heating
operation. The 3-way valve will switch over to domestic water heating operation. Now domestic
water will be produced till set point is reached or according to the running timer (setting [d-01]). The
3-way valve will switch back to space heating mode for the interval period (setting [d-02]). After this
interval the 3-way valve will go back to domestic water mode. This will continue till set point is
reached. At that moment, simultaneous request is finished and the system goes back to space heating
mode.
H Domestic hot water reheat minimum temperature [b-00]
J Domestic hot water reheat maximum temperature [b-01]
M Simultaneous demand
N ONLY space heating request
ON ON
OFF OFF
A Operation
Space heating
Domestic water heating
B Domestic hot water storage thermo-on request
C Domestic hot water tank temperature
D Leaving water thermo-on request
F Domestic hot water lower limit temperature
G Domestic hot water upper limit temperature (maximum possible storage temperature) [b-03]
M Simultaneous demand
N ONLY space heating request
O Start of interval period
P Stop of interval period
ON ON
OFF OFF
1 Maximum operation time for 1 cycle of domestic water heating (initial 30 minutes [d-01])
2 Interval minimum stop time for domestic water heating (initial 15 minutes [d-02])
3 Maximum operation time for domestic water heating (initial 30 minutes [d-01])
A
MOPN
B
C
75°C
35°C
ON
G
F
OFF
D
ON
OFF
1
2
3
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