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SPACE HEATING AND DHW
3 Structural Drawings
The typical structure of the DHW tank is shown as below (for
reference only):
H
＜½H
Ref.
1
Control panel
2
Storage tank
3
External covering
4
Top covering
5
Thermal insulation
6
Temperature pressure valve connection port
7
DHW electric heater
8
DHW tank inner coil inlet
9
DHW tank inner coil outlet
10
DHW tank water inlet
11
DHW tank water outlet
12
Drainage outlet
13
Thermistor for DHW
Name
For different storage capacity, the structural design of the
DHW tank may be different. The parameters of the typical
structure shown in the left are recommended as follows:
Ref.
A
*Please check and adjust according to the actual situation.
(1)
Thermistor for DHW
The DHW tank including the thermistor, the DHW electric
①
heater and the DHW tank inner coil must be designed and
installed in accordance with the local regulation.
The position of the thermistor is very important. The
②
reasonable position will help to ensure the detection accuracy
of the DHW temperature. It is related to the operation of the
heat pump.
(2)
DHW electric heater
①
The electric heater is necessary to heat up the DHW tank in
the following conditions:
●
Supplement the heat pump to heat up the DHW tank when
the heating capacity of the heat pump is insufficient in low
ambient temperature.
●
Heat up the DHW tank when the operating conditions
exceed the limitation, see details in Section "1 GENERAL
INFORMATION".
②
The capacity of the DHW electric heater is related to the
storage capacity of the DHW tank, and should be selected
according to the following demand.
●
Larger capacity of the DHW electric heater is beneficial to
heat up the DHW tank, but will consume more power, while
smaller capacity of the electric heater will cost more time to
heat up the DHW tank.
●
The temperature pressure valve and the temperature
protection device (covered by the control panel ) must be
installed according to local regulation and performed by
qualified professionals referring to Section "8.4.2 Safety
device".
20
Recommended
value(mm)*
Min.150
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