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Decommissioning
10.
Activities to be performed:
•
Disconnect HPWH from the power source.
•
Completely shut off water circuit (hot water, cold water and circulation line) and drain the hot water stor-
age tank.
Environmental Requirements
11.
Environment-relevant requirements regarding the recovery, reuse and disposal of service fuels and compo-
nents in accordance with DIN EN 378 must be adhered to when repairing or decommissioning the HPWH.
12
Appendix
12.1 Refrigeration Cycle with Legend
11
TI
10
TI
9
TI-CO-H
8
TI
free immersion well
1
Compressor
2
Pressostat HP
3
Condenser
4
Hot water tank
5
Heat exchanger (not all types)
6
Immersion heater
7
Sacrificial anode
14
TI-CO-L
4
-CO-H
-C I -L
6
-CO-H
-C I -L
8
9
10
11
12
13
14
15
16
17
7
PA-CO-H
3
Temperature control, heat pump
Safety temperature limiter
Temperature control, immers. heater 17
Temperature display
Filter drier
Expansion valve
Air temperature thermostat
18
13
TC
18
1
12
2
15
Evaporator
16
Fan
Check valve
18
Insulation
Page 13 of
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