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10.
Decommissioning
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.
11.
Environmental Requirements
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
1
Compressor
8
Temperature control, heat pump
15
Evaporator
2
Pressostat HP
9
Safety temperature limiter
16
Fan
3
Condenser
10
Temperature control, immers. heater 17
Check valve
4
Hot water tank
11
Temperature display
18
Insulation
5
Heat exchanger (not all types)
12
Filter drier
6
Immersion heater
13
Expansion valve
7
Sacrificial anode
14
Air temperature thermostat
TC
13
18
16
15
14
1
18
12
2
3
7
4
6
11
10
9
8
PA-CO-H
TI-CO-L
TI-CO-H
TI
-CO-H
-C I -L
TI
TI
-CO-H
-C I -L
free immersion well
17