Mitsubishi Electric EHWT17D-MHEDW, Справочник данных

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• Refer to <Table 7.5.1> for the part names.
7.5.2 Circuit diagram
36 50
41
39 53
43
34
33
33
23
20
28
9
27
11
31
10
8
16
19
Pa
18
13 15
14
26 12 7
25
5
37 39
29
38 40
44
48
42
49
47
45
3
17
6
22
4
31
52
46
32
24
21 35
51
30
(b)
(a)
36
54
Local
system 2*
Ambient
Heat
sink
Cold water
Local
system 1*
Flexible hose
(Temporary connection)
Mains water supply
Drain
Drain
DHW
Model name EHWT17D-MHEDW
Maximum supply pressure to the pressure reducing valve 16 bar
Operating pressure (Sanitary side) 3.5 bar
Expansion vessel charge setting pressure (Sanitary side) 3.5 bar
Expansion valve setting pressure (Sanitary side) 6.0 bar
Immersion heater specification (Sanitary side) * 3000 W, 230 V
DHW tank capacity 170 L
Mass of the unit when full 345 kg
Maximum primary working pressure 2.5 bar
Maximum sanitary-side working pressure 5.5 bar
Maximum ambient loop working pressure 9.5 bar
<Figure 7.5.2>
Note
• To enable draining of water circuit an isolating valve should be positioned on both the inlet and outlet pipework. No valve
should be fitted between the expansion valve (part of item 46) and the heat pump unit (safety matter).
• For space heating (primary) circuit a suitable expansion vessel MUST be supplied and fitted by installer. (See figure 7.6.4) Be
sure to install a magnetic filter (item 34) on the inlet pipework to the heat pump unit.
• Suitable drain pipework should be attached to the relief valves instructed to be connected to it in Figure 7.5.2 in accordance
with your country’s regulations.
• When using components made from different metals or connecting pipes made of different metals insulate the joints to prevent
any corrosive reaction taking place which may damage the pipework. Filling loop’s flexible hose must be removed following the
filling procedure. This flexible hose (Item 52) is included in PAC-WK02-E.
• Install the inlet control group (item 46) above the level of the T&P relief valve (item 22).
This will ensure DHW tank will not require drain down to service/maintain the inlet control group.
* Refer to the following section [Local system].
* EN60335/Type 3000W single phase
230V 50Hz, length 460 mm.
Use only Mitsubishi Electric service
parts as a direct replacement.
Water circuit
(Primary/Sanitary)
Refrigerant circuit Ambient loop
B-221
Water to Water Heat Pump (WTW)
7
Cylinder
unit/
Hydrobox/GSHP/WTW
Cylinder
unit/
Hydrobox/GSHP/WTW