Technical Information - Mitsubishi Electric ecodan EHPT20Q-VM2EA Installation Manual

3

Technical Information

Component Parts
EHPT20Q-VM2EA
10
11
10
B
A
C
E
F
D
1
6
18
9
2 31
4
5
13
7
3
12
16
25
15
19
14
26
20
23
24
8
<Figure 3.1>
<Note>
Make sure to correctly install the Mitsubishi Electric Accessory
Parts (e.g. Primary expansion vessel, Tundish and Filling loop)
in the field. (See Page 8, 12 and 14.)
6
No. Part name EHPT20Q-VM2EA
A DHW outlet pipe
B Cold water inlet pipe
C Water pipe (Space heating return connection)
D Water pipe (Space heating flow connection)
E Water pipe (Flow from heat pump connection)
F Water pipe (Return to heat pump connection)
1 Control and electrical box
2 Main controller
3 Booster heater with thermostat
4 3-way valve
5 Manual thermostat
6 Manual air vent (above tank)
7 Manual air vent (above pump A)
8 Drain valve (Primary circuit)
9 Manometer
10 Primary pressure relief valve (3bar)
11 Automatic air vent
12 Flow sensor 1 (For space heating)
13 Flow sensor A (Secondary (Potable) circuit)
14 Flow sensor B (Primary circuit)
15 Strainer valve
16 Water circulation pump A (For hot water supply to plate heat exchanger)
17 Pump valve
18 Primary thermal store tank
19 Plate heat exchanger (Water - Water)
20 Water circulation pump 1 (For thermal store and space heating)
21 THW1 (Flow water temp. thermistor)
22 THW2 (Return water temp. thermistor)
23 Drain cock (HEX) (Secondary (Potable) circuit)
24 Drain cock (HEX) (Primary circuit)
25 Drain cock (Booster heater)
26 Drain cock (For pump A)
27 THW5A (Stored water temp. thermistor (upper))
28 THW5B (Stored water temp. thermistor (lower))
29 THW3 (Flow water temp. thermistor 2 (to tank))
30 THW4 (DHW supply temp. thermistor)
31 Electrical isolation pipe
32 Primary expansion vessel (Accessory item)
33 Drain pipe (Local supply)
34 Tundish (Accessory item)
35 Isolating valve (Local supply)
36 Magnetic filter (Local supply) (Recommended)
37 Strainer (Local supply)
38 Filling loop (Ball valves, check valves and flexible hose) (Accessory item)
39 Thermo mix valve (recommended) (Local supply)
<Table 3.2>
3
Technical Information
Technical Drawings
Presser relief valve
Rc1/2
<Left side>
—
—
—
—
—
—
—
—
Letter Pipe and cable description
A DHW outlet connection
B Cold water inlet connection
C Space heating return connection
D Space heating flow connection
E Flow from heat pump connection (No plate heat exchanger) 22 mm/Compression
F Return to heat pump connection (No plate heat exchanger)
①
Booster heater inlet (Power cable 230 V)
②
Main power inlet (Power cable 230 V)
③
Cylinder unit - outdoor unit cable (Power cable 230V)
④
Output cable inlet
⑤
Signal input cable inlet
⑥
Wireless receiver and Wi-Fi interface cable inlet
595
Air vent
Rc1/2
Manometer
Main controller
Front panel
<Front> <Right side>
0 0
E
B
F
A
430.6
438.1
513.1 ④ 503.1
568.1
533.1
⑤ ⑥
① ② ③
568.1
578.1
D C
<Top>
Connection size/type
22 mm/Compression
22 mm/Compression
22 mm/Compression
22 mm/Compression
22 mm/Compression
Run booster heater cable
Run power cable
Run cylinder unit -outdoor unit cable
Run output cable
Run signal input cables and remote sensor wires
Run wireless receiver cable and ecodan Wi-Fi interface (option) cable
<Table 3.3>
<Unit: mm>
680
Presser relief
valve
Handle
<Back side>
Pipe or cable length (Max.)
—
—
65 m
65 m
15 m
15 m
—
—
15 m
—
—
—
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