Mitsubishi Electric ecodan EHPT20X- VM2HB, Руководство по обслуживанию

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Symbol Name Symbol Name
TB1 Terminal block <Power supply, Outdoor unit> TH1 Thermistor (Room temp.)(Option)
ECB1 Earth leakage circuit breaker for booster heater THW1 Thermistor (Flow water temp.)
ECB2 Earth leakage circuit breaker for immersion heater THW2 Thermistor (Return water temp.)
MP1 Water circulation pump1(Space heating & DHW) THW5 Thermistor (DHW tank water temp.)
MP2 Water circulation pump2
(Space heating for Zone1)(Field supply)
THW6 Thermistor (Zone 1 flow temp.)(Option)
THW7 Thermistor (Zone 1 return temp.)(Option)
MP3 Water circulation pump3
(Space heating for Zone2)(Field supply)
THW8 Thermistor (Zone 2 flow temp.)(Option)
THW9 Thermistor (Zone 2 return temp.)(Option)
3WV 3-way valve THWB1 Thermistor (Boiler flow temp.)(Option)
MXV Mixing valve (Field supply) THWB2 Thermistor (Boiler return temp.)(Option)
BHT Thermostat for booster heater IN1 Room thermostat 1 (Field supply)
BHF Thermal fuse for booster heater IN2 Flow switch 1
BH1 Booster heater 1 IN3 Flow switch 2 (Field supply)
BHC1 Contactor for booster heater 1 IN4 Demand control (Field supply)
BHCP Contactor for booster heater protection IN5 Outdoor thermostat (Field supply)
IHT Thermostat (fixed temp.) for immersion heater IN6 Room thermostat 2 (Field supply)
IH Immersion heater IN7 Flow switch 3 (Field supply)
IHC Contactor for immersion heater
FLOW TEMP. CONTROLLER (FTC4)
TBO.1~2 Terminal block <Outputs>
TBI.1~2 Terminal block <Signal inputs, Thermistor>
F1~F2 Fuse (T6.3AL250V)
SW1~4 Dip switch *See
<6-13 Dip switch setting>
X1~X12 Relay
LED1 Power supply (FTC4)
LED2 Power supply (Main controller)
LED3 Communication (FTC4-Outdoor unit)
LED4 Reading or writing data to SD card
CNPWM Pump speed control signal for MP1
CN108 SD card connector
N L S3 S2 S1 N L S3 S2 S1
Figure 1
To outdoor
unit
TB1
ORN
ORN
Y
LW
BLK
BLK
YL
W
GRN/Y
LW
To outdoor
unit
Power supply
~/N 230V 50Hz
TB1
ORN
BLU RED BLU RED YL
W
GRN/Y
LW
1
3
CN3C
(BLU)
5
3
1
1
3
5
3
1
CN01
(BLK)
ORN
BRN
CN3C
(BLU)
CN01
(BLK)
ORN
ORN
BRN
Y
LW
Cylinder unit powered
by independent source.
Cylinder unit powered
via outdoor unit
CIRCUIT BREAKER
TBO.1
3
9
5
1
7
2
8
4
6
11
10
12
13
14
TBO.2
FTC4
3
9
5
1
7
2
8
4
6
11
10
12
13
14
TBI.1
12 6 10 14 8
13 7 11 9
4
5 3
2
1
TBI.2
12 6 10 14 8
13 7 11 9
4
5
3
2
1
1 3
CNP1(WHT)
1
5
CNV1
(WHT)
1
3
CN3C
(BLU)
5
3
1
CN01
(BLK)
1 8
SW3
1 8
SW1
LED1
LED3
1
1
8
6
SW2
SW4
TBI.1
13 10 12 14 11 7 4 6 5 9 3 2 8 1
TBI.2
13 10 12 14 11 7 4 6 5 9 3 2 8 1
1 2
CN20 (RED)
TH1
1 4
THW1
1
2
1 3
IN2 IN7 IN6 IN5 IN4 IN3 IN1
t° t°
THWB2 THWB1
THW8
t°
THW6
t°
THW7
t°
THW9
t°
Main
controller
1 2
THW2 THW5
CNW5 (WHT)
CNW12 (RED)
t° t° t° t°
1
3
1
7
CN2F
(YLW)
CN20
(RED)
CN21
(YLW)
CNW12
(RED)
CNW5
(WHT)
1
2
1
2
CN108
1
3
1 3 1 3
CNBH
(WHT)
CNBHT
(BLK)
1 3
CNIH
(ORN)
CNBC
(GRY)
1
7
LED4
LED2
1
2
CN22
(BLU)
CNPWM
(WHT)
1
3
5
1
Wireless receiver
(Option)
CNRF
(WHT)
5
1
CN105
(RED)
CN2F
(YLW)
CN22
(BLU)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2 2
2 2
ECB1
L
(1)
N
(3)
L
(1)
N
(3)
ECB2
BHCP
ORN
RED BLU
BLU
BLU
RED
BLU
WHT/No.2 WHT/No.1
RED
RED
V
LT
V
LT
G
R
Y
G
R
Y
ORN
IHC
BHC1
BHT
IHT
IH
6 4 2
5 3 1
A1
A2 6 4 2
5 3 1 A1
A2
BH1
A B
BHF
2 4 2 4
Power supply
to Immersion heater
~/N 230V 50Hz
Power supply
to Booster heater
~/N 230V 50Hz
2
2
2
1
3
5
7
1
5
X1
X2
X3
X4
X5A
X12
X11
X6
X8
X7
TBO.2
5
3
1
F1
F2
CN01
(BLK)
Signal
output
(Error)
Signal
output
(Defrost)
Signal
output
(Booster
)
3WV
M
1~
MXV
M
1~
M
1~
MP2
M
1~
MP3
MP1
M
1~
1
3
CNP1
(WHT)
1
3
1
3
Signal
output
(Boiler)
CNV1
(WHT)
1
3
CNPWM
(WHT)
CNIH
(ORN)
2 1
3 CNBHT(BLK)
X5B
X10
CNBC
(GRY)
CNBH
(WHT)
TBO.1
X9
6 4 2
5 3 1
A1
A2
Open
Close
N
3
EHPT20X-VM2HB WIRING DIAGRAM
Table 1 Signal Inputs
Name Terminal block Connector Item OFF (Open) ON (Short)
IN1 TBI.1 1-2 — Room thermostat 1 input Refer to SW2-1 in <6-13 Dip switch setting>
IN2 TBI.1 3-4 CN2F Flow switch 1 input Refer to SW2-2 in <6-13 Dip switch setting>
IN3 TBI.1 5-6 — Flow switch 2 input (Zone1) Refer to SW3-2 in <6-13 Dip switch setting>
IN4 TBI.1 7-8 — Demand control input Normal Heat source OFF/Boiler operation *2
IN5 TBI.1 9-10 — Outdoor thermostat input *1 Standard operation Heater operation/Boiler operation *2
IN6 TBI.1 11-12 — Room thermostat 2 input Refer to SW3-1 in <6-13 Dip switch setting>
IN7 TBI.1 13-14 — Flow switch 3 input (Zone2) Refer to SW3-3 in <6-13 Dip switch setting>
*1. If using outdoor thermostat for controlling operation of heaters, the lifetime of the heaters and
related parts may be reduced.
*2. To turn on the boiler operation, use the main controller to select “Boiler” in “External/input setting“
screen in the service menu.
Table 2 Outputs
Name Terminal block Connector Item OFF ON
OUT1 TBO.1 3-4 CNP1 Water circulation pump 1 output (Space heating & DHW) OFF ON
OUT2 TBO.1 5-6 — Water circulation pump 2 output (Space heating for Zone1) OFF ON
OUT3 TBO.1 7-8 — Water circulation pump 3 output (Space heating for Zone2) OFF ON
OUT4 TBO.1 9-11 CNV1 3-way valve output Heating DHW
OUT5 TBO.1 12-13 — Mixing valve output
Stop Close
TBO.1 13-14 Stop Open
OUT6 — CNBH 1-3 Booster heater 1 output OFF ON
OUT7 — CNBH 5-7 Booster heater 2 output OFF ON
OUT8 TBO.2 11-12 — Booster heater 2+ output OFF ON
OUT9 TBO.2 9-10 CNIH Immersion heater output OFF ON
OUT10 TBO.1 1-2 — Boiler output OFF ON
OUT11 TBO.2 1-2 — Error output Normal Error
OUT12 TBO.2 3-4 — Defrost output Normal Defrost
1. Symbols used in wiring diagram are,
: connector, : terminal block.
2. Indoor unit and outdoor unit connecting wires
have polarities, make sure to match terminal numbers
(S1, S2, S3) for correct wirings,
3. Since the outdoor unit side electric wiring may change,
be sure to check the outdoor unit electric wiring
diagram for servicing.
4. This diagram shows the wiring of indoor unit and
outdoor unit connecting wires (specification of 230V),
adopting superimposed system of power and signal.
When work to supply power separately to indoor
unit and outdoor unit was applied, refer to Figure 1.
18 19
6-8. EHPT20X-VM2HB
OCH531