22
OCH714D
6-7. ERST17D-VM6BD
1
2
CN22
(BU)
CN108
CN01
(BK)
1
3
CN3C
(BU)
1
3
CNPWM
(WH)
1
8
CN851
(BK)
3WV *
(Stepping
motor)
1
5
CNRF
(WH)
Wireless receiver
(Option)
1
5
CN105
(RD)
WiFi adapter
(Option)
1
5
CNIT
(BU)
1
2
CN20
(RD)
1
3
CN21
(YE)
1
4
CNW12
(RD)
CNW5
(BU)
1
4
CN1A
(WH)
TBI.1
LED1
LED2
LED3
LED4
TAB1
1
8
1
8
1
8
1
8
1
6
SW1
SW2
SW3
SW4
SW5
F1
IEC T10AL250V
F2
IEC T6.3AL250V
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
3
1
7
1
3
1
3
CNBC
(GY)
CNBH
(WH)
CNBHT
(BK)
CNIH
(OG)
CNV1
(WH)
CNP4
(RD)
CNP1
(WH)
TBO.1
TBO.2
TBO.3
TBO.4
1
3
5
1
3
CNP4
(RD)
F1
F2
CN01
(BK)
TBO.1
X1
X2
X3
X14
1
3
3
CNPWM
(WH)
CNP1
(WH)1
3
M
1~
MP3
MP4
1
2
3
4
5
6
TBO.2
1
3
5
CNV1
(WH)
3WV *
(AC motor)
1
2
3
4
5
6
7
8
TBO.3
X4
X10
X16
X11
X12
TBO.4
1
2
3
4
5
6
7
8
X15
X13
X9
X8
Signal output
(Boiler)
Signal output
(thermo on)
Signal output
(Error)
Signal output
(Defrost)
Signal output
(Comp. on)
CNIH
(OG)
1
3
1
3
1
3
1
7
X6
X7
CNBHT
(BK)
CNBC
(GY)
CNBH
(WH)
1
5
3
1
5
3
1
3
1
3
3
5
FTC board
X5B
X5A
MXV
Close
N
Open
MP2
MP1
M
1~
M
1~
TBI.2
TBI.3
TBI.4
TBI.5
TBI.6
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
3
5
1
4
CN401
(WH)
1
4
t°
t°
t°
1
2
3
4
5
6
7
8
IN4
IN3
IN2
IN1
1
2
3
4
5
6
7
8
IN10
IN7
IN6
IN5
1
2
3
4
5
6
7
8
IN12
IN9
IN8
IN11
1
2
3
4
5
6
7
8
OUTA1
1
4
Fl
ow
S
en
so
r
Pressure Sensor *
CN1A
(WH)
1
2
3
4
5
6
7
8
t°
THW6 THW7 THW8 THW9
t°
t°
1
2
3
4
5
6
7
8
THWB1 THW10
2
1
M
ai
n
re
m
ot
e
co
nt
ro
lle
r
TBI.1
TBI.2
TBI.3
TBI.4
TBI.5
TBI.6
CN20
(RD)
t°
CN21
(YE)
1
3
1
2
CNW12
(RD)
1
4
CNW5
(BU)
t°
t°
TAB1
CN22
(BU)
TH
TH1
TH2 *
THW5B
THW5A
- +
+ -
V
- + - +
1
4
CN401
(WH)
1
4
t°
t°
t°
THW2
THW1
1
5
SW6
M
1~
M
1~
M
1~
N
L
S3
S2
S1
N
L
S3
S2
S1
To outdoor
unit
TB1
OG
OG
YE
YE
GNYE
To outdoor
unit
Power supply
~/N 230V 50Hz
TB1
OG
BU
RD
BU
RD
YE
GNYE
1
3
1
3
OG
BN
OG
BN
Indoor unit powered
by independent source
Indoor unit powered
via outdoor unit
CIRCUIT BREAKER
1
3
5
CN3C
(BU)
CN3C
(BU)
CN01
(BK)
OG
YE
1
3
5
CN01
(BK)
WH
WH
2
2
2
2
ECB1
L
(1)
N
(3)
BHCP
BU
BU
BU
RD
RD
BU/No.3
WH/No.2
WH/No.1
BU/No.4
RD
VT
VT
PK
PK
GY
GY
BHC2
BHC1
BHT
6
4
2
5
3
1
A1
A2
6
4
2
5
3
1
A1
A2
BH1
BHF
BH2
2 4
Power supply
to Booster heater
~/N 230V 50Hz
6
4
2
5
3
1
A1
A2
CNBH
(WH)
CNBHT
(BK)
2
2
2
2
CNBC
(GY)
1
1
3
5
7
3
1
3
Tool
Tool
Conductor
Conductor
Outline view
Top view
<How to use TBO.1 to 4>
Connect them using either way as shown below.
Symbol
Name
TB1
Terminal block <Power supply, Outdoor unit>
ECB1
Earth leakage circuit breaker for booster heater
ECB2
Earth leakage circuit breaker for immersion heater
(Option)
MP1
Water circulation pump 1 (Space heating and DHW)
MP2
Water circulation pump 2 (Space heating for Zone1)
MP3
Water circulation pump 3 (Space heating for Zone2)
MP4
Water circulation pump 4 (DHW)
3WV
3-way valve (AC motor)
(E*PT20/30X-*M**D*, E*ST**C/30D-*M**D)
3-way valve (Stepping motor)
(E*PT17X-*M**D*, E*ST17/20D-*M**D)
MXV
Mixing valve
IHT
IH
Immersion heater (Option)
IHC
Contactor for immersion heater (Option)
TH1
TH2
THW1
THW2
THW5A
THW5B
THW6
THW7
THW8
THW9
THW10
THWB1
IN1
Room thermostat 1 (Local supply)
IN2
Flow switch 1 (Local supply)
IN3
Flow switch 2 (Local supply)
IN4
Demand control (Local supply)
IN5
Outdoor thermostat (Local supply)
IN6
Room thermostat 2 (Local supply)
IN7
Flow switch 3 (Local supply)
IN8
Electric energy meter 1 (Local supply)
IN9
Electric energy meter 2 (Local supply)
IN10
Heat meter (Local supply)
IN11
Smart grid ready input (Local supply)
IN12
INA1
Flow sensor
Terminal block <Outputs>
Terminal block <Signal Inputs, Thermistor>
F1
Fuse (IEC T10AL250V)
F2
SW1-6 DIP switch *See Table 6.9.1
X1-16
Relay
LED1
Power supply (FTC)
LED2
Power supply (Main remote controller)
LED3
Communication (FTC-Outdoor unit)
LED4
Reading or writing data to SD card
CNPWM Pump speed control signal for MP1
CN108 SD card connector
: connector,
Table 1 Signal Inputs
Name Terminal block Connector
Item
OFF (Open)
ON (Short)
IN1
— Room thermostat
1 input *1
Refer to SW2-1 in
IN2
— Flow switch 1
input
Refer to SW2-2 in
IN3
— Flow switch 2
input (Zone1)
Refer to SW3-2 in
IN4
— Demand control
input
Normal
Heat source OFF/
Boiler operation *3
IN5
— Outdoor thermo-
stat input *2
Standard opera-
tion
Heater operation/
Boiler operation *3
IN6
— Room thermostat
2 input *1
Refer to SW3-1 in
IN7
— Flow switch 3
input (Zone2)
Refer to SW3-2 in
IN8
— Electric energy
meter 1
IN9
— Electric energy
meter 2
IN10
— Heat meter
IN11
— Smart grid ready
input
IN12
—
INA1
CN1A Flow sensor
Table 2 Outputs
Name Terminal block Connector
Item
OFF
ON
OUT1
CNP1 Water circulation pump 1 output
(Space heating/cooling & DHW)
OFF
ON
OUT2
— Water circulation pump 2 output
(Space heating/cooling for Zone1)
OFF
ON
OUT3
—
Water circulation pump 3 output
(Space heating/cooling for Zone2) *1
OFF
ON
2-way valve 2b output *2
OUT4
CNV1 3-way valve (2-way valve) output
Heating DHW
—
CN851 3-way valve output
OUT5
— Mixing valve output *1
Stop
Close
Open
OUT6
—
CNBH 1-3 Booster heater 1 output
OFF
ON
OUT7
—
CNBH 5-7 Booster heater 2 output
OFF
ON
OUT8
— Cooling signal output
OFF
ON
OUT9
CNIH Immersion heater output
OFF
ON
OUT10
N
O
F
F
O
t
u
p
t
u
o
r
e
li
o
B
—
OUT11
r
o
rr
E
l
a
m
r
o
N
t
u
p
t
u
o
r
o
rr
E
—
OUT12
t
s
o
rf
e
D
l
a
m
r
o
N
t
u
p
t
u
o
t
s
o
rf
e
D
—
OUT13
— 2-way valve 2a output *2
OFF
ON
OUT14
—
CNP4 Water circulation pump 4 output
(DHW)
OFF
ON
OUT15
—
OFF
ON
OUT16
— Thermo ON signal
OFF
ON
OUTA1
V
0
1
-
V
0
t
u
p
t
u
o
g
o
l
a
n
A
—
Table 6.9.1
Table 6.9.1
Table 6.9.1
Table 6.9.1
Table 6.9.1
