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7
Water to Water Heat Pump (WTW)
Outputs
Terminal
Name
Connector Item
block
OUT1
TBO.1 1-2 CNP1
OUT2
TBO.1 3-4
—
OUT3 TBO.1 5-6
—
OUT14
—
CNP4
OUT4
—
CN851
TBO.2 1-2
OUT5
—
TBO.2 2-3
OUT6
—
—
OUT7
—
—
OUT8
TBO.4 7-8
—
OUT9 TBO.4 5-6 CNIH
OUT11 TBO.3 5-6
—
OUT12 TBO.3 7-8
—
OUT13 TBO.4 3-4
—
OUT15 TBO.4 1-2
—
OUT10 TBO.3 1-2
—
OUT16 TBO.3 3-4
—
OUTA1 TBI.4 7-8
—
Do not connect to the terminals that are indicated as "—" in the "Terminal block" field.
*1 For 2-zone temperature control.
*2 For 2-zone valve ON/OFF control.
N
L
N
L
N
L
1 2 3 4 5 6
TBO.1
OUT1 OUT2 OUT3
Wiring specification and local supply parts
Item
Name
External output
Outputs
function
wire
Note:
1. Do not connect multiple water circulation pumps directly to each output (OUT1, OUT2, and OUT3). In such a case,
connect them via (a) relay(s).
2. Do not connect water circulation pumps to both TBO.1 1-2 and CNP1 at the same time.
3. Connect an appropriate surge absorber to OUT10 (TBO.3 1-2) depending on the load at site.
4. Stranded wire should be processed with insulation-covered bar terminal (DIN46228-4 standard compatible type).
5. Use the same thing as the Signal input wire for OUTA1 wiring.
B-216
Water circulation pump 1 output (Space heating & DHW)
Water circulation pump 2 output (Space heating for Zone1)
Water circulation pump 3 output (Space heating for Zone2) *1
2-way valve 2b output *2
Water circulation pump 4 output (DHW)
3-way valve output
Mixing valve output *1
Immersion heater output
Error output
2-way valve 2a output *2
Comp ON signal
Boiler output
Heating thermo ON signal
Analog output (PICV Output)
N L L
N
TBO.2
1 2 3 4 5 6
TBO.3 1 2 3 4 5 6 7 8
Close Open
OUT5
Model and specifications
Use sheathed vinyl coated cord or cable.
Max. 30 m
Wire type: CV, CVS or equivalent
Wire size: Stranded wire: 0.25 mm² to 1.5 mm²
Solid wire: ø0.57 mm to ø1.2 mm
OFF
OFF
OFF
OFF
OFF
Heating DHW
—
—
—
Normal Error 230V AC 0.5A Max.
—
OFF
OFF
OFF
OFF
OFF
N L N L
TBO.4
OUT10 OUT16OUT11 OUT12
How to use TBO.1 to 4
Conductor
Outline view
Connect them using either way as shown above.
ON
Signal/Max current
ON
230V AC 0.6A Max.
ON
230V AC 1.0A Max.
ON
230V AC 1.0A Max.
ON
230V AC 0.4A Max.
—
Close
Stop
230V AC 0.1A Max.
Open
—
—
—
—
—
—
—
—
—
230V AC 0.1A Max.
—
—
(Relay)
—
—
—
ON
230V AC 0.1A Max.
ON
230V AC 0.5A Max.
non-voltage contact
ON
·220-240V AC (30V
DC)
0.5A or less
ON
·10mA 5V DC or
more
ON
0-10V DC 5mA max.
N
L
N
L
N
L
N L
1 2 3 4
5
6
7 8
OUT15
OUT13
OUT9
OUT8
Tool
Top view
<Figure 7.4.6>
Max. total
current
3.0A
1.3A
—
—
TBI.4 8 7
OUTA1
Tool
Conductor
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