Mitsubishi Electric ecodan ERST20 series Installationshandbuch Seite 25

5
System Set Up
Outputs
name terminal block Connector item
OUT1 TBO.1 1-2 CNP1
OUT2 TBO.1 3-4 —
OUT3 TBO.1 5-6 —
OUT14 — CNP4
OUT4 TBO.2 4-6 CNV1
TBO.2 1-2
OUT5 —
TBO.2 2-3
OUT6 — CNBH 1-3
OUT7 — CNBH 5-7
OUT8 TBO.4 5-6 —
OUT9 TBO.4 3-4 CNIH
OUT11 TBO.3 3-4 —
OUT12 TBO.3 5-6 —
OUT13 TBO.4 1-2 —
OUT15 TBO.3 7-8 —
OUT10 TBO.3 1-2 —
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
TBO.1 1 2 3 4 5 6
OUT1 OUT2 OUT3
Wiring specification and local supply parts
item name
External output function Outputs wire
note:
1. When the cylinder unit is powered via outdoor unit, the maximum grand total current of (a)+(b) is 3.0 A.
2. 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).
3. do not connect water circulation pumps to both tBO.1 1-2 and CnP1 at the same time.
4. Connect an appropriate surge absorber to OUt10 (tBO.3 1-2) depending on the load at site.
5. Stranded wire should be processed with insulation-covered bar terminal (din46228-4 standard compatible type).
Water circulation pump 1 output (Space heating/cooling & DHW)
Water circulation pump 2 output (Space heating/cooling for Zone1)
Water circulation pump 3 output (Space heating/cooling for Zone2) *1 OFF
2-way valve 2b output *2
Water circulation pump 4 output (DHW)
3-way valve output
Mixing valve output *1
Booster heater 1 output
Booster heater 2 output
Cooling signal output
Immersion heater output
Error output
Defrost output
2-way valve 2a output *2
Comp ON signal
Boiler output
N L N L
TBO.2 1 2 3 4 5 6
OUT4
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 ON
OFF ON
OFF ON
ON
OFF ON
Heating DHW
Close
Stop
Open
OFF ON
OFF ON
OFF ON
OFF ON
Normal Error
Normal Defrost 230V AC 0.5A Max.
OFF ON
OFF ON
OFF ON
N L N L N L
TBO.3 1 2 3 4 5 6 7 8
OUT10 OUT11OUT12 OUT15
How to use TBO.1 to 4
Conductor
Outline view
Connect them using either way as shown above.
Signal/Max current Max. total current
230V AC 1.0A Max.
230V AC 1.0A Max.
230V AC 1.0A Max. 4.0A (a)
230V AC 1.0A Max.
230V AC 0.1A Max.
230V AC 0.1A Max.
230V AC 0.5A Max. (Relay)
230V AC 0.5A Max. (Relay)
230V AC 0.5A Max. 3.0A (b)
230V AC 0.5A Max. (Relay)
230V AC 0.5A Max.
230V AC 0.1A Max.
230V AC 0.5A Max.
non-voltage contact
·220-240V AC (30V DC)
0.5A or less
·10mA 5V DC or more
N L N L N L
TBO.4 1 2 3 4 5 6
OUT13 OUT9 OUT8
Tool
Tool
Conductor
Top view
<Figure 5.2.2>
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