Mitsubishi Electric PAC-SIF051B-E, Installation Manual

Page: 21 / 64

20
Note:
1. When the FTC 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. 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).
Item Name Model and specifications
External output function Outputs wire 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: 0.25 mm² to 1.5 mm²
Wiring specification and local supply parts
Outputs
Connect them using either way as shown above.
<Fig. 4.5.2>
L N
OUT9
L N
OUT15
L
1 2 3 4 5 6 TBO.1 1 2 3 4 5 6 TBO.2 TBO.3 1 2 3 4 5 6 7 8 1 2 3 4 6
5
TBO.4
L L L N N N
OUT1 OUT2 OUT3
N L L N
OUT5
OUT4
N L N L
OUT10 OUT16OUT11 OUT12
N
TBO.5 1 2 3 4 5 6 7 8
L L L
BHT BC OUT6 OUT7
N
OUT13
L N
OUT8
8
7
TBI.4 8 7
OUTA1
Close Open
en
4. Electrical work
Name Terminal
block
Connector Item OFF ON Signal/Max. current Max. total current
OUT1 TBO.1 1-2 CNP1
Water circulation pump 1 output
(Space heating/cooling & DHW)
OFF ON
230 V AC 1.0 A Max.
(Inrush current 40A Max.)
4.0A (a)
OUT2 TBO.1 3-4 —
Water circulation pump 2 output
(Space heating/cooling for Zone1)
OFF ON
230 V AC 1.0 A Max.
(Inrush current 40A Max.)
OUT3 TBO.1 5-6 —
Water circulation pump 3 output
(Space heating/cooling for Zone2) *1
OFF ON
230 V AC 1.0 A Max.
(Inrush current 40A Max.)
2-way valve 2b output *2
OUT4 TBO.2 4-6 CNV1 3-way valve (2-way valve 1) output Heating DHW 230 V AC 0.1 A Max.
3.0 A (b)
OUT5
TBO.2 1-2
— Mixing valve output *1 Stop
Close
230 V AC 0.1 A Max.
TBO.2 2-3 Open
OUT6 TBO.5 5-6 — Booster heater 1 output OFF ON 230 V AC 0.5 A Max. (Relay)
OUT7 TBO.5 7-8 — Booster heater 2 output OFF ON 230 V AC 0.5 A Max. (Relay)
OUT8 TBO.4 7-8 — Cooling signal output OFF ON 230 V AC 0.5 A Max.
OUT9 TBO.4 5-6 CNIH Immersion heater output OFF ON 230 V AC 0.5 A Max. (Relay)
OUT10 TBO.3 1-2 — Boiler output OFF ON
non-voltage contact
·220 - 240 V AC (30 V DC)
0.5 A or less
·10 mA 5 V DC or more
—
OUT11 TBO.3 5-6 — Error output Normal Error 230 V AC 0.5 A Max.
3.0 A (b) OUT12 TBO.3 7-8 — Defrost output Normal Defrost 230 V AC 0.5 A Max.
OUT13 TBO.4 3-4 — 2-way valve 2a output *2 OFF ON 230 V AC 0.1 A Max.
OUT14 — CNP4 Water circulation pump 4 output (DHW) OFF ON 230 V AC 1.0 A Max. 4.0 A (a)
OUT15 TBO.4 1-2 — Comp ON signal OFF ON 230 V AC 0.5 A Max. 3.0 A (b)
OUT16 TBO.3 3-4 — Heating/Cooling thermo ON signal OFF ON
non-voltage contact
·220 - 240 V AC (30V DC)
0.5 A or less
·10 mA 5 V DC or more
—
OUTA1 TBI.4 7-8 — Analog output — — 0 - 10 V DC 5 mA max. —
BC TBO.5 3-4 — Booster heater protection output OFF (BHT open) ON (BHT short) 230 V AC 0.5 A Max. —
BHT TBO.5 1-2 CNBHT Thermostat for booster heater
Thermostat Normal:
short
High temp. : open — —
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.
Thermistor inputs
Name Terminal block Connector Item Optional part model
TH1 — CN20 Thermistor (Room temp.) (Option) *1 PAC-SE41TS-E
TH2 — CN21 Thermistor (Ref. liquid temp.) *2 —
THW1 — CNW12 1-2 Thermistor (Flow water temp.) —
THW2 — CNW12 3-4 Thermistor (Return water temp.) —
THW5A — CNW5 1-2 Thermistor (DHW tank upper water temp.) —
THW5B — CNW5 3-4 Thermistor (DHW tank water temp.) —
THW6 TBI.5 7-8 — Thermistor (Zone1 flow water temp.) (Option) *1
PAC-TH011-E
THW7 TBI.5 5-6 — Thermistor (Zone1 return water temp.) (Option) *1
THW8 TBI.5 3-4 — Thermistor (Zone2 flow water temp.) (Option) *1
PAC-TH011-E
THW9 TBI.5 1-2 — Thermistor (Zone2 return water temp.) (Option) *1
THWB1 TBI.6 7-8 — Thermistor (Boiler flow water temp.) (Option) *1
PAC-TH012HT(L)-E
THW10 TBI.6 5-6 — Thermistor (Mixing tank water temp.) (Option) *1
Ensure to wire thermistor wirings away from the power line and/or OUT1 to 16 wirings.
*1. The maximum length of the thermistor wiring is 30 m.
The length of the optional thermistors are 5 m. If you need to splice and extend the wirings, following points must be carried out.
1) Connect the wirings by soldering.
2) Insulate each connecting point against dust and water. Stranded wire should be processed with insulation-covered bar terminal (DIN46228-4 standard
compatible type).
*2. Except PAC-IF072/073B-E.
How to use TBO.1 to 5
Tool
Tool
Conductor
Conductor
Outline view Top view