14
GB
11. Information on rating plate
Model
PWFY-P36NMU-E-BU
PWFY-P36NMU-E2-AU
PWFY-P72NMU-E2-AU
Refrigerant
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-
-
Design pressure
R410A MPa [psi]
4.15 MPa [601 psi]
4.15 MPa [601 psi]
4.15 MPa [601 psi]
R134a MPa [psi]
3.60 MPa [522 psi]
-
-
Water MPa [psi]
1.0 MPa [145 psi]
1.0 MPa [145 psi]
1.0 MPa [145 psi]
Net weight
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10.2. Connecting remote controller, indoor
and outdoor transmission cables
(Remote contoroller is optionally available.)
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the connecting cables, refer to the outdoor unit installation manual.
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-
troller.
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2-wire)
[Fig. 10.2.1] (P.6) MA Remote controller
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Ⓐ
Outdoor
unit
Ⓑ
BC
controller
Ⓒ
PWFY-P36NMU-E-BU
Ⓓ
PWFY-P36/P72NMU-E2-AU
Ⓔ
MA remote controller
[Fig. 10.2.2] (P.6) MA Remote controller
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-
ably.
Ⓐ
Non-polarized
Ⓑ
TB15 (MA remote controller cables)
Ⓒ
MA remote Controller
Ⓓ
TB5 (Transmission cables)
Ⓔ
TB2 (Power supply wiring)
Note:
Ensure that the wiring is not pinched when
¿
tting the terminal box cover.
Pinching the wiring may cut it.
Caution:
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-
plemental insulation.
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-
tion to the PG screw.
Caution:
Wire the power supply so that no tension is imparted. Otherwise disconne-
ction, heating or
¿
re result.
10.3. External input/output function
Preset temperature input (external analog input: 4mA-20mA)
External input is input through CN421, CN422 on the circuit board. (Fig. 10.3.1)
Use the supplied connector.
If no temperature settings are made via the MA remote controller, the tempera-
ture changes with the current.
Refer to the instructions manual that came with the MA remote controller for how
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4 mA
→
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20
mA
→
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External output terminal
External output terminal (refer to Fig. 10.3.2) is ineffective when the circuit is open.
Refer to Table 10.3.2 for information about each contact.
The current in the circuit to be connected to the external output terminal must be
0.6A or less.
Table10.3.2
OUT1
Operation ON/OFF
OUT2
Defrost
OUT3*1
Compressor
OUT4
Error signal
*1 This function is available for PWFY-P36NMU-E-BU
External input terminal
The piping length must be within 100 m [328 ft].
External input terminal (refer to Fig. 10.3.3) is ineffective when the circuit is open.
Refer to Table 10.3.3 through Table 10.3.5 for information about each contact.
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Connect a relay circuit to the external output terminal as shown in Fig. 7.4.1.
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conditions.
Contact rating voltage DC15V
Contact rating current 0.1A
Minimum applicable load 1mA at DC
Table10.3.3
TB142A
IN1
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Table10.3.4
TB142B
IN3
Connection demand
IN4
Operation ON/OFF
Table10.3.5
TB142C
COM+
Common
IN5*1
Hot Water/Heating
IN6*2
Heating ECO
IN7*3
Anti-freeze
IN8*5
Cooling
*1 PWFY-P36NMU-E-BU
Hot Water
PWFY-P36/P72NMU-E2-AU Heating
*2 Effective when SW 4-3 is set to ON.
*3 Effective when SW 4-4 is set to ON.
*4 When setting Heating ECO or Anti-Freeze mode, reset all power supply of all
units (outdoor/indoor units).
*5 This function is available for PWFY-P36/72NMU-E2-AU
10.4. Setting addresses
(Be sure to operate with the main power turned OFF.)
[Fig. 10.4.1] (P. 6)
<Address board>
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9 and over 10, and setting branch numbers.
①
How to set addresses
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6:8IRUWRZLWK³´
②
How to set branch numbers SWU3 (Series R2 only)
Match the indoor unit’s refrigerant pipe with the BC controller’s end con-
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switches can be used to set unit addresses and branch numbers at will.
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Set them referring to the DATA BOOK.
