Daikin EKHBH008BB Series, Руководство по установке

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EKHBH/X008BB
Indoor unit for air to water heat pump system
4PW62570-1A – 01.2011
Installation manual
12
5.3. Switch box main components
1. Backup heater contactors K1M, K2M, K5M and K6M.
2. Main PCB
The main PCB (Printed Circuit Board) controls the functioning of
the unit.
3. Booster heater contactor K3M (only for installations with
domestic hot water tank)
(1)
4. Booster heater circuit breaker F2B (only for installations with
domestic hot water tank)
(2)
The circuit breaker protects the booster heater in the domestic
hot water tank against overload or short circuit.
5. Backup heater circuit breaker F1B, F3B
The circuit breaker protects the backup heater electrical circuit
against overload or short circuit.
6. Terminal blocks
The terminal blocks allow easy connection of field wiring.
7. Cable tie mountings
The cable tie mountings allow to fix the field wiring with cable
ties to the switch box to ensure strain relief.
8. Terminal blocks X3M, X4M (only for installations with domestic
hot water tank)
(3)
9. PCB fuse FU1
10. DIP switch SS2
The DIP switch SS2 provides 4 toggle switches to configure
certain installation parameters. See
"8.1. DIP switch settings
overview" on page 23 .
11. X13A socket
The X13A socket receives the K3M connector (only for
installations with domestic hot water tank).
12. X9A socket
The X9A socket receives the thermistor connector (only for
installations with domestic hot water tank).
13. Fuse FU2 (in line fuse)
14. Transformer TR1
15. A4P
Digital I/O PCB (only for installations with solar kit or digital I/O
PCB kit).
16. X6YA/X6YB/X6Y
(4)
Connectors for connecting to a normal kWh rate power supply.
See also
"Connection to a benefit kWh rate power supply" on
page 22 .
5.4. Functional diagram
1 Outdoor unit
2 Indoor unit
3 Expansion vessel
4 Manometer
5 Air purge valve
6 Pressure relief valve
7 Backup heater
8 Pump
9 Flow switch
10 Shut-off valve water outlet with drain valve (field
installation)
11 Shut-off valve water inlet with drain valve (field installation)
12 Filter
13 Heat exchanger
R1T Outlet water heat exchanger thermistor
R2T Outlet water backup heater thermistor
R3T Refrigerant liquid side thermistor
R4T Inlet water thermistor
(1) Only applicable for tank with built-in electrical booster heater (EKHW*).
(2) Only applicable for tank with built-in electrical booster heater (EKHW*).
(3) Only applicable for tank with built-in electrical booster heater (EKHW*).
TR1
K1M K2M K5M
K3M K6M
F2B F3B F1B
X1M
X3M
X2M X4M
A1P
A4P
14
12
11
10
9
15
6
6
1
2
3
1
5
13
8
7
8
X9A
X13A
SS2
FU2
FU1
4
5
16
(4) When the unit is configured for restricted power supply condition mode,
see "Appendix" on page 51 .
NOTICE
The electrical wiring diagram can be found on the inside of
the switch box cover.
R4T
H
2
O
t >
R3T
t >
R2T
t >
R1T
t >
9
10
11
3 2 4 8
12 13 1
5 6 7