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14 Technical data
Installer reference guide
94
ERHQ+ERLQ011~016 + 16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
14.6
Wiring diagram: Backup heater
See the internal wiring diagram supplied with the unit (on the inside of the backup heater cover). The abbreviations used are listed below.
Notes to go through before starting the unit
English
Translation
Notes to go through before
starting the unit
Notes to go through before
starting the unit
X14M, X15M
Main terminal
Earth wiring
15
Wire number 15
Field supply
1
Several wiring possibilities
Option
Switch box
Wiring depending on model
PCB
Optional backup heater
configuration (only for
EKLBUHCB6W1)
Optional backup heater
configuration (only for
EKLBUHCB6W1)
1N~, 230 V, 6 kW
1N~, 230 V, 6 kW
3N~, 400 V, 6 kW
3N~, 400 V, 6 kW
Position in switch box
English
Translation
Position in switch box
Position in switch box
Legend
E1H
Backup heater element (1 kW)
E2H
Backup heater element (2 kW)
F1B
Overcurrent fuse backup heater
F1T
Thermal fuse backup heater
F1U
Fuse
K1M
Contactor backup heater (step 1)
K2M
Contactor backup heater (step 2)
K5M
Safety contactor backup heater (only for
*6W)
Q3DI
#
Earth leakage circuit breaker
Q1L
Thermal protector backup heater
R2T
Outlet backup heater thermistor
X*M
Terminal strip
# =
Field supply
Translation of text on wiring diagram
English
Translation
BUH option
Backup heater option
Indoor unit
Indoor unit