08
4.4.3 To connect the backup heater kit to the outdoor unit
For the sensor, connect 2 wires between backup heater terminals XT20/5+6 and control box connector T1.
For the connection with the control box, connect 2 wires between backup heater terminals XT20/1+2 and control box terminals XT7/20+21.
1 2 3 4 5 6
XT7
XT20
20
(
IBH1
)
21
(
N
)
Backup heater
BH30A
BH30B
BH45B
Heat pump system
E series
L N
TO T1
E series
Backup heater
Heat pump system
1 2 3 4 5 6
XT7
XT20
20
(
IBH1
)
21
(
N
)
L1 L2 L3
BH45B/R
TO T1
Summary of Contents for BH30A
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