Daikin ALTHERMA HT Service Manual page 268

External Backup Heater Kit
EKBUHAA6W1
Legend
Part number
E1H, E2H, E3H
F1B
F1U
F1T
K1A
K2A
K1M, K2M
K5M
S1L
Q1L
Q2L
X1M, X2M
256
S1L
F1T
Q1L
E1H + E2H + E3H
Q2L
Description
Backup heater elements
Fuse backup heater (20A 400V)
Fuse (5A T 250V)
Thermal fuse backup heater
Time relay (on-delay)
Auxilary relay
Contactor backup heater step
Contactor for backup heater (all pole disconnection)
Flowswitch
Thermal protector backup heater (manual reset)
Thermal protector inlet water (automatic reset)
Terminal strip
K1M K2M
K5M
K2A
F1U
F1B
K1A
X2M
X1M
ESIE09-08B
Appendix