Daikin ALTHERMA HT ERSQ 011 AA Service Manual page 282

External Backup Heater Kit
Legend
Part number
A8P
E1H, E2H, E3H
F1B
F1U
F1T
K1A
K2A
K1M, K2M
K5M
S1L
Q1DI
Q1L
Q2L
R1
X1M, X2M
X801M
#: field supplied
Notes
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
272
Description
Demand PCB (Indoor unit option)
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
# Earth leakage protector
Thermal protector backup heater (manual reset)
Thermal protector inlet water (automatic reset)
Inline resistor for flowswitch
Terminal strip
PCB terminal strip
X1M Main terminal
X2M Field wiring terminal
Earth wiring
Wire number 15
Field supply
Several wiring possibilities
Option
Wiring depending on model
Not mounted in switch box
PCB
ESIE09-08A
Appendix