Components; Components: Switch Box (Indoor Unit) - Daikin EGSQH10S18AA9W Installer's Reference Manual

14.3

Components

14.3.1

Components: Switch box (indoor unit)

j m q
A4P
a
A1P
n
A8P
X5M
i
X6YB
X6YA
A9P
k
l
A10P
s
a Main PCB (water) A1P
b Backup heater thermal protector Q1L
c Transformer TR1
d Backup heater contactors K1M, K2M and K5M
e Backup heater circuit breaker F1B
f Connectors X6YA/X6YB/X6Y
g Terminal block X1M (power supply)
h Terminal block X2M (high voltage)
i Terminal block X5M (low voltage)
j Cable tie mountings
k Main PCB (refrigerant, brine) A9P
l Main PCB (inverter) A10P
m Digital I/O PCB A4P (optional)
n Demand PCB A8P (optional)
o Brine pump contactor K6M. Note: Only 4 of the 5 connection points
are used.
p Reactors
q PCB fuse A1P (FU1)
r PCB fuse A9P (F1U, F2U)
s PCB fuse A10P (F1U)
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351748-1D – 2016.02
h
d
c
d
K5M
o
b
Q1L
X2M
f
X6Y F1B
e
g
X1M
p
p
p
j
j
r
r
j
14 Technical data
Installer reference guide
69