Explanation
Scale length of
conductor (mm)
TypeDesigna-
tion
-Cable glandUB1,2,3
18Terminal block, incoming
mains supply
X1
14Terminal block, L8 SPLIT/L12
SPLIT
X2
12Terminal block, communica-
tion, L8 SPLIT/L12 SPLIT
9Terminal block, external addi-
tion
X3
12Terminal block, external im-
mersion heater and temperat-
ure limiter/thermostat emer-
gency mode FD1-BT30.
X4
12Terminal blockX100
9Terminal blockX101
-SwitchSF1
-Miniature circuit breaker,
control system
FA1
-Miniature circuit breaker,
outdoor unit
FA2
-Miniature circuit breaker, ex-
ternal immersion heater
FA3
SPLIT34
For the Installer
Electrical installation