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a
Green wire
F2
Fan speed controller fuse
b
White wire
FS
Water flow switch (MC units)
c
Black wire
FSC
Fan speed controller
A
Electronic control
HTP
Heater thermal protection
B
The components in the box are standard acces‐
sories supplied by the manufacturer
HP
High-pressure switch (41 bar)
C
The components in the box are not supplied by
the manufacturer
K2
Auxiliary heater contactor
D, M1
Compressor
LAK
Presostatic Low Ambient Kit accessory
E, AH
Auxiliary heater
LP
Low pressure switch (2,5 bar)
F, M3
Pump (MC units)
L1
Line phase
H
Install on site
M2
Fan motor
I
“B” mm
2
Cu
MS
Main switch
AH
Auxiliary heater
N
Neutral
B1
Water inlet temperature probe (NTC)
Q1
Thermal magnetic protector
B2
Water outlet temperature probe (NTC)
Q2
General / compressor thermal magnetic protec‐
tor
B3
Temperature probe *(2)
Q3
General thermal magnetic protector, 230V / fan /
pump / crankcase heater
B4
*(3)
R00
Remote ON / OFF switch
C1
Compressor condenser
RCH
Remote COOL / HEAT switch
C2
Fan condenser
T
Transformer 230 / 24V 20 VA
F1
Electronic control protection fuse / 24 V [315 mA
SLOW] switching
V4V, G
4-way valves (on YLHA only)
Electric circuit diagrams
2
Electric circuit diagram YLCA PLUS 5 ÷ 9 MCS (230.1.50) SOFT START
2.7
79
Summary of Contents for YLCA
Page 4: ...1 Technical Information ...
Page 68: ...2 Electric circuit diagrams ...