a
Green wire
FSC
Fan speed controller
b
White wire
HTP
Heater thermal protection
c
Black wire
HP
High-pressure switch (41 bar)
A
Electronic control
K2
Auxiliary heater contactor
B
The components in the box are standard acces‐
sories supplied by the manufacturer
K3
Pump contactor (TC units)
C
The components in the box are not supplied by
the manufacturer
LAK
Presostatic low ambient kit accessory
D, M1
Compressor
LP
Low pressure switch (2,5 bar)
E, AH
Auxiliary heater
L1
Line phase
F, M4
Pump (MC units)
M2, M3
Fan motor
H
Install on site
MS
Main switch
I
10 mm
2
Cu
N
Neutral
AH
Auxiliary heater
Q1
Auxiliary heater thermal magnetic protector
B1
Water inlet temperature probe (NTC)
Q2
General / compressor thermal magnetic protec‐
tor
B2
Water outlet temperature probe (NTC)
Q3
General thermal magnetic protector, 230V / fan /
pump / crankcase heater
B3
Temperature probe *(2)
R00
Remote ON / OFF switch
B4
*(3)
RCH
Remote COOL / HEAT switch
C2, C3
Fan condenser
SS
Gentle starter
F1
Electronic control protection fuse / 24 V [315 mA
SLOW] switching
T
Transformer 230 / 24V 20 VA
F2
Fan speed controller fuse
V4V, G
4-way valves (on YLHA only)
FS
Water flow switch (MC units)
Electric circuit diagrams
2
Electric circuit diagram YLCA PLUS 12 MCS (230.1.50) SOFT START
2.8
53
Summary of Contents for Ylca 12
Page 4: ...1 Installation manual...
Page 40: ...2 Electric circuit diagrams...
