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General diagram YLCD 40 and 70
A B C D
F
G
H
I
E
A
Compressor 2
B2
Water outlet temperature probe (Antifreeze pro‐
tection)
B
Pump
B3
Outdoor temperature probe (Dynamic set point)
C
Heater
B4
Ratiometric pressure probe (Fan speed and de‐
frost control)
D
Compressor 1
ID1
Phase detector/General stop
E
Alarm
ID2
Water flow switch
F
230 / 24 transformer
ID3
High-pressure switch
G
Fan control
ID4
Low-pressure switch
H
Communication
ID5
Remote ON / OFF
I
Programmable key
N
Neutral
B1
Water inlet temperature probe (Control set point)
L
Phase
User manual
1
Operating instructions
1.5
11
Summary of Contents for YLCD Series
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