York YLCD Series User Manual page 13

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