Location Of Controls (Ylha 50, 60 And 80) - York YLHA 50 User Manual

1.2.3 Location of controls (YLHA 50, 60 and 80)

Fan heat switch (TK1, TK2,
A
TK3)
Compressor 1 heat switch
A1
(A3)
Compressor 2 heat switch
A2
(A4)
B Fan ‑1 (M3, M4, M5)
C Flow switch (FS)
NTC water outlet sensor
D
(B2)
E Indoor heat exchanger
F NTC water inlet sensor (B1)
Parameter tables
The following tables show the parameters and their values, divided into groups:
Parameter level codes
D Direct
U User
S Super user
F Factory
Operating instructions µC2 (YLHA 50, 60 and 80)
G Pump
Low-pressure switch
H
(LP)
I1 Compressor 1 (M1)
I2 Compressor 2 (M2)
high-pressure switch
J
(HP)
K Four-way valve
Outdoor heat ex‐
L
changer
M Pressure sensor (B4)
R/W
R
User manual
Supervision variables
Read/write parameter
Read-only parameter
1
1.2
11