Wiring Diagrams - York YLCA Technical Information

1.11.5 Wiring diagrams

Electrical installation YLCA / YLHA PLUS 5 to 27
A
C
A YLCA terminal strip
B Outdoor terminal strip
C Main switch
Supply (200 ‑ 1+ N ‑ ph
a1 ‑ 50 Hz)
(single-phase units)
Supply (400 ‑ 3 + N ‑
a3 ph ‑ 50 Hz)
(three-phase units)
Terminal strips
□
YLCA / YLHA PLUS
Ø Outdoor unit terminals
○ 230 Vac terminal
C A U T I O N
The cable used for the unit power supply must be H05 RN ‑ F
Instructions for installation and connection of the unit 1.11
B
a1
a3
b
c
d
e
f
Flow Switch (only in
b units without hydraulic
group)
General alarm (voltage-
free inverter contact
c
max. 2A resist. A 230
Vac)
Remote ON / OFF
d
switch
Remote COOL / HEAT
switch
e CLOSED = COOL
OPEN = HEAT
(YLHA units only)
f Auxiliary heater
Technical Information
Voltage-free terminal strip contact
◊
YLCA / YLHA PLUS
- ‑ ‑ Client's electrical installation
1
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