Johnson Controls York YCRE 040, Manual

Page: 26 / 68

4.10 Power Wiring
The units are suitable for 380 or 400 V,
3 n earth, 50 Hz nominal
supplies only.
Minimum allowable 360 V.
Maximum allowable 440 V.
All electrical wiring should be carried out in accordance
with local regulations. Route properly sized cables to
cable entries on the control panel.
In accordance with EN 60204 it is the responsibility of
the user to install overcurrent protection devices
between the supply conductors and the power supply
terminals on the unit.
To ensure that no eddy currents are set up in the metal
gland plate the cables forming each 3 phase power
supply must enter via the same hole in the gland plate.
If separate entries for each cable forming the 3 phase
supplies are used, the metal gland plate must be
replaced by a non-metallic gland plate, with due regard
given to sealing the panel to IP2X.
All sources of supply to the unit must be
taken via a common point of isolation (not
supplied by York). Voltages from external
s o u r c e s m a y b e p r e s e n t . R e f e r t o
operating limits for unit max/min voltages.
Single Point Power Supply Wiring
All models require one field provided 400 V, 3Ø, + N
50 Hz + PE (Protected Earth) supply to the unit with
circuit protection.
Connect the 3 phase supply to the non-fused
disconnect switch located in the power panel.
Connect the earth wire to the main protective earth
terminal located in the power panel.
4.11 Control Wiring
Connect the interlock and control wiring as shown in the
unit connection diagram below.
4
-
8
035-21786-100 Rev. 1 (0909)
Lug Size Max. Cable Capacity
(mm
2
)
YCSE 040 M8 185
YCSE 050 M8 185
YCSE 060 M8 185
YCSE 080 M8 185
YCSE 100 M10 240
YCRE 040 M8 185
YCRE 050 M8 185
YCRE 060 M8 185
YCRE 080 M10 240
YCRE 100 M10 240