Yvwe And Yvwh Panel Installation; Yews And Ygwe Single Panel Installation; Figure 18 - Sc-Eq Installed In Yvwe And Yvwh; Figure 19 - Sc-Eq To Yvwe And Yvwh Connections - Johnson Controls York Smart Equipment SC-EQUIP Installation Instructions Manual

SECTION 2 - INSTALLATION

YVWE AND YVWH PANEL INSTALLATION

To install the panel on YVWE or YVWH chillers, com-
plete the following steps:
1. Install the SC-EQ on the door inside of the control
panel using M3 screws. See Figure 18.
2. Connect the appropriate communications cable
from Port J8 (RS-485) on the SC-EQ to XTB3,
which is factory-connected to the control board.
Ensure all wires are correct. See Figure 19.
3. Check for stray wire strands, which could cause
short circuits. Ensure all components are secure.
4. Connect the BAS network to J12 (RS-485) on the
SC-EQ board.
5. Connect the appropriate length of power harness
from J10 on the SC-EQ to XTB3. See Figure 19.
The power harness is included in the kit.
6. Set the required BAS network address for the SC-
EQ using the SW-1 MAC address switches.
When the SC-EQ and the control board are powered
up, the SC-EQ automatically sets itself to the BAS pro-
tocol, baud rate, and chiller model. This may take up
to 120 s.
SC-AP
HMI
GROUNDING
SC-EQ
SCREW
FIGURE 18 - SC-EQ INSTALLED IN YVWE AND
YVWH
20
FIGURE 19 - SC-EQ TO YVWE AND YVWH
CONNECTIONS
YEWS AND YGWE SINGLE PANEL
INSTALLATION
To install the panel on YEWS or YGWE chillers, com-
plete the following steps:
CONTROL
BOARD
XTB3
LD29250
When the SC-EQ and the control board are powered
up, the SC-EQ automatically sets itself to the BAS pro-
tocol, baud rate, and chiller model. This may take up
to 120 s.
1. Install the switch power supply to the DIN35 lead
rail. See Figure 20, Figure 21, or Figure 22.
2. Install the SC-EQ on the standoffs of the panel
using M3 screws. See Figure 20 for YEWS and
YGWE Single, Figure 21 for YEWS Tandem, or
Figure 22 for YGWE Tandem.
3. Connect the appropriate communications cable
from Port J8 (RS-485) on the SC-EQ to XTB2
(A4/B4) in the panel. Ensure all wires are correct.
This step is only for YEWS and YGWE Single.
See Figure 23.
4. Connect the appropriate communications cable
from the XS-09 display (RS485-1, only for the
unit using York-003 board) or IPU3 control board
(TB4:A4/B4, which is factory-connected) to
XTB2 (A4/B4) in the panel. Ensure all wires are
correct. See Figure 20, Figure 21, or Figure 22.
5. Check for stray wire strands, which could cause
short circuits. Ensure all components are secure.
6. Connect the BAS network to J12 (RS-485) on the
SC-EQ board.
7. Connect the appropriate length of power harness
from J9 on the SC-EQ to 12 VDC terminals of
switch power supply. See Figure 20, Figure 21, or
Figure 22 and Figure 23.
8. Set the required BAS network address for the SC-
EQ using the SW-1 MAC address switches.
FORM 450.50-N1
ISSUE DATE: 08/19/2019
LD29251
JOHNSON CONTROLS