JOHNSON CONTROLS
19
SECTION 2 - INSTALLATION
FORM 160.69-N3
ISSUE DATE: 10/30/2015
2
UNIT PIPING
Compressor lubricant piping and system external
piping are factory installed on all units shipped as-
sembled. On units shipped dismantled, the following
piping should be completed under the supervision of
the Johnson Controls representative: (1) the lubricant
piping to oil sump and oil evaporator and system oil
return connections using material furnished. See Field
Reassembly Instructions (Form 160.69-NM4).
CONTROL PANEL POSITIONING
The OptiView™ Control Center is placed in a position
above the evaporator for shipping. To move the control
center into position for operation, proceed as follows:
1. While supporting the control center, remove the
hardware between the support arms and the evap-
orator.
2. Swing the control center into a vertical position.
3. Slide the control center down the guide rails to the
proper position. Tighten securely.
4. Discard unused hardware.
FIGURE 11 - CONTROL PANEL POSITIONING
LD03826
CONTROL WIRING
On units shipped disassembled, after installation of the
control center, control wiring must be completed be-
tween unit components and control center, solid state
starter, or variable speed drive, when used, using wir-
ing harness furnished. Refer to Field Reassembly In-
structions (Form 160.69-NM4).
Field wiring connections for commonly encountered
control modifications (by others) if required, are shown
on Field Control Modifications (Form 160.69-PW2).
No deviations in unit wiring from that
shown on drawings furnished shall be
made without prior approval of the John-
son Controls representative.
POWER WIRING
Oil Pump – 3 Phase Starter
Separate wiring or a fused disconnect switch should
be supplied by the installer and connected to the vari-
able speed oil pump panel. DO NOT make final power
connections to the chiller until approved by a Johnson
Controls representative.
Remote Electro-Mechanical starters for
the chiller must be furnished in accor-
dance with the Remote Starter Speci-
cation (Form 160.69-PW4) to provide
the features necessary for the starter to
function properly with the YORK control
system.
Each chiller unit is furnished for a specific electrical
power supply as stamped on the Unit Data Plate, which
also details the motor connection diagrams.
To insure proper motor rotation the starter
power input and starter to motor con-
nections must be checked with a phase
sequence indicator in the presence of the
Johnson Controls representative.
DO NOT cut wires to nal length or make
nal connections to motor terminals or
starter power input terminals until ap-
proved by the Johnson Controls repre-
sentative.
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