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INTRODUCTION
To ensure warranty coverage, this
equipment must be commissioned
and serviced by an authorized John-
son Controls service mechanic or a
qualified service person experienced in
chiller installation. Installation must
comply with all applicable codes, par-
ticularly in regard to electrical wiring
and other safety elements such as re-
lief valves, HP cutout settings, design
working pressures, and ventilation re-
quirements consistent with the amount
and type of refrigerant charge.
Lethal voltages exist within the control
panels. Before servicing, open and tag
all disconnect switches.
INSTALLATION CHECKLIST
The following items, 1 through 5, must be checked
before placing the units in operation.
1. Inspect the unit for shipping damage.
2. Rig unit using spreader bars.
3. Open the unit only to install water piping system.
Do not remove protective covers from water con-
nections until piping is ready for attachment. Check
water piping to ensure cleanliness.
4. Pipe unit using good piping practice (see ASHRAE
handbook section 215 and 195).
5. Check to see that the unit is installed and operated
within limitations (Refer to LIMITATIONS).
The following pages outline detailed procedures to be
followed to install and start-up the chiller.
HANDLING
These units are shipped as completely assembled units
containing full operating charge, and care should be
taken to avoid damage due to rough handling.
The unit should be lifted by inserting
hooks through the holes provided in
unit base rails. Spreader bars should
be used to avoid crushing the unit
frame rails with the lifting chains. See
below.
10
SECTION 1 - INSTALLATION
INSPECTION
Immediately upon receiving the unit, it should be in-
spected for possible damage which may have occurred
during transit. If damage is evident, it should be noted
in the carrier's freight bill. A written request for inspec-
tion by the carrier's agent should be made at once. See
"Instruction" manual, Form 50.15-NM for more infor-
mation and details.
LOCATION AND CLEARANCES
These units are designed for outdoor installations on
ground level, rooftop, or beside a building. Location
should be selected for minimum sun exposure and to
insure adequate supply of fresh air for the condenser.
The units must be installed with sufficient clearances for
air entrance to the condenser coil, for air discharge away
from the condenser, and for servicing access.
In installations where winter operation is intended and
snow accumulations are expected, additional height must
be provided to ensure normal condenser air flow.
Clearances are listed under "Notes" in the "DIMEN-
SIONS" section.
FORM 150.62-NM9 (709)
29224(RIG)A
JOHNSON CONTROLS
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