Johnson Controls YORK YCAL0041EC, Установка, эксплуатация и обслуживание, Страница: 32 / 168

JOHNSON CONTROLS
32
FORM 150.66-NM1 (708)
Installation
LD10951
To ensure warranty coverage, this
equipment must be commissioned
and serviced by an authorized YORK
service mechanic or a qualifi ed service
person experienced in chiller instal-
lation. Installation must comply with
all applicable codes, particularly in
regard to electrical wiring and other
safety elements such as relief valves,
HP cutout settings, design working
pressures, and ventilation require-
ments 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.
SECTION 4 - INSTALLATION
INSPECTION
Immediately upon receiving the unit, it should be
inspected 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 inspection by the carrier’s agent should be made at
once.
See “Instruction” manual, Form 50.15-NM for
more information 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 suffi cient 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 fl ow.
C l e a r a n c e s a r e l i s t e d u n d e r “ N o t e s ” i n t h e
“DIMENSIONS” section.
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).