York YHAU-CE-JE Series, Установка, эксплуатация и обслуживание, Страница: 25 / 136

JOHNSON CONTROLS
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SECTION 3 – HANDLING, STORAGE, INSTALLATION AND REASSEMBLY
FORM 155.33-ICOM2.EN.GB
ISSUE DATE:12/4/2017
3
When installing the unit indoors, have a specialized
company provide a suitable flue or smokestack, as
well as air supply and exhaust equipment. Insufficient
air supply or improper exhaust can cause oxygen star-
vation and a fire. The interlock of the control panel
should be set up with a supply or exhaust fan to create
a proper draft.
Do not install a chimney near the air
supply.
ELECTRICAL
The electrical work must be performed in accordance
with the wiring diagrams, delivery specifications, and
technical standards for electrical equipment found in
SECTION 4 - TECHNICAL DATA . Use the speci-
fied cables to complete the wiring. Be sure to fasten
them tightly to the appropriate terminals. Loose fit-
ting cables can cause the terminals to heat up. A fire
or electrical shock may occur as a result. Electrical
work must be supervised or completed by a Johnson
Controls Service Representative.
A ground fault (earth leakage) circuit
breaker is NOT installed for this chiller-
-heater unit. Be sure to install an adequate
ground fault circuit breaker at the pri-
mary side of the chiller-heater unit.
PRECAUTIONS FOR USE
Ventilate the storage area as much as possible to keep
the humidity low. Avoid storing the unit in an area
where the humidity is 95%RH or higher, and the tem-
perature is 40°C (104 °F) or higher. For more informa-
tion about long term-storage, refer to Long-term Stor-
age Requirements (Form 50.20-NM1) and Long-term
Storage Checklist (Form 50.20-CL4).
Silica gel may be used on a temporary basis to de-
humidify the control panel. Once the moisture is ab-
sorbed, be sure to remove it. If you do not, the silica gel
may corrode the electrical parts of the control panel.
Do not allow negative pressure or any devices that cre-
ate negative pressure to operate in the area around the
chiller-heater. This may cause an incomplete air purge.
Gas inhalation and hypoxia may result.
To prevent injuries, do not put a finger, a rod, or any-
thing else into any rotary parts of the vacuum pump.
A caution label for a rotating object is pasted around
the belt cover of the vacuum pump. When you replace
the oil in the vacuum pump, belt, or perform mainte-
nance work, stop the chiller-heater. Be sure to turn off
the main circuit breaker (MCB1) and lockout or tagout
the unit. If you do not, the vacuum pump could start
abruptly and cause injury or damage to the unit.
Do not place anything heavy on the machine or its con-
trol panel. It may fall and injure someone.
Do not climb the unit without safety harnessing.
Contact your local Johnson Controls service office
for inspection and maintenance of the unit. Improper
inspection and maintenance can not only cause a ma-
chine problem but also injure workers.
Keep the chilled / hot water, cooling water, and waste
hot water under the maximum usage pressure. If they
exceed the maximum usage pressure, pipes may spout
or leak and cause an electric leak or burn.
Do not change the set values of the safety devices and
protective devices. Operation with incorrect set values
can cause problems.
In the event that the circuit breaker or disconnect
switch activates, eliminate the cause of the problem
before restarting the unit. See SECTION 8 – TROU-
BLESHOOTING
.
The shut off valve for the pressure release valve must
constantly remain open. It may only be closed when
servicing the pressure relief valve. The unit must never
operate with this shut off valve closed.
Do not touch any part or component displaying a high
tem perature caution label while the machine is opera-
ting. This includes the control panel, solution pump,
vacuum pump and any piping going to or from the so-
lution and vacuum pump.