Daikin EWWD370H-XS, Инструкция по установке, эксплуатации и обслуживанию

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ENGLISH - ORIGINAL INSTRUCTIONS
This manual is an important supporting document for qualified personnel but it is not intended to replace such personnel.
Thank you for purchasing this chiller
READ THIS MANUAL CAREFULLY BEFORE
INSTALLING AND STARTING UP THE UNIT.
IMPROPER INSTALLATION COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE
OR OTHER DAMAGE TO THE EQUIPMENT OR
INJURE TO PEOPLE.
THE
UNIT MUST BE INSTALLED BY A
PROFESSIONAL OPERATOR/TECHNICIAN
UNIT STARTUP HAS TO BE PERFORMED BY
AUTHORIZED AND TRAINED PROFESSIONAL
ALL
ACTIVITIES HAVE TO BE PERFORMED
ACCORDING TO LOCAL LAWS AND REGULATION.
UNIT INSTALLATION AND START UP IS
ABSOLUTELY FORBIDDEN IF ALL INSTRUCTION
CONTAINED IN THIS MANUAL ARE NOT CLEAR.
IF CASE OF DOUBT CONTACT THE
MANUFACTURER REPRESENTATIVE FOR ADVICE
AND INFORMATION.
Description
The unit you
bought is a “water cooled chiller”, a machine
designed to cool water (or water-glycol mixture) within the
limits herebelow reported. The unit operation is based on
steam compression, condensation and evaporation according
to reverse Carnot cycle.The main components are:
-
Screw compressor to rise the refrigerant steam pressure
from evaporation pressure to condensation pressure
- Evaporator, where the low pressure refrigerant liquid
evaporates cooling the water.
- Condenser, where high pressure steam condensates
rejecting heat removed from the chilled water in the water
thanks to a water cooled heat exchanger.
- Expansion valve to reduce the pressure of condensed
liquid from condensation pressure to evaporation
pressure.
General Information
All units are delivered with wiring diagrams , certified
drawings, nameplate ; and DOC (Declaration Of
Conformity) ; these documents show all technical data
for the unit you have bought and they MUST BE
CONSIDERED ESSENTIAL DOCUMENTS OF THIS
MANUAL.
In case of any discrepancy between this manual and the
equipment’s documents please refer to on board documents.
In case of any doubt contact the manufacturer representative.
For other data information of this family of unit, see the Product
Manual.
The purpose of this manual is to allow the installer and the
qualified operator to ensure proper installation, commissioning
and maintenance of the unit, without any risk to people,
animals and/or objects.
Receiving the unit
The unit must be inspected for any possible damage
immediately upon reaching final place of installation. All
components described in the delivery note must be inspected
and checked.
Should the unit be damaged, do not remove the damaged
material and immediately report the damage to the
transportation company and request they inspect the unit.
Immediately report the damage to the manufacturer
representative, a set of photographs is helpful in recognizing
responsibility.
Damage must not be repaired before the inspection of the
transportation company representative.
Before installing the unit, check that the model and power
supply voltage shown on the nameplate are correct.
Responsibility for any damage after acceptance of the unit
cannot be attributed to the manufacturer.
Operating limits
Storing
If the chillers have to be stored prior the installation, the
following warnings have to be observed.
Store the chillers inside, at ambient temperatures lower than
50°C.
Do not remove the protective plastic.
Do not leave the unit exposed to the elements.
Do not expose the chillers to direct sun light.
Keep the chillers far from heat sources.
Storing below the minimum temperature may cause damage to
components. Storing above the maximum temperature causes
opening of safety valves. Storing in condensing atmosphere
may damage electronic components.
Operation
These units are designed to operate with an evaporator outlet
water temperature between -8°C and 20°C and the condenser
inlet water temperature between 20°C and 50°C or 20°C and
60°C if the unit installed a "High Temperature" kit. However,
the minimum temperature difference between inlet and water
outlet from the evaporator to the condenser must not be less
than 17°C. In case of lower temperature differences (down to
10°C), the compressors will operate at part load condition.
Operation out of the mentioned limits may damage the unit.
In case of doubts contact manufacturer representative
.