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Daikin EWWH460DZXSA1 Инструкция по монтажу онлайн [8/32] 533223
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D-EIMWC01405-18EN- 8/32
Refrigerant
Auto ignition temperature
Maximum surface temperature
R1234ze
368 °C
294 °C
Machinery rooms shall have doors opening outward and sufficient in number to ensure freedom for persons to
escape in an emergency; the doors shall be tight fitting, self-closing and so designed that they can be opened
from inside (antipanic system).
Special machinery rooms where the refrigerant charge is above the practical limit for the volume of the room
shall have a door that either opens directly to the outside air or through a dedicated vestibule equipped with
self-closing, tight-fitting doors.
The ventilation of machinery rooms shall be sufficient both for normal operating conditions and emergencies.
Ventilation for normal operating conditions shall be in accordance with national regulations.
The emergency mechanical ventilation system shall be activated by a detector(s), located in the machinery
room.
o This ventilation system shall be:
independent of any other ventilation system on the site.
provided with two independent emergency controls one located outside the machinery room,
and the other inside.
o The emergency exhaust ventilation fan shall:
Be either in the air flow with the motor outside the airflow, or rated for hazardous areas
(according to the assessment).
Be located to avoid pressurization of the exhaust ductwork in the machinery room.
not cause sparks to occur if it contacts the duct material.
o Airflow of the emergency mechanical ventilation shall be at least
𝑉 = 0,014 × 𝑚
2
3
⁄
where
V
is the air flow rate in m
3
/s;
m
is the mass of refrigerant charge, in kg, in the refrigerating system with the largest charge, any
part of which is located in the machinery room;
0,014
is a conversion factor.
o Mechanical ventilation shall be operated continuously or shall be switched on by the detector.
Detector shall automatically activate an alarm, start mechanical ventilation and stop the system when it triggers.
The location of detectors shall be chosen in relation to the refrigerant and they shall be located where the
refrigerant from the leak will concentrate.
The positioning of the detector shall be done with due consideration of local airflow patterns, accounting for
location sources of ventilation and louvers. Consideration shall also be given to the possibility of mechanical
damage or contamination.
At least one detector shall be installed in each machinery room or the occupied space being considered and/or
at the lowest underground room for refrigerants heavier than air and at the highest point for refrigerants lighter
than air.
Detectors shall be continuously monitored for functioning. In the case of a detector failure, the emergency
sequence should be activated as if refrigerant had been detected.
The pre-set value for the refrigerant detector at 30 °C or 0 °C, whichever is more critical, shall be set to 25 % of
the LFL. The detector shall continue to activate at higher concentrations.
Refrigerant
LFL
Pre-set alarm
R1234ze
0,303 kg/m
3
0,07575 kg/m
3
16500 ppm
All electrical equipment (not only the refrigerating system) shall be selected to be suitable for use in the zones
identified in the risk assessment. Electrical equipment shall be deemed to comply with the requirements if the
electrical supply is isolated when the refrigerant concentration reaches 25 % of the lower flammable limit or
less.
Machinery rooms or special machinery rooms shall be clearly marked as such on the entrances to the room,
together with warning notices indicating that unauthorized persons shall not enter and that smoking, naked light
or flames are prohibited. The notices shall also state that, in the event of an emergency, only authorized
persons conversant with emergency procedures shall decide whether to enter the machinery room. Additionally,
warning notices shall be displayed prohibiting unauthorized operation of the system
The owner / operator shall keep an updated logbook of the refrigerating system.
The optional leak detector supplied by DAE with the chiller should be used exclusively to check
refrigerant leakage from the chiller itself
Содержание
- Cooling capacity from 320 to 1480 kw 1
- D eimwc01405 18_01en 1
- Ewwd dz 1
- Ewwh dz 1
- Hz refrigerant hfc r134a r1234ze e 1
- Installation maintenance and operating manual 1
- Water cooled oil free centrifugal chillers 1
- Contents 2
- D eimwc01405 18en 2 32 2
- Downloaded from www manualslib com manuals search engine 2
- Figures 2
- Downloaded from www manualslib com manuals search engine 3
- D eimwc01405 18en 4 32 4
- Downloaded from www manualslib com manuals search engine 4
- Fig 2 dual compressor unit component descriptions 4
- Application 6
- General description 6
- Information about r1234ze e 6
- Introduction 6
- Installation safety 7
- Installation 9
- Receiving and handling 9
- Storage 9
- Lifting instructions 11
- Positioning and assembly 11
- Shock absorbers 11
- Anchoring 12
- Water pipes 12
- Water treatment 13
- Minimum water content in the system 14
- Temperature limits and water flow 14
- Condenser protection and design considerations 15
- Evaporator frost protection 15
- Chilled water control sensor 16
- 386 392 17
- 392 387 x 100 17
- Control circuit 17
- Electrical connections 17
- Open the isolation and or shut off valves 17
- Phase imbalance 17
- Safety valve 17
- Operation 19
- Operator s responsibilities 19
- Unit description 19
- Compressor lead lag 20
- High condensing pressure control 20
- Regulation type 20
- Safeties for each cooling compressor 20
- System safeties 20
- Maintenance 21
- Pressure temperature table 22
- Routine maintenance 23
- Cleaning and storage 27
- Seasonal maintenance 27
- Service schedule 27
- Maintenance schedule 28
- All installation work must be completed as required above the plant inspected and unit ready for operations if plant conditions do not allow the unit to operate within the limits set in the catalogue the unit cannot be started if the above conditions cannot be guaranteed the customer is liable for the daikin applied commissioning approval 29
- Checks before first start up 29
- Daikin unit serial no ________________________________________________________________ daikin unit serial no ________________________________________________________________ 29
- Date __________________________________ 29
- Job name _________________________________________________________________________ job name _________________________________________________________________________ 29
- Name _________________________________ 29
- Notes this list must be completed and sent to the local daikin service department at least two 29
- Signature _________________________________ signature _________________________________ 29
- Site engineer 29
- Unit model no s ___________________________________________________________________ unit model no s ___________________________________________________________________ 29
- Warning the unit should never be operated before daikin applied authorised start up failure to observe this warning could cause serious equipment damages and void the warranty 29
- Weeks before the start 29
- Factory and field charged units instructions 30
- Important information on used refrigerant 30
- Demolition and disposal 31
- Duration 31
- Periodic checks and commissioning of pressure vessels 31
- Daikin applied europe s p a 32
- The present publication is drawn up by of information only and does not constitute an offer binding upon daikin applied europe s p a daikin applied europe s p a has compiled the content to the best of their knowledge refer to the data communicated at the time of the order all the data and specifications contained herein are liable to change without notice refer to the data communicated at the time of the order daikin applied europe s p a cannot be held liable for direct or indirect damage in the broadest sense of the term arising from or related to the use and or interpretation of this publication all content is copyrighted by daikin applied europe s p a 32
- Via piani di santa maria 72 00072 ariccia rome italy tel 39 06 93 73 11 fax 39 06 93 74 014 32
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