D-EIMWC00804-14EN
Centrifugal Chillers
11
Maximum entering condenser water temperature, startup: design plus 5 degrees F (2.7 degrees
C)
Maximum entering condenser water temperature, operating: job specific design temperature
Minimum entering condenser water temperature, operating: see page 12.
Minimum leaving chilled water temperature: 38
°
F (3.3
°
C)
Minimum leaving chilled fluid temperature with correct anti-freeze fluid: 15
°
F (9.4
°
C)
Maximum entering chilled water temperature, operating: 90
°
F (32.2
°
C)
Maximum oil cooler/VFD entering temperature: 90
°
F (32.2
°
C)
Minimum oil cooler/VFD entering temperature: 42
°
F (5.6
°
C)
Vibration Pads
The shipped-loose neoprene vibration pads should be located under the corners of the unit
(unless the job specifications state otherwise). They are installed to be flush with the sides and
outside edge of the feet. Most DWSC units have six mounting feet although only the outer
four are required. Six pads are shipped and the installer can place pads under the middle feet if
desired.
Mounting
Make sure that the floor or structural support is adequate to support the full operating weight of
the complete unit.
It is not necessary to bolt the unit to the mounting slab or framework; but should this be
desirable, 1 1/8" (28.5 mm) mounting holes are provided in the unit support at the four corners.
Note: Units are shipped with refrigerant and oil valves closed to isolate these fluids for
shipment. Valves must remain closed until start-up by the Daikin technician.
Nameplates
There are several identification nameplates on the chiller:
•
The unit nameplate is located on the side of the Unit Control Panel. It has a Style No.
XXXX and Serial No. XXXX, both are unique to the unit and will identify it. These
numbers should be used to identify the unit for service, parts, or warranty questions. This
plate also has the unit refrigerant charge.
•
Vessel nameplates are located on the evaporator and condenser. Along with other
information, they have a National Board Number (NB) and a serial number, either of which
identify the vessel (but not the entire unit).
•
A compressor nameplate is located on the compressor itself and contains identification
numbers.
Safety
The machine must be firmly secured to the ground.
It is essential to observe the following instructions:
- The machine must be raised only by the lifting points. Only these points can support the whole weight of
the unit.
- Do not allow unauthorised and/or unqualified personnel to access the
machine.
- It is forbidden to access the electrical components without having opened the
machine's general disconnecting switch and switched off the power supply.
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