Daikin WMC Specifications download pdf (Page 14)

14 Centrifugal Chillers IMM WMC-2

Drawing Notes

NOTES:

1. All dimensions are in Inches and [Millimeters] unless noted otherwise.

2. Final connections must allow for .500 inch +/- [12.7mm] manufacturing tolerances.

3. 1.00-inch FPT [25.4 mm] evaporator and condenser relief valves must be piped per ANSI / ASHRAE 15.

Number of relief valves is 1 per evaporator and 2 per condenser.

4. .375 inch [9 mm] suction nozzle relief valve must be piped per ANSI / ASHRAE 15.

5. Clearances:

Ends, 108 inches (2743 mm) on WMC 145, WMC 150 with 9 foot tubes, and WMC 250

144 inches (3658 mm) on WMC 150 with 12 foot tubes and WMC 290

plus 36 inches (910) is required at either end of the tube sheet for tube maintenance. If

clearance is at the connection end, do not bloct tube access with piping, pumps, etc.

Sides 36 inches (914 mm) is recommended on all other sides and top for service clearance.

Electric Panels Most codes require 48 inches (1219 mm) clearance in front of the control boxes and electrical

panels.

6. 3.25-inch [83mm] diameter lifting holes are provided. See installation manual for lifting instructions.

7. All water connections are given in standard U.S. pipe sizes. Standard connections are suitable for welding or

victaulic couplings.

8. Unit shown has standard left-hand water connections. Right-hand connections are available for either vessel. For

right hand evaporator the inlet and outlet nozzles are reversed. ANSI-flanged connections are available upon

request. When using ANSI-flanged connections add .500 inch [13 mm] to each flanged end.

9. Dimensions shown are for units (evaporator / condenser) with standard design pressures. The refrigerant side

design pressure is 200 PSI {1380 kPa} and the waterside design pressure is 150 PSI {1034 kPa}. Consult the

factory for unit dimensions with higher design pressures.

10. The unit vibration isolator pads are provided for field installation. When fully loaded - .250 inches [6 mm] thick.

11. These values are for units with standard wall thickness copper tubing only.

12. The shipping skid, when used, adds 4.00 inches [105 mm] to the overall unit height.

13. If main power wiring is brought up through the floor, this wiring must be outside the envelope of the unit.

14. Typical wiring connections to the compressor control box are multi-power wiring into the top of each box.

The unit control box has a lower section that contains a disconnect switch when the optional single-point

connection is selected and is the landing point for the power connection. Otherwise it is empty.

15. The unit is shipped with an operating charge of refrigerant.

16. Optional marine water box connections are available upon request.

Table 3, Overall Dimensions, 2-Pass Vessels

WMC 145S, WMC 145D WMC 150 WMC 250 WMC 290

In. (mm)

Same End Opp. End Same End Opp. End Same End Opp. End Same End Opp. End

Length

135 (3429) 141 (3581) 171 (4343) 177 (4496) 135 (3429)

141 (3581) 171 (4343) 177 (4496)

Width

39 (991) 39 (991) 35 (889) 35 (889) 44 (1117) 44 (1117) 44 (1117) 44 (1117)

Height

80 (2032) 80 (2032) 80 (2032) 80 (2032) 83 (2108) 83 (2108) 83 (2108) 83 (2108)

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 45 46

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Daikin WMC Specifications Page 14

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