Installation manual

IM 1029-2 Magnitude™ Frictionless Centrifugal Chillers – Model WMC 17
Drawing Notes
NOTES:
1. All dimensions are in inches and [millimeters] unless noted otherwise.
2. Final connections must allow for +/- 0.5 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. N
umber of relief valves is 1 per evaporator and 2 per condenser.
4. 0.375 inch [9 mm] suction nozzle relief valve (dual compressor units only) must be piped per
ANSI / ASHRAE 15.
5. Minimum clearances are shown below.
Table 4 Minimum Clearance Requirements
WMC Model
One End
in. (mm)
Opposite End
in. (mm)
Sides & Top
in. (mm)
Electric Panels
in. (mm)
145S, 145D
250D
112 (2845) 36 (914) 36 (914) 48 (1219)
150D, 290D
400D
147 (3734) 36 (914) 36 (914) 48 (1219)
NOTES:
a. The “One End” clearance is for tube removal and can be provided by a door or window.
b.
L
ocal codes may require greater than 48 inches for electric panel clearance.
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. The water connection shown is for the default configuration; your unit may be configured differently
.
O
rientation (left/right) is determined while facing the control panel. Consult the Item Summary shee
t
f
or exact configuration. Unit shown has standard right-hand water connections. Left-ha
nd
connections are available for either vessel. For left hand evaporator the inlet and outlet nozzles are
reversed. ANSI-flanged connections are available upon request. When using ANSI-flange
d
c
onnections 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 6.00 inches [152 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. All power wiring is brought to the top of the power panel (Front End Box). Control wiring is brought
to the (Unit Control Box).
15. The unit is shipped with an operating charge of refrigerant.
16. Optional marine water box connections are available upon request.
Harmonic Filter Dimensions
Contact the local Daikin sales office for harmonic filter dimensions for specific applications.