City water should be piped to an open sight drain.
If water from the machine chilled water circuit is used for oil cooling, it should enter the oil
cooler inlet from the entering water line of the machine cooler. See
Figure 12
. Water leaving the
oil cooler should connect to the leaving water line of the machine cooler to a point downstream
from the chilled water sensor, so that oil cooler leaving water temperature does not affect the
sensor readings. See
Figure 12
.
Locate the oil cooler leaving water connection at some distance from any chilled water
temperature indicator. On single-pass machines, water leaving the oil cooler should be
connected into the suction side of the chilled water pump so that adequate pressure drop is
assured for oil cooling.
The nominal conditions for oil cooler water flow are:
Flow rate . . . . . . . . . . . . . . . . . . . 30 gpm (114 L/s)
Leaving temperature (max) . . . . . 85 F to 100 F (29 to 39 C)
Pressure drop at oil cooler . . . . . . 10.5 ft (3.2 m)
Max differential pressure across
closed solenoid valve . . . . . . . . . 150 psid (1029 kPa)
The oil cooler water connections at the plug valve are 1-in. FPT.
Click here for Figure 12 — Water Piping, Oil Cooler to Chilled Water Circuit
(Typical)
Содержание HFC-134a
Страница 30: ...Click here for Figure 20 Pumpout Unit Controls Click here for Figure 21 Pumpout Unit Wiring Schematic ...
Страница 40: ...Figure 1 Model Number Identification ...
Страница 41: ...Figure 2 Typical 19FA Installation 1400 2200 Tons 4922 7735 kW ...
Страница 42: ...Figure 3 Machine Rigging Guide 3 Indicates center of gravity ...
Страница 44: ...Figure 5 Machine Footprint ...
Страница 45: ...Figure 6 Machine Contact Surfaces with Anchor Bolts ...
Страница 51: ...Figure 12 Water Piping Oil Cooler to Chilled Water Circuit Typical ...
Страница 52: ...Figure 13 Pumpout Unit ...
Страница 53: ...Figure 14 Typical 19FA Relief Valve Tree for Storage Vessel ...
Страница 54: ...Figure 15 Compressor Terminal Arrangement 18 Lead Rear Inlet ...
Страница 55: ...Figure 16 Compressor Terminal Arrangement 18 Lead Top Inlet ...
Страница 56: ...Figure 17 Compressor Terminal Arrangement 18 Lead Side Inlet ...
Страница 57: ...Figure 18 Oil Pump Wiring ...
Страница 58: ...Figure 19 Oil Heater and Control Power Wiring ...
Страница 59: ...Figure 20 Pumpout Unit Controls ...
Страница 60: ...Figure 21 Pumpout Unit Wiring Schematic ...
Страница 61: ...Figure 22 Carrier Comfort Network Communication Bus Wiring ...
Страница 62: ...Figure 23 COMM1 CCN Communication Wiring For Multiple Chillers Typical ...
Страница 63: ...Figure 24 Typical 19FA With Free Standing Starter ...
Страница 64: ...Figure 25 Field Wiring Low Voltage Motors of PIC Product Integrated Control Free Standing Starter ...
Страница 65: ...Figure 26 19FA Insulation ...