1. If relief devices piping is manifolded, the cross-sectional area of the relief pipe must at least
equal the sum of the areas required for individual relief pipes.
2. Provide a pipe plug near outlet side of each relief device for leak testing. Provide pipe
fittings that allow vent piping to be disconnected periodically for inspection of valve
mechanism.
3. Piping to relief devices must not apply stress to the device. Adequately support piping. A
length of flexible tubing or piping near the device is essential on spring-isolated machines.
4. Cover the outdoor vent with a rain cap and place a condensation drain at the low point in
the vent piping to prevent water build-up on the atmospheric side of the relief device.
Refrigerant discharged into confined spaces can displace oxygen and cause
asphyxiation.
DANGER
!
DANGER
Click here for Table 2 — Relief Device Locations
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 ...