122
RTAA-IOM-3
[ ] Energize the evaporator and
Domestic Water Heater heat tape.
[ ] Fill the evaporator chilled water
circuit. Refer to Table 1 for
evaporator liquid capacities. Vent
the system while it is being filled.
Open the vent on the top of the
evaporator during filling and close
when filling is completed.
Customer Note
The use of improperly treated or
untreated water in this equipment may
result in scaling, erosion, corrosion,
algae or slime. The services of a
qualified water treatment specialist
should be engaged to determine what
treatment, if any, is advisable. The
Trane Company warranty specifically
excludes liability for corrosion, erosion
or deterioration of Trane equipment.
Trane assumes no responsibilities for
the results of the use of untreated or
improperly treated water, or saline or
brackish water.
Caution: Do not used untreated or
improperly treated water.
Equipment damage may occur.
Caution: Do not fill the water
systems unless the evaporator and
Domestic Water Heater heat tapes
have been energized.
[ ] Close the fused-disconnect
switch(es) that supplies power to
the chilled water pump starter.
[ ] Start the chilled water pump to
begin circulation of the chilled water.
Inspect all piping for leakage and
make any necessary repairs.
[ ] With chilled water circulating
through the system, adjust water
flow and check water pressure drop
through the evaporator. Refer to
Figure 23.
[ ] Adjust the chilled water flow switch
(if installed) for proper operation.
[ ] Prove Chilled Water Pump Interlock
and External Auto/Stop as described
in Interconnecting Wiring: Chilled
Water Pump Interlock and External
Auto/Stop.
Caution: Chilled Water Pump
Interlock and External Auto/Stop
information must be adhered to or
equipment damage may occur.
[ ] Check and set, as required, all UCM
Menu items.
[ ] Stop the chilled water pump.
Unit Voltage
Power Supply
Voltage to the unit must meet the
criteria given in Table 10. Measure each
leg of the supply voltage at the unit
main power fused-disconnect. If the
measured voltage on any leg is not
within specified range, notify the
supplier of the power and correct the
situation before operating the unit.
Caution: Inadequate voltage to the
unit can cause control components
to malfunction and shorten the life
of relay contact, compressor
motors and contactors.
Unit Voltage Imbalance
Excessive voltage imbalance between
the phases of a three-phase system can
cause Motors to overheat and
eventually fail. The maximum
allowable imbalance is 2 percent.
Voltage imbalance is determined using
the following calculations:
% Imbalance =
(Vx - Vave) x 100
Vave
Vave = (V1 + V2 + V3)
/ 3
Vx = phase with greatest difference
from Vave (without regard to sign)
For example, if the three measured
voltages are 221, 230, and 227 volts, the
average would be:
221 +230 +227 = 226
3
The percentage of imbalance is then:
100 (221 - 226) = 2.2%
226
This exceeds the maximum allowable
(2%) by 0.2 percent.
Содержание RTAA-130
Страница 2: ... American Standard Inc 1991 ...
Страница 8: ...8 RTAA IOM 3 ...
Страница 13: ...13 RTAA IOM 3 Figure 3 Typical RTAA Packaged Unit 240 400 Tons Control Panel Evaporator Outlet Inlet ...
Страница 24: ...24 RTAA IOM 3 ...
Страница 26: ...26 RTAA IOM 3 Figure 9 Dimensions and Clearances for RTAA Packaged Unit 130 to 200 Ton RTAA SU 1000E ...
Страница 27: ...27 RTAA IOM 3 Figure 10 Dimensions and Clearances for RTAA Packaged Unit 240 300 Ton RTAA SU 1001C ...
Страница 28: ...28 RTAA IOM 3 Figure 11 Dimensions and Clearances for RTAA Packaged Unit 340 to 400 Ton RTAA SU 1002C ...
Страница 38: ...38 RTAA IOM 3 RTAA SA 2002C Figure 19 Spring Isolator Placement for Typical RTAA Packaged Unit 240 400 Tons ...
Страница 46: ...46 RTAA IOM 3 Figure 24 Typical Domestic Water Heater Piping Figure 25 Typical Domestic Water Heater Piping ...
Страница 50: ...50 RTAA IOM 3 Figure 30 Refrigerant Circuit Identification ...
Страница 52: ...52 RTAA IOM 3 Figure 31 Remote Evaporator Piping Example ...
Страница 58: ...58 RTAA IOM 3 Continued on Next Page Figure 34 Typical Field Wiring for RTAA Packaged Unit 130 to 200 Tons ...
Страница 59: ...59 RTAA IOM 3 Continued from Previous Page See Notes on Next Page ...
Страница 61: ...61 RTAA IOM 3 Figure 35 Typical Field Wiring for RTAA Packaged Unit 240 400 Tons Continued on Next Page ...
Страница 63: ...63 RTAA IOM 3 Continued from Previous Page See Notes on Page 61 ...
Страница 64: ...64 RTAA IOM 3 Figure 36 Typical Field Wiring for RTAA With Remote Evaporator Option Continued on Next Page ...
Страница 65: ...65 RTAA IOM 3 Continued from Previous Page See Notes on Page 61 ...
Страница 76: ...76 RTAA IOM 3 ...
Страница 78: ...78 RTAA IOM 3 Figure 40 Refrigeration System and Control Components Single Circuit Continued on Next Page ...
Страница 80: ...80 RTAA IOM 3 Figure 41 Refrigeration System and Control Components Duplex Circuit Continued on Next Page ...
Страница 92: ...92 RTAA IOM 3 Figure 51 Operator Interface Controls ...
Страница 120: ...120 RTAA IOM 3 ...
Страница 126: ...126 RTAA IOM 3 Figure 56 Unit Sequence of Operation RTAA 240 to 400 Tons Continued on Next Page ...
Страница 127: ...127 RTAA IOM 3 Continued from Previous Page 2307 1566C ...
Страница 128: ...128 RTAA IOM 3 Figure 57 Unit Sequence of Operation RTAA 130 to 200 Tons 2306 9122A ...
Страница 132: ...132 RTAA IOM 3 Figure 58 Operator s Log ...
Страница 138: ...138 RTAA IOM 3 ...