113
Return Air Humidity Sensor (3U64) .................................. 8
return air temperature reaches 135 F ............................. 10
Rooftop Module...................................................................7
RTM Resistance Input vs Setpoint Temperatures ............. 7
RTM Resistance Value vs System Operating Mode ..........7
S
Sample Model Number ....................................................4–5
Sample Operator's Maintenance Log .............................. 110
See
Table 5-8
Saturated Condenser Temperature Sensors ..................... 9
saturated condensing temperature falls ............................ 9
Scroll Compressor Replacement ....................................105
See
Figure 5-2
Service Test Guide for Component Operation ................. 61
See
Table 4-1
"Shipwith" Locations ......................................................... 11
Sizing Natural Gas Pipe Mains & Branches...................... 33
See
Table 3-4
some fans are rotating backwards ....................................63
See
Fan Rotation
Space Pressure Transducer ...................................... 10, 31
See
Figure 3-9
Status/Annunciator Output ..................................................9
Steam or Hot Water Coils .................................. 36, 37, 109
See
Coil Cleaning; Figure 3-12: Figure 3-13:
"Wet Heat"
Suction Line Filter/Drier Installation ............................... 105
See
Figure 5-2
suction pressure approaches 7 ± 4 psig .............................9
suction pressure exceeds 22 ± 4 psig................................ 9
supply air temperature falls 10 F below .......................... 10
Supply Air Temperature Low Limit.................................... 10
supply air temperature reaches 10 F above .................... 10
supply air temperature reaches 240 F ............................. 10
Supply Air Temperature Sensor (3RT9) ............................ 8
Supply Air Tempering........................................................ 10
Supply and Exhaust Airflow Proving Switch....................... 8
Supply and Exhaust Fan Circuit Breakers ........................ 9
Supply and Exhaust Fan Shipping Channels ................. 30
See
Figure 3-8
Supply and Exhaust Fan VFD Programming
Parameters ...................................................................... 106
See
Table 5-8
Supply Duct Static Pressure Control ............................... 11
swing-check vacuum breaker .......................................... 37
See
Figure 3-13
T
"temporary low limit suppression" setting ........................... 9
Thermostatic Expansion Valves ....................................... 83
Trane Communications Interface Module ...........................7
Trane OIL-42...................................................................... 83
Transducer Voltage Output vs Pressure Input ................. 10
TraqTM Sensor Airflow Measurement ............................. 66
Two Stage Gas Furnace .................................................. 56
Typical Field Power Wiring ............................................... 39
See
Figure 3-14
Typical Field Wiring Diagram ..................................... 49-53
See
Figure 3-16: Figure 3-17
Typical Gas Furnace......................................................... 99
See
Figure 4-10
Typical Ventilation Override Binary
Output Wiring ............................................................... 50-53
See
VOM Contacts: FIgure 3-16: Figure 3-17
U
unit and curb operating weights ........................................ 22
See
Table 3-3
Unit Internal Fuse Replacement Data & VFD
Factory Settings............................................................... 101
See
Table 5-3
units electric heat units operating on 460/575 vol.......... 39
See
Figure 3-14
units operating on 200/230 volts ....................................... 38
units operating on 460/575 volts ...................................... 38
Units with an Economizer ................................................ 55
Units with TraqTM Sensor ................................................ 55
Units without an Economizer ............................................ 55
Unoccupied Heating ......................................................... 11
unoccupied to an occupied mode with
the MWU option ................................................................ 10
V
Variable Air Volume Systems ........................................... 65
VAV Changeover Contacts .............................................. 46
VAV Control Option ..................................................... 49-53
See
Figure 3-16: Figure 3-17
VCM optional CO2 sensor................................................. 8
VCM optional temperature sensor .................................... 8
Velocity Pressure Transducer/Solenoid Assembly ........... 8
Ventilation Control Module ................................................ 8
Ventilation Override Module .............................................. 7
VFD Programming Parameters ..................................... 106
See
Table 5-8
Voltage Imbalance ............................................................ 60
Voltage Supply .................................................................. 60
VOM Contacts .................................................................. 47
See
VOM Modes
VOM Mode “A” .................................................................. 47
See
VOM Contacts
VOM Mode “B” ...................................................................47
See
VOM Contacts
VOM Mode “C”...................................................................47
See
VOM Contacts
VOM Mode “D”...................................................................47
See
VOM Contacts
VOM Mode “E” .................................................................. 47
See
VOM Contacts
W
Warnings ............................................................................. 6
Wet Airside Pressure Drop ......................................... 70-72
See
Figure 4-3
Wet Heat ............................................................................ 58
“Wet” heat actuator ............................................................58
"Wet Heat" Coil Fin Data .................................................102
See
Table 5-5
Z
Zone Temperature - Cooling..............................................10
Zone Temperature - Heating ............................................. 10
