4 RT-SVX34F-EN
Table of Contents
Model Number Description . . . . . . . . . . . . . . . 7
60 Hz Description . . . . . . . . . . . . . . . . . . . . . . 7
50 Hz Description . . . . . . . . . . . . . . . . . . . . . . 9
General Information . . . . . . . . . . . . . . . . . . . . 11
Commonly Used Acronyms and Abbrevia-
tions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
About the Unit . . . . . . . . . . . . . . . . . . . . . 11
Precautionary Measures . . . . . . . . . . . . . 12
Unit Inspection . . . . . . . . . . . . . . . . . . . . . 12
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Unit Dimensions and Weights . . . . . . . . . . . 13
Recommended Clearances . . . . . . . . . . . . . 13
Roof Curb and Ductwork . . . . . . . . . . . . . . . 13
Horizontal Ductwork . . . . . . . . . . . . . . . . . 13
Unit Rigging and Placement . . . . . . . . . . . 19
Installation General Requirements . . . . . . . 21
Condensate Drain Connection . . . . . . . . . . 21
O/A Sensor & Tubing Installation . . . . . . . 21
Units with Statitrac™ . . . . . . . . . . . . . . . . . 21
Installation Electrical . . . . . . . . . . . . . . . . . . . . 23
Disconnect Switch External Handle (Factory
Mounted Option)
. . . . . . . . . . . . . . . . . . . . . 23
Main Power Wiring . . . . . . . . . . . . . . . . . . . 23
Through-the-Base Electrical (Optional Acces-
sory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Electrical Wire Sizing and Protection Device
Equations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Low Voltage Wiring . . . . . . . . . . . . . . . . . 28
Control Power Transformer . . . . . . . . . . . 28
Field Installed AC Control Wiring . . . . . . 28
Field Installed DC Control Wiring . . . . . . 29
Remote Panels and Sensors . . . . . . . . . . . 32
Constant Volume and Single Zone VAV Con-
trol Options . . . . . . . . . . . . . . . . . . . . . . . . 32
Variable Air Volume (non-SZ VAV) Control
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Installation Piping . . . . . . . . . . . . . . . . . . . . . . 36
General Requirements . . . . . . . . . . . . . . . . 36
Connecting the Gas Supply Line to the Fur-
nace Gas Train . . . . . . . . . . . . . . . . . . . . . 36
Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Unit Control Modules . . . . . . . . . . . . . . . . . .38
RTRM - ReliaTel Refrigeration Module . . .38
ECA - Economizer Actuator (Optional) . . .38
PEA - Power Exhaust Actuator (Optional) 38
RTAM - ReliaTel Air Handler Module (Stan-
dard with Traditional VAV) . . . . . . . . . . . .38
Conventional Thermostat Connections
(Available Only with CV) . . . . . . . . . . . . . .39
TCI - Trane Communication Interface (Option-
al) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
LCI - LonTalk® Communication Interface (Op-
tional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
BCI - BACnet® Communication Interface (Op-
tional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Manual Motor Protectors (380V Through
575V Only) . . . . . . . . . . . . . . . . . . . . . . . . .40
System Operation . . . . . . . . . . . . . . . . . . . . .40
Economizer Operation with a Conventional
Thermostat (CV Only) . . . . . . . . . . . . . . . .40
Microelectronic Control Features . . . . . . .40
Economizer Operation with CV Controls .41
Modulating Power Exhaust . . . . . . . . . . . .41
Mechanical Cooling without an Economizer
(CV and SZ VAV) . . . . . . . . . . . . . . . . . . . .42
Zone Temperature - Occupied Cooling (CV
and SZ VAV) . . . . . . . . . . . . . . . . . . . . . . . .42
Zone Temperature - Occupied Heating (CV
and SZ VAV) . . . . . . . . . . . . . . . . . . . . . . . .42
Supply Fan (CV and SZ VAV) . . . . . . . . . .42
Supply Air Tempering (CV and SZ VAV) .42
Variable Air Volume Applications (Single
Zone VAV)
. . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Supply Fan Output Control . . . . . . . . . . . .43
Minimum Supply Fan Output . . . . . . . . . .43
Supply Fan Mode Operation . . . . . . . . . . .43
Setpoint Arbitration . . . . . . . . . . . . . . . . . .44
Ventilation Control . . . . . . . . . . . . . . . . . . .44
Space Pressure Control . . . . . . . . . . . . . . .46
Supply Air Temperature Control - Heating
and Cooling . . . . . . . . . . . . . . . . . . . . . . . .46
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