Trane Intellipak 2 Service Manual

Unit Startup
RT-SVX24K-EN111
internally connected for clockwise rotation with the
incoming power supply phased as A, B, C.
Proper electrical supply phasing can be quickly
determined and corrected before starting the unit by using
an instrument such as an Associated Research Model 45
Phase Sequence Indicator and following the steps below:
 [ ] Turn the field supplied disconnect switch that
provides power to terminal block or to the unit
mounted disconnect switch to the “Off” position.
 [ ] Connect the...

Unit Startup
11 2RT-SVX24K-EN
Table 37. Service test guide for component operation — part I of II
Component 
Being Tested COMPONENT CONFIGURATION
Supply Fan Return
Fan Exhaust
Fan Condenser
Fans Heat Stages
Compressor Stage
1231234
COMPRESSOR
90 - 105 Ton
1A  OFF    OFF   OFF  ALL OFF  OFF OFF OFF  ON OFF OFF OFF
1B  OFF    OFF   OFF  ALL OFF  OFF OFF OFF  ON ON OFF OFF
2A  OFF    OFF   OFF  ALL OFF  OFF OFF OFF  OFF OFF ON OFF
2B  OFF    OFF   OFF  ALL OFF  OFF OFF OFF  OFF OFF ON ON120 - 162 Ton
1A...

Unit Startup
RT-SVX24K-EN11 3
 SUPPLY FAN  ON    ON    OFF    ALL OFF    OFF OFF OFF   OFF OFF OFF   OFF
 RETURN FAN  ON    ON    N/A    ALL OFF   OFF OFF OFF   OFF OFF OFF   OFF
 EXHAUST FAN  OFF    N/A    ON    ALL OFF   OFF OFF OFF   OFF OFF OFF   OFF
 GAS HEAT 
(Full Capacity)    ON     ON  OFF
 ALL OFF   ON ON ON  OFF OFF OFF   OFF
STAGE 1  ON     ON  OFF  ALL OFF   ON OFF ON  OFF OFF OFF   OFF
STAGE 2  ON     ON  OFF  ALL OFF   OFF  ON N/A  OFF OFF OFF   OFF
Full Modulating  ON     ON  OFF  ALL OFF...

Unit Startup
11 4RT-SVX24K-EN
Table 38. Service test guide for component operation — part II of II
Component 
Being Tested Component Configuration
Occ
Unocc Relay Sump Pump Sump Heater
Econo
Damper Exhaust
Damper VFD
Output
COMPRESSOR
90 - 105 Ton
1A Closed Closed 0%Default OFFOFF
1B Closed Closed 0%Default OFFOFF
2A Closed Closed 0%Default OFFOFF
2B Closed Closed 0%Default OFFOFF
120 - 162 Ton
1A Closed Closed 0%Default OFFOFF
1B Closed Closed 0%Default OFFOFF
2A Closed Closed 0%Default OFFOFF
2B Closed...

Unit Startup
RT-SVX24K-EN11 5
Service Testing—Evaporative Condenser
Components
From the Compressor and Condenser Service Menu
screens—Head Pressure Control: AUTO or Head Pressure
Control: MANUAL
1. Select:
Head Pressure Control: MANUAL
Note: All outputs, Sump Control, Fan Stage Control and
Fan speed Control (per circuit where specified), will
be available for ON/OFF, OPEN/CLOSED, 0-100%
manual settings considering the stipulations in
Table 39 :
Notes:
 1. Sump Freeze Protection is active during AUTO but...

Unit Startup
11 6RT-SVX24K-EN
If all of the fans are rotating backwards;
a. Press the STOP key at the Human Interface Module
in the unit control panel to stop the fan operation.
b. Open the field supplied disconnect switch upstream of the rooftop unit. Lock the disconnect switch in the
open position while working at the unit.
c. Interchange any two of the field connected main power wires at the unit terminal block or the factory
mounted disconnect switch. Note:
Interchanging “Load” side power wires at...

Unit Startup
RT-SVX24K-EN11 7
System Airflow Measurements
Constant Volume Systems
1. Ensure that the “System” selection switch at the
remote panel is in the “Off” position and the “Fan”
selection switch for constant volume units is in the
“Auto” position.
2. Close the disconnect switch or circuit protector switch that provides the supply power to the unit terminal
block or the unit mounted disconnect switch.
HIGH VOLTAGE IS PRESENT AT TERMINAL BLOCK OR
UNIT
 DISCONNECT SWITCH.
3. Turn the 115 volt...

Unit Startup
11 8RT-SVX24K-EN
HIGH VOLTAGE IS PRESENT AT TERMINAL BLOCK OR
UNIT DISCONNECT SWITCH.
3. Turn the 115 volt control circuit switch and the 24 volt
control circuit switch to the “On” position.
4. Open the Human Interface access door, located in the unit
 control panel, and press the SERVICE MODE key to
display the first service screen. Refer to the latest
edition of the appropriate Programming Manual for
VAV applications for the SERVICE TEST screens and programming instructions.
Use T
able 37,...

Unit Startup
RT-SVX24K-EN11 9
key to display the first service screen. Refer to the
latest edition of the appropriate programming
manual for applications for the SERVICE TEST
screens and programming instructions.
4. Use Table37, p.11 2to program the following system
components for operation by scrolling through the
displays:
Exhaust Fan,
Exhaust Dampers (100% Open, if applicable),
Outside air dampers (100% Open),
Variable Frequency Drive (100%, if applicable), RTM Occ/Unocc Output (Default)
5. Once the...

Unit Startup
120RT-SVX24K-EN
Performance Data
Supply Fan with or without Variable
Frequency Drive
Figure 70. Supply fan performance LOW CFM — 90/100 tons, 25” supply fan
Figure 71. Supply fan performance STANDARD CFM — 90/100 and 105/118 tons, 36” supply fan