Trane IntelliPak Installation, Operation And Maintenance Manual page 126

Unit Start Up
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
HIGH VOLTAGE IS PRESENT ATTERMINAL BLOCK 1TB1
OR UNIT DISCONNECT SWITCH 1S14.
2. Close the disconnect switch or circuit protector switch
that provides the supply power to the unit's terminal
block 1TB1 or the unit mounted disconnect switch
1S14.
3. Turn the 115 volt control circuit switch 1S1 and the 24
volt control circuit switch 1S70 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 applicable programming manual for CV
or VAV applications for the SERVICETEST screens and
programming instructions.
5. Use Table 42, p. 96 to program the following system
components for operation by scrolling through the
displays;
– Supply Fan (On)
– Variable Frequency Drive (100% Output, if
applicable)
– RTM Occ/Unocc Output (Unoccupied)
– Outside Air Dampers (Closed)
6. Once the configuration for the components is
complete, press the NEXT key until the LCD displays
the "Start test in __Sec. " screen. Press the + key to
designate the delay before the test is to start.This
service test will begin after theTEST START key is
pressed and the delay designated in this step has
elapsed. Press the ENTER key to confirm this choice.
7. Press theTEST START key to start the test. Remember
that the delay designated in step 6 must elapse before
the fan will begin to operate.
8. With the outside air dampers fully closed and the
supply fan operating at 100% airflow requirements,
measure the return static pressure at the location
determined in step 1.
9. Press the STOP key at the Human Interface Module in
the unit control panel to stop the fan operation.
126
WARNING
Rotating Components!
The following procedure involves working with rotating
components. Disconnect all electric power, including
remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not
be inadvertently energized. Failure to disconnect power
before servicing could result in rotating components
cutting and slashing technician which could result in
death or serious injury.
10. Open the field supplied main power disconnect switch
upstream of the rooftop unit. Lock the disconnect
switch in the "Open" position while working on the
dampers.
11. Compare the static pressure reading to the static
pressure ranges and linkage positions in
p. 127 for the unit size and operating CFM.
To relocate the outside air/return air connecting rod to
balance the outside air damper pressure drop against the
return static pressure, use the following steps. If no
adjustment is necessary, proceed to step 17.
12. Remove the drive rod and swivel from the crank
arm(s). If only one hole requires changing, loosen only
that end.
13. Manually open the return air dampers to the full open
position.
14. Manually close the outside air dampers.
15. Reattach the drive rod and swivel to the appropriate
hole(s).The length of the drive rod may need to be
adjusted to align with the new hole(s) location. If so,
loosen the lock nut on the drive rod against the swivel.
Turn the swivel "in" or "out" to shorten or lengthen the
rod as necessary. For some holes, both ends of the rod
may need to be adjusted.
16. Tighten the lock nut against the swivel(s).
17. Plug the holes after the proper CFM has been
established.
Table 57,
RT-SVX36K-EN