Vfd Programming Parameters - Trane IntelliPak WEHE Series Installation, Operation And Maintenance Manual

Service & Maintenance
Table 38. Refrigerant coil fin data
2
Casing Size (ft )
20.3
2
20.3
3 25.5
4 32.5
5 38
6 43
9 59.3
Table 39. Supply and exhaust fan VFD programming parameters
Menu Parameter
1-21
1-22
Load & Motor
1-24
1-25
Limits & Warnings 4-18
(a) These parameters are motor specific and the actual motor nameplate rating must be used. Do not use the unit nameplate values.

VFD Programming Parameters

Units shipped with an optional variable frequency drive
(VFD) are preset and run tested at the factory. If a problem
with a VFD occurs, ensure that the programmed
parameters listed in Table 39
replacing the drive.
WARNING
Hazardous Voltage w/Capacitors!
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives or
other energy storing components provided by Trane or
others, refer to the appropriate manufacturer's literature
for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all
capacitors have discharged. Failure to disconnect power
and discharge capacitors before servicing could result in
death or serious injury.
HIGH VOLTAGE IS PRESENT AT TERMINAL BLOCK 1TB1
OR UNIT DISCONNECT SWITCH 1S14.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06A-EN
Note: Check to make sure that parameter 1-23 is set to 60
Hz. To check parameter 1-23 press the Main Menu
button (press Back button if the main menu does
not display), use the Down button to scroll down to
102
Evaporator Coil
Rows/Fin
Series Tube Diameter/Surface
4/168 1/2"/Enhanced
4/168 1/2"/Enhanced
5/168 3/8"/Enhanced
5/168 3/8"/Enhanced
4/168 1/2"/Enhanced
6/168 3/8"/Enhanced
6/148 1/2"/Enhanced
Description
Motor Power Set Based on Motor Nameplate
Motor Voltage Set Based on Motor Nameplate
Motor Current Set Based on Motor Nameplate
Motor Speed Set Based on Motor Nameplate
Current Limit 100% x Rated Current
have been set before
(a)
Setting
Set only for applications using 3hp Hi-Efficiency
Set only for 200/230v 60hz & 380/415 50hz
Load & Motor, press OK, use the Down button to
select 1-2, press OK, and finally use the Down
button until parameter 1-23 is displayed. Parameter
1-23 can then be modified by pressing OK button
and using Up and Down buttons. When the desired
selection has been made, press the OK button.
Should replacing the a VFD become necessary, the
replacement is not configured with all of Trane's operating
parameters. The VFD must be programmed before
attempting to operate the unit.
To verify and/or program a VFD, use the following steps:
1. At the unit, turn the 115 volt control circuit switch 1S70
to the "Off" position.
2. Turn the 24 volt control circuit switch to the "Off'
position.
3. To modify parameters:
(a) Press Main Menu button (press [Back] button if the
main menu does not display)
(b) Use the Up and Down Arrow buttons to find the
parameter menu group (first part of parameter
number)
(c) Press OK
(d) Use Up and Down Arrow buttons to select the
correct parameter sub-group (first digit of second part
of parameter number)
(e) Press OK
Description
motors. Set to 2.2 kW/3hp.
applications
Sets the motor FLA
Sets the motor rpm
Limits the maximum current to motor
RT-SVX35H-EN