Trane IntelliPak 2 Series User Manual

112
RT-SVX24Q-EN
to the latest edition of the appropriate
programming manual for CV applications for the
SERVICE TEST screens and programming
instructions.
5. Use the tables in “Voltage Imbalance,” p. 105 to
program the Supply Fan for operation by scrolling
through the displays.
6. Once the configuration for the Fan 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 the TEST START key is pressed and
the delay designated in this step has elapsed. Press
the ENTER key to confirm this choice.
WWAARRNNIINNGG
LLiivvee EElleeccttrriiccaall CCoommppoonneennttss!!
FFaaiilluurree ttoo ffoollllooww aallll eelleeccttrriiccaall ssaaffeettyy pprreeccaauuttiioonnss
wwhheenn eexxppoosseedd ttoo lliivvee eelleeccttrriiccaall ccoommppoonneennttss ccoouulldd
rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..
WWhheenn iitt iiss nneecceessssaarryy ttoo wwoorrkk wwiitthh lliivvee eelleeccttrriiccaall
ccoommppoonneennttss,, hhaavvee aa qquuaalliiffiieedd lliicceennsseedd eelleeccttrriicciiaann
oorr ootthheerr iinnddiivviidduuaall wwhhoo hhaass bbeeeenn pprrooppeerrllyy ttrraaiinneedd
iinn hhaannddlliinngg lliivvee eelleeccttrriiccaall ccoommppoonneennttss ppeerrffoorrmm
tthheessee ttaasskkss..
7. Press the TEST START key to start the test.
Remember that the delay designated in step 6 must
elapse before the fans will begin to operate.
8. With the system in the SERVICE MODE and the
supply fan rotating in the proper direction, measure
the amperage at the supply fan contactors. If the
amperage exceeds the motor nameplate value, the
static pressure is less than design and the airflow is
too high. If the amperage is below the motor
nameplate value, static pressure may be too high
and CFM may be too low.
To determine the aaccttuuaall CCFFMM (± 5%):
a. Measure the actual fan RPM
b. Calculate the Theoretical BHP:
c. Plot this data onto the appropriate Fan
Performance Curve (see Fan Performance Data).
Where the two points intersect, read straight
down to the CFM line. Use this data to assist in
calculating a new fan drive if the CFM is not at
design specifications.
d. An alternate method with less accuracy is to
measure the ssttaattiicc pprreessssuurree ddrroopp aaccrroossss tthhee
eevvaappoorraattoorr ccooiill. This can be accomplished
using the following steps:
• Drill a small hole through the unit casing on
each side of the coil.
IImmppoorrttaanntt:: Coil damage can occur if care is
not taken when drilling holes in
this area.
• Measure the difference between the
pressures at both locations.
• Plot this value onto the appropriate pressure
drop curve (see Performance Data). Use the
data in Component Static Pressure Drops to
assist in calculating a new fan drive if the
CFM is not at design specifications.
• Plug the holes after the proper CFM has
been established.
9. Press the STOP key at the Human Interface Module
in the unit control panel to stop the fan operation.
Variable Air Volume Systems
1. Ensure that the “System” selection switch at the
remote panel is in the Off 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.
WWAARRNNIINNGG
HHaazzaarrddoouuss VVoollttaaggee!!
FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr bbeeffoorree sseerrvviicciinngg ccoouulldd
rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..
DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmoottee
ddiissccoonnnneeccttss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerr
lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr
ccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. VVeerriiffyy tthhaatt nnoo
ppoowweerr iiss pprreesseenntt wwiitthh aa vvoollttmmeetteerr..
IImmppoorrttaanntt:: 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.
5. Use the tables in “Voltage Imbalance,” p. 105 to
program the Supply Fan for operation by scrolling
through the displays:
Supply Fan / Variable Frequency Drive (100%
Output, if applicable) / RTM Occ/Unocc Output
(Unoccupied)
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 the TEST
START key is pressed and the delay designated in
UUnniitt SSttaarrttuupp

Trane IntelliPak 2 Series Specifications

General

Brand	Trane
Model	IntelliPak 2 Series
Category	Air Conditioner
Language	English