Pre Start; Verifying Proper Air Flow; Belt Drive Indoor Fan); Electromechanical Controls - Test - Trane Foundation GBC Series Installation, Operation And Maintenance Manual

Pre Start

Verifying Proper Air Flow (Units
with Belt Drive Indoor Fan)
Much of the systems performance and reliability is
closely associated with, and dependent upon having
the proper airflow supplied both to the space that is
being conditioned and across the evaporator coil.
The indoor fan speed is changed by opening or closing
the adjustable motor sheave.
Before starting the SERVICE TEST, set the minimum
position setpoint for the economizer to 0% using the
setpoint potentiometer located on the Economizer
Control (ECA), if applicable.
24
Electromechanical Controls –
Test Procedure
F F a a n n T T e e s s t t a a n n d d M M i i n n i i m m u u m m V V e e n n t t i i l l a a t t i i o o n n . . Connect the
short circuit between R and G.
Connect the short circuit between R and Y1.
C C o o o o l l 1 1 . . Connect the short circuit between R and Y1.
C C o o o o l l 2 2 . . Connect the short circuit between R and Y2.
H H e e a a t t 1 1 . . Connect the short circuit between R and W1.
H H e e a a t t 2 2 . . Connect the short circuit between R and W2.
RT-SVX069A-EN