RT-SVX50J-EN
25
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.
Electromechanical Controls –
Test Procedure
See unit schematic for correct wire numbers.
F
Fa
an
n T
Te
esstt a
an
nd
d M
Miin
niim
mu
um
m V
Ve
en
nttiilla
attiio
on
n.. Connect red
thermostat wire (R) to black thermostat wire (G).
E
Ecco
on
no
om
miizze
err C
Co
oo
olliin
ng
g. Connect a jumper wire across
OAT on Economizer Control (ECA).
Connect red thermostat (R) wire to yellow thermostat
wire (Y1).
C
Co
oo
oll 1
1.. Connect red thermostat wire (R) to yellow
thermostat wire (Y1).
C
Co
oo
oll 2
2.. Connect red thermostat wire (R) to yellow
thermostat wire (Y2).
H
He
ea
att 1
1.. Connect red thermostat wire (R) to brown
thermostat wire (W1).
H
He
ea
att 2
2.. Connect red thermostat wire (R) to brown
thermostat wire (W2).
Summary of Contents for Foundation EBC180
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