Sequence Of Operation; Modulating Damper With Fixed Speed Exhaust; Modulating Exhaust With A Vfd - York ECO2 YPAL 050 Installation & Operation Manual

Sequence of Operation

When the building static pressure is 0.015" WC or more
above the "BUILDING PRESSURE SETPOINT" the
Simplicity Elite control closes the output to the exhaust
fan motor. The output is at the "EXH" terminal of the
P13 connector.
When the building static pressure is 0.015" WC or more
below the "BUILDING PRESSURE SETPOINT" the
Simplicity Elite control opens the output to the exhaust
fan motor.
The minimum run time is 10 seconds and the minimum
off time is 60 seconds.

Modulating Damper with Fixed Speed Exhaust

This exhaust option uses a standard motor without any
type of speed control and a modulating damper.
The following System Parameters must be programmed
through the Simplicity Elite control:
"POWER EXHAUST INSTALLED" – must be turned
on using Parameter 43 under the PROGRAM key
on the Simplicity Elite control board or under the
ECONOMIZER/EXHAUST tab in the Simplicity PC
software package.
" B U I L D I N G S TAT I C P R E S S U R E S E N S O R
INSTALLED" – must be turned on using Parameter 85
under the PROGRAM key on the Simplicity Elite control
board or under the EQUIPMENT INSTALLATION tab
in the Simplicity PC software package.
"BUILDING PRESSURE SETPOINT" must be
programmed using Parameter 31 under the PROGRAM
key on the Simplicity Elite control board or under the
ECONOMIZER/EXHAUST tab in the Simplicity PC
software package.
"MODULATING POWER EXHAUST INSTALLED"
must be turned on using Parameter 44 under the
PROGRAM key on the Simplicity Elite control board
or under the ECONOMIZER/EXHAUST tab in the
Simplicity PC software package.
"EXHAUST DAMPER POSITION FOR EXHAUST FAN
TO TURN ON" must be programmed using Parameter
46 under the PROGRAM key on the Simplicity Elite
control board or under the ECONOMIZER/EXHAUST
tab in the Simplicity PC software package.
JOHNSON CONTROLS
"EXHAUST DAMPER POSITION FOR EXHAUST FAN
TO TURN OFF" must be programmed using Parameter
47 under the PROGRAM key on the Simplicity Elite
control board or under the ECONOMIZER/EXHAUST
tab in the Simplicity PC software package.

Sequence of Operation

When the building static pressure is 0.025" WC or more
above the "BUILDING PRESSURE SETPOINT" the
Simplicity Elite control sends a 2 to 10 volt DC signal to
open the exhaust damper. The output is at the "EXD+"
and "EXD-" terminals at the P14 connector.
When the exhaust damper position is equal to or greater
than the "EXHAUST DAMPER POSITION FOR
EXHAUST FAN TO TURN ON" the Simplicity Elite
control turns on the exhaust fan. The output is at the
"EXH" terminal of the P13 connector.
When the building static pressure is 0.025" WC or more
below the "BUILDING PRESSURE SETPOINT" the
Simplicity Elite control lowers the 2 – 10 volt DC output
to the exhaust damper to close the damper.
When the exhaust damper position is equal to or less
than the "EXHAUST DAMPER POSITION FOR
EXHAUST FAN TO TURN OFF" the Simplicity Elite
control turns on the exhaust fan.
The minimum run time is 20 seconds and the minimum
off time is 60 seconds.

Modulating Exhaust with a VFD

This exhaust option uses a Variable Frequency Drive
(VFD) and a barometric damper.
The following System Parameters must be programmed
through the Simplicity Elite control:
"POWER EXHAUST INSTALLED" – must be turned
on using Parameter 43 under the PROGRAM key
on the Simplicity Elite control board or under the
ECONOMIZER/EXHAUST tab in the Simplicity PC
software package.
FORM 100.50-NOM6 (1207)
93
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