Variable Air Volume Units; Thermostat Control - Cooling; Thermostat Control - Heating - York Eco 2 Quick Start Up Manual

THERMOSTAT CONTROL – COOLING
Field Wiring
Connect the thermostat wiring to the fi eld wiring screw
connections on the Unit Controller (see Appendix 1).
Misc. Connections
Pneumatic tubing must be fi eld-supplied and installed
from the duct static transducer "high" side connection
to a fi eld supplied static pressure probe that is installed
approximately two-thirds down the trunk line in the
duct work. The duct static transducer is mounted in the
control compartment.
An atmospheric static pressure probe with a bracket is
factory supplied (shipped in the return section of the
unit) and is to be installed on the specifi ed support post
(see Appendix 1). A barbed fi tting is already factory
installed on the support post, and should be used to
connect the atmospheric probe using fi eld supplied
pneumatic tubing.
The black cap on the atmospheric
sensor probe should be positioned at
top. See Appendix 1 for details on the
installation of the probe.
Programming
"COOLING MODE OPERATION ENABLED" – Must
be set to ON using Parameter 53 under the PROGRAM
key on the Simplicity control board or under the
COOLING SETUP tab in the Simplicity PC software
package.
"VAV COOLING SUPPLY AIR TEMP UPPER
SETPOINT" – Must be set using Parameter 23 under
the PROGRAM key on the Simplicity control board or
under the COOLING SETUP tab in the Simplicity PC
software package. Settable between 40.0º F and 70.0º
F. The default value is 60.0º F.
JOHNSON CONTROLS

VARIABLE AIR VOLUME UNITS

"VAV COOLING SUPPLY AIR TEMP LOWER
SETPOINT" – Must be set using Parameter 24 under
the PROGRAM key on the Simplicity control board or
under the COOLING SETUP tab in the Simplicity PC
software package. Settable between 40.0º F and 70.0º
F. The default value is 55.0º F.
"DUCT PRESSURE SETPOINT" – Must be set
using Parameter 30 under the PROGRAM key on the
Simplicity control board or under the FAN tab in the
Simplicity PC software package. Settable between 0.0
and 5.0 INWC. The default value is 1.5 INWC.
"DUCT PRESSURE SHUTDOWN SETPOINT" – Must
be set under the FAN tab in the Simplicity PC software
package. Settable between 0.0 and 5.0 INWC. The
default value is 4.5 INWC.
THERMOSTAT CONTROL – HEATING
Field Wiring
Connect the thermostat wiring to the fi eld wiring screw
connections on the Unit Controller (see Appendix 1).
Misc. Connections
Pneumatic tubing must be fi eld-supplied and installed
from the duct static transducer "high" side connection
to a fi eld supplied static pressure probe that is installed
approximately two-thirds down the trunk line in the
duct work. The duct static transducer is mounted in the
control compartment.
An atmospheric static pressure probe with a bracket is
factory supplied (shipped in the return section of the
unit) and is to be installed on the specifi ed support post
(see Appendix 1). A barbed fi tting is already factory
installed on the support post, and should be used to
connect the atmospheric probe using fi eld supplied
pneumatic tubing.
The black cap on the atmospheric
sensor probe should be positioned at
top. See Appendix 1 for details on the
installation of the probe.
FORM 100.50-SU3 (1207)
11