66
JOHNSON CONTROLS
FORM 100.50-NOM6 (1207)
Sequence of Operation
The Simplicity Control will stage off the cooling as
follows:
•
If the space temperature is within 0.5° F of the
“CV OCCUPIED COOLING SETPOINT”
or
“CV UNOCCUPIED COOLING SETPOINT”
the control turns off the System 2 compressors,
if on, with a 30 second delay between the com-
pressors provided the minimum compressor run
times have been satisfi ed.
•
If the space temperature is equal to or below the
“CV OCCUPIED COOLING SETPOINT”
or
“CV UNOCCUPIED COOLING SETPOINT”
the control turns off the System 1 compressors
with a 30 second delay between the compressors
provided the minimum compressor run times
have been satisfi ed.
The Simplicity Control has the following timing cooling
functions:
•
Minimum off time of 5 minutes.
•
Minimum on time of 3 minutes – This param-
eter can be programmed from between 1 and 10
minutes using the COOLING SETUP tab of the
in the Simplicity PC software package.
Heating Operation – Occupied or Unoccupied
The Simplicity Control will stage on the heat as
follows:
•
When the space temperature is 1.5° F – 1.9° F
below the
“CV OCCUPIED HEATING”
or
“CV
UNOCCUPIED HEATING SETPOINT”
the
control energizes the fi rst stage of heat.
•
When the space temperature is 2.0° F – 2.4° F
below the
“CV OCCUPIED HEATING”
or
“CV
UNOCCUPIED HEATING SETPOINT”
the
control energizes the second stage of heat.
•
When the space temperature is 2.5° F or more
below the
“CV OCCUPIED HEATING”
or
“CV
UNOCCUPIED HEATING SETPOINT”
the
control energizes the third stage of heat.
The Simplicity Control will stage off the heat as
follows:
•
When the space temperature is 2.4° F below the
“CV OCCUPIED HEATING”
or
“CV UNOC-
CUPIED HEATING SETPOINT”
the third stage
of heating will turn off.
•
When the space temperature is 1.9° F below the
“CV OCCUPIED HEATING”
or
“CV UNOC-
CUPIED HEATING SETPOINT”
the second
stage of heat will turn off.
•
When the space temperature is 0.1° F above the
“CV OCCUPIED HEATING”
or
“CV UNOC-
CUPIED HEATING SETPOINT”
the fi rst stage
of heating will turn off.
The Simplicity Control has the following heating timing
functions:
•
A minimum off time of 2 minutes.
•
A minimum on time of 3 minutes.
•
There is a 30 second time delay between stag-
es.
Stand Alone
The following System Parameters must be programmed
through the Simplicity Control:
•
“CV OCCUPIED COOLING SETPOINT”
– us-
ing Parameter 10 under the PROGRAM key on
the Simplicity control board or under the COOL-
ING SETUP tab in the Simplicity PC software
package.
•
“CV OCCUPIED HEATING SETPOINT”
– us-
ing Parameter 11 under the PROGRAM key on
the Simplicity control board or under the HEAT-
ING SETUP tab in the Simplicity PC software
package.
•
“CV UNOCCUPIED COOLING SETPOINT”
– using Parameter 12 under the PROGRAM
key on the Simplicity control board or under
the COOLING SETUP tab in the Simplicity PC
software package.
Summary of Contents for ECO2 YPAL 050
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