York YPAL 050 사용자 설명서

JOHNSON CONTROLS

FORM 100.50-NOM6 (1207)

•

  “CV UNOCCUPIED HEATING SETPOINT” 

– using Parameter 13 under the PROGRAM 
key on the Simplicity control board or under 
the HEATING SETUP tab in the Simplicity PC 
software package.

•

  “SPACE SENSOR FAULT OVERIDE EN-

ABLED” must be turned on – using Parameter 
8 under the PROGRAM key on the Simplicity 
control board or under the SYSTEM OPTIONS 
tab in the Simplicity PC software package.

The Simplicity Control will stage on the cooling as 
follows:

•

  At cooling start up

–  If the return air temperature is between 1.5° 

F and 1.9° F above the “CV OCCUPIED 
COOLING SETPOINT” or “CV UNOCCU-
PIED COOLING SETPOINT” the control 
will turn on the fi rst compressor from System 
1 and turn on a 5 minute timer.

–  If after 5 minutes the return air temperature 

is between 1.5° F and 1.9° F above the “CV 
OCCUPIED COOLING SETPOINT” or “CV 
UNOCCUPIED COOLING SETPOINT” the 
control will bring on the second compressor 
of System 1 and start a 5-minute timer.

 OR

–  If the return air temperature is greater than 

2.0° F or more above the “CV OCCUPIED 
COOLING SETPOINT” or “CV UNOCCU-
PIED COOLING SETPOINT” the control 
will bring on the fi rst compressor from System 
1 and start a 3 minute timer.  After 30 seconds, 
the control will bring on the second compres-
sor from System 1.

•

  If after 3 or 5 minutes the return air temperature 

is between 1.5° F and 1.9° F above the “CV 
OCCUPIED COOLING SETPOINT” or “CV 
UNOCCUPIED COOLING SETPOINT” the 
control will bring on the fi rst compressor from 
System 2 and start a 5 minute timer.

•

  If after 3 or 5 minutes the return air temperature 

is 2.0° F or more above the “CV OCCUPIED 
COOLING SETPOINT” or “CV UNOCCUPIED 
COOLING SETPOINT” the control will bring 
on the fi rst compressor of System 2 and start a 3 
minute timer.

•

  If after 3 or 5 minutes the return air temperature 

is 1.5° F or more above the “CV OCCUPIED 
COOLING SETPOINT” or “CV UNOCCUPIED 
COOLING SETPOINT” the control will bring on 
the second compressor of System 2.

The Simplicity Control will stage off the cooling as 
follows:

•

  If the return air 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 return air 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.

The Simplicity Control will stage on the heat as 
follows:

•

  When the return air 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 return air 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 return air 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.