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CODE
CODE NAME
P1
Return Air
Temperature
P2
Coil Temperature
P3
Ambient Temperature
P4
Suction Line
Temperature
P5
Suction Pressure
P6
Discharge Pressure
P7
Superheat
P8
Analog Set Point
Temperature
P9
A/C Control Window
#1
P10
A/C Control Window
#2
P11
A/C Control Window
#3
P12
Heat Control Window
P13
Compressor Safety
Off Delay
P14
Fan Delay
P15
Reheat Valve Delay
P16
Compressor High
Pressure Switch
P17
Condenser Fan
Speed Switch
P18
Maximum Setpoint
P19
Minimum Setpoint
T--356
Table 2-2. Parameter Codes
This value is the temperature measured by the return air sensor. If the sensor
is shorted it will display CL. If it is open circuited it will display OP.
Not used.
This value is the outside temperature measured by the ambient temperature
sensor. If the sensor is shorted it will display CL. If it is open circuited it will dis-
play OP.
Not used.
This value is the suction pressure measured by the suction pressure transduc-
er. If the sensor is shorted it will display CL If it is open circuited it will display
OP.
This value is the discharge pressure measured by the discharge pressure
transducer. If the sensor is shorted it will display CL and if it is open circuited it
will display OP.
Not used.
Not used.
This is the number of degrees F above setpoint at which the unloaders will be
both energized. This value can be modified between 0 and 10 degrees F. The
default value is 1 degree F.
This is the number of degrees F above AC control window one at which the
first unloader will be energized. This value can be modified between 0 and 10
degrees F. The default value is 1 degree F.
This is the number of degrees F above AC control window two at which the
evaporator fan speed will be set to low. This value can be modified between 0
and 10 degrees F. The default value is 1 degree F.
This is the number of degrees F below setpoint before the reheat coolant valve
is energized. This value can be modified between 0 and 10 degrees F. The
default value is 2 degree F for heat and 4 degrees F for reheat.
This number is the minimum time in minutes that the compressor must be off
after a high or low pressure alarm before it can be restarted. This value can be
modified between one and five minutes. The default value is 1.
This is the minimum time (in seconds) that the fans must run at a particular
speed before changing to another speed. This value can be modified between
one and 60 seconds. The default value is two seconds.
This is the minimum time (in seconds) that the reheat valve must be in a par-
ticular state (open /closed) before changing to another state. This value can be
modified between 1 and 60 seconds. The default value is 2 seconds.
This is the current state of the compressor high pressure switch input. "CL" will
be displayed if it is closed and "OP" will be displayed if it is open.
Not used.
This is the maximum value that the operator will be allowed to set the setpoint
temperature. The value can be modified in degrees with the up and down keys
to a value between 60°F and 80°F.
This is the minimum value that the operator will be allowed to set the setpoint
temperature. The value can be modified in degrees with the up and down keys
to a value between 60°F and 80°F.
2--6
DESCRIPTION
03/11
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