INPUTS & OUTPUTS
Pioneer Gold 1.10 & 2.05 Controller Technical Guide
1-20
Controller Input and Output Descriptions
Pioneer Gold Controller I/Os
SPT - Suction Pressure Sensor (By Others)
The Suction Pressure Transducer is an optional sensor used to
monitor the Suction Pressure (0-500 PSI sensor).
DPT - Discharge Pressure Sensor (By Others)
The Discharge Pressure Transducer is an optional sensor used to
monitor Discharge Pressure (0-667 PSI sensor).
SAT - Supply Air Temperature Sensor
The Supply Air Temperature Sensor is a 10kΩ Type 3 Thermistor
sensor used to measure the Supply (Discharge) Air Temperature.
CO2 - Space CO2 Sensor
This is an input for a field-installed CO
2
Sensor. Sensor must output
0-10V and have a range of 0-2000 ppm.
SPAT - Space Temperature Sensor
The Space Temperature Sensor is a 10kΩ Type 3 Thermistor sensor
used to measure the Space Temperature. If also using the Pioneer
Gold Digital Touch Screen Space Temperature and Humidity Sensor,
the Controller will default to the digital sensor.
DMPR OVR - CO2 Damper Override
This output is used to signal an Outdoor Air Damper if the CO
2
level
goes above setpoint. Output is 0 volts when below setpoint and 10
volts when above setpoint.
COF 2 - Condensate Overflow 2
This is a secondary, field-wired Condensate Overflow Alarm Input.
An alarm will be generated any time the resistance between this
input and ground is less than 100K Ohm. This Alarm disables the
Compressor outputs as well as the Main Fan. This can either be a
24VAC wet input or a dry contact between COM and the input.
AUX - Auxiliary Fault Switch
When this input is energized, the Auxiliary Fault Alarm will occur.
Once the compressor completes its Minimum Run Time, it will be
de-energized and the fan will continue to run. This can either be
a 24VAC wet input or a dry contact between COM and the input.
ESD - Emergency Shutdown Input
The Emergency Shutdown is a 24VAC wet input. If 24VAC is
removed from this input, all outputs are de-energized.
WARNING:
The Emergency Shutdown input is NOT to be
used for Life Safety applications.
NSB OVR - Night Setback Override
If the “Night Setback Enable” (see next Input) is energized and
this input is momentarily energized, the unit will go into Occupied
Mode for 2 hours and look at normal Thermostat inputs and then
return back to Unoccupied Mode. If the “Night Setback Enable”
is removed, the 2 hour timer is reset. This is a 24VAC Wet input.
NSB - Night Setback Enable
If the unit is being controlled by Thermostat, this input can be used
to force the unit into Unoccupied Mode. While in the Unoccupied
Mode, the unit will look at the “Night Setback” input for a Heating
call. All other Thermostat inputs are ignored. This is a 24VAC Wet
Input.
NSB TH - Night Setback Thermostat
If the Night Setback Enable is energized, this input is used to put the
unit into Heat mode while Occupied. Typically this signal would
come from a separate Thermostat set at a different setpoint. This is
a 24VAC Wet Input.
R - 24 VAC - Thermostat
This is the 24VAC output to Thermostat “R” connection.
G - Fan Call - Thermostat
This is the Fan call from a Thermostat. This is a 24VAC wet input
Y1 - Compressor Stage 1 Call - Thermostat
This is the Compressor Stage 1 Call from a Thermostat. This is a
24VAC wet input.
Y2 - Compressor Stage 2 Call - Thermostat
This is the Compressor Stage 2 Call from a Thermostat. This is a
24VAC wet input.
COM - Common or Ground - Thermostat
This is the Common or Ground connection for the Thermostat.
O - Reversing Valve Call - Thermostat
This is the Reversing Valve Call from the Thermostat. When
energized, the reversing valve will go into the Cool mode position.
This is a 24VAC wet input.
NOTE:
If used in a unit where the
reversing valve energizes for heating, you will need to install a
normally closed pilot relay to control the reversing valve.
DH - Dehumidification Call - Thermostat
This is the Dehumidification Call from a Thermostat. This is a
24VAC wet input.
W1 - Auxiliary Heat Stage 1 Call - Thermostat
This is the Aux Heat Call from the Thermostat. This is a 24VAC
wet input.
