Filter
Top Products
997-060180-4d
6
OUTDOOR SENSOR
If the system is equipped with an optional outdoor temperature sensor,
Bard PN 8403-061(1125-2), it is possible to allow the controller to operate
the heat pump system in the most efficient manner possible. By setting the
COOLING LOCKOUT, ELECTERIC HEAT LOCKOUT, and the HEAT
PUMP LOCKOUT you can avoid running the heat pump when the outdoor
temperature is too low to operate efficiently. You can also avoid running
the electric heat when the outdoor temperature is high enough to allow the
heat pump to maintain a comfortable temperature.
COOLING LOCKOUT is defaulted to NONE which is disabled.
Selectable range is from 40˚-55˚ in 5˚ increments.
ELECTRIC HEAT LOCKOUT is defaulted to NONE which is disabled.
Selectable range is from 5˚-60˚ in 5˚ increments.
HEAT PUMP LOCKOUT is defaulted to NONE which is disabled.
Selectable range is from 5˚-50˚ in 5˚ increments. OPERATION: If
compressor is turned off due to outdoor temperature going below set-point
while the compressor is operating it will stay off until the room thermostat
set-point is reached even if the temperature at the outdoor temperature rises
above the outdoor sensor setting. The next operating cycle will be based
on what the temperature is at the outdoor sensor at time of call for heating.
The OUTDOOR sensor is connected to the OD and GND terminals on the
controller, and when connected, the outdoor temperature is automatically
displayed on the controller screen.
REMOTE INDOOR SENSOR
Allows selection of the optional remote sensor, Bard PN 8403-062(1125-
50), to determine indoor temperature. (NOTE: If no Remote Indoor
Sensor is connected during initial configuration process, the Remote Indoor
Sensor selection does not display in the Installer Menu. If a Remote Indoor
Sensor is connected at a later date, the controller will recognize the
connection, and the selection step will automatically be added to the
Installer Menu.) Options are REMOTE SENSOR ONLY, AVERAGE
WITH STAT, and NO REMOTE SENSOR. Selecting REMOTE
SENSOR ONLY, allows the indoor sensor to take control of temperature
sensing(if connected). Selecting AVERAGE WITH STAT, will average
the temperature of the on-board sensor to the indoor sensor, and selecting
NO REMOTE SENSOR, will use the on-board temperature sensor.
The REMOTE SENSOR is connected to the ID and GND on the controller
terminals.
24V CONTROL WIRING
All excess wire should be pushed back into the wall as far as possible. Excess
wire inside the thermostat plastic case may interfere with the air flow across
the temperature sensor.
THERMOSTAT CONNECTIONS
C – 24V Common for Control Circuit
R – 24V Supply for Control Circuit
W1/E – E Heat/ First Stage Heat
W2 – Second Stage Heat
O/B – Reversing Valve - energized in HEAT mode(B is default)
Y1 – 1st Stage Compressor / Cooling / Heating
Y2 – 2nd Stage Compressor / Cooling / Heating
Y0/D – Economizer / Dehumidifier output
*
A – Ventilation Output
G – Fan
L – Input for CS2000A or compressor fault
A+, B – Not Used.
GND – Ground **
OD – Outdoor Temperature Sensor **
ID – Indoor Temperature Sensor **
*Controller must be configured for “No Economizer”
for dehumidification control to be active
**Shielded twisted pair should be used for remote
Indoor and Outdoor Sensors to avoid any possible
interference from other electrical systems or other
external sources. The shield (drain) should be
connected to 24V Common (C) at the controller.
For specific 24V control circuit wiring refer to the Bard Low Voltage
Control Circuit Wiring manuals or the equipment installation
instructions packaged with each piece of equipment.