4
3. Install the leaving air sensor (LAT) in the supply air, ahead of the bypass take-off. Sensor wires
are connected to the
S S
terminals on the controller
(J).
The LAT sensor leads may be
extended using standard 18/2 thermostat wire.
4. The leaving air sensor (LAT) is calibrated to the controller at the factory. However, the
calibration should be checked as part of the system setup procedures. If adjustments are
required, use the Blue potentiometer labeled R44 located in the upper left hand corner of the
GEN II
controller. Screw the pot clockwise to lower the display temperature and counter -
clockwise to raise the temperature.
NOTE
: The display will update every 10 seconds.
5. Confirm you have connected the
RX TX
communication wires and
R
and
C
from the
thermostats to the controller (
F&K
), F = (R C), K = (TX RX). (Communication wire maximum is
4,000 ft. from the Command Center to the farthest
ModStat
,
DIGICOM
or
DIGIHP
.)
6. Connect the output wires from the controller to the HVAC system using standard 18 ga.
thermostat wire.
The LAT sensor leads may be extended using standard 18/2 thermostat wire.
Gas Electric - Basic GEN II
Controller Configuration
The
GEN II
is equipped with a
Digital Display (O) on the GEN II controller that constantly
displays Leaving Air Temperature from the unit
. The display and 3 buttons beneath the display
provide the installing contractor the ability to tailor the system to your specific application.
The
GEN II
controller is shipped from the factory configured for basic Gas/Electric operation.
However, the following should be checked as part of the initial installation setup procedures:
1.
EH
jumper
(A)
is installed by the factory on one pin for normal gas heat operation where the fan
is controlled by the HVAC system fan control. When a fan output is required from the GEN II
controller on a call for heat, place the
EH
jumper over both pins for several seconds and then
remove. Place the jumper tab on one pin.
