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VENTILATOR WIRING
The Evolutionr Damper Control can control a Carrier Heat
Recovery Ventilator or Energy Recovery Ventilator (HRV / ERV).
Connect the four wires from the ventilator control board (see
ventilator installation instructions for details) to the connector
labeled YRGB. This label identifies the color of the wire to match
the ventilator wire colors (Y=yellow, R=red, G=green, B=blue or
black). If you have two Evolutionr Damper Controls, connect the
ventilator to the control for zones 1 through 4.
LEAVING AIR TEMPERATURE / HEAT PUMP TEMPER-
ATURE (LAT / HPT) SENSORS
These inputs on the Evolutionr Damper Control are used only for
diagnostic purposes and NOT required for regular use.
Traditionally, the LAT/HPT sensors were required for temperature
and equipment monitoring. The Evolutionr Zoning System does
not require these because the Evolutionr Connext wall control
algorithms will perform temperature and airflow management
without the use of these sensors. If desired, one or both sensors
may be used to monitor leaving air temperature and/or indoor coil
air temperature. Consideration and/or flexibility will now permit
using one of these sensors in the return air duct giving the dealer an
option to view both entering and leaving air temperature at the
Evolutionr Connext wall control. If applied, connect sensors to
the LAT / HPT terminals (See Fig. 9, System Wiring, for
connection to the Evolutionr Damper Control). LAT is monitored
by both AC and HP systems. LAT and HPT are both monitored
only in HP systems.
To install - - Locate the LAT sensor in the main supply trunk after
the heating and cooling coil and before the first branch. The LAT
sensor is radiant shielded to prevent heat from affecting correct air
temperature.
1. Drill a 1/4 inch hole at the location in the supply trunk
where the sensor will be installed.
2. Insert the sensor in the hole and use it as a template to mark
the two mounting holes.
3. Drill two 1/16 inch holes to accept #6 screws through pre- -
drilled holes in the duct temperature sensor backplate.
4. Use two #6 sheet metal screws to mount the duct tempera-
ture sensor to the unit.
5. Connect the sensor to 2- -conductor wire using the provided
wire nuts.
The HPT sensor (in heat pump applications) measures the
temperature of the air leaving the indoor coil. The sensor is
installed downstream of the indoor coil, but before the electric
heaters. It can be installed through the wall of the fan coil or may
be located entirely inside the fan coil near the blower inlet. Anchor
firmly in place with cable ties so that it cannot interfere with the
blower wheel (See Fig. 9).
LED INDICATORS
Under normal operation, the Yellow and Green LEDs will be on
continuously (solid). If the Evolutionr Damper Control does not
receive communications with the Evolutionr Connext Wall
Control, the Green LED will not be on. If there are faults present,
the Yellow LED indicator will blink a two- -digit status code. The
first digit will blink at a fast rate, and the second at a slow rate.
STATUS CODE
16 =
24 =
45 =
46 =
FUSE
A 1A automotive type fuse is used to protect the Evolutionr
Damper Control from over current on the damper drive outputs. If
this fuse fails, the damper wiring should be inspected for shorts.
Also, no more than five damper motors should be connected to a
single damper output. The fuse should always be replaced with an
identical 3A automotive type.
Step 6 —
Additional Damper Control Board Setup
If you have more than four zones, a second Evolutionr Damper
Control must be used and both dip switch settings on the second
board supporting zones 5 through 8 must be moved to the right.
The ABCD bus connector must be wired between both Evolutionr
Damper Controls.
Step 7 — Transformer Requirements
The Evolutionr Zoning System has a lower power draw than the
system transformer from previous controls. It also drives only two
zone damper outputs at a time. As a result, up to eight zones each
with up to five dampers, plus a smart sensor, can be handled
without increasing the size of the system transformer or adding a
second zoning transformer.
Use of the transformer provided in the furnace or fan coil is
recommended without change in all zoning applications except
those having a System Access Module (SAM). The SAM requires
a separate transformer.
For those who still want more transformer capacity, a 60 VA
system transformer may be used in place of the supplied 40 VA
part.
Step 8 — System Start- -up
Follow the system start- -up process outlined in the Evolutionr
Connext wall control Installation Instructions for details.
6
DESCRIPTION
Communication Failure
Damper Fuse Failed
Board Failure
Low Input Voltage
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