Lennox iHarmony 10C16 Installation And Setup Manual page 13

Table 9. Damper Control Connections, Insertion Bridge
and Jumpers
Damper Control Label Description
i+ RSBus data positive
I-
RSBus data negative
R RSBus 24VAC power
DMPR XFMR / SYS XFMR Use factory default position.
Connect zone damper 24VAC transformer wires to terminals
DMPR R and XFMR C (see "Figure 3. Confirming Correct
DMPR XFMR
Transformer Phasing" on page 6). Factory default is
DMPR XFMR.
SENSE
G
24VAC
SENSE From the factory, an insertion bridge is installed
FREEZESTAT
24VAC
SENSE A HFC-410A high pressure switch (catalog number
PRESSURE SW
24VAC
SENSE Terminals for the included discharge air temperature
DATS
24VAC
Connect the IAQ device requiring blower operation
to the indoor unit control G terminal as illustrated
in the wiring diagrams located in the applicable
iComfort Series Thermostat Installer Guide.
Place a wire jumper between the indoor unit G
and damper control module G sense terminals.
This will allow the damper control module to adjust
the indoor blower CFM from continuous blower
speed to the correct zone heating or cooling blower
speed when any zone has a demand for heating or
cooling.
24VAC power (NOT USED)
between these two terminals. If a freezestat is to
be used, remove insertion bridge and replace with
connections to freezestat. See table 3 on page 5
for ordering freezestat. NOTE: If jumper is missing
and no freezestat is installed the outdoor unit will
not operate.
27W13) is required for applications with a Lennox
heat pump. This switch acts as a guard in case of
high head pressures during first- and second-stage
heating. The switch opens at 550 psig (3965 kPa)
and closes (resets) at 425 psig (3102 kPa).
sensor (DATS). See figure 3 for installation require-
ments.
Table 9. Damper Control Connections, Insertion Bridge
Damper Control Label Description
PWR
ZONE 5 (not used), ZONE
2/6, ZONE 3/7 and ZONE
4/8
(NOTE: ONLY ZONE
CONNECTIONS
2, 3 and 4) are used.)
DAMPER 1/5, DAMPER
2/6, DAMPER 3/7 and
DAMPER 4/8
DCOM
The factory default for this jumper is 1-4. Do not set jumper to
5-8, which is not is supported at this time. The damper control
ZONE 1 - 4 / 5 - 8 module only supports zones 1 through 4. Zone one being the
iComfort Wi-Fi or S30 thermostat, and 2 through 4 actually
being remote locations throughout the home.
LED Indicator
Color Description
Label/Name
Damper position LED. Illuminated when damper is power closed. LED will
DMPR1, 2, 3, 4
remain ON as as long as the damper is power-closed.
CNTRL Red Illuminated when system zoning is OFF.
This green LED should blink at 1Hz, 50% duty cycle as a
"heartbeat" indicating that the device is operat ing normally.
STATUS Green
During device soft disable state, this LED will blink 3 seconds ON
and 1 second OFF. See "Table 10. LEDs" on page 13 for further
details.
RSBus activity. Active communications with external device
RSBUS COMM Green
(Lennox communicating external device).
IN-ZONE
THERMOSTAT Green Active communication with in-zone thermostats.
COMM
PS Red Illuminate when pressure switch is open (high pressure detected).
13
and Jumpers
12VDC power.
D+
Data positive
D- Data negative
C
12VDC common
NC Normally closed.
NO
Normally opened.
Common
Table 10. LEDs