Lennox Harmony III Installation Instructions Manual page 15

Harmony IIIt Zone Control System Option 2 − Lennox Heat Pump &
PRESSURE SWITCH
DAMPERS(Spring
open, power close)
DISCHARGE AIR SENSOR
88K38 (included)
Vacation OFF for individual zone
control.
Vacation ON for all zones to be
conditioned at the same time.
Emergency Heat OFF to allow
Heat Pump to provide heat.
Emergency Heat ON to force
auxiliary (backup) heat to provide
all heating (disallows heat pump
from providing any heat).
IMPORTANT! Connectivity is NOT COMPLETE until all electrical adjustments (jumpers and wiring changes) have been made.
See Electrical Adjustments for SureLight
Lennox Variable-Speed Coil Blower
21J18 (R−22)
51M08 (R−410A
Thermostat 4
PS PS BPS BPS W C Y G R
Damper1
NC
NO
C
Damper2
NC
heat/cool staging
NO jumper settings − page
11.
C
Damper3
Heating
Staging Temp
NC
85
90
NO
100
C 110
120
130
Damper4
Cooling
NC
Staging Temp
50
NO
55
NotUsed
60
C
Cont. Air
Reduction
das 0%
25%
50%
75%
Heating Air '
Reduction
air reduction jumper
0%
settings − page 9.
20%
40%
ESD CAUTION
OFF
TOUCH A GROUNDED METAL
Vacation
OBJECT BEFORE TOUCHING
Mode
Selector THE CIRCUIT BOARD
ON
LENNOX
OFF Harmony IIIt
V3.0 2004
E−Heat
Fault
Selector
TDO Recall
ON
damper 4 damper 3 Damper 2 Damper 1
®
Board (page 6) and for BDC3 Board (page 7).
Figure 20
Thermostat 2
W C Y G R
Thermostat 3
W C Y G R
W C Y G R
piab jumper settings −
page 8.
Zone1 Zone3
PIAB PIAB
0% OFF
10%
0%
20% 10%
30% 20%
40% 30%
50% 40%
60% 50%
70% 60%
80% 70%
90% 80%
100% 90%
100%
Zone2 Zone4
PIAB PIAB
OFF
OFF
0%
0%
10%
10%
20%
20%
30%
30%
40%
40%
50%
50%
60%
60%
70%
70%
80%
80%
90%
90%
100%
100%
SYSTEM E−HEAT
Configuration Stages
HP GAS
DF
1
2COOL 1COOL
2
2HP 1HP
3
System Configuration & E−Heat jumper
settings − page 11.
E−Heat Vacation
Mode Mode Fan Cooling ElectHeating
Page 15
Thermostat 1
W C Y G R
24
VAC
C R
W C Y G R
IMPORTANT
Connect
thermostat-gauge
wire to C" terminal
on Heat Pump
terminal strip
NOTE − Do not wire Y" wire(s) from the
Harmony IIIt zone control board to the coil
blower unit terminal strip. Doing so causes
the motor to search" for proper CFM.
HEAT PUMP
Y1
Y2
O
RC
W1−Def
Equipment
RH
G
W1
W2
W3
DS
Equipment
VARIABLE SPEED
BLOWER COIL
Heating Status
HARMONY IIIT SERIES
120
VAC
R
C
Y1
Y2
O
W1
R
G
W1
W2
C
DS