Dual Fuel - Variable Speed Sl280V, El296V, Sl297Nv And Heat Pump - Lennox HARMONY III Installation, Setup And User Manual

5.3.6.3. Dual Fuel - Variable Speed SL280V, EL296V, SL297NV and Heat
Pump
Job Name:
Indoor Unit Model:
Outdoor Unit Model:
Miscellaneous Items:
9 Install Pressure Switch in the outdoor unit per Harmony III installation instructions (27W13 for
R410A or 27W12 for R22)
9 Install Balance Point Sensor (10Z23) as per installation instructions. Set to desired outdoor lock
out temperature for HP
9 Install Optional Defrost Tempering Sensor 67M41 (if used) per installation instructions. NOTE:
MUST be located in coil delta plate between furnace and coil
9 Install Discharge Air Sensor per installation instructions. The location of the sensor is CRITICAL
for proper system operation
Indoor Unit Setup:
√ Cut on-board link W914 DEHUM OR HARMONY (R to DS) on furnace IFC control (if not cut, fuse
will blow in Harmony III zone control board)
√ DIP switch settings (ON or OFF):
DIP ON or OFF Condition
Switch
1 OFF DIP switch 1 – leave at factory setting – ignored by Harmony III
2 OFF DIP switch 2 – leave at factory setting – ignored by Harmony III
DIP switches 3 and 4 – Blower off delay switch settings, set DIP
3 ON
switches 3 and 4 to ON (180 seconds)
DIP switches 4 and 5 – Determines heating blower "off" delay –
4 ON
recommended 180 seconds
5 OFF
DIP switches 5 and 6 – Cooling bode blower speed, set DIP switches
5 and 6 to OFF (High - Factory)
6 OFF
7 OFF
DIP Switches 7 and 8 – Cooling blower speed adjustment, set DIP
switches 7 and 8 to OFF (Factory Default)
8 OFF
9 OFF
DIP Switches 9 and 10 – Cooling mode blower Speed ramping, set
DIP switches 9 and 10 to OFF (A - Factory)
10 OFF
11 OFF
DIP Switches 11, 12 and 13 – Heating mode blower speed, set DIP
12 OFF
switches 11, 12 and 13 to OFF (Factory Default)
13 OFF
14 OFF
DIP Switches 14 and 15 – Continuous blower speed, set DIP switches
14 and 15 to OFF (38% of High Cool Speed - Factory Default)
15 OFF
Panel Setup:
9 Heating staging jumper Circle one: 85 90 100 110
120 130
9 Zone 1 PIAB 140F DAS Circle one: Yes No
jumper in place
9 Cooling staging jumper Circle one: 50 55 60
9 Cont. Air Reduction jumper Circle one: 0 25 50 75
9 Heating Air Reduction Circle one: 0 20 40
jumper
9 System Configuration Circle one: HP GAS
jumpers
9 Stages Circle one: 2COOL
9 Stages Circle one: 2HP 1HP
9 E-HEAT Stages Circle one: DF 1 2 3
9 Desired total system CFM Total system CFM per tables:
with all zones calling:
9 Zone 1 Name: Desired CFM:
9 Zone 2 Name: Desired CFM:
9 Zone 3 Name: Desired CFM:
9 Zone 4 Name: Desired CFM:
NOTE: All of the above are recommended "starting" positions for the furnace DIP switches and
Harmony III jumpers. Slight variations may be required during system start up and operation
checks.
Field Wiring Checklist
√ Indoor Unit Wiring Completed:
DS on Harmony III to DS on indoor unit connected
C on indoor unit connected to Harmony III transformer C
No connection to Y1 or Y2 on indoor unit.
√ Outdoor Unit Wiring Completed
√ Thermostat and Damper Wiring Completed
√ Discharge Sensor wired to Harmony III zoning system
58
Recommended 120 deg-F
See Harmony III install
instructions for info
Select desired discharge air
temp during cooling
Percentage airflow reduction
for continuous fan operation
Percentage air flow reduction
for heating mode
Set to GAS
1COOL Set to match condenser, 1 or
2 stage
Ignored for gas heat, non-heat
pump application
Ignored for gas heat, non-heat
pump application
Minimum CFM:
PIAB Setting: Actual CFM:
PIAB Setting: Actual CFM:
PIAB Setting: Actual CFM:
PIAB Setting: Actual CFM: