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5.3.6. Installation Setup Worksheets
5.3.6.1.
Dual Fuel - Indoor Unit Honeywell 2-Stage IFC Control and Heat
Pump
Job Name:
Indoor Unit Model:
Outdoor Unit Model:
Miscellaneous Items:
9
Install Pressure Switch in the outdoor unit per this instructions (27W13 for R410A or 21J18 for
R22)
9
Install Balance Point Sensor (10Z23) as per this installation instruction. 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:
9
Cut on-board link W914 DEHUM OR HARMONY (R to DS) on furnace IFC control (if not cut,
fuse will blow in zone control board)
9
Cut and tape wires from pin # 2 and pin #13 on plug J46 of the VSM wiring harness routed from
the motor to the Furnace Integrated control.
9
Furnace IFC Control DIP switch settings (ON or OFF):
DIP Switch
ON or OFF
Condition
1
OFF
DIP switch 1 must be set to OFF for two stage heating
operation
2
OFF
DIP switch 2 determines second stage heat time delay
and is ignored by Harmony III zoning system
3
ON
DIP switches 3 and 4 determines heating blower off
delay, recommended is 180 sec
4
ON
5
DIP switches 5 and 6 determines second stage cooling
blower speed or maximum system air vol.
6
7
DIP switches 7 and 8 determine blower “adjust” setting
for maximum system air volume
8
9
OFF
DIP switches 9 and 10 determines cooling blower
ramping profile and is ignored by Harmony III zoning
system
10
OFF
11
OFF
DIP switches 11 and 12 determines heating blower
speed and is ignored by Harmony III zoning system
12
ON
Panel Setup:
√ Heating staging jumper
Circle one: 85 90 100
110 120 130
Recommended 120 deg-F
√ Zone 1 PIAB 140F DAS
jumper in place
Circle one: Yes No
See “1.10.4. Zone 1 PIAB Jumpers –
140ºF DAS” on page 10.
√ Cooling staging jumper
Circle one: 50 55 60
Select desired discharge air temp
during cooling
√ Cont. Air Reduction jumper
Circle one: 0 25 50
75
Percentage airflow reduction for
continuous fan operation
√ Heating Air Reduction jumper
Circle one: 0 20 40
Percentage air flow reduction for
heating mode
√ System Configuration
jumpers
Circle one: HP GAS
Set to GAS
√ Stages
Circle one: 2COOL
1COOL
Set to match condenser, 1 or 2 stage
√ Stages
Circle one: 2HP 1HP
Ignored for gas heat, non-heat pump
application
√ E-HEAT Stages
Circle one: DF 1 2 3
Ignored for gas heat, non-heat pump
application
√ Desired total system CFM
with all zones calling:
Total system CFM per
tables:
Minimum CFM:
√ Zone 1
Name:
Desired CFM:
PIAB Setting:
Actual CFM:
√ Zone 2
Name:
Desired CFM:
PIAB Setting:
Actual CFM:
√ Zone 3
Name:
Desired CFM:
PIAB Setting:
Actual CFM:
√ Zone 4
Name:
Desired CFM:
PIAB Setting:
Actual CFM:
NOTE:
All of the above are recommended starting positions for 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
√
Heat Pump Pressure Switch wired to Harmony III zoning system
Summary of Contents for Harmony III
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