Lennox Harmony III Installation Instructions

AIR HANDLERS
Page 42
505023M 08/11
Harmony IIIt Installation Setup Worksheets (continued)
CBX32MV/CBX40UHV – Cooling Only or Cooling with Hot Water Coil (non−Heat Pump)
Job Name: Indoor Unit Model: Outdoor Unit Model:
CBX40UHV and CBX32MV Revision 06 Indoor Unit setup:
- Cut on−board link R to DS DEHUM or HARMONY"
- For Hot Water Coil OnlyAdd K212 Relay & wire per Harmony III wiring detail.
NOTE − Discharge air sensor must be located down stream of cooling coil and hot water coil.
- Air Handler Control jumper settings:
COOL: This setting, along w/ ADJUST setting, determines maximum system CFM (See blower tables)
ADJUST: Setting affects both heating and cooling blower speeds (see blower tables to determine setting)
HEAT: HIGH Heating blower speed selectioin – Ignored by Harmony III
DELAY: 4 Cooling blower ramping – Ignored by Harmony III
BLOWER ONLY CFM: Continuous fan speed – Ignored by Harmony III
EVENHEAT: EVENHEAT is not used with Harmony III
CBX32MV prior to Revision 06 Indoor Unit setup:
- Remove DS to Y1 jumper
- For Hot Water Coil OnlyAdd K212 Relay & wire per Harmony III wiring detail.
NOTE − Discharge air sensor must be located down stream of cooling coil and hot water coil.
- BDC3 control clip jumper settings:
COOL: This setting, along w/ ADJUST setting, determines maximum system CFM (See blower tables)
ADJUST: Setting affects both heating and cooling blower speeds (see blower tables to determine setting)
HEAT: 4 Heating blower speed selectioin – Ignored by Harmony III
DELAY: 4 Cooling blower ramping – Ignored by Harmony III
Harmony IIIt Panel setup:
- Heating staging jumper (circle one): 85 90 100 110 120 130 (Cooling only – setting does not matter; Hot water − set at 120)
- Zone 1 PIAB 140F DAS jumper in place (circle one): Yes No (Cooling only – setting does not matter)
- Cooling staging jumper (circle one): 50 55 60 (select desired discharge air temp during cooling–50 deg−F suggested)
- Cont. Air Reduction jumper (circle one): 0 25 50 75 (% airflow reduction for continuous fan operation)
- Heating Air Reduction jumper (circle one): 0 20 40 ( Cooling only – setting does not matter; Hot Water set at % 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; non−heat pump application – setting does not matter)
- E−HEAT Stages (circle one): DF 1 2 3 (non−heat pump – setting does not matter )
- Desired total system cfm with all zones calling ___________ cfm, Actual total system cfm− ___________
- CB unit minimum" cfm ____________ (determined by unit spec listed below unit blower table)
- Zone 1 – Desired cfm ____________ PIAB Setting ____________% Actual cfm ____________
- Zone 2 – Desired cfm ____________ PIAB Setting ____________% Actual cfm ____________
- Zone 3 – Desired cfm ____________ PIAB Setting ____________% Actual cfm ____________
- Zone 4 – Desired cfm ____________ PIAB Setting ____________% Actual cfm ____________
NOTEAll of the above are recommended starting positions for DIP switches and Harmony III jumpers. Slight variations may be required during sys-
tem 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 and if a hot water coil is used, the sensor must be located down stream of the hot water coil.

Lennox Harmony III Specifications

General

Brand	Lennox
Model	Harmony III
Category	Control Systems
Language	English