AIR HANDLERS
Page 41
HARMONY IIIT ZONE CONTROL SYSTEM
Harmony IIIt Installation Setup Worksheets (continued)
CBX32MV/CBX40UHVHeat Pump; Electric Strip Heat
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"
- Remove any factory−installed jumpers bars from W1 to W2 or W2 to W3.
- 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
- The wire from K20 terminal 4 to BDC3 board JP1 pin 2 must be re−routed to establish an electrical connection between K20 terminal 4 and terminal G. Cut
the wire near JP1 pin 2. Using the wire still connected to K20 terminal 4, strip the cut end and connect it to terminal G. Tape the exposed end of the short
JP1pin 2 wire (See Harmony III Installation Instructions for more details).
- Remove any factory−installed jumpers between terminal R and W1, W2, or W3.
- 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 (Recommended 90 deg−F)
- Zone 1 PIAB 140F DAS jumper in place (circle one): Yes No
- Cooling staging jumper (circle one): 50 55 60 (select desired discharge air temp during cooling to stage compressor)
- 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 (Must be set to 0% on heat pump systems)
- System Configuration jumpers (circle one): HP GAS (Set to HP)
- Stages (circle one): 2COOL 1COOL (Set to match condenser, 1 or 2 stage)
- Stages (circle one): 2HP 1HP (Set to heat pump stages, 1 or 2 stage)
- E−HEAT Stages (circle one): DF 1 2 3 (Set to # of strip ht stages (<8KW=1)(>8KW & <30KW=2)( 30KW=3)
- Desired total system cfm with all zones calling− ___________ cfm, Actual total system cfm− ___________
- CB unit minimum" cfm ____________ (determined by unit spec as 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 ____________
NOTEAll 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.
- Heat Pump Pressure Switch wired to Harmony III.
To Next Page
Loading...
Need help?
General
