Lennox CBX32MV-024/030 - Electric Heat

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CBX32MV

ECB40-9CB P VOLTAGE SHOWN

Primary Limit S15 and

Secondary Limit S20

Relay K32

Relay K33

Elements HE1 and HE2

Location of CB1

Figure 38. Electric Heat

Main Page

Table of Contents1
Imtroduction1
Specifications2
Optional Accessories3
Model Identification3
Blower Data3
Electric Heat Data9
CBX32MV Upflow and Downflow Unit Dimensions13
Horizontal LH/RH Unit Dimensions14
Installation Clearances15
General15
Installation Requirements15
- Optional Unit Side Stand16
- Upflow Configuration16
- Horizontal Right-Hand Discharge Application16
- Horizontal Left-Hand Discharge Application17
- Field Modification for Left-Hand Discharge17
- Suspending Horizontal Unit17
- Downflow Application18
- Downflow Drip Shields18
- Downflow Discharge Position19
- Applying Foam Tape to Drip Shield19
- Combustible Flooring Additive Base19
Brazing Connections19
- Best Practices22
- Main Drain22
- Overflow Drain22
Condensate Drain Requirements22
- Typical Main and Overflow Drain Installations23
- Filter Dimensions23
Inspecting and Replacing Filters23
Sealing the Unit23
Field Control Wiring24
- Control (Field) Wiring — Communicating System25
- Control — Cooling Application26
- Control — Heat Pump26
- Cooling Application Non-Communicating27
- Heat Pump Application Non-Communicating27
- Discharge Sensor (DAT)28
- Air Handler Control 9-Pin Connector28
- Control Connections and Wiring Requirements28
- Sensor Connections and Wiring Requirements28
- Air Handler Control Connections29
- Run Length — Non-Communicating29
- Air Handler Configuration30
- Push Button31
Air Handler Control Button, Display and Jumpers31
- Display32
- AHC System Status Codes32
- AHC Configuration, Test and Error Recall Function33
- AHC Control Single Character Display Alert Codes34
- Air Handler Control Checkout36
Configuring Unit36
- Configure Unit Size Codes37
- Heat Mode Selection38
- EVENHEAT Operation39
- Heat Pump Operation41
- Cooling Operation42
- Error Code / Recall Mode43
- Pre-Start-Up Checks44
- Check Cooling Operation44
Indoor Blower Test44
Checkout Procedures44
- Emergency Heat45
- Heating45
Operation45
Maintenance45
Repairing Damaged Insulation46
Cabinet Insulation46
Sequence of Operations47
- Cooling Operation and Jumper Summary48
- CBX32MV with Comfortsenset 7000 Thermostat49
- ECB40-2.5, 4, 5 and ECB40-4CB, 5CB 208/230V Single Phase51
- ECB40-6 and ECB40-6CB 208/230V Single Phase52
- ECB40‐8 and ECB40-8CB - 208/230V Single Phase53
- ECB40‐9CB - 208/230V Single Phase54
- ECB40-12.5CB, ‐15CB - 208/230V Single Phase55
- ECB40‐20CB - 208/230V Single Phase56
- ECB40‐25CB - 208/230V Single Phase57
- ECB40-8, 10 and ECB40‐15CB - 208/230V Three Phase58
- ECB40‐20CB, ECB25CB - 208/230V Three Phase59
Unit Components60
- Transformer61
- Plastic Drain Pans61
- Discharge Sensor61
- Variable Speed Blower Motor61
- Indoor Blower Motor Control Troubleshooting62
- Internal Operation62
- Initial Power up62
- Motor Start‐Up62
- Regal-Beloit / Gemtech 3.0 — Troubleshooting63
- Regal-Beloit — Blower B3 Harness Connectors63
- Additional Indoor Blower Motor Troubleshooting64
- Typical Digital Multimeter64
- Module Test64
- Motor Test64
- Indoor Blower Motor Control Connections65
- J48 Test65
- Optional Electric Heat (ECB40)66
- Matchup and Ratings66
- Electric Heat Components66
- J49 Test66
- Electric Heat67

Lennox CBX32MV-024/030 - Electric Heat

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