LENNOX K, Z Series Landmark and Raider Rooftop Units Instructions

LENNOX K, Z Series Landmark and Raider Rooftop Units Instructions

COMMERCIAL TRAINING TOOLBOX TIPS

Economizer Setup for KG/KC/KH and ZG/ZC/ZH Units with a Siemens Climatix ECO Economizer Controller

Applies to Lennox Landmark and Raider Rooftop Units that have a factory or field installed economizer with a Siemen’s Climatix ECO controller

Helpful Resources

1. Installation and service literature on LennoxCommercial.com or LennoxPros.com COM-01-045
   An economizer uses a combination of sensible and enthalpy sensors to determine when outside air is suitable for free cooling. The type and number of sensors depends on the controller.
   

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Siemens Climatix ECO Economizer Control Sensors

enthalpy(differential enthalpy) functions. Compares with Outside Air enthalpy sensor for control.
Sensible| Return Air| 59W63| Measures return air temperature for differential sensible control.
Enthalpy| Outside Air| 23G26| Measures outside air enthalpy for dual enthalpy(differential enthalpy) functions.
Sensible| Outside Air| 59W63| Compares with Outside Air enthalpy sensor for control.
Sensible| Discharge Air| 59W63| Used to connect to mobile device apMeasures discharge air after the cooling coil.
WLAN Stick| Wi-Fi dongle| 23K58| Used to connect to mobile device app

References

• Commercial Air Conditioning & Heating Units | Lennox Commercial
• LennoxPros - HVAC Lennox Supplier | LennoxPROs.com
• Commercial Air Conditioning & Heating Units | Lennox Commercial
• Lennox Commercial Technical Training
• Commercial Training Toolbox Tips

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