LENNOX K, Z Series Landmark and Raider Rooftop Units Instructions
- October 30, 2023
- Lennox
Table of Contents
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
- 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
| Type | Sensor | Cat # | Action |
|---|---|---|---|
| Enthalpy | Return Air | 23G26 | Measures return air enthalpy for dual |
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