Optional Accessories Checklist
Refer to the respective sections in this Installation, Operation and Maintenance Manual for detailed information. Refer to wiring diagram in unit control center to determine what electrical accessories were provided.
Provided with Unit?
Frost Control Application / Operation section: | Setting | Factory Default | ||
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Yes | No | Frost Control set point |
| 5ºF |
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| Differential |
| 2ºF |
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| Timer |
| Refer to IOM |
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Yes | No | Frost Control Modulating |
| Refer to IOM |
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Economizer Application / Operation section: |
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Yes | No | Economizer (temperature) |
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| Set point |
| 65ºF |
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| Offset |
| 20ºF |
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| Differential |
| 2ºF |
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Yes | No | Economizer (enthalpy) |
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| Set point |
| D |
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Yes | No | Economizer (modulating) |
| Refer to IOM |
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Optional Accessories section: |
| Operational |
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Yes | No | Wheel Rotation Sensor | Yes | No | N/A |
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Yes | No | OA Dirty Filter Sensor | Yes | No | N/A |
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Yes | No | EA Dirty Filter Sensor | Yes | No | N/A |
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Yes | No | CO2 Sensor | Yes | No | N/A |
Yes | No | Service Outlet | Yes | No | N/A |
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Yes | No | Vapor Tight Lights | Yes | No | N/A |
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Yes | No | Remote Control Panel | Yes | No | N/A |
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Variable Frequency Drives section: |
| Operational |
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Yes | No | Blower VFDs | Yes | No | N/A |
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Yes | No | Wheel VFD | Yes | No | N/A |
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Damper section: |
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| Operational |
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Yes | No | Outdoor Air Damper | Yes | No | N/A |
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Yes | No | Exhaust Air Damper | Yes | No | N/A |
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Model ERV Energy Recovery Unit 23
