PTL
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- Percentage Timer Control
- Primary control for RenewAire Residential ERV Models EV90, EV130, EV200 and EV300
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- Runs unit an adjustable amount of time every hour
- Constant “on” and “off” capability
- Only two low voltage control wires needed from PTL back to ERV
- Unit derives power from same two wire proprietary control connection
- Can accommodate from one to six PBLs (see PBL - Push Button Lighted)
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