Xylem Bell & Gossett Ecocirc+ 20-18, Инструкция по установке, эксплуатации и обслуживанию

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The pump can be used with water/propylene glycol mixtures up to 50% with a
maximum viscosity of 50cST at 14°F (-10°C). The pump has built-in overload and
thermal protection to protect the pump from overload due to increased fluid
viscosity. Pump performance is based on 77°F (25°C). Therefore pumping of
glycol mixtures will affect max performance, depending on mixture
concentration and temperature.
8.6 Maximum operating pressure
• 1 MPa (145 psi)
8.7 Sound pressure
• ≤43 dBA ±2
dBA is measured in free field at a distance of 1 meter from the pump.
8.8 Radio data
Band Frequency
ISM 2.4 GHz
RF ≤ 2.5 mW (+ 4 dBm)
8 Technical Specification
32 20-18 Installation, Operation, and Maintenance Manual