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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 8512
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have a pennco boiler 1606had. The red knobs close to the

Customer Question

Hi I have a pennco boiler 1606had. The red knobs close to the water glass should be turned off or on. It seem open all winter. Another question. Radiater made noises when on . Reading about this in internet do I have to low down valve
Submitted: 2 years ago.
Category: HVAC
Expert:  Phil replied 2 years ago.
Welcome! We keep going until you have all of the information you need.[b/]. Extensive training & coaching also available.
The red knobs should be off (turned clockwise until they close) when you are not actually reading the sight glass.
You need complete training on how to operate a steam boiler. that is covered in this manual
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