I just recently moved into a renovated apartment and the first 2 nights I noticed it was quite cold. I checked the zone valve which was just replaced, 1/2 inch Honeywell ZV on a 3/4' base heater, the arrow was pointing to Hot water, One shut off valve is hot the other is cold, Arrow was facing the hot. So I turned it around and instance heat in the house, all good! the arrow is now facing the flow of water, few hours pass and now we notice a loud bang and shake of the copper through the rooms. All night long whenever it shuts..
Ive done research and removed one spring.. no good. I called my landlord they had a plumber come in and he turned it back around, and said it doesnt matter about the flow it goes this way.. Im a professional sprinkler flitter and I install all parts with arrows in the direction of flow. The plumber didnt understand what i ment.. but the heat does work.. and its quite.... but it didnt work backwards when i moved in??!!
Ive done research and removed one spring.. no good. I called my landlord they had a plumber come in and he turned it back around, and said it doesnt matter about the flow it goes this way.. Im a professional sprinkler flitter and I install all parts with arrows in the direction of flow. The plumber didnt understand what i ment.. but the heat does work.. and its quite.... but it didnt work backwards when i moved in??!!
