- alve installation before and after heat meter and filter, easy for heat meter maintenance and filter cleaning.
- Please notice valve opening sequence: open slowly valve before heat meter in inlet water side firstly, then open valve after heat meter outlet water side. Finally open valve in back water pipeline, to protect heat meter due to sand, stone etc. impuritywhich inside of pipeline of lower of heat meter flowing back to meter body.
- Notice: opening valve action should be slowly, to prevent water hammer effect during opening valve quickly, then damage heat meter and components.
- During heat meter running, try to avoid valve closing completely in pipeline, to prevent heat meter freezing without heat water flowing in pipeline for long time.
- If heat meter installation outdoor, should have protection measurement, to prevent damage incidentally and human destruction.
- Before heat meter installation, should clean pipeline and keep enough straight pipe in inlet and outlet. Inlet straight pipe length before heat meter is not less than
- 10 times of pipe diameter length, outlet straight pipe length after heat meter is not less than 5 times of pipe diameter length. Installation at the confluence between
- two back water pipeline, should have 10 times pipe diameter of straight pipe between heat meter and joint(like T joint), to ensure water temperature mixture averagely in two pipes.
- Water in heat system should be cleaning, demineralization and no dirt to ensure the running of heat meter smoothly, no block and damage. If flowing rate reduction significantly in the moment in heat exchanger system working normally, it means more dirt inside of filter and narrows pipeline, so flowing rate reduction. Should clean filter timely and change filter net in necessary.
- Heat meter is belonging to measuring instrument, must calibrate regularly according to national standards and change battery in necessary during calibration.
- Heat meter is belonging to accurate instrument, put up and down gently and carefully, forbidden to press and hit calculator and temperature sensor etc. key components. Forbidden to lift calculator and temperature sensor’s connection wire and other vulnerable parts.
- Forbidden to close high temperature heat source, like electric welding, to avoid instrument damage and influence use.
- Flow sensor had flow direction request, water flowing direction should be same with flowing sensor arrow direction.
Post time: Jun-30-2023