Alfa Laval AquaMicro, Инструкция по установке и обслуживанию

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Alfa Laval Micro
Installation and service instruction
57
Change the heating circuit supply temperature sensor 15.6
1. Disconnect the electrical power supply.
2. Disconnect the quick-connect terminals and replace the
sensor with a new one.
Picture 54
Change the outdoor temperature sensor 15.7
1. Disconnect the electrical power supply.
2. Unscrew the lid of the outdoor temperature sensor by turning it anti-
clockwise.
3. Unscrew the cables.
4. Loosen the cable fitting.
5. Install a new outdoor temperature sensor.
Picture 55
Change the differential pressure control valve 15.8
Before starting out repairs always close the primary supply and return shutoff valves and drain
the system with the draining valves.
After finishing repair; open the shutoff valves. Start with primary supply and then the return lines,
in order to avoid pollutions in the system. Open up the valves slowly to avoid pressure surges
1. Use a spanner to remove the differential pressure control valve.
Note the position of the P/T plugs on the valve.
2. Mount a new valve; and take especially care to the P/T plugs
position.
Picture 56