Bird Electronic Econoload 8730 Series, Инструкция

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Maintenance
15
Repair
Flow Switch
To replace the water flow switch, proceed as follows:
1. Turn off the RF power and interlock circuitry, and disconnect the
RF line and ac line.
2. Disconnect the water flow switch leads at the control box.
3. Remove the defective switch and replace it..
4. Connect the flow switch leads to terminals 3 and 5.
5. Turn on the interlock ac power.
6. Turn on the coolant system and make sure the flow switch
functions properly.
Time Delay Switch
The time delay relay cannot be repaired in the field. To replace it:
1. Turn off the RF power and interlock circuitry, and disconnect the
RF line and ac line.
2. Open the control box door by turning the slotted screw 1/4 turn.
3. Loosen the screw at the top of the relay clamp, then press the
clamp legs in slightly to release the relay.
4. Pull the relay cartridge straight out of its socket.
5. Insert the new relay cartridge and rotate it to align the opening in
the cartridge with the center post nub in the socket.
6. Make sure that the clamping prongs fit into their matching slots.
Tighten the clamp screw to secure it.
7. Turn on the interlock ac power.
8. Turn on the coolant system and make sure the time delay switch
functions properly.
WARNING
Never attempt to connect or disconnect RF equipment from the
transmission line while RF power is being applied.
Leaking RF energy is a potential health hazard.
WARNING
Disconnect the unit from all power sources before servicing.
The unit may be energized from multiple sources.
The potential for electric shock exists.