Speedaire 12F742 Manual De Instrucciones página 7

INsTallaTION INsTRUCTIONs (CONTINUED)
1. Speedaire drains must be installed with the direction of flow (as
indicated on the solenoid valve) to atmosphere. The solenoid
piping should be pitched downhill.
2. In case where normal installation of the drain is not possible it may be
piped to a higher discharge point provided that:
a.
b.
3. Care should be taken to ensure that pipe dope, pipe tape, scale or
metal chips are trapped before the solenoid valve seat. We recommend
the installation of the Y-strainer before the drain.
Pressure
Vessel
Figure 2
Maintenance: The drain will give you years of service if the drain is properly
maintained on a regular basis. It is recommended that the maintainence be
done monthly. Operating conditions will have to be taken into consideration
and the schedule adjusted accordingly. Do not apply electrical power to
the drain unless the unit is fully assembled. Failure to do so could result
in personal injury or damage to the drains.
1. Depressurize the pneumatic system.
2. Disconnect the electrical supply to the drain.
3. Remove the drain and flush the solenoid inlet and outlet ports with
a safe oil cutting detergent and water. Insure the water is kept away
from all wiring and the drain box to prevent damage to the electrical
components.
4. Remove strainer plug-clean filter sump and reassemble.
5. Replace the drain in the system and reconnect the power.
Solenoid Disassembly: If drain is bleeding air it may be necessary to
disassemble the drain solenoid completely while it is out of the system
to clear the seat of the foreign material.
Tools Needed: Small slot screwdriver. Adjustable crescent wrench.
1. Be sure electrical power is disconnected.
2. Remove cover of the drain assembly.
A trap test port is provided to check for plugging;
The blow-down cycle is adjusted to account for increased volume.
Automatic Electric Drain
Valve (Always in Vertical
Upright Position)
Y-Strainer
Shut-Off Valves
Manual Drain
Pressure
Automatic Electric Drain
Vessel
Valve (Always in Vertical
Upright Position)
Combi Valve
Discharge
with Handle
Manual Drain
Figure 3
Discharge
Shut-Off Valves
5