Start-Up Procedure - Autotrol Magnum Cv 942 Installation And Service Manual

8.0 Start-Up Procedure

The following steps provide general guidelines for the
start-up of a water conditioning system with a Magnum
control valve. Start up only one unit at a time. It is
advantageous to perform all 962, 962F, or 962M
programming prior to start-up.
1. Disconnect the electric power to the Magnum
control. Fill the brine tank with 6 inches of water but
do not add salt to the brine tank at this time.
2. The manual inlet and outlet valves should remain
closed with the manual bypass valve open.
3. Remove the cam cover to reveal camshaft. Verify
that the correct cam is inserted all the way into the
control. Access to the camshaft is required to
manually index the control valve to the desired
cycles of operation.
4. Advance the control to the Backwash position by
turning the camshaft COUNTERCLOCKWISE.
(Pilot flappers #2, #3, and #5 are OPEN.) THE
PROPER SIZE DRAIN LINE FLOW CONTROL FOR
THE SYSTEM BEING STARTED UP MUST BE
INSTALLED IN THE DRAIN LINE AS CLOSE TO
THE CONTROL VALVE AS POSSIBLE.
5. Slowly open the manual inlet valve. Water will begin
to flow to drain. Water pressure must build to
approximately 20 pounds per square inch (psi)
(137 kPa) in the control valve and tank for the
pilot/diaphragm valve system to operate properly.
Continue to open the manual inlet valve slowly.
(Note: large capacity systems will flow an extremely
large amount of water to drain while pressure
builds within the system). A definite change in the
flow to drain and sound, as the diaphragm
cartridges shift into position, will indicate that
adequate pressure has been built up in the system.
When the control valve does shift into the
backwash position, the air in the tank will be
pushed out through the drain line. Monitor the drain
line closely during this time. If backwash flow
during start-up is too high, resin or mineral could
be pushed out of the tank through the drain line.
The manual inlet valve can be closed slightly to
prevent resin loss, however, a minimum pressure
must be maintained within the system for
continued pilot/diaphragm valve operation.
Note: There are times when the system has a difficult
time building enough pressure for proper
pilot/diaphragm valve operation, such as low pressure
applications and larger pipe sizes. If water flows to
drain in all cycles and does not shut off in service,
typically, either the inlet valve is not open far enough or
the drain line flow control has not been installed in the
drain line.
6. After all the air has been purged from the tank,
allow the backwash water to flow to drain until
clear.
7. Advance the control camshaft to the Brine/ Rinse
position by rotating the camshaft
COUNTERCLOCKWISE. (Pilot flappers #B1, #B2,
#1, #3, and #5 are OPEN on softeners only--this
cycle is skipped on 3-cycle filters.) The water flow
to drain should reduce significantly and brine draw
should be observed. Reference the Performance
Data and Charts section.
8. Advance the control to the Fast Rinse position by
turning the camshaft COUNTERCLOCKWISE.
(Pilot flappers #1, #3, #4, and #5 are OPEN.) The
water flow to drain should increase significantly, to
approximately the same as the backwash flow.
9. Advance the control valve to the Refill position by
rotating the camshaft COUNTERCLOCKWISE.
(Pilot Flappers #B1, #B2, #1, #2, and #4 are OPEN.
Pilot Flapper #3 on Twin Alternating systems is also
OPEN. This cycle is skipped on 3-cycle filters). A
flow of water should be filling the brine tank. The
brine tank can be filled to the proper level if the
water height is known. There should be NO water
flow to drain. Reference the Performance Data
and Charts section.
10. Advance the control valve to a position just before
the Regeneration Complete position (softener) or
the Backwash Complete position (filter). Connect
electrical power to the controller. Allow the control
to drive the camshaft to the home position. Note:
See the special section 7.1.1 for Twin Alternating
control set-up.
11. Open the manual outlet valve completely and close
the manual bypass valve. Perform any 942 or 942F
control programming if necessary. Check the
effluent for soft or iron-free water. Add salt to the
brine tank.
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