Section B - Using The Quantum For Power Flushing; System Inspection And Preparation - Kamco CLEARFLOW CF90: QUANTUM Operating & Service Manual

SECTION B – USING THE QUANTUM FOR POWER FLUSHING
INTRODUCTION
The QUANTUM pump is designed to power flush
heating systems with minimal dismantling, by
circulating water and flushing chemicals at high
velocity, and then purging the dirty water from the
system with a high flow of fresh, clean, water.
Radiators may be individually flushed without
removing or disconnecting them from the system.
Your Quantum pump may be used with any
commercially available flushing and descaling
chemical, including strong acids or alkalis.

SYSTEM INSPECTION AND PREPARATION

1. Turn on heating system in order to identify
problem flow areas, cold radiators, or those with
cold spots, etc. Switch off system.
2. Note how many turns are required to shut off
radiator and lock shield valves so that settings
may be re-instated after flushing to avoid system
balancing. Use a copy of the chart provided to
record the number of turns.
Open all (both sides of radiator) valves fully.
3. Set any thermostatic radiator valves to the fully
open position. Remove the heads and check that
the plunger pin moves freely. Check that diverter
or zone valves are in the fully open position,
setting manually if necessary.
4. If an anti-gravity / check valve is present, this must
be by-passed or bridged to allow the flow
reversing action to be used. It may be possible to
dissemble the anti-gravity valve, and remove
internal components.
5. Tie up the ball cock or turn off the mains water
supply by another means.
6 .Drain enough water from the system to empty the
F&E tank. This can be drained into the Quantum
if it has been connected (connection details are in
the next section).
7. With vented systems, it is necessary to cap off, or
loop together, the expansion and cold feed pipes
in order to avoid the powerful Quantum filling and
overflowing the expansion tank.
The F&E pipes may be capped with push fit end
caps, such as Speedfit, Prestek, or Hep2O, or a
temporary compression fitting gate valve.
Issue: Mar 2008 Section B – Using the Quantum for Power Flushing
Pumps with 220 volt motors are single phase, for use
on a standard domestic supply. A five amp fuse
should be fitted in the plug top. We recommend the
use of a residual current circuit breaker plug or
adapter for extra protection.
Looping the feed and expansion pipes together
will enable these pipes to be flushed during the
cleansing process, which can be beneficial when
the cold feed pipe contains corrosion deposits.
NOTE 1: This will only be effective when the F&E
pipes are not close coupled, or connected via an
air separator, and may not remove deposits
which have hardened over a long period of time.
NOTE 2: The looping connection may be made with
any sturdy flexible tubing, such as Quantum
hose, or Hep2O, but should incorporate a valve
in the loop to close the circuit when flushing
individual radiators.
Capping or looping the F&E pipes are only
temporary measures, which must be removed
after the flushing process.
ENGINEER'S TIP: Don't drain water from the system
to lower the water level in the F&E tank until after
the Quantum pump has been connected into the
system.
Tie up the f & e tank ballcock or otherwise turn off
the cold water feed, and return to the Quantum
pump. Open both the isolating valves, without
switching on the electric motor. The head of
water in the house means that heating system
water will run down the flow and return hoses and
into the Quantum tank. Let the water run until the
tank is half full, and close both isolating valves.
You should now have emptied the f & e tank
sufficiently to carry out the necessary valving or
capping off of the cold feed.
NOTE: If there is a large amount of sludge or
slime present in the f & e tank it must be cleaned
manually and not drained into the system.
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