Buttons; Maintenance; Filter; Adjustment Screws - Pahlen MiniMaster User Manual

MiniMaster

12. Buttons

H On/Off - activating/deactivating dosing function
J Flow - pressed button displays current flow through Mini Master fittings.
J+K Calibration
K Forced dosing - button pressed for 5 seconds activates forced chlorine dosing for 2 minutes, for 30 seconds - pH
(indicated by circular LEDs). If you need to interrupt the ongoing forced dosing press (H) button.

13. Maintenance

• At backwashing the pool sand filters, close first shut-off valves (L1 and L2) on prefilter, to and from MiniMaster.
• Control the flow by pressing (J) button - adjust it to correct values with a set screw (L) in order to start the module.
• The chlorine and pH reference measurement should be performed 1-2 times a month with digital photometric measurement
instruments.
Take measured water from the prefilter measured water outlet.
In case of deviation from calibrated value - check and balance the water levels (see section 3 "Water chemistry") and/or clean
and calibrate electrodes accordingly.
• Plug threads and O-rings should be lubricated at least once a year with Silicone grease or the like containing PTFE
(petroleum-free based grease).
• Check hoses, connections and chemical levels regularly.
Electrodes
Should be cleaned regularly (see MA60-06 instruction "Electrodes, operation and maintenance") at least once a month.
1. Turn off dosing (on/off H button) - LED blinks.
2. Turn off water flow by closing ball valves (L1 and L2).
3. Release (E) bracket folding the modules forward, see Fig 2.
4. Loosen the electrode BNC connector (see Fig. 5 ) from the controller.
5. Unscrew electrode and lift it up.
6. Clean and rinse electrode. Reinstall electrode into the module and connect BNC connector.
7. Open ball valves (L1 and L2).
8. Let water go up through the fittings for one hour in order to stabilize electrodes.
9. Perform chlorine and pH reference measurement. Check that the values match Mini Masters diode display.
In case of deviations, balance pH and chlorine to the desired values and recalibrate.
10. Enable dosing (on/off H button) - LED light's steady.

Filter

Check prefilter regularly and clean if necessary. Replace filter cartridge as required.
1. Turn off dosing (on/off H button) - LED blinks.
2. Turn off water flow by closing ball valves (L1 and L2).
3. Unscrew filter cage where filter cartridge sits.
4. Replace or rinse clean the filter with plain water. Use soft brush if necessary.
5. Reinstall filter. Open ball valves (L1 and L2).
6. Enable dosing (on/off H button) - LED light's steady.

Adjustment screws

Adjustment screw (L) and measured water tap (F) should be cleaned as required, so that they are not jammed at filling the pool.
1. Turn off dosing (on/off H button) - LED blinks.
2. Turn off water flow by closing ball valves (L1 and L2).
3. Unscrew the adjustment screw, rinse and dry.
4. Lubricate o-ring and plug thread with a silicone grease. Reinstall them. Open ball valves (L1 and L2).
5. Enable dosing (on/off H button) - LED light's steady.

Winter storage

At freezing risk, the modules and pre-filter should be drained of water, bottom plugs removed, electrodes removed and put for
storage at a warm uniform temperature in its shipping container filled with tap water.
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ENGLISH