Dräger 7000 Notice D'utilisation page 49

Item Description
7 Exhaust air connection with flap
8 Main switch
9 Dosing pump for detergent/disinfectant containers 1, 2
and 3 (2nd and 3rd containers are optional, both instal-
lation locations are possible)
10 Fine filter for water
11 Detergent/disinfectant containers 1, 2 and 3 (2nd and
3rd containers are optional, both installation locations
are possible)
12 Automatic backwashing
13 Impeller pump for CPS
14 Water softener (optional)
15 Cold and hot water supply (optional), compressed-air
shut-off valve
6.1.1 Daily visual inspection
Check the door seals for correct fit, brittleness and cracks.

Check the glass doors for damage.

Check the water filter for degree of contamination.

Check the trolley for foreign matter and remove if

necessary.
Check the nozzles, hoses and cables in the cabin and on

the trolley for damage.
6.1.2 Trolley for full face masks and LDV (optional)
NOTICE
The maintenance work to be carried out on the full face mask
trolley and the combination trolley is identical.
Check that the clamping brackets for full face masks move

smoothly.
Check the locking of the full face mask clamping brackets

in the upper holding position.
Rotate the drum and check for unusual noises or resis-

tance.
6.1.3 Test program
The automatic test program is used to check the spray pattern
of the nozzles and the function of the dosing pumps.
1. Load the cabin with empty CPS trolley and connect it. If
there is no CPS trolley available, another trolley can be
used.
2. Start the test program (see chapter 4.3.3 on page 37).
While the test program is running, various points on the
MFC 7000 must be checked for functional integrity. The
program steps with the respective controls are listed below:
a. Fill the vat with water.
b. Dose agents 1, 2 and 3 (agents 2 and 3 are optional) at
1% each. During this program step, the user in the tech-
nical cabinet must observe the dosing pump and check
whether the hose pump is rotating.
c. Rinse with pulse/pause cycle (10 seconds each) from
the spray nozzles on the trolley and spray nozzles 1
and 2 for 3 minutes. During this program step,check all
nozzles in the cabin and trolley through the doorto see
if water is leaking and the spray pattern looks correct.
d. Pump the water out of the vat.
e. Fill the vat with water up to level sensor LS2.
f. Pump the water out of the vat.
g. Fill the vat with water.
h. Rinse with pulse/pause cycle (10 seconds each) from
the spray nozzles on the trolley and spray nozzles 1
and 2 for 3 minutes. During this program step,check all
nozzles in the cabin and trolley through the doorto see
if water is leaking and the spray pattern looks correct.
i. Pump the water out of the vat.
j. Dry at 60 °C for 30 minutes.
6.1.4 Refill water softener (optional)
1. Open the technical cabinet.
2. Remove the lid of the water softener.
3. The water level must be above the grid plate. If the water
level is lower, Dräger Service must be called.
4. Refill the evaporated salt tablets. There must be enough
salt in the container that the water is not visible.
5. Replace the lid of the water softener.
6. Close the technical cabinet.
6.1.5 Replacing detergents and disinfectants
1. Open the technical cabinet completely.
CAUTION
Always put on protective clothing before any work with deter-
gents/disinfectants.
► Observe the manufacturer's safety data sheet,wear gloves
during all work and always pull out the suction lance
carefully.
2. Open the new canister with detergent/disinfectant.
3. Remove the suction lance from the empty canister and
insert it into the new canister.
4. Remove the old canister from the mount and place the new
canister on the mount.
5. Close the technical cabinet.
6.1.6 Replacing the water filter
NOTICE
Do not unscrew the filter cup while water is in the line.
1. Open the technical cabinet.
2. Close all water taps (cold and hot water tap depending on
the option).
3. Switch MFC 7000 to Manual plant mode (see
chapter 4.3.7).
4. Open all valves. This causes the water to run off the line
system or to become pressureless.
5. Manually select the valve for backwashing on the
touchscreen, this opens the rotary valve at the bottom of
the filter cup.
6. Immediately afterwards, unscrew the black plastic plug on
the top of the filter approximately halfway until the filter
draws air. The water level in the filter drops visibly. If the
water level has not dropped sufficiently, the valve for
backwashing must be selected again.
7. When the filter cup is completely empty, loosen the drain
hose at the bottom of the filter.
8. Release the automatic backwashing system (turn the
bayonet-type connector by 90 °).
9. Loosen the filter cup with the filter key and remove the filter.
Maintenance en
49