Honeywell F76S ユーザーズマニュアル

7

62-3015—4

As the F76S operates, screens become plugged. Backwash 
the F76S when the black needle measures about five psi 
lower than the red needle. However, each installation is 
different. Residential applications can require backwash only 
once a week, or once every few weeks. Industrial applications 
can require backwash several times a day. To determine the 
backwash interval, see Determining Backwash Interval in the 
Operation section.

NOTE:

For residential applications, backwash the F76S 
once a week regardless of need is an excellent 
guideline to follow to ensure F76S peak operating 
efficiency.

The batteries (not included) provide power to the MV876 in 
the event of a power loss. This is desirable especially when 
power loss occurs during the reverse rinsing cycle. To provide 
this, the MV876 requires four AA alkaline batteries. Install 
these batteries in the cover of the MV876:

Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment 
circuitry.
Disconnect power supply before installation.

Unscrew the four housing screws and set them aside. 
(see Fig. 8).

Remove the MV876 cover (see Fig. 8).

Insert four AA alkaline batteries (see Fig. 9).

Replace the cover.

Replace and tighten the four housing screws.

NOTES:

1.

To avoid unnecessary battery drainage, connect 
the MV876 to power as soon as possible after 
inserting new batteries.

2.

To ensure the availability of battery power, replace 
the batteries after a power loss.

If the 800 mA fuse blows, replace it:

Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment circuitry.
Disconnect power supply before installation.

Unscrew the four housing screws and set them aside. 
(see Fig. 8).

Remove the MV876 cover (see Fig. 8).

Remove and discard the old fuse (see Fig. 10).

Insert a new 800 mA fuse (see Fig. 10).

Replace the cover.

Replace and tighten the four housing screws.

Reconnect the power supply.

MV876B

M17352

M17353

MV876B

M17351