Honeywell F74C ユーザーズマニュアル
F74C REVERSE RINSING FILTER; MV876 AUTOMATIC-BACKWASH CONTROLS
62-0165
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Fig. 11. Removing the MV876 cover.
Fig. 12. Installing batteries in the MV876.
Fig. 13. Replacing the MV876 fuse.
WIRING
WARNING
Electrical Shock or Equipment Damage
Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before wiring.
Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before wiring.
IMPORTANT
All wiring must comply with applicable codes
and ordinances.
and ordinances.
MV876
1. Mount the 24 Vac transformer and wire as shown
in Fig. 14.
2. Reconnect power to the system. When the system
is powered, the MV876 will run through one
backwash cycle (approximately 20 seconds).
backwash cycle (approximately 20 seconds).
3. Set MV876 backwash interval to the desired
setting. See the Operation section.
4. Check MV876 operation by interrupting primary
power to the transformer. When power is switched
back on, the MV876 will backwash the F74C once.
back on, the MV876 will backwash the F74C once.
Fig. 14. Wiring diagram for F74C with MV876.
MV876B
M17352
M17353
MV876B
M17351
L1
(HOT)
(HOT)
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
PROTECTION AS REQUIRED.
1
M16484
MV876
62-0165.fm Page 6 Wednesday, June 20, 2007 9:21 AM