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Table 5 - Backwash Flow Rate Setting
Model
ZFL2800
ZFL4000
Backwash flow rate
(sec/liter)
50-70
63-89
Valve open (%)
60-70%
60-70%
Figure 14 - Flow Controlling Valve
Figure 13 - Flow Measurement
Model
ZFL2800
ZFL4000
Recirculating flow rate
(liter/min.)
9.7-15
14-21
Suggested Valve Opening
60-65%
50-55%
Table 4 - Recirculation Flow Rates
1. Connect house sewer pipe or septic tank outlet, if required, to
the unit inlet. Make certain only household waste enters the
unit (no foundation drains, gutter drains, etc.).
2. Connect the outlet pipe to the outlet of the unit.
PIPING INSTALLATION
HIGH WATER ALARM FLOAT INSTALLATION
The Fusion
®
alarm panel assembly includes a high water alarm float
switch that is used to monitor the liquid level in the Fusion unit.
The switch should be tethered to one of the gray, vertical air lines
in the aeration chamber. With a 3" (76 mm) tether length, the cord
should pass through the opening in the partition wall between the
aeration and anaerobic chamber, and allow the float to hang in
the outlet baffle of the anaerobic chamber.
1. The float switch should be tethered to one of the gray, vertical
pipes in the aeration
chamber. When the float is in the
horizontal position, the cord should be at least 1" (25 mm)
below the top of the partition wall opening in the anaerobic
chamber baffle.
2. Place the cord into the clamp and secure to gray aeration pipe.
NOTE: Do not install the cord under the hose clamp.
3. Position the float with a 3" (76 mm) tether.
4. Tighten the hose clamp with a screwdriver. Be careful not to
overtighten as this may cause damage to the plastic clamp.
5. Make sure the float cord is not allowed to touch the excess hose
clamp band during operation as this may cause damage to the
cord.
1.
All electrical installations must follow the
National Electrical Code and/or your local/state electrical
codes.
2. The blower should be directly wired into the alarm panel.
The alarm panel must be located in a dry location that is
accessible for maintenance. Please see the wiring diagram
and instructions enclosed with the alarm panel.
3. Make certain the timer within the control panel is set to the
proper time. The timer unit display should be set to 10 hours
and the timer dial needle set to 3.6 for 36 hours. This will
activate an alarm if the blower doesn't go into backwash
cycle within a 36-hour time frame.
ELECTRICAL CONNECTIONS
There are two aeration systems provided within the aeration
chamber; normal aeration and backwash. Normally valves (1
and 3) are set at 50%. Observe the air flow on each side of the
unit to verify equal flow. If there is an obvious discrepancy in air
flow between the two sides, adjust the valves (1 and 3) so that
the flow is equal.
Figure 12 - Aeration Flow Adjustment
START UP
An installation and start-up check list is
furnished with the information package in the blower box. Please
use this as a guide and fill out all sections and return to your
distributor.
Valve legend:
1. Aeration
Blue
Balance Aeration
2. Recirculation
Gray
See Table 2
3. Backwash
Red
Balance Backwash
4. Sludge transfer
Gray
See Table 4 and 5
6. The float switch cord should be installed in electrical conduit
connecting the control panel to the Fusion
®
unit. The electrical
conduit must be rated for burial.
7. A 1/2" (13 mm) bulkhead fitting (supplied by others) should be
used to connect the electrical conduit to the Fusion
®
unit. A hole
must be drilled through the wall of the Fusion
®
unit between the
red and blue
bulkhead fittings to facilitate this connection.
8. Please be certain that the bulkhead fitting for the electrical
conduit forms a watertight connection with the FRP wall of
the Fusion
®
unit. Silicone may be used to create a watertight
seal.
9. Electrical conduit from the Fusion
®
unit to the alarm panel can
be buried in the same trench as the air lines.
10. The high-water alarm float switch is wired directly into the
alarm panel.