WaterBoss 900IF Owner's Manual download pdf (Page 10)

WaterBoss Owner’s Manual 9/2/2009 10

Installation Steps and Start-Up Procedures, Cont.

Step 5

Connect Gravity Overflow Connection

The overflow line drains away excess water should the

tank fill with too much water or the appliance

malfunction.

A. Attach the overflow elbow and check that it is in the

down position. (See Figure 4.)

B. Connect 1/2-inch (12.7 mm) I.D. tubing (size cannot

be reduced) between the overflow fitting and a

suitable floor drain, laundry tub, or other suitable

waste receptor. This tubing is not supplied with the

appliance. Ensure that the overflow line ends at a

drain that is at least 3-inch (76 mm) lower than the

bottom of the overflow fitting. Maintain a minimum

of 2-inch (50 mm) air gap. The gravity line cannot

be run overhead.

Step 6

Connect Drain Line

The drain line carries away the backwash water as

part of the regeneration cycle.

A. Connect the drain line to the drain end cap

(See Figure 5) with a minimum 1/2-inch (12.7 mm)

I.D. tubing (supplied). The size cannot be reduced.

B. Route the drain line to a floor drain, laundry tub, or

other suitable waste receptor. Maintain a minimum

2-inch (50 mm) air gap between the drain line and

the flood level rim of the waste receptor to prevent

back-siphoning. This drain line should make the

shortest run to the suitable drain.

C. The drain line may be elevated up to 8 feet (2.4 m)

from the discharge on the appliance as long as the

water pressure in your system is 40 psi (2.8 bar) or

more.

D. If the drain line is 25 feet (7.6 m) or longer, increase

the drain line to 3/4-inch I.D. The end of the drain

line must be equal to or lower in height than the

control valve.

Caution: The drain line must not be kinked,

crimped, or restricted in any way.

Figure 4: Gravity Overflow

Connection

Figure 5: Connect Drain Line

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WaterBoss 900IF Owner's Manual Page 10

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