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Performance Guidelines:
Performance of the appliance such as pressure boost or flow rate of the connected R.O. unit is
highly dependent on local conditions (inlet water pressure, temperature and TDS, R.O. membrane
type and flow rating, R.O. unit type and its design specifics) and R.O. system use pattern.
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Typical pressure boost (
∆
P, extra pressure built upon the inlet pressure) is up to 50 psi
(0.34 MPa) for 50-100 GPD R.O. membrane for X845, and up to 100 psi (0.69 MPa) for
150-500 GPD membrane for X855. For example, the higher the GPD rate of the membrane
attached or the higher the water temperature the lower is an actual pressure boost for
a given setup but the higher the output flow rate in working mode. Typically, in working
mode outlet water pressure reaches 80-110 psi for X845 and 110-160 psi for X855
depending on local conditions and membrane used.
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Drain water flow restrictor: 300 cc (ml/min) nominal, up to 450 cc in working mode, open
flow in flush mode.
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Auto-flush duration: 18±10% s
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Idling protection: 120 minutes (the unit will shut-off the pump and goes into ‘reset required’
mode if working mode continuous duration reaches 2 hours without interruption)
Warranty:
1 year limited warranty
Package Contents:
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(1) The auto-flush booster pump box unit
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(20 ft / 6 m) Water tubing ¼”
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(1) ¼” x ¼” x ¼” union tee quick fitting
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(1) ¼” x ¼” union check valve
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User’s guide
Installation
Notes:
1. Install your R.O. machine first. Usually, steps include: inlet valve installation, drain saddle
installation, filtered water faucet installation, tank and tank valve installation, etc. See your
R.O. machine manual for the detailed instructions. Do not open inlet valve until you finish the
unit setup. If you used your R.O. machine before close the inlet valve and drain the water tank
(by opening the filtered water faucet).
2. If your R.O. machine includes flow restrictor, 4-way shut off valve, manual flush valve
remove them on the R.O. unit itself. Built-in components of the pump box will be used instead.
See the following charts for proper connection scheme.
3. Use of air gap faucet is not recommended in R.O. systems with powerful auto flush feature
due to high flow of waste water during the flush. If you have air gap faucet you may simply not
use its waste line and insert waste water tubing directly into the drain saddle (bypassing the
air gap). You may want to use a check valve (optional) on the drain line then to obtain same
protection from a drain water backset as air gap provides.
4. During installation you will need to cut the supplied ¼” tubing into segments as needed.
Use your utility knife for that or similar tool. See the following charts to determine the
