GE Water System EZ2 Series User Manual

OSMONICS  
TM  
E2/EZ2 SERIES  
WATER PURIFICATION  
MACHINES  
INSTALLATION, OPERATION,  
AND MAINTENANCE  
MANUAL  
GE Infrastructure  
Water & ProcessTechnologies  
 
INSTALLATION, OPERATION,  
AND MAINTENANCE MANUAL  
E2/EZ2-SERIES  
WATER PURIFICATION MACHINES  
TABLE OF CONTENTS  
Page  
1
2.0  
INSTALLATION  
2.1  
2.2  
2.3  
2.4  
2.5  
2.6  
Mounting the Unit  
Plumbing  
Plumbing Connections  
Feed Water Requirements  
Transporting Pure Water (Permeate) to Point-of-Use  
Machine Control  
1
1
1
2
2
3
2.6.1 Economy Model  
3
2.6.2 Deluxe Model  
3
2.7  
2.8  
Single-Phase Electrical  
3
3
3
4
Machine Start-Up Preparations  
2.8.1 Pretreatment for Water Purification  
2.8.2 Machine Start-Up Preparation  
Machine Start-Up  
2.9  
4
2.10 Recovery  
7
2.11 Permeate Back Pressure Correction Factors  
2.12 Operation and Maintenance  
2.13 Pre-Filter Cartridge  
8
9
9
2.14 Daily Flushing  
9
2.15 Membrane Element Cleaning  
2.16 Membrane Element Removal  
2.17 Membrane Element Replacement  
2.18 Troubleshooting  
10  
12  
12  
15  
 
LIST OF FIGURES  
Page  
Figure  
Description  
2.1  
2.2  
2.3  
2.4  
Flow Control Center  
Closed Loop Membrane Element Cleaning  
Membrane Element Installation  
6
11  
13  
14  
Membrane Element Direction for Installation  
LIST OF TABLES  
Table  
Description  
2.1  
2.2  
2.3  
2.4  
2.5  
E2/EZ2-Series Machine Piping Connections  
E2/EZ2-Series Feed Water Requirements  
E2/EZ2-Series Primary Pressure Range  
Flow Specifications for E2/EZ2-Series Machines  
Permeate Back Pressure Correction Factors  
1
2
5
7
8
NOTE: This manual, along with all GE Infrastructure manuals, is available at  
 
2.0  
INSTALLATION  
2.1 Mounting the Unit  
When installing your new GE Osmonics reverse osmosis (RO) machine, allow at least  
45-inches (114.3 cm) above the machine for membrane element removal and loading. If  
space is not available, the entire membrane element housing can be removed for  
membrane element change-outs. If the membrane element housings are to be removed to  
change-out the membrane elements, at least 25-inches (65.3 cm) is required at one end of  
each membrane element housing and 6-inches (15.2 cm) behind the machine.  
2.2  
Plumbing  
The feed water source must be able to provide water quantity and pressures to maintain an  
operating feed water pressure of 30 - 60 psi (2.1 - 4.1 bar). If the feed water pressure with  
the machine is in excess of 60 psi (4.1 bar) or fluctuates by more than 5 psi  
(0.34 bar) a pressure regulator should be installed upstream of the machine inlet. If prop-  
er water pressure cannot be maintained to the RO, a booster pump may need to be installed  
in front of the pretreatment to provide the proper water quantity and pressure for the oper-  
ation of the machine.  
2.3  
Plumbing Connections  
Connect proper size drain line to the concentrate outlet (Table 2.1, E2/EZ2-Series  
Machine Piping Connections) and run to an open drain. The drain capacity needs to be  
large enough to properly drain the feed water flow of the RO.  
Table 2.1  
E2/EZ2- Series Machine  
Piping Connections  
C O N N E C T I O N S  
Inlet  
inch (cm)  
0.38 (0.96)  
0.38 (0.96)  
0.38 (0.96)  
Permeate  
inch (cm)  
Concentrate  
inch (cm)  
1
 
2.4  
Feed Water Requirements  
The following feed water requirements must be met before installing your E2/EZ2-Series  
machine to ensure quality permeate and extended membrane element life. Refer to  
Table 2.2 (E2/EZ2-Series Feed Water Requirements) for feed water information.  
Table 2.2  
E2/EZ2-Series Feed  
Water Requirements  
Temperature  
Inlet Pressure  
Typical: 50° - 85°F (10° - 29°C)  
Limits: 33° - 104°F (0.60° - 40°C)  
Minimum:  
30 psig (2.1 barg)  
Maximum: 60 psig (4.1 barg)  
Chlorine  
0 parts per million (ppm)  
(continuous feed)  
Operating pH  
5.5 - 8.5  
Silt Density Index  
(SDI)  
Less than or equal to 5 to minimize  
membrane element fouling and  
extend cleaning intervals. Refer to  
ASTM* Standard D4189.  
*
American Standard for Testing Materials  
2.5  
Transporting Pure Water (Permeate) to Point-of-Use  
Pure water, or permeate, is in an aggressive state and should only be transported from the  
machine to the point-of-use in food grade flexible nylon, stainless steel (SS) tubing, or  
polyvinyl chloride (PVC) material for the inlet, permeate, and concentrate piping sizes.  
Refer to Connections (Table 2.1, E2/EZ2-Series Machine Plumbing Connections) for  
inlet, permeate, and concentrate piping sizes.  
WARNING: MACHINE DAMAGE MAY OCCUR IF PERMEATE BACK PRES-  
SURE EXCEEDS 60 PSI (4.1 BAR) DURING OPERATION.  
2
 
2.6  
Machine Control  
2.6.1 Economy Model  
To remotely control the Economy Model (ECN) with float switches and/or pre-  
treatment lockout, remove the jumper between terminals 4 and 5 and wire in the  
float switches or pretreatment components in series. After all field wiring is com-  
plete and complies with local and national electrical codes, move onto  
Section 2.7 (Single-Phase Electrical).  
NOTE:  
2.6.2 Deluxe Model  
To remotely control the Deluxe Model (DLX), with float switches and/or pre-  
External control contacts are normally closed, dry contacts.  
treatment lockout, remove the jumper between terminals 2 and 3 and wire in the  
float switches and pretreatment in series. After all field wiring is complete and  
complies with local and national electrical codes, move onto Section 2.10  
(Pretreatment for Water Purification).  
NOTE:  
External control contacts are normally closed, dry contacts.  
2.7  
Single-Phase Electrical  
Always check voltage tag on the machine to ensure the correct voltage and amperage is  
available.  
The E2/EZ2-Series machines are shipped as either 120 Volt 60 Hertz or 220 Volt  
50 Hertz from the factory. Machines should always be connected to a 15 Amp single-  
phase dedicated circuit. The circuit provided should be a separately fused disconnect with  
the proper protection for the Hp and Amp draws of the machine. Reverse osmosis (RO)  
machines with 115 Volt circuit include an 8-foot (2.4 m) electrical cord which plugs into  
a single-phase outlet. All machines shipped with a 220 VAC single-phase power require-  
ment are shipped with an 8-foot (2.4 m) electrical cord, but customers must provide  
electrical plug. All field wiring must comply with applicable local and national electrical  
codes.  
2.8  
Machine Start-Up Preparations  
2.8.1 Pretreatment for Water Purification  
A water analysis of your feed water should have been performed, as part of the  
planning and engineering that went into developing your RO system.  
The water analysis will provide information on what type of pretreatment may be  
required and what recovery the machine can be run at on the feed water provid-  
ed. If the machine is moved to a different water source, a new water analysis  
should be taken before operating the machine.  
3
 
Your RO is designed to operate on softened tap feed water with an SDI of 5 or  
less. The pH should be in a range of 5.5 - 8.5. Exposure to any levels of chlo-  
rine may cause irreversible damage to the Thin-layer composite (TLC) polyamide  
(PA) membrane elements in your machine. Daily water checks are recommend-  
ed to ensure the integrity of your pretreatment and RO system. Refer to  
Table 2.2 (E2/EZ2-Series Feed Water Requirements).  
2.8.2 Machine Start-Up Preparation  
Check the function and integrity of your pretreatment equipment. Ensure that  
your water softener and activated carbon filters have been leaked checked and  
properly flushed, before starting up your RO machine.  
WARNING: IMPROPERLY FLUSHED PRETREATMENT MAY  
CAUSE SERIOUS RO MACHINES PROBLEMS AT  
START-UP.  
WARNING: NEVER OPERATE THE MACHINE WITH THE CON-  
CENTRATE OR PERMEATE LINES BLOCKED.  
SEVERE DAMAGE TO THE UNIT MAY RESULT.  
2.9  
Machine Start-Up  
STEPS  
1.  
2.  
3.  
Turn the feed water supply to the machine ON, while checking for leaks in the  
pretreatment and inlet feed water lines.  
Check to ensure power to the motor is de-energized and the ON/OFF button, on  
the machine, is in the ON position.  
Plug in the factory-supplied power cord.  
NOTE: Fifty (50) Hertz models require customer supplied plug compatible  
with existing outlet.  
4.  
5.  
For initial start-up, redirect the permeate and concentrate lines to the drain for  
start-up flush.  
Open the concentrate and recycle flow control valves two (2) complete turns.  
These valves are positioned on the flow control plumbing (Figure 2.1, Flow  
Control Center).  
WARNING: ONCE MACHINE IS OPERATING, FLUSH CONCEN-  
TRATE AND PERMEATE TO THE DRAIN FOR  
20 - 30 MINUTES. FLUSHING ENSURES ALL BIOCIDES  
AND CONTAMINATES ARE REMOVED FROM THE  
MEMBRANE ELEMENTS.  
4
 
6.  
7.  
Turn the ON/OFF button on the machine ON.  
As the pump starts to build pressure, begin to adjust the valves in the following  
manner: start by slowly closing the concentrate valves while slowly opening the  
recycle valve (Figure 2.1, Flow Control Center).  
CAUTION:  
Monitor machine to ensure inlet pressure of 30 - 60 psi  
(2.1 - 4.1 bar) is maintained during operation.  
8.  
After 20 - 30 minutes of flushing permeate to the drain, ensure all chemical  
residue has been removed before hooking up to point of use.  
While operating, the pressure range should never operate outside of the pressure  
ranges displayed in Table 2.3 (E2/EZ2-Series Primary Pressure Range).  
Table 2.3  
E2/EZ2-Series  
Primary Pressure Range*  
E2/EZ2-Series  
Operating  
Pressure  
220 psi  
(15.2 bar)  
Operating  
Range  
165 - 250 psi  
(114. - 17.2 bar)  
*
Primary pressure temperature for normal operation is 77°F (25°C).  
CAUTION: The E2/EZ2-Series must not operate outside the ranges listed  
above.  
NOTE: Optimum recovery will vary according to feed water quality.  
The concentrate valve is drilled, and when completely closed the machine is run-  
ning at the correct concentrate flow for a 75% recovery (Table 2.4, Flow  
Specifications for E2/EZ2-Series Machines).  
If the temperature of the inlet feed water is not 77°F (25°C) use the Temperature  
Correction Factor Table (Technote 113). The proper adjustment of the recycle and  
concentrate valves are critical to the correct operation of the machine.  
5
 
9.  
Complete the Start-Up Data Sheet (Technote 101). The Start-Up Data Sheet and  
the Daily Log Sheet (Technote 106) are invaluable in diagnosing the performance  
of the equipment, and must be be kept for reference. If you have questions con-  
cerning the operation of your machine or the method of data recording, contact  
your distributor or the manufacturer.  
Feed Water  
Inlet  
Pressure Gauge  
Recycle Valve  
Concentrate Valve  
Figure 2.1  
Flow Control Center  
CAUTION:  
CAUTION:  
Once the machine is running, with orifices, adjust pressures and  
flows to the correct measure, flush machine to drain for  
30 - 45 minutes.  
The E2/EZ2-Series machines are designed to run at 50% recov-  
ery. To confirm flows are correct, check Table 2.4 (Flow  
Specifications for E2/EZ2-Series Machines). To correct any  
temperature variations, check Table 2.4. If your E2/EZ2-Series  
machine is operating under permeate back pressure to point of  
use, refer to Table 2.5 (E2/EZ2-Series Permeate Back Pressure  
Correction Factors).  
CAUTION:  
Machine performance is based on a feed water temperature of  
77°F (25°C). If feed water temperature is other than  
77°F (25°C), reference Table 2.4 (Temperature Correction  
Factors) to confirm machine’s performance  
6
 
2.10 Recovery  
The machine flow specifications listed below are based on 77°F (25°C).  
Table 2.4  
E2/EZ2 - Series  
Flow Specifications for  
Machines  
E2/EZ2-Series  
Units  
620/  
750  
1400/  
1690  
2100/  
2535  
0375  
1125  
Recovery Range  
Rejection Rate  
33 - 50%  
95 - 98%  
0.3 (0.07)  
33 - 50%  
95 - 98%  
0.5 (0.11)  
33 - 50%  
95 - 98%  
0.9 (0.20)  
33 - 50%  
95 - 98%  
1.2 (0.27)  
33 - 50%  
95 - 98%  
1.8 (0.40)  
Permeate Rate  
gpm (m3/h)  
Concentrate Rate  
gpm (m3/h)  
0.3 - 0.2  
0.5 - 0.3  
0.9 -0.6  
1.2 - 0.8  
1.8 - 1.2  
(0.07 -0.14) (0.11 - 0.07) (0.20 - 0.13) (0.27 - 0.54) (0.41 - 0.82)  
7
 
2.11  
Permeate Back Pressure Correction Factors  
It is often necessary to operate RO machines with permeate back pressure. Permeate back  
pressure will decrease permeate production. See Table 2.5 (Permeate Back Pressure  
Correction Factors) to calculate loss of permeate.  
Table 2.5  
E2/EZ2-Series  
Permeate Back  
Pressure Correction  
Factors  
% LOSS OF  
PERMEATE  
FLOW  
PRESSURE  
CORRECTION  
FACTOR (PCF)  
BACK  
PRESSURE  
10 psig (0.7 barg)  
20 psig (1.4 barg)  
30 psig (2.0 barg)  
40 psig (2.7 barg)  
50 psig (3.4 barg)  
60 psig (4.1 barg)  
5%  
0.95  
0.90  
0.80  
0.70  
0.60  
0.50  
10%  
15%  
20%  
25%  
30%  
WARNING: IF PERMEATE BACK PRESSURE EXCEEDS 60 PSI (4.1 BAR)  
MACHINE DAMAGE MAY OCCUR.  
WARNING: INSTALLING A CHECK VALVE WILL PREVENT REVERSE  
FLOW THROUGH THE MEMBRANE ELEMENT WHEN THE  
MACHINE IS NOT IN OPERATION. REVERSE FLOW, WHEN  
THE MACHINE IS NOT IN OPERATION, CAN SEVERELY  
DAMAGE THE MEMBRANE ELEMENTS.  
8
 
2.12 Operation and Maintenance  
The operation and maintenance of an E2/EZ2-Series RO machine requires regular data  
recording and routine preventative maintenance. It cannot be emphasized enough the  
importance of filling out the Daily Log Sheet (Technote 106) during each operating shift.  
A Start-Up Data Sheet (Technote 101) should have been completed at start-up. The Start-  
Up Data Sheet contains pertinent facts on the operation of your machine. These two  
records are invaluable in diagnosing the performance of the equipment, and must be kept  
for reference. If you have questions concerning the operation of your machine or the  
method of data recording, contact the manufacturer.  
Three preventative maintenance procedures, which must be done on a regular basis, are  
as follows:  
1.  
2.  
Change the pre-filter cartridges as needed.  
The machine needs to run and flush for at least 10 minutes every 72 hours, clock  
time.  
3.  
Clean the RO membrane elements with approved cleaners at least quarterly,  
depending on feed water quality.  
2.13  
Pre-filter Cartridge  
A 1 micron pre-filter cartridge is factory installed to protect the membrane elements and  
valves from particles, which may be in the feed water. To order replacements, see the  
Spare Parts List (Technote 109).  
A pressure drop across the filter of 8 psi (0.55 bar) or more during operation indicates that  
the pre-filter cartridge(s) need changeing. Use only GE approved filters rated at 2 microns  
or less. Refer to Technote 109 (Spare Parts List) for pre-filter cartridge replacements. Do  
not attempt to clean used pre-filter cartridges.  
NOTE: Failure to perform normal preventative maintenance procedures will void  
machine warranty.  
2.14  
Daily Flushing  
A manually flush of the E2/EZ2-Series must be done machine daily.  
To flush the machine:  
NOTE: During flushing procedure, the machine must be running.  
STEPS  
1.  
With the machine running, open the concentrate valve 1/2 -3/4 of a turn  
(Figure 2.1, Flow Control Center).  
9
 
2.  
3.  
Allow the machine to operate with the concentrate valve open 1/2 - 3/4- of a turn  
(Step 1) for 10 - 15 minutes.  
After 10 - 15 minutes, return the concentrate valve to its previous setting, and  
return to normal operation.  
CAUTION:  
When opening the concentrate valve, never allow the machine’s  
primary pressure to drop more than 10% below normal operating  
pressure (Table 2.3, E2/EZ2-Series Primary Pressure Range).  
2.15 Membrane Element Cleaning  
Periodic cleaning of the machine with appropriate membrane element cleaners will pro-  
long the life of the membrane elements. Local conditions will determine the frequency of  
cleaning. Cleaning may be required when:  
1.  
2.  
The permeate quality begins to decline.  
The reading on the final pressure gauge begins to change noticeably.  
GE recommends that you clean your E2/EZ2-Series RO machine every quarter. You may  
have to clean the RO machine more frequently, depending on the quality of your feed  
water. Cleaning of the membrane elements is vital because contanimants can build-up on  
the membrane element surfaces, reducing the permeate flow rate and affecting the quali-  
ty of the permeate.  
To clean the membrane elements:  
NOTE: It is always best to start with the acid or inorganic cleaner.  
STEPS  
1.  
Remove and replace the pre-filter cartridge (Section 2.14, Pre-filter Cartridge).  
NOTE: For best results, GE recommend pre-filters be replaced before and after  
cleaning.  
2.  
3.  
In a clean container, collect approximately five (5) gallons (19 Liters) of RO  
permeate water.  
Turn machine and water supply OFF.  
10  
 
Figure 2.2  
E2/EZ2-Series  
Closed Loop Membrane  
Element Cleaning  
NOTE: This clean container will be referred to as the Clean-In-Place (CIP)  
container.  
4.  
Disconnect and route the inlet, permeate, concentrate lines from their service  
locations to the CIP container (Figure 2.2 E2/EZ2-Series Closed Loop Membrane  
Element Cleaning.  
5.  
6.  
7.  
Connect the CIP feed line to the E2/EZ2-Series machine inlet feed water port  
(Figure 2.2, E2/EZ2-Series Closed Loop Membrane Element Cleaning).  
Mix the appropriate cleaning compound in the 5 gallons of permeate water, in the  
CIP container, according to the cleaning label instructions.  
Turn machine ON and allow machine to recirculate the cleaning solution for  
10 - 15 minutes.  
NOTE: The incoming feed pressure should be 30 psi (2.1 bar).  
As machine starts up it will achieve prime and begin to draw solution into the  
machine and circulate the solution back into the CIP container.  
If the machine makes noise or primary pressure does not climb to normal operat-  
ing pressure (Table 2.3, E2/EZ2-Series Primary Pressure Range) turn machine  
OFF. Refer to Troubleshooting (Section 1.18). Once pressure range is corrected,  
continue start-up procedure.  
As the machine runs normally check CIP tank to ensure that the CIP inlet line to  
the machine is submerged in the cleaning solution, so the pump prime will not be  
lost.  
11  
 
8.  
After circulaiting the macine for 10 - 15 minutes or solution has reached  
95°F (35°C), shut machine OFF.  
9.  
Dump solution. Repeat Setps 6 - 8.  
10.  
With machine OFF (Step 8), let cleaning solution dwell in machine for  
15 - 30 minutes.  
11.  
After 15 - 30 minutes, reconnect feed to RO unit and connect concentrate and per-  
meate to drain. Turn machine ON and flush permeate water to the drain for  
10 - 15 minutes.  
This ensures that all cleaning agents have been removed for the machine.  
If cleaning with an organic cleaner, return to Step 1 and repeat Steps 1 -11.  
12.  
13.  
After completing cleaning (normal and organic) and flushing to the drain recon-  
nect permeate to the point of use, concentrate to the drain, and reconnect feed to  
the RO unit.  
WARNING: LOSS OF PRIME DURING SUCTION CLEANING MAY  
RESULT IN SERIOUS DAMAGE TO THE PUMP.  
NOTE: As previously mentioned, the manufacturer recommends use of a CIP  
or booster pump to circulate the cleaning solution during membrane  
element cleaning.  
2.16  
Membrane Element Replacement  
CAUTION:  
Replacement membrane elements are shipped from the factory in a plas-  
tic bag with a small amount of bactericide solution to prevent biological  
growth. When installing the membrane elements, always provide ade-  
quate ventilation and wear gloves while handling the membrane elements  
as recommended. The membrane elements must be kept moist at all  
times to prevent possible damage to the membrane element material.  
STEPS  
1.  
Remove the top end caps and clamps from the membrane element housings  
(Figure 2.4, Membrane Element Installation). Lubricate all O-rings and brine  
seals, and the polyvinyl chloride (PVC) membrane element stems (stingers) with  
a non-petroleum based lubricate (i.e., glycerin or poly water).  
2.  
Load the down flow membrane elements first, by inserting the membrane element  
into the membrane element housing with the brine seal end of the membrane ele-  
ment up. Slowly turn the membrane element as you lower it into the membrane  
12  
 
element housing. As you reach the bottom of the housing slowly guide the PVC  
stem or stinger on the end of the membrane element into the head of the end cap.  
As the membrane element slides into the housing the brine seal will be on the top  
(Figure 2.4, Direction of Membrane Element Installation).  
Figure 2.3  
Membrane Element  
Installation  
3.  
4.  
Next, load the up flow membrane elements, by lubricating all brine seals, O-rings,  
and the membrane element stingers. With the up flow membrane element and the  
brine seal will be on the bottom of the membrane element. Turn the membrane  
element slowly as you lower it down into the housing. As with the down flow  
membrane element, one must slowly guide the PVC stinger on the end of the  
membrane element into the end cap.  
Reinstall the end caps by using non-petroleum based lubricant to lubricate the O-  
ring inside the end cap. Reinstall the end cap on the membrane element by first,  
aligning the stinger into the hole in the end cap and then turn the end cap slowly  
clockwise, as you push it down into the membrane element housing.  
5.  
6.  
Reattach the housing clamp and tighten.  
Reattach the feed line and flush permeate and concentrate lines to the drain for  
25 - 30 minutes.  
7.  
8.  
9.  
Take appropriate tests to insure biocide has been flushed from the machine.  
Reconnect permeate line to point-of-use.  
The machine is now ready for operation.  
13  
 
Figure 2.4  
Membrane Element  
Direction for  
Installation  
14  
 
2.17 Troubleshooting  
This troubleshooting guide can assist you in identifying common operating problems you may  
experience with your machine. The operator can easily correct may of these problems, however,  
for those that persist or are not understood you should contact the GE Customer Support Center.  
Have the following information available when calling the Customer Support Center:  
1.  
2.  
3.  
4.  
Machine installation date  
Model number  
Serial number  
Detailed description of problem.  
T R O U B L E S H O O T I N G G U I D E  
PROBLEM  
POSSIBLE CAUSES  
REMEDIES  
Low operating pressure  
Insufficient feed water pressure Open feed water valve. Check  
or flow  
feed water valve for restrictions  
in feed plumbing.  
Clogged pre-filter cartridge  
Replace pre-filter cartridge.  
Flush and/or clean machine.  
Dirty or fouled membrane  
elements  
Inlet solenoid valve not  
opening  
Verify valve receiving power  
when machine is ON. Clean or  
replace solenoid valve.  
Insufficient electrical power Verify proper voltage is present.  
Check fuses and circuit  
breakers.  
Pump or motor not operating  
correctly  
Contact your distributor for  
replacement or repair of pump  
or motor.  
15  
 
T R O U B L E S H O O T I N G G U I D E  
PROBLEM  
POSSIBLE CAUSES  
REMEDIES  
Low operating pressure  
(continued)  
Concentrate or recycle valve to Refer to Section 2.9 for proper-  
far open  
ly setting concentrate and  
recycle valves  
Low permeate production  
Low operating pressure  
See above.  
.
Machine operating on cold  
water  
Check the water temperature.  
If needed, install a hot/cold  
tempering valve. Permeate  
production rate is dependent on  
77°F (25°C). Refer to Section  
2.5 (Temperature Correction  
Factor).  
Membrane elements installed  
incorrectly  
Refer to Section 2.18 for cor-  
rect membrane element  
installation procedure.  
Membrane elements with  
damaged brine seals may be  
returned for repair. For low  
permeate production, it is  
wise to test the permeate pro-  
duction of each membrane  
element.  
Brine seal has “rolled” or been Refer to Section 2.18 for cor-  
damaged  
rect membrane element  
installation.  
Dirty or fouled membrane  
elements  
Flush and/or clean the  
machine.  
Backpressure on the permeate  
line  
Reduce permeate line back-  
pressure. Check for restric-  
tions in permeate plumbing.  
16  
 
T R O U B L E S H O O T I N G G U I D E  
PROBLEM  
POSSIBLE CAUSES  
REMEDIES  
Low permeate production  
(continued)  
Useful life of membrane  
element(s) expired  
Install new membrane ele-  
ment(s). See Spare Parts List  
(Section 2.20).  
Inaccurate permeate flow meter Check the flow rate manually  
(DLX only)  
with a stop watch and a cali-  
brated container.  
Low concentrate flow with  
normal or high operating  
pressure  
Dirty or fouled membrane  
element (s)  
Flush and/or clean machine.  
Declining rejection  
(high permeate  
conductivity)  
O-rings on membrane ele-  
ment(s) unseated or  
damaged parts  
Replace the O-rings, check  
the sealing surfaces on the  
O-ring groove and end caps.  
Replace damaged parts.  
Useful life of membrane ele-  
ment(s) expired  
Replace with new membrane  
elements. See Spare Parts  
List (Section 2.20).  
Change in incoming  
water quality  
Calibrate the meter with a DS  
standard solution or check the  
readings with another conduc-  
tivity meter. Replace or clean  
the probe. Check the connec-  
tions between the probe and  
monitor. Refer to Section  
2.16.2 (Deluxe Model).  
ON/OFF switch ON:  
machine not running  
No power to machine  
Ensure machine is  
plugged in.  
17  
 
T R O U B L E S H O O T I N G G U I D E  
PROBLEM  
POSSIBLE CAUSES  
REMEDIES  
ON/OFF switch ON:  
machine not running  
(continued)  
Pressurized storage switch or  
storage tank float switch cut  
power to machine  
The storage tank may be full.  
The switch control may  
require adjustment.  
Thermal overload of motor  
Pump motor failure  
Allow the machine to cool.  
Check the Amp draw to the  
machine.  
Check the fuses or circuit  
breakers; measure the volt-  
age. Contact your distributor  
for service.  
Pressure does not drop when  
concentrate valve opened  
Dirty concentrate valve  
Disconnect and clean the  
concentrate valve.  
Excessive pressure drop  
acrosse membrane  
element(s)  
Restricted flow after pump  
outlet  
Check for blockage of the  
concentrate flow at the inlets  
and outlets of membrane  
element housings.  
[over 50 psi (3.5 bar)]  
Telescoped membrane element Ensure that the anti-telescop-  
covering membrane element  
housing  
ing device (ATD) is intact.  
Fouled or dirty membrane  
elements  
Flush and/or clean the  
machine.  
18  
 
T R O U B L E S H O O T I N G G U I D E  
PROBLEM  
POSSIBLE CAUSES  
REMEDIES  
Flow through machine while Inlet solenoid valve not fully Ensure valve is not getting any  
power is OFF  
closed  
power when machine is OFF.  
Replace inlet solenoid valve.  
19  
 
 
For more information call 952-933-2277 or 800-848-1750 in the U.S., or visit www.gewater.com.  
GE Infrastructure  
Water & Process Technologies  
North American Sales  
5951 Clearwater Drive  
Minnetonka, MN  
55343-8995  
Euro/Africa Sales  
230 rue Robert Schurman  
ZA des Uselles  
77350 Le Mée sur Seine  
FRANCE  
Asia/Pacific Sales  
1044/8 SOI 44/2  
Sukhumvit Road Parkanog  
Bangkok 10110  
USA  
THAILAND  
(952) 933-2277 Phone  
(952) 933-0141 Fax  
+33 1 64 10 2000 Phone  
+33 1 64 10 3747 Fax  
+66 2 38 14213 Phone  
+66 2 39 18183 Fax  
© 2004, General Electric Company. All rights reserved.  
P/N 1227273 Rev.C  
 

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