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The control valve, fittings and/or bypass are designed to accommodate minor plumbing misalignments but are not designed to support 

the weight of a system or the plumbing.

HYDROCARBONS SUCH AS KEROSENE, BENZENE, GASOLINE, ETC., MAY DAMAGE PRODUCTS THAT CONTAIN O-RINGS OR 

PLASTIC COMPONENTS. EXPOSURE TO SUCH HYDROCARBONS MAY CAUSE THE PRODUCTS TO LEAK. DO NOT USE THE 

PRODUCT(S) CONTAINED IN THIS DOCUMENT ON WATER SUPPLIES THAT CONTAIN HYDROCARBONS SUCH AS KEROSENE, 

BENZENE, GASOLINE, ETC. 
THIS WATER METER SHOULD NOT BE USED AS THE PRIMARY MONITORING DEVICE FOR CRITICAL OR HEALTH EFFECT 

APPLICATIONS

Do not use Vaseline, oils, other hydrocarbon lubricants or spray silicone anywhere. A silicone lubricant may be used on black o-rings but 

is not necessary.
The nuts and caps are designed to be unscrewed or tightened by hand or with the special plastic wrench. If necessary a pliers can be 

used to unscrew the nut or cap. Do not use a pipe wrench to tighten or loosen nuts or caps. Do not place a screwdriver in the slots on 

caps and/or tap with a hammer.

Do not use pipe dope or other sealants on threads. Use Teflon tape on the threaded inlet, outlet and drain fittings. Teflon tape is not 

necessary on the nut connection or caps because of o-ring seals.

After completing any valve maintenance involving the drive assembly or the drive cap assembly and pistons unplug power source jack 

from the printed circuit board (black wire) and plug back in or press and hold NEXT and REGEN buttons for 3 seconds.
This resets the electronics and establishes the service piston position. The display should flash all wording, then flash the software version 

and then reset the valve to the service position.
All plumbing should be done in accordance with local plumbing codes. The pipe size for the drain line should be a minimum of ½”. 

Backwash flow rates in excess of 7 gpm or length in excess of 20’ require ¾” drain line.
Solder joints near the drain must be done prior to connecting the drain line flow control fitting. Leave at least 6” between the drain line 

control fitting and solder joints when soldering pipes that are connected on the drain line control fitting. Failure to do this could cause 

interior damage to the drain line flow control fitting.
When assembling the installation fitting package (inlet and outlet), connect the fitting to the plumbing system first and then attach the nut, 

split ring and o-ring. Heat from soldering or solvent cements may damage the nut, split ring or o-ring. Solder joints should be cool and 

solvent cements should be set before installing the nut, split ring and o-ring. Avoid getting primer and solvent cement on any part of the 

o-rings, split rings, bypass valve or control valve.
Plug  into  an  electrical  outlet.  Note: All  electrical  connections  must  be  connected  according  to  local  codes.  (Be  certain  the  outlet  is 

uninterrupted.)
Install grounding strap on metal pipes.

This glass filled Noryl (or equivalent) fully automatic control valve is designed as the primary control center to direct and regulate all cycles 

of a water softener or filter. The control valve can be set to regenerate on demand (consumption of a predetermined amount of water) and/

or as a time clock (passage of a particular number of days). The control valve can be set so that a softener can meet the Water Quality 

Association (WQA) Standard S100 or NSF/ANSI Standard 44 efficiency rating.

It is not recommended to change control valves from downflow to upflow brining or vice versa in the field. The valve bodies 

for downflow and upflow are unique to the regeneration type and should not be interchanged. A mismatch of valve body and 

regeneration piston will result in hard water bypass during service.

The control valve is compatible with a variety of regenerants and resin cleaners. The control valve is capable of routing the flow of water 

in the necessary paths to regenerate or backwash water treatment systems. The injector regulates the flow of brine or other regenerants. 

The control valve regulates the flow rates for backwashing, rinsing, and the replenishing of treated water into a regenerant tank, when 

applicable. The control valve uses no traditional fasteners (e.g. screws); instead clips, threaded caps and nuts and snap type latches are 

used. Caps and nuts only need to be firmly hand tightened because radial seals are used. Tools required to service the valve include one 

small blade screw driver, one large blade screw driver, pliers and a pair of hands. A plastic wrench is available which eliminates the need 

for screwdrivers and pliers. Disassembly for servicing takes much less time than comparable products currently on the market. Control 

valve installation is made easy because the distributor tube can be cut ½” above to ½” below the top of tank thread. The distributor tube 

is held in place by an o-ring seal and the control valve also has a bayonet lock feature for upper distributor baskets.

The AC adapter comes with a 15 foot power cord and is designed for use with the control valve. The AC adapter is for dry location use 

only. The control valve remembers all settings until the battery power is depleted if the power goes out. After the battery power is depleted, 

the only item that needs to be reset is the time of day; other values are permanently stored in the nonvolatile memory. The control valve 

battery is not rechargeable but is replaceable.

Allow one foot of clearance to service the valve. 

GENERAL INSTALLATION AND SERVICE WARNINGS

Summary of Contents for diamond 7-LXC-50B

Page 1: ...free service When installed in accordance with the following instructions and if given reasonable care clear soft water will be the result For servicing and future inspection purposes please file this...

Page 2: ...ss Note Add 4 grains per gallon of hardness for each ppm iron for total compensated hardness Total Grains per Day INSTALLATION DATE SERIAL NUMBER INSTALLER NAME PHONE ADDRESS TABLE OF CONTENTS Job Spe...

Page 3: ...nt cement on any part of the o rings split rings bypass valve or control valve Plug into an electrical outlet Note All electrical connections must be connected according to local codes Be certain the...

Page 4: ...the softener cannot be subject to a vacuum due to loss of pressure such as a water main break or submersible well pump check valve failure WATER TEMPERATURE The range of water temperature is 40 F to 1...

Page 5: ...ility without the need for tools The bypass body and rotors are glass filled Noryl or equivalent and the nuts and caps are glass filled polypropylene All seals are self lubricating EPDM to help preven...

Page 6: ...ical plumbing should be done in accordance to all local codes INSTALLATION INSTRUCTIONS BRINE LINE FITTING CONNECTIONS DRAIN LINE FITTING CONNECTION USING 5 8 POLY TUBE C l i c k t o b u y N O W PDF X...

Page 7: ...the control valve with a locking clip The locking clip allows the elbow to rotate 270 degrees so the outlet can be oriented towards the brine tank 8 Connect the brine line polytubing found with the b...

Page 8: ...HEATER DRAIN LINE AIR GAP ADAPTER COLD HOT LOCATE WATER SOFTENER AS CLOSE AS POSSIBLE TO BRINE TANK A SIX FOOT LENGTH OF 3 8 O D BRINE LINE POLYTUBE SUPPLIED WITH BRINE TANK LOCATE WATER SOFTENER CLO...

Page 9: ...full is recommended SANITIZING Use 2 oz of 5 unscented household chlorine bleach for each cubic foot of resin Pour bleach directly into the 4 diameter white brine well located inside the brine tank P...

Page 10: ...Set the amount of hardness in grains of hardness as calcium carbonate per gallon using the or buttons The default is 20 with value ranges from 1 to 150 in 1 grain increments Note The grains per gallon...

Page 11: ...urn to previous digit Banner Text Set the banner text up to a maximum of 44 characters Use the or to select letters of the alphabet numbers ampersand or a space in the banner text Press NEXT to forwar...

Page 12: ...Adaptor Input Voltage Hertz 120V AC 60 Hz AC Adaptor Output Voltage Current 12V AC 500 mA 3 Volt Lithium Coin Cell Battery type 2032 PC Board Relay Terminal Block DC Output Voltage 12V DC Relay Speci...

Page 13: ...7 2 7 4 2 Brine Line Re Fill Flow Control GPM 0 5 0 5 0 5 0 5 0 5 Injector color 1C Violet 1E White 1E White 1F Blue 1H Green X FACTOR SERIES LXC SPECIFICATIONS MODEL NUMBER 7 LXC 50B PACKED BED 7 LX...

Page 14: ...3 0 4 5 6 0 9 0 Medium 4 0 5 3 8 0 10 7 16 0 High 7 5 10 0 15 0 20 0 30 0 GALLONS WATER TO DRAIN at 40 50 60 PSI Inlet Pressure Low 38 4 39 6 40 4 60 8 62 5 63 8 61 5 63 3 64 5 94 5 96 3 98 0 142 5 14...

Page 15: ...0 Re FILL Minutes Low 1 5 2 3 3 0 Medium 2 7 4 0 5 3 High 5 0 7 5 10 0 GALLONS WATER TO DRAIN at 40 50 60 PSI Inlet Pressure Low 18 5 20 0 21 3 60 4 62 1 63 4 26 8 28 5 29 8 Medium 19 0 20 6 21 8 61...

Page 16: ...39 LBS Ion Exchange Resin for Model 7 LX 75B 1 A4074 1 Cu Ft 52 LBS Ion Exchange Resin for Model 7 LX 100B 1 A4074 1 1 2 Cu Ft 78 LBS Ion Exchange Resin for Model 7 LX 150B 1 A4074 2 Cu Ft 104 LBS Ion...

Page 17: ...ging the power adapter from the wall Battery Fully Seated When replacing the battery align positives and push down to fully seat X FACTOR FRONT COVER AND DRIVE ASSEMBLY After completing any valve main...

Page 18: ...on caps and or tap with a hammer 1 2 3 4 5 INJECTOR CAP INJECTOR SCREEN INJECTOR PLUG AND O RING Drawing No Order No Description Qty 1 V3005 Spacer Stack Assembly 1 2 V3004 Drive Cap Assy 1 3 V3178LP...

Page 19: ...ith the service spanner wrench If necessary a pliers can be used to unscrew the nut or cap Do not use a pipe wrench to tighten or loosen nuts or caps Do not place a screwdriver in slots on caps and or...

Page 20: ...r Assembly Drawing No Order No Description Quantity 1 V3151 Nut 1 Quick Connect 2 2 V3150 Split Ring 2 3 V3105 O Ring 215 2 4 V3191 Vertical Adapter 2 INSTALLATION FITTING ASSEMBLIES 4 Water Flow Prop...

Page 21: ...V3148 Bypass Rotor Seal Retainer 2 8 V3152 O ring 135 2 9 V3155 O ring 112 2 10 V3156 O ring 214 2 BYPASS VALVE Order No V3193 Although no tools are necessary to assemble or disassemble the valve the...

Page 22: ...der No V3007 07 Description Fitting 1 1 PVC Solvent Assembly Drawing No Order No Description Quantity 1 V3151 Nut 1 Quick Connect 2 2 V3150 Split Ring 2 3 V3105 O Ring 215 2 4 V3352 Fitting 1 1 PVC So...

Page 23: ...abinetAsm_1 15 XX 1 64 MODEL 005 DWG X CabinetAsm_GeneralDim18 X XX X 0 5 Units Inch ORDERING INFORMATION The cabinet requires two part numbers when ordering one part number for the base assembly w sy...

Page 24: ...esistance is felt before latching then notches are not fully engaged the piston rod is not in hole the wires are jammed between the drive bracket and drive back plate or the gear is not engaging the d...

Page 25: ...n the drive cap assembly Continue to tighten the drive cap assembly using a screwdriver as a ratchet until the black o ring on the spacer stack assembly is no longer visible through the drain port Exc...

Page 26: ...not be used to clean the injector Scoring the injector or increasing the diameter of the hole could change the operating parameters of the injector Push the plug s and or injectors firmly in place re...

Page 27: ...ace meter f Defective PC Board f Replace PC Board 4 Control valve regenerates at wrong time of day a Power outage a Reset time of day If PC Board has battery back up present the battery may be deplete...

Page 28: ...leaking fixtures that may be exhausting capacity or system is undersized 10 Residual regenerant being delivered to service a Low water pressure a Check incoming water pressure water pressure must rem...

Page 29: ...supply from PC Board for 5 seconds and then reconnect c Missing reduction gears c Replace missing gears 15 Err 102 Control valve motor ran too short and was unable to find the next cycle position and...

Page 30: ...or disconnect power supply from PC Board for 5 seconds and then reconnect Then re program valve to proper setting b MAV NHBP motor wire not connected to PC Board b Connect MAV NHBP motor to PC Board t...

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