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Master programming mode sxt (continued) – Watts W110 Series User Manual

Page 16

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Master Programming Mode SXT

(continued)

4. Control Type (Display Code CT)

Press the Extra Cycle button . Use this display to set the Control

Type . This specifies how the control determines when to trigger a

regeneration . For details on how the various options function, refer

to the "Timer Operation SXT" section of this service manual . This

option setting is identified by "CT" in the upper left hand corner of

the screen . There are four possible settings .

Abbreviation

Parameter

Fd

Meter (Flow) Delayed

FI

Meter (Flow) Immediate

tc

Time Clock

dAY

Day of Week

Figure 15

5. Unit Capacity (Display Code C)

Press the Extra Cycle button . Use this display to set the Unit

Capacity . This setting specifies the treatment capacity of the system

media . Enter the capacity of the media bed in grains of hardness

when configuring a softener system, or desired volume capacity

when configuring a filter system . This option setting is identified by

"C" in the upper left hand corner of the screen (or by "V' if volume

capacity for a filter) . The Unit Capacity parameter is only available if

the control type has been set to one of the metered options . Use the

Up and Down buttons to adjust the value as needed .

Figure 16

Range: 1-9,999,000 grains/gallon (1-9,999,000 mg)

6. Feedwater Hardness (Display Code H)

Press the Extra Cycle button . Use this display to set the Feedwater

Hardness . Enter the feedwater hardness in grains per unit volume

for softener systems, or 1 for filter systems . This option setting is

identified by "H" in the upper left hand corner of the screen . The

feedwater hardness parameter is only available if the control type

has been set to one of the metered options . Use the Up and Down

buttons to adjust the value as needed .

Figure 17

Range: 1-199 grains (mg/l)

7. Reserve Selection (Display Code RS)

Press the Extra Cycle button . Use this display to set the Safety

Factor and to select the type of reserve to be used in your system .

This setting is identified by "RS" in the upper left-hand corner of

the screen . The reserve selection parameter is only available if the

control type has been set to one of the metered options . There are

two possible settings .

Abbreviation

Parameter

SF

Safety Factor

rc

Fixed Reserve Capacity

Figure 18

8. Safety Factor (Display Code SF)

Press the Extra Cycle button . Use this display to set the Safety

Factor . This setting specifies what percentage of the system

capacity will be held as a reserve . Since this value is expressed

as a percentage, any change to the unit capacity or feedwater

hardness that changes the calculated system capacity will result in a

corresponding change to the reserve volume . This option setting is

identified by "SF" in the upper left hand corner of the screen . Use the

UP and Down buttons to adjust the value from 0 to 50% as needed .

Figure 19

Range: 0-50%

9. Fixed Reserve Capacity (Display Code RC)

Press the Extra Cycle button . Use this display to set the Reserve

Capacity . This setting specifies a fixed volume that will be held as a

reserve . The reserve capacity cannot be set to a value greater than

one-half of the calculated system capacity . The reserve capacity is a

fixed volume and does not change if the unit capacity or feedwater

hardness are changed . This option setting is identified by "RC" in the

upper left-hand corner of the screen . Use the Up and Down buttons

to adjust the value as needed .

Figure 20

Range: 0-half of the calculated

W110 LXT Downflow Softeners and SXT Filters

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