Maytag MWF4200AWS Technical Information download pdf (Page 47)

4-15

The programs are described in more detail below. In each program, typical use patterns are defined as

water use of approximately 284 litres/day (75 USgpd) per person in the household.

• Program #1 Double Front / Backflush Cycle (3 minutes, 45 litres (12 USgal) water use). -

This program should be used for all residential applications that use up to 1135 litres/day (300

USgpd). Based on typical use patterns, under normal conditions, this program can be used for

households with up to four (4) occupants. This factory set default sequence will be sufficient for

most North American installations. Program #1 performs two consecutive Front / Backflush

Cycle once per day. This option uses the least amount of water and takes the least amount of time

to complete.

• Program #2 Triple Front / Backflush Cycle (5 minutes, 68 litres (18 USgal) water use) - This

program should be used for all residential applications that use up to 1135 litres/day (300 USgpd).

Based on typical use patterns, under normal conditions, this program can be used for households

with up to five (5) occupants. This sequence provides three consecutive Front / Backflush Cycles

once per day. This program can be set if the homeowner has detected a rapid drop in flow rate

from household water fixtures, indicating accelerated System fouling.

• Program #3 Quadruple Front / Backflush Cycle (7 minutes, 90 litres (24 USgal) water use) -

This program should be used for all residential applications that use up to 1510 litres/day (400

USgpd). Based on typical use patterns, under normal conditions, this program can be used for

households with up to six (6) occupants. The most rigorous of all Base Controller flush

sequences, this program performs four consecutive Front / Backflush Cycles once per day. This

program can be used to increase the degree of flushing and extend the life of the System.

4.6.2.2 Advanced Controller

(included with MWF 4300 AWS)

The Advanced Controller has been designed for use on all water sources having turbidities up to 5.0 NTU

(turbidity units), with peaks of up to 10 NTU for up to 5% of the time. The Advanced Controller must be

used for lake and river waters because it uses the Drain Cleaning Cycle in addition to the Front / Backflush

Cleaning Cycle to enhance the daily cleaning effectiveness.

Figure 4.16 - Advanced Controller

The Advanced Controller, shown in Figure 4.16, can be programmed to perform a number of different

cleaning sequences, depending on the quality of the water within the constraints given above. This

Controller uses 1 “AA” battery to save the program setting during power outages. It also contains automatic

circuit protection to prevent the internals from being damaged during lightning events or other power

surges.

Advanced Controller has not been performance tested and certified by NSF.

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 134 135

No comments

Maytag MWF4200AWS Technical Information Page 47