Maytag MWF4200AWS Technical Information download pdf (Page 46)

4-14

When treating surface water sources, the MAYTAG External Prefilter is required. Failure to provide

this level of prefiltration may lead to System damage endangering the homeowner, potentially causing

injury and in serious cases even death.

4.6.2 MAYTAG Controllers

The main function of the MAYTAG System Controller is to perform automatic daily cleaning of the

System. In order to address the different water types, sources and qualities, a series of System Controllers

were developed. All are listed and described below.

4.6.2.1 Base Controller

(included with MWF 4100 AWS and MWF 4200 AWS)

The Base Controller has been designed for use on municipally treated, well, and cistern sources with

turbidities up to 1.0 NTU (turbidity units). The Base Controller provides a daily cleaning procedure by

performing a number of front / backpulse cycles. As a result, cleaning effectiveness for surface waters and

for sources that have turbidity levels greater than 1.0 NTU is limited.

Figure 4.15 - MAYTAG Base Controller

The Base Controller, shown in Figure 4.15, can be programmed to perform a number of different Front /

Backflush sequences depending on the quality of the water within the constraints given below. This

Controller uses 2 “AA” batteries to save the program settings during power outages. It also contains a fuse

to prevent internal damage during lightning events or other power surges.

4.6.2.1.1 Base Controller Application Summary

Table 4.1 - Base Controller Applications

Program Water Quality Requirements,

Source Water Turbidity (NTU)

Household Water Use Household

Occupants

#1 <0.5 Up to 1135 LPD (300 USgpd) Up to 4 people

#2 <0.5 Peaks to 1.0NTU, <5% of time Up to 1135 LPD (300 USgpd) Up to 5 people

#3 <0.5 Peaks to 1.0 NTU, <5% of time Up to 1510 LPD (400 USgpd) Up to 6 people

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

Based on 350 litres (93 USgal) per day per capita.

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 134 135

No comments

Maytag MWF4200AWS Technical Information Page 46