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Technical specifications – Davey SCMax 77 ECOMATIC Salt Water Pool Sanitizing System User Manual

Page 4

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4

Technical Specifications

Input Voltage (ac):

220-240V

Supply Frequency / Phase:

50/60Hz / Single

Maximum Input Current (ac):
M4920
M4921

2.5 Amp
5.0 Amp

Power Consumption @ 230V:
M4920
M4921

0.58 kW
1.15 kW

Output to Cell (dc):
M4920
M4921

22-24V / 9A
24-26V / 25 A

Chlorine Gas Output:
M4920
M4921

59 g/h, 3.12 lbs/d
118 g/h, 6.24 lbs/d

Ideal Salt Range:

4,500 - 6,000 ppm

Cooling:

Fan & Heatsinks

Electrolytic Cell Type:

Coated Titanium - Reverse Polarity

Maximum water temp (in cell):

45ºC OR 113 ºF

Minimum flow:
M4920
M4921

> 170 lpm *
> 350 lpm * / 95 USgallons/min
* Value based on a 10ppm chlorine level at cell outlet
Please refer to Flow Rate Requirements pg 6

Head loss @ 350lpm
M4920
M4921

8kPa
13.2kPa

Pipe Connections:

3” / 80mm or 2” / 50mm with adaptors

Dimensions – PowerSupply Enclosure

Height

Width

Depth

Mounting

Weight

inches

15.7

14.6

8.5

4 Holes:

10.6 W

12.8 H

37 lb

millimeters

400

370

215

4 Holes:

270 W

325 H

17 kg

Dimensions – Electrolytic Cell

Height

Width

Depth

Inlet / Outlet

(Actual ID)

Plumbing Holes

(From centre to

centre)

Weight

inches

8.1

16.3

4.9

3.5

11 &

3

/

4

6.6 lb

millimeters

206

415

125

89

294

3 kg

Flow Rate Requirement

Model

Nominal Rated Chlorine Gas Output

Minimum Flow Rate in Cell

SC Max 77

53 g/h

2.83 lbs/d

> 170 lpm

> 45 gpm

SC Max 155

106 g/h

5.65 lbs/d

> 235 lpm

> 63 gpm

NOTE: In certain installations, these minimum flow rates may be insufficient to fill the cell housing completely with
water – in these cases the flow must be increased to ensure that the cell plate surfaces are completely immersed,
otherwise damage will occur and decreased cell life will result.

This manual is related to the following products: