Technical specifications – Davey SCMax 77 ECOMATIC Salt Water Pool Sanitizing System User Manual
Page 4
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.