Plumbing Africa September 2021 | Page 26

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FEATURE
Brand
* kW
** Heating capacity
COP
Type
Residential
Commercial
Industrial
Pool
Max set temp heating
Working ambient temp
Training offered
Kwikpump Small type
0.66
2.53
3.83
Air to water
X
75 C
-7 to 43 C
Yes
0.96
3.85
4.01
X
75 C
-7 to 43 C
Yes
1.43
5.5
3.85
X
X
75 C
-7 to 43 C
Yes
Intergrated 150L
0.9
3.6
4.0
Air to water
X
75 C
-7 to 43 C
Yes
200L
0.9
3.6
4.0
X
75 C
-7 to 43 C
Yes
300L
0.9
3.6
4.0
X
75 C
-7 to 43 C
Yes
Large type
2.0
7.7
3.85
Air to water
X
75 C
-7 to 43 C
1.8
7.0
3.89
X
X
75 C
-7 to 43 C
3.25
12.5
3.85
X
X
75 C
-7 to 43 C
4.5
17.0
3.78
X
X
75 C
-7 to 43 C
6.5
25.0
3.85
X
X
75 C
-7 to 43 C
9.0
34.0
3.78
X
X
75 C
-7 to 43 C
13.5
50.0
3.70
X
X
75 C
-7 to 43 C
18.0
68.0
3.78
X
75 C
-7 to 43 C
RSA 3.5 200L 5.6
MD Thermal water heating ***
X 60 C -5 to 45 C Yes
5.2 300L 5.6 X X 60 C -5 to 45 C Yes 7.1 500L 5.6 X 55 C -5 to 45 C Yes 11.2 1000L 5.6 X 55 C -5 to 45 C Yes
STH / HydraTherm
0 . 908
3 . 8
4 . 18
Split type
X
60 C
-7 to45 C
Yes
1.650
6.8
4.14
X
X
60 C
-7 to 45 C
Yes
2.375 C
9.5
4.0
X
X
60 C
-7 to 45 C
Yes
0.450
1.65
3.6
Integrated
X
60 C
-7 to 45 C
Yes
0.460
1.8
3.91
X
60 C
-7 to 45 C
Yes
Explanatory notes . * Input power - outdoor ambient temp is DB / WB 20degC / 15deg C , inlet water temp 15deg C , outlet water 55deg C .
** Heating capacity - Outdoor ambient temp is DB / WB 20deg C / 15deg C , inlet water temp 15deg C , outlet water 55deg C
The coefficient of performance or COP ( sometimes CP or CoP ) of a heat pump , refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work ( energy ) required . Higher COPs equate to higher efficiency , lower energy ( power ) consumption and thus lower operating costs .
A heat pump can be used both to heat and cool a space . It is essentially an air conditioner and a heating unit all in one . Critical to its effectiveness is the ambient temperature at point of installation .
National standards relevant to heat pumps : SANS 10400 XA / XA2 – 50 % of energy usage must come from alternative sources . SANS 10252-1 – Design and Part 2 installation . SANS 1687:2018 , SANS 1352 , SANS 151 ( performance ), SANS 204 , NRCS LOA . PA
*** Actual Tests available
www . plumbingafrica . co . za @ plumbingonline @ plumbingonline @ PlumbingAfricaOnline September 2021 Volume 27 I Number 7