OUTDOOR POOL EXPOSURE (allowances made in above heating proles)
- Minor shading up to 25% at peak of winter. For 50% shading, add 10% to required heat pump capacity.
- Moderate exposure to wind. For high wind areas add 25% to required heating capacity. For sheltered areas deduct 25%.
- No allowance for water features. For Innity Edge, add equivalent area to pool surface area. For Waterfall, add 3 times area to pool
surface area.
- Average depth 1.5m nominal in ground pool. Additional heat loss expected for walls exposed to air or ground water.
- Number of swimmers entering pool each day based on 1 per 6m
2
pool area, i.e. 10 swimmers per day entering a 60m
2
pool.
SELECTION EXAMPLE.
50m
2
pool, Sydney, 28°C extended season only, no cover gives Prole H; with cover Prole L.
Selection: Given average day temperature during operation of 17°C, with no cover, model MWP 400 falls marginally short, whereas
with a cover a MWP 250 will maintain pool temperature comfortably, with less running hours.
100
90
80
70
60
50
40
30
20
0
Required Capacity (kW)
Pool Surface Area m
2
20 40 60 80 1000
K
J
120
F
B
H
N
C
E
G
L
Graph 1 - Pool Heating Profiles
A
M
D
50
10
10 90
70
11030
100
90
80
70
60
50
40
30
20
10
0
Heat Output kW
Average Temperature °C (dry bulb) during operation
10 15 20 25 305
MWP 250
MWP 230
MWP 400
MWP 800
Multiple units
required
Graph 2 - Nominal Output During Operating Hours
7 2717
Unit Selection (continued)
Key
A. 3500–4000 W/m
2
B. 2500–3500 W/m
2
C. 2100–2500 W/m
2
D. 1500–2100 W/m
2
E. 1250–1500 W/m
2
F. 1000–1250 W/m
2
G. 800–1000 W/m
2
H. 600–800 W/m
2
J. 450–600 W/m
2
K. 300–450 W/m
2
L. 200–300 W/m
2
M. 100–200 W/m
2
N. < 100 W/m
2
Disclaimer
Temperzone Ltd takes no responsibility for
the completeness, reliability and accuracy
of this information. It is a guide only. Any
action based on this information is strictly
at your own risk. Consult a professional
consultant for the most accurate selection
for your application.