Performance Graph - LG R5TT20F-SA1 Engineering Product Data Book

Heat Pump Water Heater
8. Capacity Tables

8.2 Performance Graph

Ambient
Recovery Time (hour)
Temperature
℃ Auto
-5 5.66
-4 5.77
0 6.20
5 6.74
10 6.36
15 5.99
20 5.61
25 5.23
30 4.86
35 4.48
40 4.10
48 3.50
10.00
H/P
9.00
8.00
7.00
Auto
6.00
5.00
4.00
Turbo
3.00
2.00
1.00
0.00
‐5 5 15
Air temperature(℃)
6.00
Low Draw ( No Heater Operation)
water tank temp. 45℃ → 52℃
5.00
4.00
3.00
2.00
1.00
0.00
‐5 5 15
Ambient temperature(℃)
11
- 50 Hz (R134a)
H/P Turbo
9.39 5.46
9.06 5.37
7.78 5.01
6.17 4.57
5.81 4.45
5.46 4.34
5.11 4.22
4.76 4.11
4.40 3.99
4.05 3.87
3.70 3.76
3.14 3.57
water tank temp. 10℃ → 52℃
5 2 35 5 4 55
Auto
H/P
Turbo
5 2 35 5 4 55
COP of High Draw
Auto H/P Turbo
1.12 2.25 1.12
1.14 2.30 1.13
1.21 2.52 1.20
1.42 2.77 1.40
1.46 3.06 1.45
1.51 3.34 1.49
1.55 3.63 1.53
1.60 3.91 1.57
1.65 4.20 1.61
1.69 4.48 1.65
1.74 4.77 1.70
1.81 5.22 1.76
Note
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible. Do not extrapolate.
3. Capacities are based on the following conditions :
‐ Indoor Air Temperature : 70 °F (20.0 °C) DB / 60 °F (14.0 °C) WB
6.00
High Draw ( Heater Operation)
water tank temp. 10℃ → 52℃
5.00
4.00
3.00
2.00
1.00
0.00
‐5 5
COP of Low Draw
Auto H/P
1.69 1.69
1.76 1.73
2.04 1.88
2.11 1.80
2.55 2.08
2.98 2.37
3.42 2.66
3.86 2.95
4.30 3.24
4.73 3.53
5.17 3.81
5.87 4.28
15 25 5 3 45
Ambient temperature(℃)
Turbo
1.50
1.53
1.65
1.53
1.77
2.01
2.25
2.50
2.74
2.98
3.23
3.61
H/P
Auto
Turbo
55