1
3
2
A
B
[A-arrow view]
[B-arrow view]
figure 21
figure 20
figure 19
1
2
7
8
9
11
10
5
4
3
6
[Heat pump system]
[Heat recovery system]
1
2
3
4
5
∗
6
7
8
9
10
11
5
4
12
14
15
16
∗
17
[13]
figure 16
A B C
A B C
1
DS1
1
2
3
4
OFF
ON
O
U
T
I
N
TO IN/D
UNIT
F1 F2
A1P
A1P
DS1
1
2
3
4
OFF
ON
O
U
T
I
N
F1 F2
P1 P2
P1 P2
1
1
2
6
3
3
4
5
figure 17
figure 18
1
2
4
5
3
figure 22
1
≤
±15
2
3
3
[C-arrow view]
[D-arrow view]
1
4
5
C
D
(Fig. A)
(Fig. B)
(Fig. C)
figure 23
