8-Step Demand Control; 12-Step Demand Control - Mitsubishi Electric PUHY-P200 Service Handbook

[ II Restrictions ]
3) 8-step demand control (When SW4-4 is set to ON on two outdoor units)
Demand capacity is shown below.
8-step demand
No.1 CN3D
*1. The outdoor units whose SW4-4 is set to ON are designated as No. 1and No. 2 in the order of address from small to large.
Ex) When outdoor units whose SW4-4 is set to ON are designated as OS1 and OS2, OS1=No. 1 and OS2=No. 2.
4) 12-step demand control (When SW4-4 is set to ON on three outdoor units)
Demand capacity is shown below.
12-step No.2 CN3D
demand
No.3 CN3D
No.1 1-2P
CN3D
Open
Short-circuit
12-step No.2 CN3D
demand
No.3 CN3D
No.1 1-2P
CN3D
Open
Short-circuit
*1. The outdoor units whose SW4-4 is set to ON are designated as No. 1, No. 2, and No. 3 in the order of address from small
to large.
Ex) When outdoor units whose SW4-4 is set to ON are designated as OC, OS1, and OS2, OC=No. 1, OS1=No. 2, and
OS2=No. 3.
HWE10040
1-2P
1-2P 1-3P
Open Open
Short-circuit
Short-circuit Open
Short-circuit
1-2P
1-3P
1-2P Open
1-3P Open
Open 100%
Short- 67%
circuit
Open 92%
Short- 84%
circuit
1-2P
1-3P
1-2P Open
1-3P Open
Open 92%
Short- 59%
circuit
Open 84%
Short- 75%
circuit
No.2 CN3D
Open
Open Short-circuit
100%
50%
88%
75%
Open
Open
Short-circuit
Short- Open Short-
circuit circuit
67% 92% 84%
34% 59% 50%
59% 84% 75%
50% 75% 67%
Short-circuit
Open
Short-circuit
Short- Open Short-
circuit circuit
59% 84% 75%
25% 50% 42%
50% 75% 67%
42% 67% 59%
- 26 -
Short-circuit
Open
50% 88%
0% 38%
38% 75%
25% 63%
Short-circuit
Open Short-circuit
Open Short- Open
circuit
67% 34% 59%
34% 0% 25%
59% 25% 50%
50% 17% 42%
Short-circuit
Open Short-circuit
Open Short- Open
circuit
84% 50% 75%
50% 17% 42%
75% 42% 67%
67% 34% 59%
Short-circuit
75%
25%
63%
50%
Short-
circuit
50%
17%
42%
34%
Short-
circuit
67%
34%
59%
50%
GB