Mitsubishi Electric CITY MULTI PUHY-400YMF-B Service Handbook page 108

For steps 4 - 6
(Example 1)
A-minute
ON/OFF of
No.1 compressor
ON/OFF of
No.2 compressor
ON/OFF of
No.3 compressor
Step 4
(Example 2)
Less than
A-minute
ON/OFF of
No.1 compressor
ON/OFF of
No.2 compressor
ON/OFF of
No.3 compressor
(Example 3)
A-minute
ON/OFF of
No.1 compressor
ON/OFF of
No.2 compressor
ON/OFF of
No.3 compressor
5
minutes End of initial operation mode
10
minutes
Step 5 Step 6
Less than
A-minute
A-minute
Note 1
Step 4
Less than Less than
5 minutes 5 minutes
Step 4
Step 5
Step 4
Step 5
–105–
(A-minute Definitions)
Conditions
Constant capacity unit
power on 7 hours.
[ET or EPT-{(F-22)/22}]
1°C
[ET or EPT-{(F-22)/22}]
– 1.5°C
[ET or EPT-{(F-22)/22}]
– 20°C
Other
5
End of initial operation mode
minutes
10
minutes
Step 6
Step 5
5
minutes End of initial operation mode
10
minutes
Note 2
Step 6
Step 5
Step 4
Operation
A
Frequency Level (Hz)
0
–
minute
217 (For variable capacity
unit model 500) 10
162 (For variable capacity minutes
unit model 400)
25
100
minutes
50
100
minutes
Less than 100 7 hr