Mitsubishi Heavy Industries SCM71ZM-S1 Technical Manual page 194

(3) Defrost operation
(a)
(i)
(ii)
(iii)
(iv)
(Tho-A) (Tho-R) > = 0.44 × (Tho-A) + A
Tho-A
2 °C < = Tho-A
15 °C < = Tho-A <
Tho-A < 15 °C
0
-5
-10
-15
-20
-20 -15
Outdoor air temperature (℃)
(v)
−
2
(b)
(i)
(ii)
(iii)
Heating operation
40
40
Tho-R
−
2
Tho-A
A
4
6
2 °C
6
0
-5
-10
Defrost operation
start
-15
-10 -5 0 5
-20
-20 -15 -10
Outdoor air temperature (℃)
Tho-R
Tho-R
Defrost operation
Heating operation
Max. 12 minutes and 50 seconds
※ Depends on an operation condition, the time can be longer than 7 minutes.
Defrost operation
start
10
-5 0 5
(i) (ii) (iii) (v)
20
1 8 º
Defrost operation
2~7 minutes※
Max. 12 minutes and 50 seconds
Hot keep operation
※ Depends on an operation condition, the time can be longer than 7 minutes.
193
- -
'17 • SCM-T-225
satisfied
Tho-R
10
−
Tho-R 2
conditions satisfied
2~7 minutes※
Hot keep operation