Check List - Toshiba MMU-AP0091H Installation Manual
Super modular multi outdoor / indoor unit air conditioners
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Also See for MMU-AP0091H:
- Service manual (271 pages) ,
- Owner's manual (220 pages) ,
- Owner's manual installation and operation (91 pages)
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• Check the additional amount of refrigerant.
<Check list>
Calculate the additional amount of refrigerant from the additional amount of refrigerant (A) by the pipe diameter
at liquid side and the pipe length to be connected and the corrective amount of refrigerant (C) by the system
HP.
Additional amount
of refrigerant
Firstly enter the total length for each liquid pipe in the following table, and then calculate the additional amount of
refrigerant by pipe length.
<Additional amount of refrigerant by pipe length>
Pipe dia at
Standard amount of refrigerant
liquid side
Ø6.4
0.025 ×
Ø9.5
0.055 ×
Ø12.7
0.105 ×
Ø15.9
0.160 ×
Ø19.1
0.250 ×
Ø22.2
0.3505 ×
Next, refer to the following table for the corrective amount of refrigerant (C) by system HP.
<Corrective amount of refrigerant by system HP>
System horse
power HP
Unit
Unit
1
2
5
5
6
6
8
8
10
10
12
12
14
8
6
16
8
8
18
10
8
20
10
10
22
8
8
22
12
10
24
8
8
24
12
12
26
10
8
Lastly add the additional amount of refrigerant by pipe length (A) to the corrective amount of refrigerant by
system HP (C). It is the final additional amount of refrigerant.
As the result, If minus sign is indicated, do not add the refrigerant (=0kg).
<Additional amount of refrigerant>
Additional amount of refrigerant by pipe length (A)
Corrective amount of refrigerant by system HP (C)
Additional amount of refrigerant (A) + (C)
Real liquid
Additional amount of
=
×
pipe length
refrigerant per liquid pipe 1m
Total pipe length at each liquid side
kg/m
Additional amount of refrigerant by pipe
length (A)
Normal type
Unit
Unit
Corrective amount
3
4
of refrigerant (C) kg
0
0
1.5
2.5
3.5
0
0
0
3.0
6
0
5.0
8
–4.0
7.0
8
–4.0
(A)
=
=
=
=
=
=
System horse
power HP
Unit
1
28
10
30
10
32
8
32
12
34
10
34
12
36
10
36
12
38
10
40
10
42
12
44
12
46
12
48
12
kg
kg
kg
38
Corrective amount of
+
refrigerant by system HP
(C)
Additional amount of refrigerant pipe
dia at each liquid side kg
Normal type
Unit
Unit
Unit
Corrective amount
2
3
4
of refrigerant (C) kg
10
8
10
10
8
8
8
10
10
8
8
8
12
10
10
8
8
12
12
10
10
8
10
10
10
10
10
10
12
10
10
12
12
10
12
12
12
Kg
Kg
Kg
Kg
Kg
Kg
Kg
–2.0
0
–6.0
1.0
–6.0
3.0
–6.0
4.0
–6.0
–5.0
–4.0
–2.0
0
2.0
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