3
Refrigerant Piping
<Cooling,Heat pump type>
Table 2 (For HT8P-E, T8P-E model)
Additional refrigerant charge amount Indoor unit Standard Indoor
unit
Fresh Air Intake
I
Hot water
Module
ndoor Unit
Air to Air Heat
exchanger with
DX-coil
Additional refrigerant charge amount
kg/HP
0.4
0.2
0
0
.2
Table 3 (For HT8P, HT7P, T8P, T7P model)
Pipe dia. at liquid side
mm
Ø
6.4
Ø
9.5
Ø
12.7
Ø
15.9
Ø
19.0
Ø
22.2
Additional refrigerant amount/1m
kg/m
0.025
0.055
0.105
0.160
0.250
0.350
Charging of refrigerant
•
Keeping the valve of the outdoor unit closed, be sure to charge the liquid refrigerant into the service port at the
liquid side.
•
If the specified amount of refrigerant cannot be charged, fully open the valves of the outdoor unit at liquid and
gas sides, operate the air conditioner in COOL mode, and then charge refrigerant into service port at the gas
side. In this time, choke the refrigerant slightly by operating the valve of the canister to charge liquid refrigerant.
•
The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually
Additional refrigerant charge amount
MMY-MAP***6T8P-E
Additional refrigerant charge amount at site = [1] + [2] + [3]
[1]. Compensation by system HP (Table 1)
[2]. Additional refrigerant charge amount Indoor unit (Table 2)
[3]. (Real length of liquid pipe × Additional refrigerant charge amount per liquid pipe 1 m (Table 3) ) × 1.2
Table 1
Space saving model
High efficiency / High Diversity model
System
Combination
Charged
refrigerant
Compensation
by System
HP
System
Combination
Charged
refrigerant
by System
HP
HP
HP
kg
kg
HP
HP
kg
kg
8
8
10.5
-3.5
20
10
10
21
-7.0
-7.0
12
10
21
12
12
12
31.5
32.5
-12.5
14
12
12
-10.5
14
14
12
33.5
-8.5
14
14
14
34.5
34.5
-4.5
-4.5
16
14
14
20
20
14
34.5
1.5
10
10
10.5
-3.5
22
12
12
10.5
-1.5
36
14
14
11.5
-1.0
38
16
16
11.5
-0.5
40
18
18
11.5
1.5
42
20
20
11.5
1.5
44
22
22
11.5
1.5
54
24
12
12
21
-3.0
26
14
12
22
-2.5
28
16
12
22
-2.0
30
16
14
23
-
-
1.5
32
16
16
23
1.0
34
18
16
23
1.0
36
20
16
23
1.0
38
22
16
23
1.0
40
20
20
23
3.0
42
22
20
23
3.0
44
22
22
23
3.0
46
16
16
14
34.5
-6.5
48
16
16
16
34.5
-6.5
50
18
16
16
34.5
-0.5
52
20
16
16
34.5
-0.5
54
22
16
16
34.5
-0.5
56
20
20
16
34.5
2.5
58
22
20
16
34.5
2.5
60
22
22
16
34.5
2.5
Note :
14HP* = MMY-MAP1406T8P , MMY-MAP1406T7P
18HP* = MMY-MAP1806T8P , MMY-MAP1806T7P
Compensation
When the system is charged with refrigerant at the factory, the amount of refrigerant needed for the pipes at the site
is not included. Therefore, calculate the additional amount needed and add the required amount to the system.
(Calculation)
0806
10.5kg 10.5kg 10.5kg 10.5kg 11.5kg 11.5kg 11.5kg 11.5kg 11.5kg 11.5kg
1006
1206
14B6
1406
Cooling only model
Refrigerant amount
charged in factory
18B6
1806
2006
2206
1606
For T8P,T7P model
Summary of Contents for SMMS-e
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