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SMMS-i
Installation Manual
EN
SMMS-i
Installation Manual
Adding refrigerant
After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant.
Calculation of additional refrigerant charge amount
Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site.
For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.
NOTE
If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner without additional
refrigerant.
Table 1
Heat pump
type
Outdoor unit type MAP080 MAP100 MAP120 MAP140 MAP160
Charging amount (kg) 11.5
Cooling only
type
Outdoor unit type MAP080 MAP100 MAP120 MAP140 MAP160
Charging amount (kg) 10.5 10.5 10.5 11.5 11.5
Additional refrigerant charge
amount at local site
=
Real length of liquid pipe
×
Additional refrigerant charge
amount per 1m liquid pipe
(Table 1)
+
Corrective amount of refrigerant
depending on HP of co-
operating outdoor units
(Table 2)
Liquid pipe dia. (mm) 6.4 9.5 12.7 15.9 19.1 22.2
Additional refrigerant amount/1m liquid
pipe (kg/m)
0.025 0.055 0.105 0.160 0.250 0.350
Table 2
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.
Combined HP (HP) Combined outdoor units (HP)
C (Corrective amount
of refrigerant) (kg)
Standard type
88HP––– 1.5
10 10HP – – – 2.5
12 12HP – – – 3.5
14 14HP – – – 8.5
16 16HP – – – 10.5
18 10HP 8HP – – 0.0
20 10HP 10HP – – 3.0
22 12HP 10HP – – 5.0
24 12HP 12HP – – 7.5
26 16HP 10HP – – 8.5
28 16HP 12HP – – 9.5
30 16HP 14HP – – 11.5
32 16HP 16HP – – 12.5
34 12HP 12HP 10HP – 3.0
36 12HP 12HP 12HP – 4.0
38 16HP 12HP 10HP – 6.0
40 16HP 12HP 12HP – 7.0
42 16HP 14HP 12HP – 8.0
44 16HP 16HP 12HP – 10.0
46 16HP 16HP 14HP – 12.0
48 16HP 16HP 16HP – 14.0
High Efficiency type
16 8HP 8HP – – 0.0
24 8HP 8HP 8HP – -4.0
26 10HP 8HP 8HP – -4.0
28 10HP 10HP 8HP – -2.0
30 10HP 10HP 10HP – 0.0
32 8HP 8HP 8HP 8HP -6.0
34 10HP 8HP 8HP 8HP -6.0
36 10HP 10HP 8HP 8HP -6.0
38 10HP 10HP 10HP 8HP -6.0
40 10HP 10HP 10HP 10HP -5.0
42 12HP 10HP 10HP 10HP -4.0
44 12HP 12HP 10HP 10HP -2.0
46 12HP 12HP 12HP 10HP 0.0
48 12HP 12HP 12HP 12HP 2.0
31-EN 32-EN
+00EH99871699_01EN.book Page 16 Thursday, August 26, 2010 4:41 PM