Mitsubishi Electric PUMY-P112VKM1, Руководство по обслуживанию

Страница: 11 / 156

11
4
4-1. COOLING AND HEATING CAPACITY AND CHARACTERISTICS
4-1-1. Method for obtaining system cooling and heating capacity:
To obtain the system cooling and heating capacity and the electrical characteristics of the outdoor unit, first add up the ratings
of all the indoor units connected to the outdoor unit (see table below), and then use this total to find the standard capacity with
the help of the tables on "4-3. STANDARD CAPACITY DIAGRAM".
(1) Capacity of indoor unit
4-1-2. Method for obtaining the heating and cooling capacity of an indoor unit:
(1) The capacity of each indoor unit (kW) = the capacity A (or B )
o
(2) Sample calculation (using the system described above in 4-1-1. (2) ):
model capacity
total model capacity of all indoor units
During cooling: During heating:
• The total model capacity of the indoor unit is:
2.8
o
2 + 5.6
o
2=16.8kW
Therefore, the capacity of PKFY-P25VBM-E and
PLFY-P50VLMD-E will be calculated as follows
by using the formula in 4-1-2. (1):
Model 25=14.6
o
= 2.43 kW
Model 50=14.6
o
= 4.87 kW
• The total model capacity of indoor unit is:
3.2
o
2 + 6.3
o
2=19.0
Therefore, the capacity of PKFY-P25VBM-E and
PLFY-P50VLMD-E will be calculated as follows by
using the formula in 4-1-2. (1):
Model 25=16.33
o
= 2.75 kW
Model 50=16.33
o
= 5.41 kW
2.8
16.8
5.6
16.8
6.3
19.0
3.2
19.0
(2) Sample calculation
1
System assembled from indoor and outdoor unit (in this example the total capacity of the indoor units is greater than that of
the outdoor unit)
• Outdoor unit PUMY-P125YKM1
• Indoor unit PKFY-P25VBM-E
o
2 , PLFY-P50VLMD-E
o
2
2
According to the conditions in
1
, the total capacity of the indoor unit will be: 2.8
o
2 + 5.6
o
2 = 16.8
3
The following figures are obtained from the 16.8 total capacity of indoor units, referring the standard capacity diagram in
"
4-3-3. PUMY-P125VKM1(-BS) PUMY-P125YKM1(-BS) <cooling>" and
"
4-3-4. PUMY-P125VKM1(-BS)
PUMY-P125YKM1(-BS) <heating>" :
Model 20
Model Number
for indoor unit
Model
Capacity
2.2
Model 15
1.7
Model 25
2.8
Model 32
3.6
Model 40
4.5
Model 50
5.6
Model 63
7.1
Model 71
8.0
Model 80
9.0
Model 100
11.2
Model 125
14.0
Model 140
16.0
Model
Capacity
2.0 1.5 2.2 2.5 3.5 4.2 5.0 6.0 7.1
P • FY Series
M Series
S Series
P Series
Model 20
Model Number
for indoor unit Model 15
Model 22 Model 25 Mod 35 Model 42 Model 50 Model 60 Model 71
1.8
Model 18
8.0
Model 80
10.0
Model 100
DATA
Capacity (kW) Outdoor unit power consumption (kW)
Outdoor unit current (A)/400 V
Cooling Heating Cooling Heating Cooling Heating
A
14.60
B
16.33
3.51 3.44 5.34 5.23
OCH576