Mitsubishi PUMY-125VM, Техническое и сервисное руководство

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4 DATA
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 page14-30.
(1) Capacity of indoor unit
Cooling
13,026
Heating
9.2
Cooling
9.4
Heating
5.98
Cooling
6.15
Heating
14,288
Capacity (kcal/h) Outdoor unit power consumption (kW) Outdoor unit current (A)
4-1-2. Method for obtaining the heating and cooling capacity of an indoor unit:
(1) The capacity of each indoor unit (kcal/h) = 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 :
25
o
2 + 50
o
2=150 kcal/h
Therefore, the capacity of PKFY-P25VAM and
PLFY-P50VLMD will be calculated as follows by
using the formula in 4-1-2. (1) :
Model 25=13,026
o
= 2,171 kcal/h
Model 50=13,026
o
= 4,342 kcal/h
• The total model capacity of indoor unit is :
28
o
2 + 56
o
2=168 kcal/h
Therefore, the capacity of PKFY-P25VAM and PLFY-
P50VLMD will be calculated as follows by using the
formula in 4-1-2. (1) :
Model 25=14,288
o
= 2,381 kcal/h
Model 50=14,288
o
= 4,762 kcal/h
25
150
28
168
56
168
50
150
(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-125YM
• Indoor unit PKFY-P25VAM
o
2 , PLFY-P50VLMD
o
2
2
According to the conditions in
1
, the total capacity of the indoor unit will be: 25
o
2 + 50
o
2 = 150
3
The following figures are obtained from the 150 total capacity row of the standard capacity table (page 24):
Model 20
Model Number for indoor unit
Model Capacity
22
20
Model 25
28
25
Model 32
36
32
Model 40
45
40
Model 50
56
50
Model 63
71
63
Model 71
80
71
Model 80
90
80
Model 100
112
100
Model 125
140
125
A B
As for PUMY-71VM
2
, 125VM
2
, 125YM
1
, 125YMA, 125VMA and
125VMA
1
, see the value here to check the stadard capaity.
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