Mitsubishi Electric PUMY-P125VMA, Техническое и сервисное руководство

Страница: 15 / 92

15
5-3. CORRECTING COOLING AND HEATING CAPACITY
5-3-1. Correcting Changes in Air Conditions
(1)The performance curve charts (Figure 1, 2) show the rated capacity (total capacity) under the stated conditions when standard
length for piping (5m) is used. The rated power is derived from the capacity ratio and power ratio obtained for the indoor and
outdoor intake temperatures at time 1.
• Standard conditions:
• Use the rated capacity and rated power values given in the characteristics table for each indoor unit.
• The capacity is the single value on the side of the outdoor unit; the capacity on the sides of each indoor unit must be
added to obtain the total capacity.
(2)The capacity of each indoor unit may be obtained by multiplying the total capacity obtained in (1) by the ratio between the
individual capacity at the rated time and the total capacity at the rated time.
individual capacity at the rated time
Individual capacity under stated conditions = total capacity under the stated conditions
o
total capacity at the rated time
Service Ref. PUMY-P125VMA PUMY-P125YMA PUMY-P125YMA
1
Rated cooling capacity
Rated heating capacity
Indoor D.B. 27
°
C / W.B. 19
°
C
Outdoor D.B. 35
°
C
Indoor D.B. 20
°
C
Outdoor D.B. 7
°
C / W.B. 6
°
C
(3)Capacity correction factor curve
Figure 1. PUMY-P125VMA PUMY-P125YMA
PUMY-P125YMA
1
Cooling performance curve
0.4
-5 0 10 20 30 40 46
0.6
0.8
1.0
1.2
1.4
0.6
0.8
1.0
1.2
1.4
22
20
18
16
22
20
18
16
0.4
-12 -10 0 10 5 -5 15
0.6
0.8
1.0
1.2
1.4
0.6
0.8
1.0
1.2
1.4
15
20
25
20
15
25
Cooling
Capacity
(ratio)
Cooling
Power
consumption
(ratio)
Heating
Power
consumption
(ratio)
Heating
Capacity
(ratio)
INDOOR
<D.B. : >
INDOOR
<W.B. : >
INDOOR
<W.B. : >
INDOOR
<D.B. : >
Outdoor <D.B. : : >
Outdoor <W.B. : : >
Figure 2. PUMY-P125VMA PUMY-P125YMA
PUMY-P125YMA
1
Heating performance curve
OC272A--1.qxp 03.9.4 11:06 AM Page 15