Mitsubishi Electric NTXMSM36A142BA Technical & Service Manual page 17

(7) Comparison with Essential Load
Against the essential load 30.3 kBtu/h, the maximum system capacity is 32.4 kBtu/h: Proper outdoor units have been selected.
(8) Calculation of Maximum Indoor Unit Capacity of Each Room
CTx = CTi, thus, calculate by the calculation below
Room1
Indoor Unit Rating × Indoor Design Temperature Correction
= 15.0 × 1.02
= 15.3 kBtu/h
Room2
Indoor Unit Rating × Indoor Design Temperature Correction
= 18.0 × 0.95
= 17.1 kBtu/h
Go on to the heating trial calculation since the selected units fulfill the cooling loads of Room 1, 2.
<Heating>
Outdoor Design Wet Bulb Temperature
Total Heating Load
Room1
Indoor Design Dry Bulb Temperature
Heating Load
Room2
Indoor Design Dry Bulb Temperature
Heating Load
<Other>
Indoor/Outdoor Equivalent Piping Length
Capacity of indoor unit
<TP•FY series>
Model Number Model
for indoor unit 004
Model
4.5
Capacity
<N*X, T(A)P*A series>
Model name
06 09
N * XAMT ** A112A * - -
N * XCKS ** A112A * - 10.2
N * XDKS ** A112A * - 10.9
N * XFKS ** A112A * - 10.9
N * XUKS ** A112B * - 10.9
N * XUKS ** A112A * 6.0 -
N * XWPH ** A112A * 6.0 10.9
N * XWPH ** B112A * 6.0 10.9
N * XWST ** A112A * 6.0 10.9
N * XWST ** B112A * 6.0 10.9
* PEADA0 ** 1AA80 * - 10.9
* PLA0A0 ** 1EA70 * - -
OCHT810A
OK: fulfills the load 13.6 kBtu/h
OK: fulfills the load 16.7 kBtu/h
Design Condition
Model Model Model Model
005 006 008 012
5.6 6.7 9.0 13.5
Capacity class
12 15 18 24 30
12.0 - 18.0 27.0 34.0
13.7 17.1 - - -
13.6 18.0 17.2 - -
13.0 18.0 21.0 - -
13.0 - 21.0 - -
- - - - -
13.6 18.0 20.3 - -
13.6 18.0 20.3 - -
14.4 18.0 21.6 27.6 -
14.4 18.0 21.6 27.6 -
13.5 15.7 18.0 26.0 34.0
13.5 - 18.0 26.0 34.0
35.6ºF (2.0ºC)
34.0 kBtu/h
69.8ºF (21.0ºC)
16.3 kBtu/h
73.4ºF (23.0ºC)
17.7 kBtu/h
328 ft
Model Model Model
015 018 024
17.0 20.0 27.0
36
40.0
-
-
-
-
-
-
-
-
-
40.0
40.0
17
Model Model Model Model
027 030 036 048
30.0 34.0 40.0 54.0
(kBtu/h)
Model
054
60.0