Mitsubishi Electric CITY MULTI PURY-HP72TNU-A Data Book page 113

12. PIPING DESIGN
* When connecting the CMB-P**-NU-G1, CMB-P**-NU-GA1, CMB-P**-NU-HA1, CMB-P**-NU-GB1, or CMB-P**-NU-HB1 to a given system, add the
amount of refrigerant as indicated in the table below.
BC controller Amount (kg/unit)
G1/GA1-type 0
HA1-type 2.0
GB1/HB1-type 1.0
• When the piping length from the outdoor unit to the farthest indoor unit is longer than 30.5 m (100 ft)
Amount of High-pressure pipe
additional = ø28.58 total length
charge (kg) × 0.33 (kg/m)
Liquid pipe ø19.05
+ total length
× 0.26 (kg/m)
Main or Sub
BC controller
J-type
+
JA-type
KA-type
KB-type
* When connecting PEFY-P06NMAU-E**, PEFY-P24NMAU-E**, or PEFY-P36NMAU-E**, add 0.55 kg [20 oz] of refrigerant per indoor unit.
* When connecting PLFY-EP06NEMU-E**, PLFY-EP18NEMU-E**, or PLFY-EP36NEMU-E**, add 0.67 kg [24 oz] of refrigerant per indoor unit.
* High-pressure pipe: Main high-pressure pipe between outdoor unit and BC controller
* Liquid pipe: Liquid pipe between BC controller and indoor unit or between main BC controller and sub BC controller
* When connecting the CMB-P**-NU-G1, CMB-P**-NU-GA1, CMB-P**-NU-HA1, CMB-P**-NU-GB1, or CMB-P**-NU-HB1 to a given system, add the
amount of refrigerant as indicated in the table below.
BC controller Amount (kg/unit)
G1/GA1-type 0
HA1-type 2.0
GB1/HB1-type 1.0
Units "ft" and "oz" (In an R2 system)
<Formula>
• When the piping length from the outdoor unit to the farthest indoor unit is 30.5 m (100 ft) or shorter
Amount of High-pressure pipe
additional = ø1-1/8 total length
charge (oz) × 3.88 (oz/ft)
Liquid pipe ø3/4
+ total length
× 3.13 (oz/ft)
Main or Sub
BC controller
J-type
JA-type
+
KA-type
KB-type
* In the case all connected indoor unit models are Case 1 or Case 2, do NOT add the refrigerant listed in table <B>.
Instead, add the following amount of refrigerant.
Case 1: PLFY-EP06/18/36NEMU-E**
→ Add 24 oz per PLFY-EP06/18/36NEMU-E**.
Case 2: PEFY-P06/24/36NMAU-E**
→ Add 20 oz per PEFY-P06/24/36NMAU-E**.
* High-pressure pipe: Main high-pressure pipe between outdoor unit and BC controller
* Liquid pipe: Liquid pipe between BC controller and indoor unit or between main BC controller and sub BC controller
MEES19K180
Total capacity of outdoor units
HP72
HP96
+
HP120
HP144-HP240
High-pressure pipe High-pressure pipe
+ ø22.2 total length + ø19.05 total length
× 0.21 (kg/m) × 0.14 (kg/m)
Liquid pipe ø15.88 Liquid pipe ø12.7
+ total length + total length
× 0.18 (kg/m) × 0.11 (kg/m)
Amount Total capacity of connected
(kg/unit) indoor units
1.5 27 or below
3.0 28 to 54
4.7
55 to 126
0.4 127 to 144
145 to 180
+
181 to 234
235 to 273
274 to 307
308 to 342
343 to 411
412 to 450
451 or above
Total capacity of outdoor units
HP72
HP96
+
HP120
HP144-HP240
High-pressure pipe High-pressure pipe
+ ø7/8 total length + ø3/4 total length
× 2.48 (oz/ft) × 1.73 (oz/ft)
Liquid pipe ø5/8 Liquid pipe ø1/2
+ total length + total length
× 2.16 (oz/ft) × 1.30 (oz/ft)
Amount Total capacity of connected
(oz/unit) indoor units
53 27 or below
106 28 to 54
+
166 55 to 126
15 127 to 144
145 to 180
181 to 234
235 to 273
274 to 307
308 to 342
343 to 411
412 to 450
451 or above
Amount (To be added for G1/GA1/HA1-type BC controller)
3.0 kg
4.5 kg
4.5 kg
6.0 kg
High-puressure pipe
ø15.88 total length
+
× 0.1(kg/m)
Liquid pipe ø9.52 Liquid pipe ø6.35
+ total length + total length
× 0.054 (kg/m) × 0.021 (kg/m)
Amount (kg)
(to be added for
indoor unit)
2.0
2.5
3.0
3.5
4.5
5.0
6.0
8.0
9.0
10.0
12.0
14.0
Amount (To be added for G1/GA1/HA1-type BC controller)
3.0 kg
4.5 kg
4.5 kg
6.0 kg
High-pressure pipe
+ ø5/8 total length
× 1.19 (oz/ft)
Liquid pipe ø3/8 Liquid pipe ø1/4
total length total length
+ +
× 0.65 (oz/ft) × 0.26 (oz/ft)
Amount (oz)
Total capacity of
(to be added for
outdoor units
indoor unit)
71
72
89
+
96
106
120
124
144
159
192
177
240
212
283
318
353
424
494
Hyper Heating Inverter R2-Series
Amount (oz)
53
53
106
89
142
177
Table <B>
111