Mitsubishi Electric City Multi R2 Series Installation Manual page 40

(2) 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 = ø1-3/8 total length
charge (oz) × 6.24 (oz/ft)
Liquid pipe ø3/4
+ total length
× 3.12 (oz/ft)
Main or sub BC
+
* When connecting PEFY-P50VMHS2-E, add 100 oz of refrigerant per indoor unit.
* When connecting PEFY-P63VMHS2-E, add 116 oz of refrigerant per indoor unit.
* When connecting PEFY-P71VMHS2-E, add 89 oz of refrigerant per indoor unit.
* When connecting PEFY-P80VMHS2-E, add 89 oz of refrigerant per indoor unit.
* When connecting PEFY-P100VMHS2-E, add 89 oz of refrigerant per indoor unit.
* Contact your dealer for the amount of refrigerant to be added when connecting CMB-P**-V-G1, CMB-P**-V-GA1, CMB-P**-V-HA1, CMB-P**-
V-GB1, or CMB-P**-V-HB1.
* When connecting LEV kit (PAC-LV11M-J), additional refrigerant charge may be required. Contact your dealer for details.
・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 = ø1-3/8 total length
charge (oz) × 5.60 (oz/ft)
Liquid pipe ø3/4
+ total length
× 2.80 (oz/ft)
Main or sub BC
+
* When connecting PEFY-P50VMHS2-E, add 100 oz of refrigerant per indoor unit.
* When connecting PEFY-P63VMHS2-E, add 116 oz of refrigerant per indoor unit.
* When connecting PEFY-P71VMHS2-E, add 89 oz of refrigerant per indoor unit.
* When connecting PEFY-P80VMHS2-E, add 89 oz of refrigerant per indoor unit.
* When connecting PEFY-P100VMHS2-E, add 89 oz of refrigerant per indoor unit.
* Contact your dealer for the amount of refrigerant to be added when connecting CMB-P**-V-G1, CMB-P**-V-GA1, CMB-P**-V-HA1, CMB-P**-
V-GB1, or CMB-P**-V-HB1.
* When connecting LEV kit (PAC-LV11M-J), additional refrigerant charge may be required. Contact your dealer for details.
WT08432X01
High-pressure pipe
+ ø1-1/8 total length
× 3.88 (oz/ft)
Liquid pipe ø5/8
+ total length
× 2.16 (oz/ft)
Amount (oz/unit)
controller
J-type 53
JA-type 106
KA-type 166
KB-type 15
High-pressure pipe
+ ø1-1/8 total length
× 3.54 (oz/ft)
Liquid pipe ø5/8
+ total length
× 1.94 (oz/ft)
Amount (oz/unit)
controller
J-type 53
JA-type 106
KA-type 166
KB-type 15
High-pressure pipe
+ ø7/8 total length +
× 2.48 (oz/ft)
Liquid pipe ø1/2
+ total length +
× 1.30 (oz/ft)
Total capacity of connected
indoor units
80 or below
81 to 160
161 to 330
331 to 390
391 to 480
+
481 to 630
631 to 710
711 to 800
801 to 890
891 to 1070
1071 to 1250
1251 or above
High-pressure pipe
+ ø7/8 total length +
× 2.26 (oz/ft)
Liquid pipe ø1/2
+ total length +
× 1.19 (oz/ft)
Total capacity of connected
indoor units
80 or below
81 to 160
161 to 330
331 to 390
391 to 480
+
481 to 630
631 to 710
711 to 800
801 to 890
891 to 1070
1071 to 1250
1251 or above
GB-38
High-pressure pipe High-pressure pipe
ø3/4 total length + ø5/8 total length
× 1.73 (oz/ft) × 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)
(to be added for
indoor unit)
71
89
106
124
159
177
212
283
318
353
424
494
High-pressure pipe High-pressure pipe
ø3/4 total length + ø5/8 total length
× 1.51 (oz/ft) × 1.08 (oz/ft)
Liquid pipe ø3/8 Liquid pipe ø1/4
total length + total length
× 0.59 (oz/ft) × 0.23 (oz/ft)
Amount (oz)
(to be added for
indoor unit)
71
89
106
124
159
177
212
283
318
353
424
494