(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 ø1-1/8
additional charge
=
total length × 3.88 (oz/ft)
(oz)
Liquid pipe ø1/2 total
+
length × 1.30 (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 Ⓑ. Instead, add the following
amount of refrigerant.
Case 1: TPLFYP006/018/036EM14**
→ Add 24 oz per TPLFYP006/018/036EM14**.
Case 2: TPEFYP006/024/036MA14**
→ Add 20 oz per TPEFYP006/024/036MA14**.
・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 ø1-1/8
additional charge
=
total length × 3.54 (oz/ft)
(oz)
Liquid pipe ø1/2 total
+
length × 1.19 (oz/ft)
Main or sub BC controller
+
* When connecting TPLFYP006/018/036EM14**, add 24 oz of refrigerant per indoor unit.
* When connecting TPEFYP006/024/036MA14**, add 20 oz of refrigerant per indoor unit.
<Example>
Outdoor unit 1 model: H120
Outdoor unit 2 model: H120
BC controller (Main) model: TCMBM0108JA11N4
BC controller (Sub) model: TCMBS0104KB11N4 × 4 units
Total capacity of connected indoor units: 206
* Refer to the pipe connection examples in section 9-4 for the pipes marked with the letters below.
A:
ø1-1/8; 131 ft
B:
ø3/8; 32 ft
C:
ø3/8; 16 ft
D:
ø3/8; 16 ft
E:
ø3/8; 16 ft
F:
ø3/8; 16 ft
G: ø3/8; 16 ft
H:
ø3/8; 16 ft
I:
ø3/8; 16 ft
A
: ø3/4; 9 ft
1
A
: ø3/4; 3 ft
2
WT09117X05
High-pressure pipe ø7/8
+
total length × 2.48 (oz/ft)
Liquid pipe ø3/8 total
+
length × 0.65 (oz/ft)
Amount (oz/unit)
connected indoor units
53
106
166
15
+
High-pressure pipe ø7/8
+
total length × 2.26 (oz/ft)
Liquid pipe ø3/8 total
+
length × 0.59 (oz/ft)
Amount (oz/unit)
J-type
53
JA-type
106
KA-type
166
KB-type
15
High-pressure pipe ø3/4
+
total length × 1.73 (oz/ft)
Liquid pipe ø1/4 total
+
length × 0.26 (oz/ft)
Amount (oz)
Total capacity of
(to be added for
indoor unit)
27 or below
71
28 to 54
89
55 to 126
106
127 to 144
124
145 to 180
159
181 to 234
177
235 to 273
212
274 to 307
283
308 to 342
318
343 to 411
353
412 to 450
424
451 or above
494
High-pressure pipe ø3/4
+
total length × 1.51 (oz/ft)
Liquid pipe ø1/4 total
+
length × 0.23 (oz/ft)
Total capacity of connected indoor
units
27 or below
28 to 54
55 to 126
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
GB-28
High-pressure pipe ø5/8
Liquid pipe ø5/8 total
+
+
total length × 1.19 (oz/ft)
length × 2.16 (oz/ft)
Ⓑ
Total capacity of
outdoor units
072
096
120
144
168
+
192
216
240
264
288
312
336
High-pressure pipe ø5/8
Liquid pipe ø5/8 total
+
+
total length × 1.08 (oz/ft)
length × 1.94 (oz/ft)
Amount (oz)
(to be added for indoor unit)
71
89
106
124
159
177
212
283
318
353
424
494
Amount (oz)
53
53
106
89
142
142
159
177
89
53
71
71