Bosch IDS BOVA15 Installation Instructions Manual page 20

Split system heat pump
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Installation Instructions
3.
Stabilize the system.
After starting the system in cooling mode, short press "FORCE" button,
and " " symbol should appear. System may take 10 minutes to ramp up.
Operate the system for a minimum of twenty (20) minutes.
After a twenty (20) minute stabilization period operating at 100%
capacity (i.e. once the compressor reaches the frequency shown in Table
6), maintain continuous operation while adjusting refrigerant charge.
After adjusting, operate system for a minimum of fi ve (5) minutes for
system to stabilize, otherwise repeat step 3.
Compressor Frequency in Force Mode in Cooling
ODU Capacity
2TON
Frequency (HZ)
46
Table 6
20 MIN.
Figure 35
4.
Calculate superheat value (According to Table 7)
Measured Suction Line Temp = ________ºF
Measured Suction Line Pressure = _______ PSIG
Calculate superheat value = ________ºF
  F or indoor unit with adjustable TXV, set subcooling and adjust superheat
via adjustable TXV according to Table 9. For indoor unit with non-
adjustable TXV, check the superheat and set correct subcooling
according to superheat, refer to Table 9.
5.
Calculate subcooling value (According to Table 8)
Measured Liquid Line Temp. = ________ºF
Measured Liquid Line Pressure = _______ PSIG
Calculate subcooling value = ________ºF
Figure 36
2 0 |
3TON
4TON
5TON
66
54
60
Insulation
If calculated subcooling value is lower than the design subcooling value
(Table 9), please add refrigerant. Repeat steps 3 through 5.
If the superheat is out of range, refer to Troubleshooting section of this
IOM.
Suction
Temp
6
8
10
(°F)
40
105
101
97
42
109
105
101
44
114
109
105
46
118
114
109
48
123
118
114
50
128
123
118
52
133
128
123
54
138
133
128
56
143
138
133
58
148
143
138
60
153
148
143
62
159
153
148
64
164
159
153
66
170
164
159
68
176
170
164
70
182
176
170
72
188
182
176
Table 7
R-410A Refrigerant chart - Final Superheat
Liquid
Temp
6
7
(°F)
55
173
176
60
188
191
65
204
208
70
221
225
75
239
243
80
259
262
85
279
283
90
300
304
95
322
327
100
346
351
105
370
376
110
397
402
115
424
430
120
453
459
125
483
489
Table 8
R-410A Refrigerant chart - Final Subcooling
Bosch IDS BOVA15 Split System Heat Pump - BTC 761701317 A (02.2022)
Final Superheat (°F)
12
14
16
18
20
Suction Gauge Pressure (PSI)
93
89
86
82
78
97
93
89
86
82
101
97
93
89
86
105
101
97
93
89
109
105
101
97
93
114
109
105
101
97
118
114
109
105
101
123
118
114
109
105
128
123
118
114
109
133
128
123
118
114
138
133
128
123
118
143
138
133
128
123
148
143
138
133
128
153
148
143
138
133
159
153
148
143
138
164
159
153
148
143
170
164
159
153
148
Final Subcooling (°F)
8
9
10
11
12
Liquid Gauge Pressure (PSI)
179
182
185
188
191
195
198
201
204
208
211
215
218
221
225
229
232
236
239
243
247
251
255
259
262
266
270
275
279
283
287
291
295
300
304
309
313
318
322
327
331
336
341
346
351
355
360
365
370
376
381
386
391
397
402
407
413
418
424
430
435
441
447
453
459
465
471
477
483
489
469
502
508
515
521
22
75
78
82
86
89
93
97
101
105
109
114
118
123
128
133
138
143
13
195
211
229
247
266
287
309
331
355
381
407
435
465
496
528

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