Installation Instructions Bosch IDS BOVB 18 | 21
Bosch Thermotechnology Corp. | 10.2020
Data subject to change
13 Start Up
13.1 System Start Up
1. Ensure Sections 7, 8, 9, 10, 11, and 12 have been completed.
2. Set System Thermostat to OFF.
Figure 34
3. Turn on disconnect to apply power to the indoor and outdoor units.
Figure 35
ON
OFF
4. Upon initial unit installation, wait one (1) hour before starting the unit if
compressor crankcase heater is used and the outdoor ambient temperature
is below 70 ºF.
Figure 36
60 MIN.
5. Set system thermostat to ON.
Figure 37
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