Wiring Diagrams - Bosch BVA 15 Series Installation Instructions Manual

Installation Instructions

11 Wiring Diagrams

WARNING: ELECTRICAL SHOCK
Disconnect all power before servicing or installing this unit.

Multiple power sources may be present. Failure to do so may
cause property damage, personal injury or death.
DANGER: ELECTRICAL SHOCK
This unit must be properly grounded and protected by a

circuit breaker or fuse.
WARNING: ELECTRICAL SHOCK
These units must be wired and installed in accordance with all

National and Local Safety Codes.
 To avoid electrical shock, please ensure:
— The heat pump is properly grounded
— The main power plug to the heat pump has been joined with the
ground wiring (DO NOT ALTER THIS).
Do not strain the power wiring.

Dashed lines in the following thermostat wiring diagrams refer to optional
wiring (wiring for Electric Heat). For thermostat wiring please refer to the
Owner's Manual of the thermostat.
Wiring for 3H and 1C thermostat
W2
W/E
Y
R
G
C
O/B
TH ERM OSTAT
Note: For single-stage auxiliary
heating (supported by 2H
thermostat), jump W1 and W2.
Figure 18 Thermostat wiring diagram for BOVB 18 with BVA 15
Bosch Thermotechnology Corp. | 10.2020
Electric wiring gauge for H/P systems
Line
Gauge
Table 9
W1
C G R W2
BVA 15 INDOOR UNIT
Model(Btu/h)
Phase
Power
Voltage/frequency
Input Current Fuse Indoor unit (A)
Line Quantity
Indoor Unit Power
Line
Line Diameter (AWG)
Line Quantity
Outdoor Unit Power
Line
Line Diameter (AWG)
Line Quantity
Outdoor -Indoor
Signal Line
Line Diameter (AWG)
Line Quantity
Thermostat Signal
Line
Line Diameter (AWG)
Y
C
OUTDOOR UNIT
Bosch IDS BVA 15 | 21
24 36 48 60
Single
208/230VAC, 60Hz
15A 15A 15A 15A
3 3 3 3
14 14 14 14
3 3 3 3
14 12 10 10
4 4 4 4
18 18 18 18
5 5 5 5
18 18 18 18
W
B
Data subject to change