Wiring Diagrams - Bosch BVA 2.0 Series Installation Instructions Manual

2 2 | Bosch IDS BVA 2.0

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 Passive Dehumidifi cation Function and/OR Electric
Heat). For thermostat wiring please refer to the Owner's Manual of the
thermostat.
Support 3H and 2C thermostat
W/E
Y2
Y
R
G
C
O/B
H/DH
TH E RM O S TAT
Note: Any time the electric heat
elements are active, the indoor fan
will run in high stage.
Figure 17
Control Wiring For HP Systems
Data subject to change
Dh B C G R
INDOOR UNIT
D h wiring is optional and requires a thermostat with a humidistat. Dh
functions as Passive Dehumidifi cation and will downstage the indoor
fan to fi rst stage. System will operate according to normal sequence of
operations if Dh wiring is absent.
Y1 Y2 W1 W2 C
OUTDOOR UNIT
Installation Instructions
Y B W
02.2019 | Bosch Thermotechnology Corp.