Introduction | 5Heat Pump Controller
8733819577 (2019/02)Heat Pump Controller Subject to change without prior notice
Bosch EasyStart App
The Bosch EasyStart app is a digital interface that
allows access to information from the HPC making
commissioning, configuring, and troubleshooting
easier. This application is available in the Google
Play Store, the Apple App Store, as well as the
Bosch Pro HVAC website (
www.boschprohvac.com).
Search for “Bosch EasyStart” in the appropriate
store for your device to download and launch the
app. Once launched, navigate through the legal
information, and then the user guide displays,
explaining how to connect the App and the heat
pump, as well as how to explore the features of the
Bosch EasyStart app.
The Bosch EasyStart app will only work on the
following devices: Android tablets with Android 4.0
operating system or higher, Apple iPads with iOS 8
or higher, and Windows 7.0 or higher laptops/PCs.
Features
Thermostat (24VAC Rated) Digital Inputs
• Fan call (G) signal
• Reversing valve (O) signal
• Compressor Stage One (Y1) signal
• Compressor Stage Two (Y2) signal
• Electric heat Stage One (W1) signal
• Electric heat Stage Two (W2) signal
• Electric heat Emergency (W2/EM) signal
• Dehumidification call (H) signal
Analog Inputs
The following sensors are 10 KΩ @ 77°F
thermistors:
• Freeze Coax Sensor (FZC)
• Freeze Evaporator Sensor (FZE)
• Discharge Air Temperature (DAT)
• Return Air Temperature (RAT)
• Entering Water Temperature (EWT)
• Leaving Water Temperature (LWT)
• Discharge Refrigerant Temperature (DRT)
• Domestic Water Temperature (DWT)
Digital Outputs (Rated 24VAC)
• Compressor 1st step control (CC1)
• Compressor 2nd step control (CC2)
• Reversing valve control (RV)
• Auxiliary Output1 Aux Heat control (AUX1)
• Auxiliary Output2 Aux Heat control (AUX2)
• Alarm purposes dry contact normally open (NO)
(Pulse or Constant) (ALM)
Digital Outputs (Rated 208/230 VAC)
• Loop valve/pump control (5 Amp Max)
• Heat recovery pump control (3 Amp Max)
Blower Control Output
PWM 24VDC 80Hz
Service Communications (COMM) Ports (RS-485)
J1 WiFi
Visual Status LED Indicators
• Power status indication
• Alarm status indication
• Controller heartbeat indication
• Thermostat demand indication
• RS-485 RX/TX indication
Voltage Protection
• Surge and transient protection circuitry
• Brownout protection mode
Safeties Monitoring
• High Pressure Switch (HPS)
• Low Pressure Switch (LPS)
• Monitoring of multiple sensors
Certification
ETL 101071399CRT-011
Field Updates
The HPC software can be updated in the field via the
Bosch EasyStart app.
Specifications
Power
24 VAC ± 25%, 50-60 Hz, 2 VA of standby power
consumption (single class II 75 VA or 100 VA option
available).
Physical Description
Printed circuit board and plastic standoffs
Environmental Operating Range
-40°F to 176°F (-40°C to 80°C); 10% to 90% relative
humidity, non-condensing. All controls are conformal
coated for environmental protection.
Weight
0.54 lbs. (0.25 Kg)
Overall Dimensions
• 7.25" (width) by 5.06" (height) by 3" (recommended
panel depth)
• 184mm (width) by 129mm (height) by 76mm
(recommended panel depth)
For more information refer to the website list in
the Bosch EasyStart app IOM.
For Type II (10 KΩ@ 77°F) thermistor
temperature curve, refer to Fig. 12.
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