Bosch EHP 6-11 LW User Manual

43
FOR THE INSTALLER
The heat pump and collector hose in general
Transporting the heat pump
The heat pump should always be transported and stored in an upright position. Otherwise the suspension fi ttings inside
the compressor can be damaged. If the heat pump must be tilted during entry to the installation site, this should be done
for as short a time as possible. The outer cover plates should be removed to avoid damage, if the heat pump is moved
without using the supplied pallet.
The heat pump must not be stored at temperatures below -10ºC.
Positioning the heat pump
It is important that the heat pump stands on a fl at surface as it contains sensitive parts. Adjust the rubber feet so the heat
pump does not lean.
The temperature surrounding the heat pump must be between 0ºC and 35ºC.
The installer should take sound propagation into consideration when positioning the heat pump.
Make sure there is a fl oor drain in the room where the heat pump is installed. The fl oor drain ensures any water is easily
transported away if leakage should occur.
Maximum working temperatures
The heat pump can work at a maximum return water temperature of approximately 57ºC. If the temperature rises above
this value the heat pump will stop for reasons of safety.
The maximum outgoing temperature to the heating system is around 65°C. However, even higher temperature can be
attained with the help of the electric cassette.
Minimum working temperatures
The heat pump is from factory preset to minimum temperature of heat transfer fl uid (collector) ±0°C inlet and -2°C outlet.
If anti-freeze liquid with a freezing point of -15°C is used, the heat pump can operate at outdoor temperatures down to -5°C.
The preset values must be changed during commissioning. At this level the heating factor is (depending on model) appr.
3.3 - 3.5 at 35°C heat transfer fl uid out and 2.4 - 2.6 at 50°C heat transfer fl uid out.
Fit the particle fi lter
The task of the particle fi lter is to fi lter out dirt before it can enter the heat pump. Accordingly, the supplied particle fi lters
should always be fi tted on the incoming pipes on both the hot and cold sides. The fi lters should be fi tted as close to the
heat pump as possible and placed horizontally.
Two particle fi lters are supplied with the LWM model. These are to be fi tted on the outside of the heat pump. On the LW
model the particle fi lter for the hot side is already fi tted inside the heat pump. The supplied fi lter is to be fi tted on the cold
side, outside of the heat pump.
The heat pump and collector hose in general

Bosch EHP 6-11 LW Specifications

General

Brand	Bosch
Model	EHP 6-11 LW
Category	Heat Pump
Language	English

Summary

Important Information for Users

Component Parts of the Heat Pump (LWM Model)

Component Parts of the Heat Pump (LW Model)

Compressor

Control Panel

Control Unit

Control Unit Functionality

Heat Pump Control Methods

Control with Outdoor Sensor

Control with Outdoor and Room Sensor

Control Panel and Indicators

Controls and Status Lamps

Navigating the Control Panel

Using Control Panel Buttons

Basic Functions (Customer Level 1)

Accessing frequently used settings for users.

Setting the Heating

Understanding the Heat Curve

Adjusting the Heat Curve

Modifying Curve Slope

How to increase or decrease heating by adjusting the curve slope.

Cold Weather Heating Adjustment

Procedure for adjusting heat curve in cold conditions.

Fine-Tuning the Heat Curve

Adjusting for Warm Weather

Setting Room Temperature

Heating and Hot Water Settings

Extra Functions (Customer Level 2)

Advanced Temperature Settings

Fine-Tuning the Heat Curve

Hot Water and Timer Settings

Timer Control Settings

Setting heating schedules based on time and day.

Timer Control Details

Operation Times and Clock Settings

Setting Time and Date

Correctly setting the internal clock and date for proper function.

Alarms and Factory Reset

Alarm Logging

Accessing and viewing logged alarms and their status.

Maintenance Overview

Maintenance Procedures

Cleaning the Particle Filter

Troubleshooting Guide

Responding to Alarms

How to interpret and acknowledge alarm messages on the display.

Fuses, Reset Buttons, and Alarms

Heat Pump Fuses and Reset Buttons

Location and function of fuses and reset buttons for troubleshooting.

Comprehensive Alarm List

A list of all possible alarms and their corresponding causes.

Compressor and Pump Faults

Motor Cut-Out Compressor (MB1)

Troubleshooting steps for compressor motor cut-out alarms.

Motor Cut-Out HTF Pump (MB2)

Troubleshooting steps for HTF pump motor cut-out alarms.

Temperature and Pressure Faults

Compressor Temperature Alarm (GT6)

Addressing alarms related to compressor overheating.

Low Pressure Switch Alarm (LP)

Troubleshooting low pressure switch alarms.

Pressure and Electric Cassette Faults

High Pressure Switch Alarm (HP)

Troubleshooting high pressure switch alarms.

Electric Cassette Alarms (EK)

Addressing alarms related to the electric cassette.

Electrical and Fluid Flow Faults

Power Failure Alarms

Actions for power failure and incorrect phase alarms.

High Heat Transfer Fluid Delta Alarm

Troubleshooting alarms for high temperature difference in heat transfer fluid.

Heat Pump Flow and Temperature Faults

High Return Temperature Alarm (GT9)

Addressing alarms for excessively high return water temperature.

Heat Transfer Fluid Out Max Alarm (GT8)

Troubleshooting alarms for maximum heat transfer fluid output temperature.

Sensor and Fluid Limit Faults

Sensor Faults

General troubleshooting for defective sensors.

HTF Fluid Limit Alarms (GT10/GT11)

Addressing alarms for low heat transfer fluid temperature limits.

For the Installer

Installer Important Information

Installation Checklist

A step-by-step guide for installers to follow during installation.

Dimensions and Plumbing Connections

Preparations Before Connection

Electrical and Heating System Connections

Connecting to Heating System

General advice on connecting to the heating system, including flushing.

Heating System Connection Without Bypass

LWM Model Heating System Connection

LW Model Heating System Connection

System Filling Procedures

Filling Heat Transfer Fluid

Connecting to Power Supply

External Connections

Power Supply Connections (3-Phase/1-Phase)

Details for connecting 3-phase and 1-phase power supplies.

Sensors and Mixing Valve Connections

Wiring for external sensors and mixing valves.

Installer and Service Menu (I/S)

Accessing the Installer Menu

How to enter the service menu by holding the menu button.

Navigating Installer Menus

Example of using the control panel for installer settings.

Commissioning the Heat Pump

Starting the Heat Pump

Initial startup procedure and checks.

Post-Startup Checks

Essential checks for pressure, levels, and temperature differences post-startup.

Commissioning Settings

Temperature Settings Adjustments

Commissioning Service Functions

Advanced Commissioning Options

Additional Heat and Reset Settings

Return to Factory Settings

Resetting settings to factory defaults for installer or user levels.

Manual Test Runs and Checks

Manual Test Run

Key Checks After Startup

Essential checks for pressure, levels, and temperature differences post-startup.

Technical Information

Factory Settings Overview

Technical Data (Three-Phase Models)

Technical Data (Single-Phase Models)