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System configuration, settings and control system
SMGB0066 rev.0 - 12/2009
Controller pack
Service Manual
4
4.1. SySTEM ConfIGUrATIon, SETTInGS And ConTrol SySTEM
4.1.1. description
The System Controller is a configurable outdoor-temperature-compensated heating controller.
The System Controller is a part of the Heat Pump Controller Pack and is linked to the other components of the hydronic
control system, such as the wireless Room Unit, RF Receiver, Water Temperature Sensor and Outside Sensor.
The Room Unit is connected to the System Controller via radio signals, enabling simpler installation and offering the end
user a choice to operate the system.
The System Controller operates the heat pump, electric heater or boiler, valves and pumps to ensure optimal operation of
the heating system.
The System Controller has an LCD display with a simple menu structure operated by five buttons, so that it can easily be
configured to many different applications with specific installation settings.
note
When performing any work with this product (installation, mounting, start-up), all instructions given by the
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manufacturer and in particular the safety instructions provided in the installation instructions must be followed.
The System Controller may only be installed and mounted by authorised and suitably trained personnel.
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If the unit is modified in any way, except by the manufacturer, all warranties concerning operation and safety are
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invalidated.
Make sure that local standards and regulations are respected at all times.
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Use only accessory equipment that comes from or has been approved by Honeywell or Hitachi.
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caution
Electrical hazard. Can cause serious injuries or death.
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Disconnect the mains power supply before the installation of the System Controller. Do not reconnect the
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power supply until all installation work is completed.
Before the controller is dismantled, disconnect the main power supply.
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4.1.2. System controller overview
The System Controller is designed for controlling the heat pump in a mono-valent, mono-energetic or bi-valent heating
system. It provides efficient control and reduces energy use while maintaining comfort in the building.
• Modulating control of heat pump.
• Control of an Auxiliary heat source (electric heater or boiler).
• Outside temperature compensated (OTC) control.
• Control of heating circuit pumps/valves and, optionally, domestic hot water storage.
• System frost protection.
The functionality of the System Controller depends on the installed components and the selected configuration. The System
Controller is designed in a way that it can be configured and upgraded to meet many application requirements.