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General| Brand | SUNFLOWER |
|---|---|
| Model | SR81 |
| Category | Controller |
| Language | English |
Covers wire safety, installation location, power, device compatibility, and specialist operations.
Defines manual content, professional installation requirements, and manufacturer's liability disclaimer.
Manufacturer's disclaimer regarding installation and usage.
Notes on manual accuracy, warning symbols (safety, operation steps, notes).
Describes the controller's buttons and the Human-Machine Interface (HMI) display.
Details power supply, voltage, housing, mounting, and operational features of the controller.
Lists all items included in the SR81 controller package.
Step-by-step instructions for physically attaching the controller's display unit.
Instructions for installing the main controller board onto the wall.
Covers preparing terminal covers before connecting wires.
General notes on connecting wires and IP protection.
Details input/output ports and wiring for 1500W heaters.
Details input/output ports and wiring for 3000W/4000W heaters.
Guidelines for proper sensor cable routing and shielding.
Explains how the controller manages solar circulation based on temperature differences.
Step-by-step guide to setting the controller's clock and date.
Visual representation of the controller's menu hierarchy.
Instructions on how to access and navigate through menus and submenus.
How to check current system values and function statuses.
Description and initial setup for the timing heating feature.
Specifics on timing sections and intelligent heating modes.
Detailed steps for configuring timing heating parameters.
Explains controlling the DHW pump by time and temperature.
Details on time-controlled vs. temperature-controlled DHW pump operation.
Menu structure and setup steps for the DHW circulation function.
Procedure for setting and managing user passwords.
Description and settings for tank heating logic and parameters.
Overview of collector emergency shutdown, cooling, minimum temp, and antifreeze.
Description of tank cooling and heat transfer by radiator.
Configuration for tank cooling and heat transfer functions.
Overview of Timer, Thermostat, and Beeper functions.
Configuration steps for Timer and Thermostat functions.
How to manually adjust relay outputs.
Description and setup for pump blocking protection.
Description and setup for thermal sterilization function.
Description and setup for flow rate monitoring.
How to change temperature units.
Procedure to reset controller parameters.
Instructions on how to set a new password.
How to manually heat and use ECO mode.
Manually trigger DHW pump and controller on/off.
How to activate/deactivate the holiday mode.
How to manually run the circuit pump.
Memory during power failure and screen protection.
General advice, sensor failure diagnosis, and error codes.
Details on the controller's warranty period and exclusions.
Lists and describes optional components like sensors and flow counters.
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