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Details essential safety guidelines, hazard symbols, and critical warnings for installation and operation.
Explains the electric hydronic block, its operational theory, and key features.
Enumerates the various functionalities and features of the boiler's control system.
Specifies the required minimum distances from the boiler to combustible materials.
Guidance on circulating system design, including flow rates and temperature rise for different boiler sizes.
Instructions for connecting supply and return piping, including low water cutoff and backflow prevention.
Details on the boiler's pre-wiring, voltage compatibility, and circuit breaker sizing.
Guidelines for field wiring, including wire types, strip length, and termination torque.
Instructions for thermostat placement and connecting pumps/thermostats to the control board.
Identifies and explains the function of each part of the AT Boiler Controller interface.
Guide to setting comfort heating, domestic hot water, and differential temperatures.
Explanation of various display codes indicating boiler status, modes, and temperature settings.
Lists common fault codes, their causes, and required actions for troubleshooting.
Procedures for first-time boiler startup and operating dual temperature zones.
Details the boiler's heating sequence, element staging, and temperature regulation.
Information on connecting and utilizing Load Management (LMC) and Flow Sensor (FLO) inputs.
Explanation of Low Water Cutoff (LWCO) input and the pump exercising function.
Comprehensive explanations for fault codes related to relays, sensors, power, and control hardware.
Steps for entering and using the installer test mode for system verification and diagnostics.
Procedure for filling the heating system, purging air, and initial boiler activation.
Steps to identify causes of noise and air in the hydronic system.
Step-by-step instructions for safely replacing a heating element, including precautions.
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