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General| Brand | Powrmatic |
|---|---|
| Model | HEM-SL Series |
| Category | Control Unit |
| Language | English |
Preliminary checks before lighting the heater(s) regarding electrical supply, outlets, and thermostat settings.
Steps for switching on electrical supply, operating the limit reset switch, and understanding startup sequences.
Procedure for short-term and long-term shutdown of the air heater, including electrical supply disconnection.
Details on standard unit operation, high/low/modulating units, and overheat thermostat function.
Requirements for maintaining efficient, reliable, and safe operation of the heater through annual servicing.
Legal requirement for gas appliances to be installed, adjusted, and serviced by qualified persons.
Ensuring replacement items are fitted, adjusted, and set according to instructions for safety.
Diagrams and measurements for HEM-NVx unit dimensions, including A, B, C, and D for various models.
Diagrams and measurements for HEM-SL unit dimensions, including A, B, C, and D for various models.
Technical data on injector sizes, burner pressures, and gas rates for HEM-NVx models on Natural Gas.
Technical data on injector sizes, burner pressures, and gas rates for HEM-SL models on Natural Gas.
Technical data for HEM-NVx models using Propane G31, including injector sizes and burner pressures.
Technical data for HEM-SL models using Propane G31, including injector sizes and burner pressures.
Detailed specs for HEM-NVx: input/output ratings for High Fire, Low Fire, and Min Air Flow.
Detailed specs for HEM-SL: input/output ratings for High Fire, Low Fire, and Min Air Flow.
Specs for HEM-NVx: power consumption (VA) and weights (module, packaging, total).
Specs for HEM-SL: power consumption (VA) and weights (module, packaging, total).
List of referenced standards and documents for installation, including Gas Safety, Building, and Electrical Regulations.
Requirements for external wiring, isolation, and connection methods for the 230V, 1ph, 50Hz supply.
Guidelines for gas supply, service pipes, meters, and installation pipes, including pressure requirements.
Ventilation requirements for Type B installations in heated spaces and plant rooms, covering air change rates.
Ventilation requirements for Type C installations in heated spaces and plant rooms, with ducted air.
Requirements for burner/controls enclosure air leakage rates for Type C12 or C32 flued systems.
Ventilation free area requirements for HEM-NVX units for Type B22 and Type C12/C32 installations.
Ventilation free area requirements for HEM-SL units for Type B22 and Type C12/C32 installations.
Procedure for checking the module upon despatch, confirming order details and compatibility with site supplies.
Available module types for use in additional casings, internal, or external weatherproof housings.
Guidelines for safe handling, lifting, and fitting modules into air handling units or duct sections.
Requirements for connecting combustion air inlets and flue outlets to HEM units, ensuring correct termination.
Requirements for electrical connections, earthing, and wiring diagrams, to be performed by qualified personnel.
Information on module airflow direction, fan interlock, minimum/maximum airflows, and fan over-run.
Guidelines for Powrmatic supplied flue systems, including maximum length, bends, joints, and terminal positioning.
Requirements for condensate drainage, including external traps, local drain points, and protection from freezing.
Identification of internal and control compartment components for single burner units.
Identification of internal and control compartment components for dual burner units.
Warnings and guidelines for electrical connections, including earthing, polarity, and cable sizing.
Wiring terminal locations for single/dual burners operating on On/Off and High-Low modes.
Wiring diagram for HEM single burner units with ON/OFF burner operation, showing component connections.
Checks for electrical safety, including isolator, fuse size, earthing, polarity, wiring, and fan interlock.
Inspection and testing for soundness and purging of the gas installation according to IGE/UP/1 or IGE/UP/2A.
Preliminary checks: electrical supply OFF, outlets open, controls calling for heat, winter operation.
Procedure for lighting the air heater, including electrical supply, ignition sequence, and burner startup.
Procedure for shutting down the unit by setting external controls to OFF and switching off electrical supply.
Procedure for checking and adjusting burner gas pressures for High/Low and Modulating units before dispatch.
Steps to check and adjust burner gas pressure for standard On/Off units using a pressure gauge.
Procedure for adjusting high fire and low fire pressures on the High/Low regulator, including max/min settings.
Information on the Modulating Interface Board (MIB) and its function in interfacing control signals with the regulator.
Testing all gas control assembly joints for soundness using leak detection fluid after gas rate checks.
Notes on user instructions supplied with the module for the end customer and their relationship to P2/P3 settings.
General guidelines for annual maintenance by qualified personnel, including commissioning and testing after service.
Steps for removing the main burner assembly, including disconnecting electricals, unions, and securing screws.
Procedure for inspecting ignition and rectification electrodes, checking spark gap and probe positioning.
Procedure for disconnecting and removing the exhaust fan assembly for servicing or replacement.
Procedures for replacing faulty components like the multifunctional control, burners, electrodes, and thermostats.
List of essential replacement parts including gas valves, electrodes, burners, thermostats, and control boxes.
List of governor heads, modulation drivers, and relays, including their usage and part numbers.
List of pressure switches, including their usage and part numbers.
Replacement kit for single HEM-NVX or HEM-SL units, including part number and compatibility.
Replacement kit for dual HEM-NVX or HEM-SL units, including part number and compatibility.
Ecodesign data for HEM NVx: heat capacity, input, minimum capacity, and useful efficiencies.
Ecodesign data for HEM NVx: power consumption, NOx emissions, envelope loss factor, and emission efficiency.
Ecodesign data for HEM SL: heat capacity, input, minimum capacity, and useful efficiencies.
Ecodesign data for HEM SL: power consumption, NOx emissions, envelope loss factor, and emission efficiency.
Flueing and ventilation notes for single external modules, covering combustion air intake and flue exit points.
Flueing and ventilation notes for multiple external modules, covering combustion air intake and flue exit points.
Notes for single module internal (non-plant room) installations using flue-only mode, BS6230 compliance.
Notes for multiple module internal (non-plant room) installations using flue-only mode, BS6230 compliance.
Notes for single module internal room-sealed installations, BS6230 compliance, and approved flue usage.
Notes for multiple module internal room-sealed installations, BS6230 compliance, and approved flue usage.
Notes for single module internal plant room (flue only) installations, BS6230 compliance, and ducted air.
Notes for multiple module internal plant room (flue only) installations, BS6230 compliance, and ducted air.
Notes for single module internal plant room (room sealed) installations, BS6230 compliance, and ducted air.
Notes for multiple module internal plant room (room sealed) installations, BS6230 compliance, and ducted air.
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