Download Alarko HARMONY - D Technical data

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• Reassemble the flue hood taking care that the rear lip of the hood is
correctly located under the top lip formed on the top of the rear combustion chamber wall.
• Replace the air deflector, fan and air pressure switch in reverse order.
• Check the air pressure switch sensing pipes for damage and replace
as required taking care to preserve the correct connection. (The pipe
coming from outside air should be plugged to the switch P1 inlet; the
pipe coming from fan should be plugged to the switch P2 inlet. )
• Remove the screw on the frontal face of the pump to access the
pump shaft and rotate the shaft with a screwdriver to check for any
blockage. Clean any dirt and replace the screw.
• Replace the combustion room front panel, in hermetic models hermetic room front panel, and front casing panel in reverse order. Do
not forget to screw the two front panel-retaining catches at the top RH
and LH sides of the boiler.
• Check the operation of the pressure relief valve as described in
“Commissioning” section.
• Check that the system is at the original (cold) design pressure. If
necessary, re-pressurize the system.
• Check the airside pressure of the expansion vessel and pump air to
increase it up to 1,2 bar.
• On completion of the service work and reassembly of the appliance,
check for gas soundness and the correct operation of the appliance as described “Commissioning” section. Reset the controls to the
users’ requirements.
• At final, adjust the boiler according to the customer’s desire.