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The system is not reaching setpoint, or has loss of performance. What should I check?
•
The humidifier cassettes are blocked or damaged. Check for damaged cassette(s) and replace if required.
•
The humidifier cassettes are incorrectly fitted. Check the humidifier has been fitted correctly by referring to
the
HE2
assembly guide.
•
Insufficient water is being supplied to the matrix. Check the rotation of the module pump. Check the water
supply pressure. Check the water distribution spray bars are not blocked with scale.
•
Incorrect AHU air flow. Check the AHU airflow to ensure it is within the specification.
There is scale built up on the surface of the matrix. Why?
The process of evaporation leads to a build up of dissolved and salts in the reservoir. An excess concentration
of minerals may result in scaling on the humidifier cassettes.
•
Check the proximity of the heating coil and ensure that there is a minimum of 600mm clearance.
•
Check the supply water quality and the parameters of the “dilution cycle”, especially the interval and dura-
tion settings, see “Step 4 Programming the controller’.
•
The water flow to the headers has reduced and wash over of humidifier cassettes is insufficient. Check the
flow restrictors located after the pump in the water manifold are not blocked.
•
Check the drain pipe-work is not blocked and operation of the drain valve.
•
Note: A build up of 'dirt' on the air on side may indicate air filtration problems.
Содержание HE2
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