AC Services
Downtown Dubai
Chilled-Water FCU Actuator Replacement & Humidity Diagnostics in Downtown Dubai
Independent diagnostic inspection and repair for a residential apartment in Downtown Dubai experiencing severe 70%–90% indoor humidity following third-party duct cleaning. Diagnosed failing IMI TA-Slider 160 actuator and stuck 2-way modulating chilled water valve failing to regulate chilled water flow. Replaced actuator, recalibrated 0-10V control signal from digital thermostat, flushed valve assembly, and restored optimal 22°C temperature with balanced 48% relative humidity.
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79+ Dubai Communities
Villas, apartments & offices
Technical Diagnostic & Field Execution Scope
Reported Problem:
Apartment humidity escalated to 70 - 90%+ immediately following deep coil cleaning, with indoor temperature stuck at 23°C despite thermostat settings, creating musty odors and condensation on diffusers.
Executed Scope:
Deep thermal imaging diagnostics, chilled water Delta-T and flow measurement, diagnostic actuator disassembly, replacement of faulty IMI TA-Slider 160 modulating actuator, recalibration of digital thermostat 0-10V signal, chilled water strainer inspection, and post-repair humidity profiling over 48 hours.
Equipment & Materials:
OEM IMI Hydronic TA-Slider 160 proportional actuator, 2-way brass modulating valve internals, thermal paste, high-precision calibrated digital hygrometer probes.
Dispatch & Duration:
4 Hours
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Carried out in full compliance with Dubai Municipality, Civil Defense, and developer NOC community regulations.
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