40RU

Chilled Water Coil Freeze Protection - Shut off water supply to unit. Remove side panel of unit and remove vent and drain plugs in top and bottom of coil header. Drain coil and blow out remaining water. Reinstall plugs and side panel.

Alternative freeze protection methods follow:

S Circulate hot water within the water coil’s supply main or supplementary space heating.

S Close off supply lines to unit and open a union or field-supplied drain valve in the return line.

IMPORTANT: Draining from return line will not completely drain water from coils.

S After draining as much water as possible from coils, add sufficient antifreeze to prevent residual water in the coil from freezing.

SAdd a sufficient quantity of non-corrosive antifreeze to the entire system to prevent all water within the system from freezing.

Coil Removal - Remove unit panels and corner posts as required. Disconnect coil connections and remove fastening screws. Remove coil through end or side sections of unit.

Cleaning Cooling Coil - Remove return-air filters. Remove any heavy dirt that may have accumulated on underside of coil. Coil can be cleaned more easily with a stiff brush, vacuum cleaner, or compressed air when coil is dry. If coil is wet or if water is to be used for cleaning, guard against splashing water on electrical components or damaging surrounding area. Clean coil baffles as applicable and check for tight fit to be sure air does not bypass coil.

Cleaning Insulation - The insulation contains an immobilized antimicrobial agent that helps prevent the growth of bacteria and fungi. Clean the inner surface of the insulation according to the separate maintenance instructions shipped with the unit.

Replacing Filters - Filters can be removed and installed from either side of the unit. Install new filters in units that have one fan as follows:

1.Remove the side access panel (retain screws).

2.Remove the filter retainer clip (see Fig. 28).

3.Remove old filters by lifting and tilting them out of the filter track. See Fig. 16 and 29. Use the factory- supplied filter hook to slide filters within reach for re- moval. The filter hook is shipped inside the unit in the filter track

4.Reverse the procedure to install new filters.

!CAUTION

UNIT OPERATION HAZARD

Failure to follow this caution could cause equipment damage.

Do not operate unit without air filters.

FILTER

RETAINER

CLIP

C10703

Fig. 28 - Remove Filter Retainer Clip

C10704

Fig. 29 - Filter Removal/Replacement

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Image 26
Carrier 40RU manual Remove Filter Retainer Clip
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40RU specifications

The Carrier 40RU is a highly regarded solution in the realm of commercial cooling systems, specifically designed for applications requiring reliable, long-lasting climate control. This unit stands out due to its engineering excellence, innovative features, and efficient operation.

One of the primary attributes of the Carrier 40RU is its robust construction. Engineered to withstand varying environmental conditions, this unit is built with high-quality materials that promote durability and longevity. The design incorporates corrosion-resistant finishes, which enhances its resilience, especially in outdoor installations.

The Carrier 40RU is equipped with advanced cooling technologies, including variable speed compressors and innovative coil designs. These technologies contribute to its exceptional energy efficiency, allowing the unit to optimize performance while minimizing energy consumption. The variable speed compressors adjust their output based on the current cooling demand, which not only saves energy but also reduces wear and tear on the equipment.

Additionally, the system features a sophisticated control platform that allows for ease of operation and monitoring. This control system offers numerous settings and modes, enabling users to customize their cooling experience based on specific needs. Integration with smart building systems is also possible, providing even greater flexibility and energy management capabilities.

The 40RU model includes a comprehensive filtration system that enhances indoor air quality by effectively capturing dust, allergens, and other particulates. This feature is essential for commercial spaces where maintaining a clean and healthy environment is paramount.

In terms of performance metrics, the Carrier 40RU offers impressive cooling capacities suitable for various applications, from small offices to large commercial buildings. Its noise levels are also minimized through the application of advanced acoustic insulation, ensuring a comfortable environment for occupants.

Moreover, the Carrier 40RU is designed with ease of maintenance in mind. Regular service points are readily accessible, allowing technicians to perform routine checks and repairs efficiently. This design consideration is crucial for minimizing downtime and ensuring the system operates optimally.

In summary, the Carrier 40RU combines rugged construction, energy-efficient technologies, advanced controls, and superior filtration to deliver an outstanding cooling solution for commercial applications. Its versatility, coupled with robust performance characteristics, makes it a preferred choice among HVAC professionals and building managers alike. Whether for new installations or upgrades, the 40RU ensures reliability and comfort in any environment.
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