Table 19 Ð Test of Output Signals

 

 

 

KEYBOARD

DISPLAY

COMMENTS/ACTION

ENTRY

RESPONSE

 

 

OUTPUTS

Field testing of outputs. (Set HOA switch to OFF.)

 

HCV %

Press ENTR if unit is equipped with a hot water or steam valve. Otherwise press

 

HCV TEST

Verify that the hot water or steam valve strokes to its 100% position.

 

CCV %

The hot water or steam valve returns to its 0% position. Press ENTR if unit is equipped with a chilled water

 

 

valve. Otherwise press

 

CCV TEST

Verify that the chilled water valve strokes to its 100% position.

 

MIXD %

The chilled water valve returns to its 0% position. Press ENTR if unit is equipped with mixed-air dampers.

 

 

Otherwise press

 

MIXD TEST

Verify that the outdoor-air damper strokes to its 100% position. Proceed with the applicable Constant Volume

 

or Variable Air Volume portion of the test.

 

 

For Constant Volume Units:

 

IGV %

SF X

FAN TEST

EXIT TST TST CMPL

If so equipped, verify that the outdoor-air damper returns to its 0% position. (Set the HOA switch to AUTO.)

Supply fan will be turned ON automatically. If unit is equipped with the Option Module, proceed with the Option Output portion of the test (Table 20). If the unit does not have an Option Module, proceed to the electric heater portion of the test (Table 21). If unit does not have an Option Module or electric heater, proceed as follows:

Test is now complete. The unit is back under normal automatic control.

For Variable Air Volume Units:

IGV %

IGV TEST

SF X

FAN TEST

HIR X HIR TEST

EXIT TST

TST CMPL

If so equipped, verify that the outdoor-air damper returns to its 0% position.

Verify that the IGVs stroke to their 100% position. Close the door of the fan section. Turn the HOA switch to AUTO.

The IGVs return to their 0% position.

The supply fan is turned ON automatically.

The supply fan stops.

Using an ohmmeter across the HIR relay contacts (refer to component arrangement label for location), the reading should be less than 10 ohms. If the unit is equipped with the option module, proceed with the option output portion of the test (Table 20). If unit does not have an option module, proceed to the electric heater portion of the test (Table 21). If unit does not have an option module or electric heater, proceed as follows:

Test is now complete. The unit is back under normal automatic control.

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Carrier 39L specifications Test of Output Signals, For Variable Air Volume Units
Page 105 Page 107

39L specifications

The Carrier 39L is a cutting-edge air conditioning unit designed for both residential and commercial applications, providing exceptional cooling and heating performance. Equipped with advanced technologies, this system ensures optimal climate control while maintaining energy efficiency.

One of the standout features of the Carrier 39L is its inverter technology. This innovation allows the system to adjust its compressor speed based on the ambient temperature, which results in a significant reduction in energy consumption. By operating at varying capacities rather than a fixed output, the 39L can maintain a consistent temperature, enhancing comfort while lowering electricity bills.

The Carrier 39L also includes a high-efficiency air filtration system, designed to capture dust, allergens, and other airborne particles. This not only improves indoor air quality but also promotes a healthier living environment. The filtration system is complemented by anti-bacterial treatment, ensuring that the air circulated within your space is both clean and refreshing.

In terms of design, the Carrier 39L boasts a sleek and compact form factor, making it easy to integrate into various settings, from homes to offices. Its quiet operation is another notable feature, as it minimizes noise levels, allowing occupants to enjoy a serene atmosphere without disruptive sound.

Further enhancing convenience, the Carrier 39L comes equipped with smart connectivity options. Users can control the unit remotely via a smartphone app, making it easy to adjust settings, program schedules, and monitor energy usage from anywhere. This feature not only improves user experience but also supports energy-saving practices.

Durability is also a key characteristic of the Carrier 39L. Constructed with high-quality materials and coated with corrosion-resistant treatments, the unit is built to withstand various environmental conditions. This ensures long-lasting performance and reduces the need for frequent maintenance.

Overall, the Carrier 39L is a versatile, efficient, and user-friendly air conditioning solution. Its blend of advanced technologies, energy-saving capabilities, and robust design makes it an ideal choice for those seeking reliable climate control in their spaces. Whether for residential comfort or commercial necessity, the Carrier 39L stands out as a leader in modern air conditioning.
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