START-UP

Initial Check

IMPORTANT: Do not attempt to start unit, even mo- mentarily, until the following steps have been com- pleted.

1.Verify unit has been installed per the Installation, Start- Up, and Service Instructions shipped inside the unit.

2.Verify that all auxiliary components (valves, sensors, etc.) have been installed and wired to the PIC control box.

3.Verify that the motor starter and HOA switch have been installed and wired.

NOTE: HOA switch must be in OFF position.

4.Check to be sure area around unit is clear of construc- tion dirt and debris.

5.On VAV units, verify that the static pressure probe and associated piping have been installed.

6.Verify that:

Chilled water valve is in its normal position. Hot water/steam valve is in its normal position. Outside-air damper is closed.

Return-air damper is open.

Inlet guide vanes are closed (VAV units).

7.Set control con®gurations. Units are shipped with ap- plicable controls programmed to the default values shown in Table 16.

8.Set unit set points. Units are shipped with the set point default values shown in Table 17. If a different set point is required, change as shown in the following example:

KEYBOARD

DISPLAY

COMMENTS

ENTRY

RESPONSE

 

 

SETPOINT

System set points

 

OHSP 68.0

Present occupied heat set point

 

 

is 68.0

 

OHSP 59.0

Key in 59 and press ENTR, display

 

 

shows new occupied heat set point

 

 

is 59

 

OCSP 78.0

Present occupied cooling set point

 

 

is 78.0

 

OCSP 70.0

Key in 70 and press ENTR, display

 

 

shows new occupied cooling set

 

 

point is 70

Unit is shipped with the NTFC, Demand Limit, Tem- perature Reset, Optimal Start, Occupied Heating, and Fan Tracking functions disabled. If these functions are desired, refer to Control Operation, Programming Func- tions section beginning on page 81.

9.Check tightness of all electrical connections.

10.Turn on control power by turning the ON/OFF switch located in the PIC control box to ON.

11.Perform Quick Test to make sure controls are operating properly. See the following section.

Quick Test Ð The Quick Test feature allows the service technician to individually test all inputs and outputs of the control system. See Tables 18-22.

The test function operates the Quick Test diagnostic pro- gram. The test subfunctions energize the valves, dampers, and inlet guide vanes (VAV units).

To start Quick Test, set HOA switch to OFF. Verify sup- ply fan stops. Quick Test does not operate if supply fan sta- tus is ON.

A test can be terminated by pressing . Pressing af- ter a test has started advances the system to the next test. Once the next test is displayed you can start the test by

pressing , advance past it by pressing , or back up

by pressing

. The unit remains in Quick Test until

and then are pressed. At that time the unit reverts to automatic control.

If the keyboard is not used for 10 minutes, the display automatically returns to the rotating default display. You

must press and to exit Quick Test and then

press to restart the procedure.

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Carrier 39L specifications Start-Up, Initial Check
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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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