Johnson Controls 340968-XIM-A-0108 installation manual Start-Up

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340968-XIM-A-0108

2.Pressure Switch (PS) - If the draft motor should fail, the pressure switch prevents the ignition controls and gas valves from being energized.

3.Flame Sensor - The flame sensor and controls are located per Proper Flame Adjustment, Figure 12. If an ignition control fails to detect a signal from the flame sen- sor indicating the pilot flame is properly ignited, then the main gas valve will not open.

4.Rollout Switch (RS) - This switch is located in the burner vestibule. In the event of a sustained main burner flame rollout, it shuts off the ignition control and closes the main gas valve.

NOTE: The manual reset Rollout Switch (RS) must be reset before allowing furnace operation.

5.Auxiliary Limit Switch (ALS) - This control is located inside the heat exchanger compartment and is set to open at 160°F. It is a manual reset switch. If ALS trips, then the primary limit (LS) has not functioned correctly. Replace the primary limit LS.

TABLE 11: IGNITION CONTROL BOARD FLASH CODES

Flash Code

Description

 

 

Heart Beat

Normal Operation

 

 

2 Flashes

Pressure switch open with inducer on

 

 

3 Flashes

Pressure switch closed with inducer off

 

 

4 Flashes

Not Used

 

 

5 Flashes

Lockout from too many flame losses

 

 

6 Flashes

High temperature switch open

 

 

7 Flashes

Rollout switch open

 

 

8 Flashes

Flame present with gas off

 

 

9 Flashes

Gas valve stuck OFF or ON

 

 

10 Flashes

Flame sense circuit failure

 

 

COOLING

When the thermostat calls for COOL, the thermostat termi- nals G and Y are energized signaling the compressor and outdoor fan to run.

With a call for Y, the circulating fan is energized at cooling speed.

When the thermostat is satisfied, terminals G and Y are de- energized, de-energizing the compressor and outdoor fan.

After a cool fan off delay timing of 30 seconds the circulating fan is de-energized.

CIRCULATING FAN

When the thermostat calls for FAN, the thermostat terminal G is energized signaling the circulating fan to run at the cool speed.

If a call for COOL occurs, the circulating fan continues to run at the cool speed.

If a call for HEAT occurs, the circulating fan switches to heat speed after a 30 second delay.

When the thermostat ends the call for FAN, the thermostat terminal G is de-energized, de-energizing the circulating fan.

START-UP

PRE-START CHECK LIST

Complete the following checks before starting the unit.

1.Check the type of gas being supplied. Be sure that it is the same as listed on the unit nameplate.

2.Make sure that the vent outlet air hoods has been prop- erly installed.

OPERATING INSTRUCTIONS

1.STOP! Read the information on the unit safety label.

2.Set the thermostat to the OFF position.

3.Turn off all electrical power to the unit.

4.DO NOT try to light the burners by hand. This appliance is equipped with an ignition device which automatically lights the burners.

5.Remove the access panel.

6.Turn the gas valve switch to the OFF position.

7.Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow B in the information on the unit safety label. If you don't smell gas, go to the next step.

8.Turn the gas valve switch to the ON position.

9.Replace the control access panel.

10.Turn on all electric power to the unit.

11.Set the thermostat to the desired setting.

12.If the unit will not operate, follow the instructions To Turn Off Gas To Appliance and call your service technician or gas supplier.

TO TURN OFF GAS TO UNIT

1.Set the thermostat to the OFF position.

Johnson Controls Unitary Products

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Contents Export Affinity SeriesTable of Contents Renewal Parts GeneralApprovals InspectionLocation InstallationLimitations Unit Application DataFilters Unit Weights and Center of GravityDuct Work Roof CurbService Access Power and Control WiringThermostat PROPANE1 LP GAS Application Data Natural GAS Application DataGAS Connection Natural GAS Pipe Sizing CHART1Propane LP GAS Pipe Sizing CHART1 GAS PipingFlue Vent Outlet AIR Hood Flue Vent HoodElectrical Data Physical DataUnit Minimum CLEARANCES1 Unit Dimensions FrontUnit Dimensions Front & Bottom Heating Sequence of OperationPost Purge START-UP Manifold GAS Pressure Adjustment POST-START Check List GASPilot Instructions Checking GAS Input Adjustment of Temperature RiseChecking Supply AIR CFM Gase Rate Cubic Feet PER HOUR1DNA Coil Delta P vs Airflow Superheat Charging Table for DNA024 Superheat Charging Table for DNA030Superheat Charging Table for DNA036 Superheat Charging Table for DNA042 Superheat Charging Table for DNA048Superheat Charging Table for DNA060 XIM-A-0108 See Figure Typical Wiring Diagram NotesJohnson Controls Unitary Products York Drive Norman, OK

340968-XIM-A-0108 specifications

Johnson Controls 340968-XIM-A-0108 is a sophisticated component designed for advanced building management and automation systems. This device is engineered to enhance the performance and efficiency of HVAC (Heating, Ventilation, and Air Conditioning) systems, contributing significantly to energy conservation and optimal climate control in commercial and industrial environments.

One of the main features of the Johnson Controls 340968-XIM-A-0108 is its robust compatibility with various building management systems. This component integrates seamlessly with existing systems, allowing for quick deployment and ease of use. The flexibility of this device supports multiple communication protocols, making it a versatile choice for systems upgrades or replacements.

Another standout characteristic of the 340968-XIM-A-0108 is its advanced sensing technologies. This device is equipped with high-precision sensors that monitor temperature, humidity, and air quality, providing real-time data to the building management system. The ability to collect accurate environmental data enables facility managers to make informed decisions that enhance comfort and efficiency.

Energy efficiency is a key focus of the Johnson Controls 340968-XIM-A-0108. The device incorporates intelligent algorithms that optimize HVAC operations, significantly reducing energy consumption. By analyzing usage patterns and adjusting settings accordingly, it helps facilities decrease operational costs while maintaining ideal indoor conditions.

In addition to its operational efficiency, the Johnson Controls 340968-XIM-A-0108 features a user-friendly interface that simplifies monitoring and management. The intuitive design allows operators to easily access system data and make adjustments as necessary without requiring extensive technical knowledge. This feature enhances the overall user experience and promotes efficient building management.

Safety and reliability are also prioritized in the design of the 340968-XIM-A-0108. Built with durable materials and rigorous testing standards, it ensures long-term operation under various conditions. Furthermore, the device supports multiple fail-safes and alarms, providing peace of mind to facility managers regarding system performance and safety.

In conclusion, the Johnson Controls 340968-XIM-A-0108 stands out in the building automation market due to its compatibility, sensing technologies, energy efficiency, user-friendly interface, and reliable performance. These features make it an essential component for optimizing HVAC operations and ensuring sustainable building management practices.
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