363857-YUM-A-0208

INPUT

The correct heat capacity of the furnace is regulated by the main burner orifices and the gas pressure. The proper ori- fices for natural gas are furnished but the gas pressure regu- lator must be adjusted by the installer or gas company service person.

OPERATING INSTRUCTIONS

TO SHUT DOWN THE FURNACE:

HEAT EXCHANGER TUBE

GAS

SUPPLY

PIPE

BURNER

BURNER FLAME

BURNER BRACKET

(BLUE ONLY)

IGNITOR

 

FIGURE 2 - TYPICAL FLAME APPEARANCE

1.Close the main gas shutoff valve(s).

2.Turn off the electric power supply.

TO LIGHT THE FURNACE:

1.Do not attempt to light manually.

2.Open the main gas shutoff valve(s).

3.Turn on the electric power supply.

4.Initiate a call for heat.

5.If the return air temperature is below the set point of the controller, the ventor fans will operate. After an adequate purge time, the intermittent ignition device will light the burners. The burners will extinguish and relight automati- cally upon the demand of the controller.

VENT SAFETY SYSTEM

EXHAUST VENT OUTLET

VENT FLUE ASSY.

COMBUSTION AIR INLET

SHIPPING LABELS (REMOVE SHIPPING LABELS PRIOR TO VENT INSTALLATION)

HEAT SECTION DOOR

Each gas furnace module is equipped with an automatic reset high temperature limit and rollout switch. In the unlikely event of a sustained main burner flame rollout, the switch will shut off the flow of gas by closing the main gas valve. The ignition module will also be disabled, preventing the flow of gas to the valve. The rollout switch for each module is located inside the gas heat section access door on the heat shield of each module. Flame rollout can be caused by blockage of the power vent system or improper gas pressure adjustment. If this occurs the furnace will not operate properly, gas supply to the furnace should be shut off and no attempt should be made to place the furnace in operation. The system should be inspected by a qualified service person. Refer to Figure 3 for a typical installation of vent hoods.

The ignition modules are designed such that if the furnace fails to ignite after 3 trials for ignition after a call for heat the flow of gas will be shut off and the ignition module will lock out for one hour. Then the modules will retry ignition and repeat cycle until ignition occurs, or call for heat is satisfied or power to unit is removed. If the furnace does not light after several tries, a service man should be called to determine the cause of the problem.

FIGURE 3 - FLUE VENT ASSEMBLY

This furnace is equipped with a blocked vented shut-off sys- tem (air proving switch). The purpose of the switch is to prove that there is combustion air being drawn through the heat section. The ignition control will not operate if this switch is not made in the pre-purge time of the vent assembly. In the event that the furnace fails to operate due to the pressure switch, a qualified service agency should be contacted.

Determine that external vent is in place (field installed) and clear and free of obstructions.

FILTER CHANNEL

PERIMETER FRAME

 

FILTERS

EXTERNAL

 

UPRIGHT

EXTERNAL

 

UPRIGHT

FILTER

 

BRACKET

FILTERS

FILTER CHANNEL

BASE RAIL

FIGURE 4 - FILTER ACCESS

Johnson Controls Unitary Products

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York 363857-YUM-A-0208 manual Input, Operating Instructions
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363857-YUM-A-0208 specifications

York 363857-YUM-A-0208 is a cutting-edge variable refrigerant flow (VRF) system designed to offer efficient heating and cooling solutions for commercial and residential spaces. This advanced HVAC system combines innovative technologies with user-friendly features, making it an ideal choice for those looking to optimize energy consumption while ensuring maximum comfort.

One of the key features of the York 363857-YUM-A-0208 is its ability to provide precise temperature control. The system utilizes advanced inverter technology that allows the compressor to adjust its speed dynamically. This results in a more stable indoor climate and reduces energy waste, as the system only works as hard as necessary to maintain the desired temperature. As a result, users experience greater comfort and lower energy bills.

The York VRF system employs a multi-zone design, allowing multiple indoor units to be connected to a single outdoor unit. This flexibility enables the cooling and heating of different areas within a building independently. Whether it's a commercial space with varying temperature requirements or a multi-story residential building, the York system can cater to diverse needs.

In terms of installation, the York 363857-YUM-A-0208 is engineered for straightforward setup and integration. Its compact design minimizes the space required for installation, making it an excellent fit for urban environments where available real estate is often limited. Additionally, the system utilizes eco-friendly refrigerants that contribute to lower greenhouse gas emissions.

The unit is equipped with state-of-the-art smart technology features that allow users to monitor and control the HVAC system remotely. Through a user-friendly mobile app or web interface, users can adjust settings, schedule operations, and even receive maintenance alerts, enhancing convenience and system longevity.

Moreover, the York 363857-YUM-A-0208 boasts a robust build quality, designed to withstand the rigors of continuous operation. It incorporates advanced sound-dampening technology to minimize operational noise, making it suitable for both quiet residential areas and bustling commercial environments.

In summary, the York 363857-YUM-A-0208 stands out in the HVAC market for its energy efficiency, flexibility, and state-of-the-art technology. It is an excellent choice for anyone seeking to enhance indoor comfort while minimizing energy consumption and environmental impact.
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