269434-UUM-A-0407

Check for dirt or lint on any surfaces or on components. Do not try to clean any of the surfaces or components. Cleaning of the fur- nace and its components must be done by a qualified service pro- fessional.

If, during the inspection of your furnace, you find any of the following conditions:

Excessive amounts of dust and lint on components.

Damaged or deteriorated components or surfaces.

Leaks or blockage in the vent pipe passages.

Water on any surface inside or outside of the furnace.

Do not operate the furnace, call a certified dealer / servicing contractor to check and / or clean your furnace, or for more information if you have questions about the operation of your furnace.

If all components appear to be in good operating condition, replace the front panels. Turn ON the gas and electrical power supplies to the fur- nace, and set thermostat to the desired temperature.

Air Filters

Dirty filters greatly restrict the flow of air and may cause damage to the moving parts of the furnace. If the filters become clogged the heat exchangers and blower motor could overheat resulting in a potentially dangerous situation. The filters should be checked every 3 months. On new construction, check the filters every week for the first four weeks and every three weeks after that, especially if the indoor fan is running continuously. When replacing the filter(s) you must use filters that are the same size as those recommended in Table 1. Use the following pro- cedure to determine the filter size. Never operate your furnace without a suitable air filter.

1.Measure the furnace width and use that measurement to deter- mine the cabinet width.

A 14-1/2” wide cabinet is a “A” cabinet.

A 17-1/2” wide cabinet is a “B” cabinet.

A 21” wide cabinet is a “C” cabinet.

A 24-1/2” wide cabinet is a “D” cabinet.

2.Locate the cabinet size on Table 1 then determine whether you have a bottom or side return air duct using the following method.

TABLE 1: Recommended Filter Sizes

a.If the return air filter is on the left or right side of the furnace it is a side return

b.If the air filter is on the bottom of the furnace then you have a bottom return.

C.If the air filters are on the bottom and the side of the furnace then you have a bottom and side return. You must replace both air filters. Table 1 will indicate 2 filters by using brackets with the number two (2).

D.If the air filters are on both sides of the furnace then you have a two sided return. You must replace both air filters. Table 1 will indicate 2 filters by using brackets with the number two

(2).

3.After you determine the cabinet size and what return configuration you have, look up the recommended filter size from Table 1.

Replacing Filters

Filters used with this furnace must be installed external to the furnace casing. DO NOT attempt to install filters inside the furnace cabinet.

Some installations may have the air filter in a rack attached to the cas- ing of the furnace or placed in the return air duct. If the filter location or replacement process is not obvious, contact your installer or service technician for assistance. Replace throw away filter(s) with the same size new filter(s). Throw away filter(s) may be replaced with cleanable filter(s) at this time. Cleanable filter(s) may be cleaned as described in the manufacturer instructions or as described below and then re- installed.

Externally Mounted Air Filters

Some installations may have the air filter in a rack attached to the cas- ing of the furnace or placed in the return air duct. You can gain access to the filter by pulling on the door or unscrewing the retaining screw, then slide the filter(s) out of its channel. Replace throw away filter(s) with the same size new filter(s). Throw away filter(s) may be replaced with cleanable filter(s) at this time. Cleanable filter(s) may be cleaned as described in the manufacturer instructions or as described below and then re-installed.

Input/Output

Nominal CFM

Cabinet

Side Return

Bottom Return

BTU/H (kW)

(m3/min)

Size

Filter in. (cm)

Filter in. (cm)

40 (11.7)

1200 (34)

A

16 x 25

(41 x 64)

14 x 25 (36 x 64)

60 (17.6)

1200 (34)

B

16 x 25

(41 x 64)

16 x 25 (41 x 64)

80 (23.4)

1200 (34)

B

16 x 25

(41 x 64)

16 x 25 (41 x 64)

80 (23.4)

2000 (57)

C

16 x 25

(41 x 64)

20 x 25 (51 x 64)

100 (29.3)

2000 (57)

C

16 x 25

(41 x 64)

20 x 25 (51 x 64)

120 (35.1)

2000 (57)

D

(2) 16 x 25

(2) (41 x 64)

22 x 25 (56 x 64)

135 (39.6)

2000 (57)

D

(2) 16 x 25

(2) (41 x 64)

22 x 25 (56 x 64)

NOTES:

1.Air velocity through throwaway type filters may not exceed 300 feet per minute (91.4 m/min). All velocities over this require the use of high velocity filters.

2.Air flows above 1800 CFM require either return from two sides or one side plus bottom.

How to Clean your Filter

High-velocity filters may be cleaned with a vacuum cleaner or washed with a garden hose. Be sure to shake off excess water and allow filter to completely dry before re-installing the filter.

Blower Care

Even with good filters properly in place, blower wheels and motors will become dust laden after long months of operation. The entire blower assembly should be inspected annually. If the motor and wheel are heavily coated with dust, they can be brushed and cleaned with a vac- uum cleaner. If the blower cannot be properly cleaned without removing

it from the furnace, then this service must be performed by a qualified service agency.

The blower can be serviced/removed through the blower access panel on the inside of the furnace. If there is a combustion air pipe installed inside the furnace, it may have to be removed to access the blower access panel. After the combustion air pipe is removed, it is easy to remove the inside blower access panel by removing the screws of the access panel. Blower is now ready to be serviced through the opening.

If the blower has to be removed through the inside blower access panel, then the top and bottom angles will have to be removed to slide the blower out of the furnace.

4

Unitary Products Group

Page 4
Image 4
White Rodgers PS9 Up, FL9s UP, FC9s Up service manual Air Filters, Replacing Filters, Blower Care

FL9s UP, FC9s Up, PS9 Up specifications

White Rodgers has long been synonymous with innovation in the HVAC industry, and its series of thermostats, including the FC9s Up, PS9 Up, and FL9s Up, exemplify this commitment to quality and technology. These programmable thermostats are designed to enhance energy efficiency, comfort, and control for both residential and commercial applications.

The FC9s Up is a standout in the lineup, featuring a user-friendly interface that makes it easy for homeowners to program their heating and cooling schedules. It supports multi-stage heating and cooling systems, allowing for precise temperature control across various zones. Its Smart Set technology enables the thermostat to learn users' habits over time, automatically adjusting to optimize energy use without sacrificing comfort. Furthermore, the FC9s Up is compatible with a range of home automation systems, offering seamless integration for tech-savvy users.

The PS9 Up brings another layer of versatility with its advanced sensor technology. This model is particularly notable for its responsive touch screen and intuitive controls. The PS9 Up is designed to monitor humidity levels, adjusting the operation of HVAC systems accordingly, which not only conserves energy but also enhances indoor air quality. Users can customize settings to align with their lifestyle, ensuring comfort throughout the day and night.

Lastly, the FL9s Up stands out with its robust features tailored for commercial applications. It provides advanced analytics that allow business owners to monitor and manage energy consumption effectively. The FL9s Up’s compatibility with various heating and cooling systems, including geothermal and radiant floor heating, makes it a versatile choice for larger or more complex environments. Moreover, its built-in Wi-Fi capability enables remote access via a smartphone or tablet, allowing users to control their systems from anywhere, ensuring optimal conditions even when they're away.

Together, the FC9s Up, PS9 Up, and FL9s Up represent the evolution of thermostat technology, backed by White Rodgers' decades of experience and commitment to efficiency. Each model offers unique features and capabilities tailored to different needs and environments, ultimately making temperature management more accessible and energy-efficient for users everywhere. Whether for residential or commercial applications, these thermostats set a high standard in the HVAC industry, driving energy savings and enhancing comfort with every use.