701379-UIM-C-0712

ADJUSTMENT OF TEMPERATURE RISE

DANGER

The temperature rise, or temperature difference between the return air and the supply (heated) air from the furnace, must be within the range shown on the furnace rating plate and within the application limitations shown in Table 7 “ELECTRICAL AND PERFORMANCE DATA”.

The supply air temperature cannot exceed the “Maximum Supply Air Temperature” specified in these instructions and on the furnace rating plate. Under NO circumstances can the furnace be allowed to operate above the Maximum Supply Air Temperature. Operating the furnace above the Maximum Supply Air Temperature will cause pre- mature heat exchanger failure, high levels of Carbon Monoxide, a fire hazard, personal injury, property damage, and/or death.

After about 5 minutes of operation, determine the furnace temperature rise. Take readings of both the return air and the heated air in the ducts, about six feet (1.83 m) from the furnace where they will not be affected by radiant heat. Increase the blower speed to decrease the temperature rise; decrease the blower speed to increase the rise.

VARIABLE SPEED MOTORS

The variable speed motor must be configured so the blower will provide a sufficient airflow so that the furnace operates with in the temperature rise range on the rating plate and within the application limitations shown in Table 7 in these Instructions.

ADJUSTMENT OF FAN CONTROL SETTINGS

Heating Indoor Fan Off Delay

This furnace is equipped with a time-on/time-off heating fan control. The fan on delay is fixed at 30 seconds. The fan off delay has 4 settings (60, 90, 120 and 180 seconds). The fan off delay is factory set to 120 sec- onds. The fan-off setting must be long enough to adequately cool the furnace, but not so long that cold air is blown into the heated space. The fan-off timing may be adjusted by positioning the jumper on two of the four pins as shown in Figure 41.

BLOWER OFF

HI HEAT DELAY

CONTINUOUS FAN

JUMPER

DELAY JUMPER

SPEED JUMPER

 

 

 

 

 

LAST

 

CFM

STATUS

 

STAGING

SPEED FAN VSHI HI LO LO

NEUTRALS

 

 

 

 

ERROR

180

120

15 10 OFF 60 90

20

LOW VOLTAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TERMINALS

Y1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y Y2

 

 

 

 

 

 

 

 

 

 

 

W W1

 

 

 

 

 

 

 

 

 

 

 

W2

 

 

 

 

 

 

 

 

 

 

HUM

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LINE

 

G

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

XFMR

 

 

BLOWER SPEED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

 

 

JUMPERS

 

 

 

 

 

EAC

 

DHUM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X/L

 

ADJ COOL RELAY HEAT

 

 

 

 

 

 

 

HEAT

 

 

D

D

D

 

 

 

 

 

 

 

YES

 

C

C

C

 

 

 

 

 

 

 

 

B

B

B

 

 

 

 

 

 

 

PUMP

 

A

A

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

DHUM?

 

 

 

 

 

 

 

 

 

JUMPER

HEATPUMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DEHUMIDISTAT

 

 

 

 

 

COOLING

 

 

 

JUMPER

 

 

 

 

 

 

PROFILE JUMPER

 

FIGURE 42: Furnace Control Board

Johnson Controls Unitary Products

33

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Image 33
Johnson Controls TM9V*MP Adjustment of Temperature Rise, Variable Speed Motors, Adjustment of FAN Control Settings

TM9V*MP specifications

Johnson Controls has long been a leader in providing innovative comfort solutions, and their TM9V*MP series of variable speed air handlers is a testament to their commitment to efficiency and performance. These products are designed to optimize heating and cooling in both residential and commercial applications, ensuring superior indoor air quality and comfort year-round.

One of the standout features of the TM9V*MP series is its variable speed technology. Unlike traditional single-speed systems, the TM9V*MP adjusts its airflow according to real-time heating and cooling demands. This not only enhances comfort by maintaining consistent temperatures but also significantly reduces energy consumption. The variable speed motor operates quietly and efficiently, making it ideal for both living environments and workplaces.

In terms of design, the TM9V*MP is engineered for ease of installation and maintenance. It comes in a compact size that allows for flexible positioning within existing ductwork, making retrofits simpler for contractors. Additionally, the modular design allows for easy access to internal components, which facilitates hassle-free servicing and maintenance.

The unit also features a robust filtration system that works in tandem with a range of air quality technologies. This includes optional media filters that capture allergens and particulates, ensuring that the air quality within a space is not only comfortable but also healthy. The integration of advanced technologies, such as integrated Wi-Fi capabilities, provides users with the ability to monitor and adjust settings remotely via smartphones or tablets.

Moreover, the TM9V*MP series is compatible with a wide range of communication protocols, enabling seamless connectivity with smart home systems. This means that users can create customized comfort profiles and take advantage of energy-saving features automatically.

Durability is another key characteristic of the TM9V*MP series. Built with high-quality materials and subjected to rigorous testing, these air handlers are designed to endure even the most demanding conditions while providing reliable performance over time.

In summary, Johnson Controls' TM9V*MP series offers an array of features that cater to modern comfort demands. With its variable speed technology, user-friendly design, air quality enhancements, and strong connectivity options, it stands out as a prime choice for both residential and commercial HVAC applications, setting a high standard for efficiency and indoor comfort.