Fig. 25 Ð Flexible Duct Used with 90-Degree Bend

Step 4 Ð Determine Controller Location Ð The ®nal step in the terminal selection and layout process is to decide where the controllers will be placed.

The temperature control zones in the building will be de- termined by the ®nal partition layout. Before the ®nal par- tition layout has been determined, you must install enough controllers to meet job requirement; the controllers can then be relocated when the tenant layout is ®nished.

One of the main features of Moduline controls is that con- troller locations can be changed quickly and easily at any time.

Another main feature of Moduline controls is that more than one unit can be controlled from a single thermostat. In large interior zones the ``master'' unit (the one with the ther- mostat) can be hooked up with control tubing to control sev- eral ``slaves''. Table 13 shows the maximum number of units that can be controlled by one controller.

Table 13 Ð Maximum Number of Units in an

Air Series on One Controller

 

PLENUM

NUMBER OF UNITS ON ONE CONTROLLER

 

SIZE (in.)

 

 

 

 

 

MODEL

FIRST UNIT

Single

 

Units in Air Series

 

IN AIR

 

 

 

 

 

SERIES*

Unit

2

3

4

5

 

 

 

5 x 7²

X

Ð

Ð

Ð

Ð

 

 

 

 

 

 

 

37HS1

7 x 7

X

X

X

X

Ð

9 x 9

X

X

X

X

X

 

 

11 x 11

X

X

X

X

X

 

7 x 7

X

Ð

Ð

Ð

Ð

37HS2

9 x 9

X

X

X

X

Ð

 

11 x 11

X

X

X

X

Ð

 

9 x 9

X

Ð

Ð

Ð

Ð

37HS4

11 x 11

X

X

X

X

Ð

 

13 x 13

X

X

X

X

Ð

 

 

 

 

 

 

 

*See Tables 6-8 for recommended combinations of units in air series.

²The 37HS1 unit wit h 5 x 7 size plenum is available with blank end only; mul- tiple units of this size would not be used on one control.

NOTE: The conditions stated in Table 9 must be included in evaluations for selecting the number of units in an air series.

GUIDELINES FOR CONTROLLER LOCATION

1.A master unit is mounted in the ceiling so that the air intake is on the end of the unit opposite the end with the control block and controller. (Fig. 26.)

2.A slave unit can receive air from either end of the unit. Either end can be the inlet, assuming the inlet collar is the same size as the connecting unit. At the same time, it is good practice to place the ``control'' end of a slave unit downstream as shown in Fig. 26. Should the slave unit be later converted to a master unit, the unit would be in its correct con®guration for control installation.

3.The volume controller for a single unit should be located on the end of the unit opposite the inlet end. (Fig. 27.)

Fig. 26 Ð Air Intake on Master Unit

37

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Carrier 37HS Flexible Duct Used with 90-Degree Bend, Maximum Number of Units in an Air Series on One Controller
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37HS specifications

The Carrier 37HS is a cutting-edge heating, ventilation, and air conditioning (HVAC) solution designed to deliver exceptional performance and energy efficiency for residential and commercial applications. This unit is particularly favored for its advanced features and reliable operation, making it a popular choice among homeowners and building managers alike.

One of the standout characteristics of the Carrier 37HS is its high Seasonal Energy Efficiency Ratio (SEER), which indicates its ability to provide effective cooling while minimizing energy consumption. This makes it not only cost-effective but also an environmentally-friendly choice, helping to reduce the overall carbon footprint. The unit is equipped with state-of-the-art inverter technology, which allows it to adjust its cooling capacity to match the current demand, thus enhancing comfort while optimizing energy use.

The Carrier 37HS incorporates a high-efficiency scroll compressor that operates quietly and efficiently. This technology enhances the unit's reliability and longer service life while ensuring minimal noise levels during operation, making it suitable for residential settings where tranquility is paramount.

A significant feature of the 37HS is its variable-speed fan system, which enables gradual adjustments in airflow to maintain a consistent and comfortable indoor environment. This not only contributes to enhanced comfort but also reduces wear and tear on the system, further extending its longevity.

Moreover, the Carrier 37HS is designed with advanced air filtration capabilities, utilizing multi-stage filters that capture airborne particles, allergens, and pollutants. This results in improved indoor air quality, making it an ideal choice for those with allergies or respiratory issues.

The unit also boasts user-friendly smart controls, allowing homeowners to monitor and adjust settings remotely via a smartphone app. This feature adds convenience and assists in energy management, ensuring that users can optimize their HVAC system even when they are away from home.

In summary, the Carrier 37HS stands out for its exceptional energy efficiency, quiet operation, advanced technology, superior air filtration, and modern smart controls. These features collectively make it a prime solution for those seeking a reliable HVAC system that delivers both comfort and savings, while also contributing positively to environmental sustainability. Whether for a residential setting or a commercial establishment, the Carrier 37HS is engineered to meet a variety of climate control needs with excellence.
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