Wiring

INSTALLATION

If the thermostat is used with unit heaters, the following			CEILING
suggestions may help. (See Fig. 2).			POST
1.	Position “A” is good if it is sufficiently close to the unit		POST
1.
	heater so that the return air to the heater flows over the		UNIT
	thermostat.		UNIT
2.	Position “B” is good if it is not necessary to make		B
2.	Position “B” is good if it is not necessary to make
	frequent adjustments of the dial setting.
3.	Position “C” is all right if it is sufficiently far from the	D	C
	heater that air flowing over the thermostat is not much		RETURN AIR
	above the average room temperature.
4.	In general, position “D” is not advisable because the		FLOOR
	post may prevent air from circulating over the thermo-		FLOOR
	post may prevent air from circulating over the thermo-

stat.	Figure 2

PARTITION

WALL OR POST

DIRECTLY BEHIND

UNIT

All wiring should be done in accordance with local and national electrical codes and ordinances.

SUPPLY

TYPE	TYPE	TYPE
11B09	11B09	11B09

RETURN

TO LINE SWITCH

AND POWER SUPPLY

ROOM

THERMOSTAT

Figure 3

Diagram showing a single room thermostat controlling several steam or hot water unit heaters. Any number of unit heaters can be operated from one thermostat pro- vided that the sum of the motor locked rotor currents or the sum of the full load currents does not exceed the electrical rating of the thermostat. The Type 11B09 Reverse-acting Surface Hot Water Control is used to prevent operation of the fans when the steam is off or when the water temperature is too low for proper heating.

The diagram at the right shows a heavy duty line voltage room thermostat controlling an electric heater.

ROOM

THERMOSTAT

ELECTRIC HEATER

TO LINE SWITCH AND POWER SUPPLY

Figure 3A

TYPE 152 specifications

The White Rodgers TYPE 152 is a notable product in the landscape of heating control systems, particularly known for its reliability and efficiency in residential applications. Designed for versatility, this programmable thermostat is engineered to provide homeowners with precise temperature control while optimizing energy consumption.

One of the main features of the TYPE 152 is its advanced programming capabilities. Users can create customized temperature schedules that accommodate their daily routines, ensuring comfort when needed and energy savings when the home is unoccupied. With the ability to program different temperature settings for weekdays and weekends, the TYPE 152 minimizes energy waste and reduces heating costs.

The thermostat operates using a user-friendly interface, making it accessible for individuals of all technical expertise. Its clear display provides easy-to-read information about current and set temperatures, program schedules, and system statuses. This simplicity makes it easy to adjust settings manually when necessary.

In terms of technology, the TYPE 152 incorporates a robust microprocessor that enhances its functionality. This microprocessor enables more accurate temperature readings and quicker response times to changes in the environment, ensuring that the heating system operates efficiently. The thermostat is also compatible with a wide range of heating systems, including gas, oil, and electric furnaces, making it a flexible option for various homes.

Another key characteristic of the White Rodgers TYPE 152 is its energy-saving features. By using a precise temperature control algorithm, the system minimizes fluctuations in indoor temperature, which can lead to increased energy use. This consistency not only enhances comfort but also significantly contributes to energy conservation.

The TYPE 152 is designed with durability in mind. Its high-quality construction ensures longevity, and it can withstand the wear and tear commonly associated with household devices. This resilience makes it a worthy investment for homeowners looking for a solution that will last over time.

In summary, the White Rodgers TYPE 152 represents a blend of technology, usability, and efficiency. With its programmable functionalities, user-friendly interface, compatibility with multiple heating systems, and energy-saving features, it serves as a comprehensive solution for maintaining a comfortable home while promoting responsible energy use. Its durable design further solidifies its reputation as a reliable choice for homeowners.