Extending Capillary, Installation, Wiring

CONVERTIBLE CONTROLS CONT.

NOTE

To convert from Vertical to Horizontal model, remove Knockout Plug and Plate. Remove Hex Nut (inside con- trol) and swing capillary upward into back knockout. Place Knockout Plate beneath Hex Nut on back of control and tighten Hex Nut (inside control). If bottom knockout is not used for wiring, insert Knockout Plug.

HEX NUT
MOUNTING STEM	KNOCKOUT PLUG
MOUNTING STEM
CAPILLARY	KNOCKOUT PLATE
	KNOCKOUT PLATE
BULB

Convertible Control converted to Vertical Model.

EXTENDING CAPILLARY

Some controls have excess stored capillary which may be extended for use with an extended shank well. Use reason- able care when straightening and forming the capillary.

With the capillary fully extended, the bulb should slide all the way to the end of the well.

INSTALLATION

If the boiler manufacturer recommends a control location, follow such recommendations. If none is offered, the following information gives suggested locations.

When used for high limit service, the control should be installed in the riser close to the boiler, or in a boiler tapping that is near the top or hottest section of the boiler. If the boiler is also used to heat domestic hot water, make sure that the high limit control is not located in the section of the boiler that contains the heat exchanger or piping for domestic hot water.

When used for low limit or operator service, the control should be located near that section of the boiler that

contains the heat exchanger or piping for domestic hot water.

To remove the well from the control, loosen the set screw in the large nut, then slide the well off to expose the bulb. Screw the well into the proper tapping. Slide the bulb back into the well, making sure that the bulb enters the well as far as it will go and tighten the set screw.

CAUTION

Do not dent or bend the bulb as this will prevent it from fitting into the well properly.

WIRING

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

If the boiler or burner manufacturer recommends a wiring diagram, then follow such recommendations.

If none is offered, these diagrams show suggested cir- cuits.

HIGH

LIMIT

	LINE			THERMOSTAT
	LINE		INTERMITTENT IGNITION
GND	HOT		INTERMITTENT IGNITION
GND	HOT		OIL BURNER CONTROL
			OIL BURNER CONTROL
	FUSED		LIMIT
	LINE		LIMIT		STACK
	LINE		CONTROL		STACK
	SWITCH		CONTROL
	SWITCH
				T T 1 2	3 4
Used as high limit			TRANS
Used as high limit
control with			MOTOR
control with
oil burner control
		DIAPHRAGM
			GAS VALVE
	THERM PILOT TRANS			Used as high limit
	THERM PILOT TRANS			control with
				control with

THERMOSTAT

Used as high limit control with Silent Knight gas valve with plug-in pilot

THERMOSTAT

diaphragm gas valve

SILENT KNIGHT

GAS VALVE

2	AUX	TRANSFORMER
2	3	TO
TH	TR	TO
TH	TR	LINE
1	4	LINE
1	4
		COIL	LIMIT	AUTOMATIC
			CONTROL	AUTOMATIC
		PLUG-IN		PILOT
		PLUG-IN

PILOT	2

TRANSFORMER

LINE

IF AUTOMATIC PILOT IS NOT USED, CONNECT A JUMPER BETWEEN THE PILOT TERMINALS

11B18 specifications

The White Rodgers 11B18 is an advanced thermostat designed for residential heating and cooling systems, known for its reliability, user-friendly interface, and energy efficiency. It's a part of the White Rodgers brand, a subsidiary of Emerson Electric, which has a longstanding reputation in the HVAC industry.

One of the main features of the 11B18 is its digital display, which provides clear visibility of the current temperature settings and allows users to easily navigate through different options. The backlit screen is especially useful during low-light conditions, enhancing usability during the night.

The 11B18 is equipped with a programmable function that allows users to set specific temperature schedules throughout the day. This feature promotes energy savings by allowing homeowners to adjust temperatures based on their daily routines, ensuring that heating and cooling are optimized when needed most. The programmable settings can typically accommodate up to four different temperature changes throughout a single day, enabling customized comfort.

In addition to its programmability, the 11B18 features advanced temperature sensing technology. This ensures that the thermostat accurately measures the ambient temperature, improving overall comfort and efficiency. With a built-in anticipatory feature, the thermostat can also predict when to start heating or cooling, ensuring the set temperature is reached by the desired time.

The compatibility of the White Rodgers 11B18 with various heating and cooling systems is another significant advantage. It can be used with single-stage and multi-stage HVAC systems, making it versatile for many households. This adaptability prevents the need for homeowners to invest in a new system when upgrading their thermostat.

Another characteristic of the 11B18 is its simplicity in installation and operation. Most users can install the thermostat themselves, thanks to the straightforward instructions and standard wiring requirements. Moreover, the intuitive user interface is designed so that even those who are not tech-savvy can set their preferences without difficulty.

Energy-saving features are paramount in modern thermostats, and the White Rodgers 11B18 does not disappoint. It includes an energy-saving mode that helps reduce utility bills by implementing energy-efficient systems. Overall, the White Rodgers 11B18 integrates performance, functionality, and convenience, making it a reliable choice for homeowners seeking an effective thermostat solution.