White Rodgers 829A-845 specifications Diagram for Boiler with Tankless Domestic Coil

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WIRING CONT.

DIAGRAM FOR BOILER WITH TANKLESS DOMESTIC COIL

 

 

24 VAC

Fig. 5a & 6a Diagram for

 

 

GAS VALVE

 

HIGH LIMIT

Gas-Fired System

 

 

 

 

 

 

TRANS.

 

 

TYPE 668 OIL

 

 

TYPE 668 OIL

 

 

BURNER CONTROL

BURNER CONTROL

 

 

 

 

 

THERMOSTAT

 

(LINE VOLTAGE)

 

 

THERMOSTAT

 

(LINE VOLTAGE)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

X

 

 

 

 

 

 

 

 

 

 

 

 

 

IGNITION

 

HOT

LINE

 

 

IGNITION

 

HOT

LINE

N

 

 

 

 

 

TRANS.

 

 

 

TRANS.

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T

T

 

X

X

 

 

 

T

T

 

X

X

BURNER

 

 

BURNER

 

1

2

 

1

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MOTOR

 

 

 

 

 

 

MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

3

 

4

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

CIRCULATOR

 

5

 

 

 

 

CIRCULATOR

 

 

 

 

 

 

MOTOR

 

 

 

6

 

 

MOTOR

 

 

 

6

 

 

 

 

 

 

 

 

FIELD

 

 

 

 

 

 

 

FIELD

 

 

 

 

 

 

INSTALLED

 

 

 

 

 

 

INSTALLED

 

 

HIGH

LOW

CIRCULATOR

JUMPERS

 

 

HIGH

TYPE

LOW

TYPE 11B05

JUMPERS

 

 

 

 

 

 

 

 

CONTROL

LIMIT

CONTROL

 

 

 

 

LIMIT

11B30

LIMIT

CIRCULATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

 

 

 

 

 

 

Fig. 5 Diagram for System using High Limit-Low Limit control and Circulator control.

Fig. 6 Diagram for System using High Limit control and Low Limit-Circulator control.

The low limit control maintains domestic hot water at desired temperature year-round.

When the thermostat calls for heat, the burner starts. The circulator also starts if boiler temperature is above setting of circulator control.

If excessive boiler temperature causes high limit to open,

the circulator continues to run but the burner shuts down until the high limit recloses.

When low boiler temperature causes the circulator control to open, burner stays on but the circulator stops until the circulator control recloses. When thermostat is satisfied, the circulator stops. The burner also shuts down if boiler temperature is above setting of low limit control.

DIAGRAM FOR MULTIZONE HYDRONIC HEATING SYSTEM

THERMOSTAT

THERMOSTATZONE 1

ZONE 2

 

 

 

T

 

 

 

T

T T

 

 

ZC

1

 

 

 

 

2

 

ZR

 

 

 

3

 

 

 

JUMPER

4

 

B1

 

 

 

 

 

 

 

*CIRCULATOR

B2

5

6

ZONE 2

 

 

 

C1

 

 

 

 

 

 

C2

 

 

 

1

Fig. 7

 

 

2

 

 

 

TO ADDITIONAL 829A-845 RELAYS

FOR OTHER ZONES

TO BURNER

TO CIRCULATOR ZONE 1

HOT

LINE

N

*Terminal No. 4 or No. 6 may go to zone 2,

The other terminal then goes to ZR.

3

Image 3
Contents Description PrecautionsSpecifications RelayWiring Diagram for Boiler Without Domestic CoilDiagram for Boiler with Domestic Coil with Storage Tank Diagram for Multizone Hydronic Heating System Diagram for Boiler with Tankless Domestic CoilPrincipe DE Fonctionnement RelaisPrécautions SpécificationsSchéma Pour UNE Chaudière Sans Serpentin Domestique CâblageCavalier CÂBLAGEsuite

829A-845 specifications

The White Rodgers 829A-845 is a highly regarded multi-stage programmable thermostat designed for residential heating and cooling systems. This model stands out for its advanced features and user-friendly interfaces, making it a popular choice among homeowners seeking efficient climate control.

One of the main features of the 829A-845 is its programmable capabilities. Homeowners can take advantage of a 7-day programming schedule, which allows tailored temperature settings for different days of the week. This flexibility ensures that the system can adapt to varying occupancy patterns, providing comfort when needed while saving energy during unoccupied periods. Users can set up to four distinct temperature changes per day, optimizing both comfort and efficiency.

The thermostat is equipped with an intuitive digital display that simplifies operation. The large screen provides easy-to-read temperature readings and programming options, ensuring that users can navigate settings without hassle. Additionally, the backlit display allows for visibility in low-light conditions, enhancing usability.

The White Rodgers 829A-845 employs advanced technologies such as Adaptive Recovery, which helps the system achieve the desired temperature by pre-conditioning the space before the scheduled time. This feature ensures that rooms reach their set temperature at the programmed times, promoting energy savings while maintaining comfort.

For compatibility, the thermostat supports a wide range of HVAC systems, including gas, oil, and electric systems, as well as heat pumps and conventional air conditioners. This versatility makes it suitable for various home setups. The device also includes a system changeover feature, enabling easy switching between heating and cooling modes as seasonal needs change.

Built with a user-friendly interface, the White Rodgers 829A-845 requires minimal technical knowledge for installation and operation. Standard installation procedures make it accessible for most DIY enthusiasts, while its robust design ensures reliability and longevity over time.

Energy efficiency is a key characteristic of the 829A-845, as it serves to minimize energy consumption while providing optimal comfort. Its programmable nature allows users to implement energy-saving settings that align best with their unique lifestyles. With a combination of advanced features, ease of use, and compatibility with a broad spectrum of systems, the White Rodgers 829A-845 proves to be a solid investment for any homeowner looking to upgrade their heating and cooling controls.