Relay, Description | White Rodgers 829A-845 instruction

WHITE-RODGERS

TYPE 829A-845

RELAY

For Use With Low Voltage Thermostats

INSTALLATION INSTRUCTIONS

Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

DESCRIPTION

Type 829A-845 Relay has double-pole, single-throw switching action.

This relay is especially suitable for use on hot water heating installations having forced circulation. It permits the use of a sensitive low voltage room thermostat to control the operation of both burner and circulator.

It is equally well suited for use on zoned hot water installations where a circulator and low voltage thermostat are used for each zone.

PRECAUTIONS

If in doubt about whether your wiring is millivolt, line, or low voltage, have it inspected by a qualified heating and air conditioning contractor, electrician, or someone famil- iar with basic electricity and wiring.

Do not exceed the specification ratings.

All wiring must conform to local and national electrical codes and ordinances.

This control is a precision instrument, and should be handled carefully. Rough handling or distorting compo- nents could cause the control to malfunction.

CAUTION

To prevent electrical shock and/or equipment damage, disconnect electric power to system, at main fuse or circuit breaker box, until installation is complete.

WARNING

Do not use on circuits exceeding specified voltages. Higher voltages will damage control and could cause shock or fire hazard.

SPECIFICATIONS

ELECTRICAL DATA	Rating: Terminals (3 & 4 and 5 & 6)
Switch Action: Double-Pole,Single-Throw,normallyopen	Total load must not exceed 2000 VA.
Input Voltage: Terminals (1 & 2) 120V.A.C., 60Hz	Motor: 120V.A.C.	10F.L.A.	60L.R.A.
Room Thermostat:	240V.A.C.	6F.L.A.	36L.R.A.
Set adjustable heat anticipator at 0.3 Amps. For fixed	Pilot Duty:50VA @ 24 Volts
anticipation thermostats, use 0.25 to 0.35 Amp. heater.

PRINCIPLE OF OPERATION

The 829A-845 relay is provided with a self-contained transformer with a low voltage secondary output for energizing the relay coil.

Line voltage lines should be connected to the terminals marked “1 & 2” for power to reach the transformer. Closing the thermostat circuit energizes the relay coil which in turn closes the circuits between terminals 3 and 4 and also between 5 and 6.

Opening the thermostat circuit de-energizes the relay coil, breaking the circuits between terminals 3 and 4 and also between 5 and 6.

		T	T
		RELAY
		COIL
	2	4	6
	N
DOTTED LINES	LINE
DOTTED LINES
INDICATE FIELD	HOT
WIRING	HOT
WIRING	1	3	5
	1	3	5
Fig. 1		TO LINE AND LOAD	TO LINE AND LOAD
		TO LINE AND LOAD	TO LINE AND LOAD
		OR PILOT DUTY	OR PILOT DUTY

	WHITE-RODGERS DIVISION	PART NO. 37-2689D
	EMERSON ELECTRIC CO.	PART NO. 37-2689D
	9797 REAVIS RD., ST. LOUIS, MO. 63123	Replaces 37-2689-3
	(314) 577-1300, FAX (314) 577-1517	Replaces 37-2689-3
	(314) 577-1300, FAX (314) 577-1517	Printed in U.S.A.
		Printed in U.S.A.

9999 HWY. 48, MARKHAM, ONT. L3P 3J3
R (905) 475-4653, FAX (905) 475-4625	9512

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.