Mounting and Wiring, From First | White Rodgers 1F78H specification

3 REMOVING OLD THERMOSTAT

CONTINUED FROM FIRST PAGE

ATTENTION! This product does not contain mercury. How- ever, this product may replace a unit which contains mercury.

Do not open mercury cells. If a cell becomes damaged, do not touch any spilled mercury. Wearing non-absorbent gloves, take up the spilled mercury and place into a container which can be sealed. If a cell becomes damaged, the unit should be discarded.

Mercury must not be discarded in household trash. When the unit this product is replacing is to be discarded, place in a suitable container and return to White-Rodgers at 2892 Harrison Street, Batesville, AR 72501-2117 for proper disposal.

4 MOUNTING AND WIRING

!WARNING

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

Do not short out terminals on gas valve or primary control to test. Short or incorrect wiring will damage thermostat and could cause personal injury and/or property damage.

Thermostat installation and all components of the sys- tem shall conform to Class II circuits per the NEC code.

Electric Heat or Single-Stage

Heat Pump Systems

This thermostat is configured from the factory to operate a heat/ cool, fossil fuel (gas, oil, etc.), forced air system. It is configured correctly for any system that DOES NOT require the thermostat to energize the fan on a call for heat. If your system is an electric or heat-pump system that REQUIRES the thermostat to turn on the fan on a call for heat, locate the GAS/ELECTRIC switch (see fig. 1) and switch it to the ELECTRIC position. This will allow the thermostat to energize the fan immediately on a call for heat. If you are unsure if the heating/cooling system requires the thermostat to control the fan, contact a qualified heating and air conditioning service person.

Hydronic (Hot Water or Steam)

Heating Systems

This thermostat is set to operate properly with a forced-air heating system. If you have a hydronic heating system (a system that heats with hot water or steam), you must set the thermostat to operate properly with your system by changing the first option in the configuration menu to SL (see Configuration Menu, page 5).

!CAUTION

Take care when securing and routing wires so they do not short to adjacent terminals or rear of thermostat. Personal injury and/or property damage may occur.

TERMINAL CROSS REFERENCE CHART

New Thermostat	Other Manufacturers’
Terminal Designation	Terminal Designation
RH	4	RH	M	*
RH	4	RH	M	R
RC	R	R	V	-
G	G	G	F	G
W	W	W	H	W
Y	Y	Y	C	Y
C	C	C	X	C

*Factory installed jumper wire between the RH and RC terminals must remain in place.

Attach Thermostat Base to Wall

1.Remove the packing material from the thermostat. Gently pull the cover straight off the base. Forcing or prying on the thermostat will cause damage to the unit. If necessary, move the electric heat switch (see ELECTRIC HEAT SYSTEMS, above).

2.Connect wires beneath terminal screws on base using appro- priate wiring schematic (see figs. 2 through 7).

3.Place base over hole in wall and mark mounting hole locations on wall using base as a template.

4.Move base out of the way. Drill mounting holes.

5.Fasten base loosely to wall, as shown in fig. 1, using two mounting screws. Place a level against bottom of base, adjust until level, and then tighten screws. (Leveling is for appear- ance only and will not affect thermostat operation.) If you are using existing mounting holes, or if holes drilled are too large and do not allow you to tighten base snugly, use plastic screw anchors to secure subbase.

6.Push excess wire into wall and plug hole with a fire-resistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation.

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1F78H specifications

The White Rodgers 1F78H is an advanced, user-friendly thermostat designed to enhance home heating and cooling systems. As a product of White Rodgers, a trusted name in HVAC controls, the 1F78H boasts a range of features and technologies aimed at providing efficiency, convenience, and reliability.

One of the standout features of the White Rodgers 1F78H is its intuitive interface. It incorporates a large, easy-to-read LCD display that clearly shows the current temperature and settings, making it simple for users to monitor and adjust their home environment. The backlit screen ensures visibility even in low-light conditions, contributing to its user-friendly design.

The 1F78H is equipped with a 7-day programmable schedule, allowing homeowners to set different temperatures for different days of the week. This level of customization enables users to optimize their energy usage based on their specific daily routines, ultimately leading to potential savings on energy bills. The flexibility of programming multiple events each day makes it an ideal choice for busy households.

In terms of technology, the White Rodgers 1F78H features smart recovery and adaptive intelligent recovery functions. These technologies allow the thermostat to learn from user patterns, ensuring that the home reaches the desired temperature by the scheduled time without excessive energy consumption. This adaptive approach is beneficial for maintaining comfort while minimizing unnecessary heating or cooling.

Another significant characteristic of the 1F78H is its compatibility with multi-stage heating and cooling systems. Whether users have a conventional furnace, heat pump, or central air conditioning system, the 1F78H can effectively manage their HVAC setup, offering enhanced control over indoor climates.

The thermostat also comes with an auto-changeover feature, automatically switching between heating and cooling modes based on the ambient temperature, ensuring consistent comfort year-round. The low battery indicator and easy battery replacement are additional thoughtful features that enhance the user experience.

Overall, the White Rodgers 1F78H thermostat combines advanced technologies with user-friendly design, making it an excellent choice for homeowners seeking efficiency and comfort. Its programmable features, compatibility with various HVAC systems, and intelligent recovery technology set it apart in the market, ensuring that it meets the diverse needs of modern households. With its practicality and reliability, the White Rodgers 1F78H is well-suited for anyone aiming to optimize their indoor climate control.