White Rodgers Comprehensive Installation Instructions for 1F56N-444 Thermostat

Installation Instructions for:
Horizontal	1F56N-444
Snap-Action
Vertical	1E56N-444
Snap-Action

YOUR THERMOSTAT REPLACES

System	Models
Standard Heating & Cooling Systems –
4 or 5 wires
Standard Heat Only Systems
Standard Central Air Conditioning
Gas or Oil Heat	All Models
Hydronic (Hot Water) Zone Heat – 2 wires
Electric Furnace
Heat Pump (No Aux or Emergency Heat)
Heat Pump (with Aux or Emergency Heat)
Baseboard Electric Heating or Line Voltage	None
(120 or 240 Volt)
Millivolt Heat Only Systems –
Floor or Wall Furnaces	All Models
Hydronic (Hot Water) Zone Heat – 3 wires

3 REMOVING OLD THERMOSTAT (cont’d)

If no heat anticipator/indication is showing, do not be concerned; move on to the next step.

ATTENTION! This product does not contain mercury. However, 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. Refer to www.white-rodg- ers.com for location to send product containing mercury.

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 system shall conform to Class II circuits per the NEC code.

A.Remove base from subbase: Loosen the screws on the base and remove.

B.Mount switching subbase: Use the screws provided to mount the subbase or

1 PREPARATIONS

Assemble tools required: power drill, flat blade screwdriver, wire cutter/stripper, level.

Failure to follow and read all instructions carefully before installing or operat- ing this control could cause personal injury and/or property damage.

2	THERMOSTAT FEATURES
		FAN	SYSTEM
	AUTO	ON	COOL OFF	HEAT
			G RC			4
					B
	O
				W	Y	R
		RH	A Y		6	5

Mounting Screw KEEP THIS AREA	Hole Mounting Screw	Mounting Hole	Mounting Hole
CLEAR OF WIRES	in Wall

Figure 1. Thermostat subbase and wallplate

3 REMOVING OLD THERMOSTAT

!CAUTION

To prevent electrical shock and/or equipment damage, disconnect electrical pow- er to the system at the main fuse or circuit breaker until installation is complete.

wallplate to wall (see Fig. 1).

C.Attach wires to appropriate terminals:

•For two wire systems (Heat Only or Cool Only). Replace subbase with wall- plate. If you have a two-wireHeat Only system, attach one wire to R and one to wire W. If you have a two-wireCool Only system, attach one wire to R and one to wire to Y. Tighten any unused terminals securely. (see Fig. 5 and 6).

•If your system has more than two wires: Use the cross reference chart to determine correct wire connections. If you have a four-wire heat/cool system leave the factory installed jumper between RC and RH attached (see Fig 2.). If your sys- tem has five wires remove the factory installed jumper between RC and RH (see Fig 3.).

•Electric heat or single stage heat pump systems: These thermostats are configured from the factory to operate a heat/cool, fossil fuel (gas, oil, etc.) forced air system. This is correct for any system that DOES NOT require the thermostat to energize the fan on a call for heat. If your system is an electric heat or heat- pump system that REQUIRES the thermostat to turn on the fan on a call for heat, remove the yellow factory-installed jumper wire from the Y terminal and connect it to the A terminal. This will allow the thermostat to energize the fan immediately on a call for heat. If you are unsure if the heating system requires the thermostat to control the fan, contact a qualified heating and air conditioning service person. For single stage heat pump applications (no auxillary heat), install a short jumper wire (not included) across terminals W and Y. If the system has a reversing valve connection energized in Cooling, attach it to O. If the system has a reversing valve connection energized in Heating, attach it to B (see Fig. 4). This thermostat will not provide multi-stage heating or cooling.

D.Mount Thermostat Base: Gently push excess wire back into the wall opening and plug hole with a fire-resistant material, such as fiberglass insulation to prevent drafts from affecting thermostat operation. Mount the thermostat base to the sub- base using the three captive screws on the thermostat base. (See Fig. 1) Tighten the screws securely. Proceed to Step #5.

Before removing wires from old thermostat’s switching subbase, label each wire with				! CAUTION
the terminal designation it was removed from.			Take care when securing and routing wires so they do not short to adjacent
1. Remove Old Thermostat: A standard heat/cool thermostat consists of three basic			terminals or rear of thermostat. Personal injury and/or property damage may
			occur.
	parts:
	a. The cover, which may be either a snap-on or hinge type.
			TERMINAL CROSS REFERENCE CHART
	b. The base, which is removed by loosening all captive screws.
			New Thermostat		Other Manufacturers’
	c. The switching subbase, which is removed by unscrewing the mounting		Terminal Designation		Terminal Designation
	screws that hold it on the wall or adaptor plate.							*	*
Make a note here		of the anticipator setting on the old thermostat for	RH	4		RH	M	R5	R
			RC	R		R	V	–	–
future reference and use in step 5.
			G	G		G	F	G	G
The heat anticipator pointer, if adjustable, will be set at one of a series of numbers			W	W		W	H	4	W
representing the current rating of the primary control in your furnace. The number will			Y	Y		Y	C	Y6	Y
be one of the following: .2, .4, .8, etc. or 0.2, 0.4, 0.8, etc.			* These are four-wire, single-transformer systems. Factory installed jumper wire
			between the RH and RC terminals must remain in place.
		www.white-rodgers.com						PART NO. 37-6881B
								Replaces 37-6881A
									0921