Emerson P210 User Manual

Single-Stage Thermostat

with scheduling

Install Guide

Want to install the easy way?

Model # P210	37-7578
Made in China

GUIDE CONTENTS
Preparations..................................................	3
Thermostat details.........................................	4
Removal of your old thermostat....................	5
Mounting and wiring your new thermostat.. 10
Checking thermostat operation...................	12
Programming your thermostat.....................	16
Specifications..............................................	33
Troubleshooting..........................................	35

!WARNING

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

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1. PREPARATIONS

1.1 Check package contents

This package should contain the following items:

•Thermostat

• Mounting screws and wall anchors (x2)

•2 AAA batteries

•Terminal wire label stickers

•Installation instructions

1.2 Gather tools

Required tools:

□ Flat-head Screwdriver	□ Small pliers (needle-nose) □ Drill with 3/16” (4 mm) bit
Optional tools:
□ Wire cutters/stripper	□ Hammer

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2. THERMOSTAT DETAILS

The thermostat buttons and switches

Raises temperature setting. Lowers temperature setting. TIME button.

PRGM (program) button. RUN (run program) button. HOLD temperature button. FAN switch (ON, AUTO). SYSTEM switch

(COOL, OFF, HEAT).

						1
						2
Time	Prgm	Run		Hold	Fan	System
			Fltr	On	Auto	Cool Off Heat
3	4	5		6	7	8

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3. REMOVING OLD THERMOSTAT

3.1 Turn off power

or

!WARNING

To prevent electrical shock and/or equipment damage, disconnect electrical power to the system at the main fuse or circuit breaker box, or by flipping a switch at the air handler. Do not restore power until installation is complete.

To ensure the power to your heating and cooling system has been turned off, try to turn on heating or cooling by changing the temperature on your old thermostat.

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3.2 Remove the old thermostat cover

Remove the old thermostat’s front cover from the wall base. Some covers pull off easily, while others may need to be removed by prying the cover off with a screwdriver.

! CAUTION

Your old thermostat may have a sealed glass tube containing mercury. Be careful not to damage the tube or dispose of the tube in your trash. For safe disposal information, please see Mercury Notice on page 43.

3.3 Label wires

Tip: Taking a picture with a camera or smartphone can help you not only remember how wires are connected to the terminals, but can also ensure that you label your wires correctly.

Using your screwdriver, carefully unscrew one wire at a time from the terminal block and attach the corresponding wire label sticker.

Please note that not all terminals may be used, and that there’s no standard color code for thermostat wires, so your wire colors may vary. For your reference, we’ve included a terminal label reference chart on page 7 to help you connect the wires in your old thermostat to your new thermostat in case you get stuck.

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Terminal labeling reference chart

	If your current terminal has	Label the wires with the	Terminal function
	the following letter	following letters
	RH, R, R5, 5	RH	24V Power (Heating)
	RC	RC	24V Power (Cooling)
	W, W1, 4	W	Heating Relay
	Y, Y1	Y	Cooling Relay
	G	G	Fan Relay
	O	O	Reversing Valve (for heat pump applications
			energized in Cool mode)
	B	B	Reversing Valve (for heat pump applications
			energized in Heat mode)

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3.4 Identify jumper wire

	On your old thermostat, if…	Then, on your new thermostat…
	Terminal RC and RH are connected	Leave the jumper wire in its place
	with a jumper wire
	There’s only one R wire (RC, RH, R or R5)	Leave the jumper wire in its place
	coming out of the wall
	Terminal RC and RH (or 5 or R5) are NOT	Remove the jumper wire between RC and RH
	connected by a jumper wire

For terminal Y and W:

If you have a heat pump with reversing valve, connect Y and W with a jumper wire on your new thermostat.

If you need help with labeling and wiring, please contact Customer Support at 877.654.9394 or email [e-mail] — we’re here to help!

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3.5 Remove old thermostat base

With all of your wires disconnected and properly labeled, you may now safely remove the thermostat base from your wall.

Tip: Worried about having your wires falling into your wall? Keep the wires secure by wrapping the them around a pencil.

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4. MOUNTING AND WIRING YOUR NEW THERMOSTAT

4.1 Install new thermostat base

Mount your new thermostat base using the supplied screws. Drill holes and insert wall anchors to secure the thermostat base to the wall, if necessary.

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4.2 Connect wires to corresponding terminal blocks

Match each labeled wire to it’s corresponding terminal on the mounted thermostat base. Insert each labeled wire into the hole of it’s matching terminal, and using the screwdriver, tighten the screw on the terminal block securely.

! 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.

4.3 Set switch and advanced wiring

If you have either a gas or oil furnace, set the switch to GAS.

If you have an electric furnace, set the switch to ELEC.

Electric / Gas switch

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4.4 Install the batteries and attach front cover

Install the includedAAAalkaline batteries and push the front cover on to the thermostat base until it’s secure.

4.5 Turn on power

Turn on your power at the source.

Congratulations! You’ve completed the thermostat installation process

5. CHECK THERMOSTAT OPERATION

Tip: If at any time during testing your system does not operate properly, please contact Customer Support at 877.654.9394 or email [e-mail]

5.1 Fan operation

If your system does not have a G terminal connection, skip to 5.2 Heating system.

1.Move FAN switch to ON position. The blower should begin to operate.

2.Move FAN switch to AUTO position. The blower should stop immediately.

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5.2		Heating system
1.	Move SYSTEM switch to HEAT position. If the heating system has a standing pilot, be sure to light it.
2.	Press to adjust thermostat setting room temperature. The heating system should begin to operate.
3.	Press to adjust temperature setting below room temperature. The heating system should stop operating.
5.3		Cooling system

! CAUTION

To prevent compressor and/or property damage, if the outdoor temperature is below 50°, DO NOT operate the cooling system

1.Move SYSTEM switch to COOL position.

2.Press to adjust thermostat setting below room temperature. The blower should come on immediately on high speed, followed by bold air circulation.

3.Press to adjust temperature setting above room temperature. The cooling system should stop operating.

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5.4 Typical wiring diagrams

JUMPER

WIRE

THERMOSTAT

C‡

B

O

Y

G

W

RC RH

SYSTEM

Fan

Heating

Relay

System

24 VAC

Hot

NOTE

120 VAC

For 2-wire Heat only,

Neutral

attach to RH and W

TRANSFORMER

Typical wiring diagram for heat only, 3-wire, single transformer systems

C‡ B O

Y

G

W

RC

RH

THERMOSTAT

SYSTEM

Hot

Cooling

Fan

Heating

120 VAC

System

Relay

System

Neutral

HEATING

TRANSFORMER

24 VAC

Hot

120 VAC

Neutral

COOLING TRANSFORMER

Typical wiring diagram for heat/cool, 5-wire, two-transformer systems

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