T200 Nest Learning Thermostat Installation Guide

User Manual: T200

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Learning Thermostat
Installation Guide

Compatibility

Contents

Based on Nest’s online compatibility checker data, the Nest
Thermostat works with most 24V systems, including gas,
electric, oil, forced air, variable speed, heat pump and radiant.
It can control:
• Heating: one, two and three stages (W1, W2, W3)
• Cooling: one and two stages (Y1, Y2)
• Heat pump: with auxiliary and emergency heat (O/B, AUX, E)
• Fan (G)
• Power (C, Rh, Rc)
• Humidifier or dehumidifier (HUM, DEHUM)
The Nest Thermostat’s * connector can accept only one
of these wires: W3, E, HUM or DEHUM.
The Nest Thermostat is designed to work even if your home
doesn’t have a common C wire. Rarely, installing a new C wire
may be required.

Display

Base

Screwdriver

Professional installation recommended for:
• Dual fuel systems (heat pump with furnace)
• Whole-home humidifiers and dehumidifiers
Go to nest.com/works to make sure the Nest Thermostat will work
in your home and find out if you need professional installation.

Watch the video
Before you start, watch our installation video
at nest.com/support

Wall screws

Optional trim plate

Optional steel plate

Optional steel
plate screws

1. Switch off power

2. Remove cover

5. Label wires

This protects you and avoids blowing a fuse
in your equipment. Adjust the temperature
on your old thermostat to make sure your
system is off.

Some covers pop off, while others need
to be unscrewed.

Peel off the blue labels and attach them to
your wires. Use the white labels if you have a
E, W3, HUM or DEHUM wire. You can connect
only one of these wires to the * connector.
See two labels for each connector?
Visit nest.com/2labels for help.

Breaker box

Tip: Take a
picture of the
wires on your
old thermostat
to help you
remember.

Switch

3. Check your system

4. Remove any jumper wires

If your old thermostat is labeled 120V or 240V
or has thick wires with wire nuts, your system
is high voltage. Not sure? Contact support.

Jumper wires are short wires between two
connectors. You won’t need them. An R wire
can go into either Rc or Rh.

CAUTION: Do not connect Nest to
high voltage wires.

Two labels

6. Disconnect wires and
remove base

Remember, the power to your
HVAC system must be off to avoid
blowing a fuse in your equipment.

7. Mark where screws will go
Use the bubble level to make sure the
Nest Thermostat is level.

Optional in most homes

8. Attach base

Use trim plate if needed

9. Connect wires
After all the wires are connected, make sure
they’re flush with the wall.

You can cover up holes or marks left by your
old thermostat with the optional trim plate.
Snap the base and trim plate together,
then screw them to the wall.
You’ll find the trim plate in the bottom
of the box.

3/8"

The exposed wire should be straight.

Optional in most homes

10. Attach display

Mounting on an electrical box

Press the display until it clicks into place.

11. Switch power back on

Electrical boxes aren’t common, but if you
have one, secure the steel plate to the
electrical box with two of the short steel
plate screws. Insert the screws into the long
slots on the steel plate.
Use the other two short screws to attach the
Nest base and trim plate to the steel plate.
Breaker box

Switch

12. Setup and Nest Account

Nest Labs, Inc.
Limited Warranty
Learning Thermostat

The Nest Thermostat will turn on and walk
you through setup. Just turn the ring and
press to select. During setup, you can
connect the thermostat to Wi-Fi.
Go to nest.com/account or download
the Nest app and create a Nest Account.
Your thermostat will connect to your
account automatically.

IMPORTANT INFORMATION ABOUT YOUR RIGHTS AND OBLIGATIONS,
AS WELL AS LIMITATIONS AND EXCLUSIONS THAT MAY APPLY TO YOU.
YOUR RIGHTS AND THIS LIMITED WARRANTY
This Limited Warranty gives you specific legal rights. You may also
have other legal rights that vary by state, province or jurisdiction.
The disclaimers, exclusions, and limitations of liability under
this Limited Warranty will not apply to the extent prohibited by
applicable law. For a full description of your legal rights you should
refer to the laws applicable in your jurisdiction and you may wish to
contact a relevant consumer advisory service.
1. WHAT THIS LIMITED WARRANTY COVERS; PERIOD OF COVERAGE
Nest Labs, Inc. (“Nest Labs”), 900 Hansen Way, Palo Alto, California
USA, warrants to the owner of the enclosed product that the
product contained in this box (“Product”) will be free from defects in
materials and workmanship for a period of two (2) years [one (1) year
for Factory Refurbished Products] from the date of delivery following
the original retail purchase (the “Warranty Period”). If the Product
fails to conform to this Limited Warranty during the Warranty Period,
Nest Labs will, at its sole discretion, either (a) repair or replace any
defective Product or component; or (b) accept the return of the
Product and refund the money actually paid by the original purchaser
for the Product. Repair or replacement may be made with a new or
refurbished product or components, at Nest Labs’ sole discretion.
If the Product or a component incorporated within it is no longer
available, Nest Labs may replace the Product with a similar product
of similar function, at Nest Labs’ sole discretion. This is your sole and
exclusive remedy for breach of this Limited Warranty. Any Product
that has either been repaired or replaced under this Limited Warranty
will be covered by the terms of this Limited Warranty for the longer of
ninety (90) days from the date of delivery or the remaining Warranty
Period. This Limited Warranty is transferable from the original
purchaser to subsequent owners, but the Warranty Period will not be
extended in duration or expanded in coverage for any such transfer.

Questions about adding a thermostat to your
Nest Account? Visit nest.com/pairing

2. TOTAL SATISFACTION RETURN POLICY
If you are the original purchaser of the Product and you are not
satisfied with this Product for any reason, you may return it in its
original condition within thirty (30) days of the original purchase and
receive a full refund.

For more information visit nest.com
You can also find answers in the Nest
Community at nest.com/community

Recycle your old thermostat:
see nest.com/responsibility
Please recycle Nest’s 100%
recyclable packaging.

3. WARRANTY CONDITIONS; HOW TO GET SERVICE IF YOU WANT TO
CLAIM UNDER THIS LIMITED WARRANTY
Before being able to claim under this Limited Warranty, the owner
of the Product must (a) notify Nest Labs of the intention to claim by
visiting http://support.nest.com during the Warranty Period and
providing a description of the alleged failure, and (b) comply with
Nest Labs’ return shipping instructions, and (c) ship the Product at

owner’s cost (except where prohibited by applicable law) to Nest
Labs for repair or replacement. Nest Labs will have no warranty
obligations with respect to a returned Product if it determines, in its
reasonable discretion after examination of the returned Product,
that the Product is an Ineligible Product (defined below). Nest Labs
will bear all costs of return shipping to owner, except with respect to
any Ineligible Product, for which owner will bear all shipping costs.
4. WHAT THIS LIMITED WARRANTY DOES NOT COVER
This warranty does not cover the following (collectively “Ineligible
Products”): Products marked as “sample” or sold “AS IS”; or
Products that have been subject to: (a) modifications, alterations,
tampering, or improper maintenance or repairs; (b) handling,
storage, installation, testing, or use not in accordance with the
Installation Guide or other instructions provided by Nest Labs;
(c) abuse or misuse of the Product; (d) breakdowns, fluctuations,
or interruptions in electric power or the telecommunications
network; or (e) Acts of God, including lightning, fire, flood, tornado,
earthquake, or hurricane. This warranty does not cover consumable
parts, including batteries, unless damage is due to defects in
materials or workmanship of the Product, or software (even if
packaged or sold with the product). Nest Labs recommends that
you use only authorized service providers for maintenance or
repair. Unauthorized use of the Product or software can impair the
Product’s performance and may invalidate this Limited Warranty.
Nest Labs does not warrant that operation of the Product will be
error-free or uninterrupted or that the Product will in every case
process all data correctly.
5. DISCLAIMER OF WARRANTIES
EXCEPT AS STATED ABOVE IN THIS LIMITED WARRANTY, AND TO THE
MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, NEST LABS
DISCLAIMS ALL EXPRESS, IMPLIED, AND STATUTORY WARRANTIES
AND CONDITIONS WITH RESPECT TO THE PRODUCT, INCLUDING
THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE. TP THE MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, NEST LABS ALSO LIMITS THE DURATION OF ANY
IMPLIED WARRANTIES OR CONDITIONS TO THE DURATION OF THIS
LIMITED WARRANTY.
6. LIMITATION OF DAMAGES
IN ADDITION TO THE ABOVE WARRANTY DISCLAIMERS, IN NO EVENT
WILL NEST LABS BE LIABLE FOR ANY CONSEQUENTIAL, INCIDENTAL,
EXEMPLARY, OR SPECIAL DAMAGES, INCLUDING ANY DAMAGES
FOR LOST DATA OR LOST PROFITS, ARISING FROM OR RELATING TO
THIS LIMITED WARRANTY OR THE PRODUCT, AND NEST LABS’ TOTAL
CUMULATIVE LIABILITY ARISING FROM OR RELATED TO THIS LIMITED
WARRANTY OR THE PRODUCT WILL NOT EXCEED THE AMOUNT
ACTUALLY PAID FOR THE PRODUCT BY THE ORIGINAL PURCHASER.

7. LIMITATION OF LIABILITY
NEST LABS DISCLAIMS ALL LIABILITY OF ANY KIND OF NEST LABS’
SUPPLIERS. THE NEST LABS ONLINE SERVICES (“SERVICES”)
PROVIDE YOU INFORMATION (“PRODUCT INFORMATION”)
REGARDING YOUR ENERGY USE AND YOUR HVAC EQUIPMENT OR
OTHER PERIPHERALS CONNECTED TO YOUR PRODUCT (“PRODUCT
PERIPHERALS”). THE TYPE OF PRODUCT PERIPHERALS THAT MAY
BE CONNECTED TO YOUR PRODUCT MAY CHANGE FROM TIME TO
TIME. THE SERVICES MAY BE USED TO CONTROL YOUR HEATING,
VENTILATION, AND AC SYSTEM OR PRODUCT PERIPHERALS VIA
THE PRODUCT. WITHOUT LIMITING THE GENERALITY OF THE
DISCLAIMERS ABOVE, ALL PRODUCT INFORMATION IS PROVIDED
FOR YOUR CONVENIENCE, “AS IS”, AND “AS AVAILABLE”. NEST LABS
DOES NOT REPRESENT, WARRANT, OR GUARANTEE THAT PRODUCT
INFORMATION WILL BE AVAILABLE, ACCURATE, OR RELIABLE
OR THAT PRODUCT INFORMATION OR USE OF THE SERVICES OR
PRODUCT WILL DECREASE THE ENERGY CONSUMPTION OF YOUR
HOME. YOU ARE SOLELY RESPONSIBLE FOR ALL ENERGY BILLS
INCURRED BY YOUR HOME. YOU USE ALL PRODUCT INFORMATION,
THE SERVICES, AND THE PRODUCT AT YOUR OWN DISCRETION
AND RISK. YOU WILL BE SOLELY RESPONSIBLE FOR (AND NEST
LABS DISCLAIMS) ANY AND ALL LOSS, LIABILITY, OR DAMAGES,
INCLUDING TO YOUR HVAC SYSTEM, PLUMBING, HOME, PRODUCT,
PRODUCT PERIPHERALS, COMPUTER, MOBILE DEVICE, AND ALL
OTHER ITEMS AND PETS IN YOUR HOME, RESULTING FROM YOUR
USE OF THE PRODUCT INFORMATION, SERVICES, OR PRODUCT.
PRODUCT INFORMATION PROVIDED BY THE SERVICES IS NOT
INTENDED AS A SUBSTITUTE FOR DIRECT MEANS OF OBTAINING
THE INFORMATION. FOR EXAMPLE, A TEMPERATURE READING IN
THE PRODUCT INFORMATION PROVIDED BY THE SERVICES IS NOT
INTENDED AS A SUBSITUTE FOR READING THE TEMPERATURE AS
DIRECTLY DISPLAYED BY THE PRODUCT.
8. VARIATIONS THAT MIGHT APPLY TO THIS LIMITED WARRANTY
Some jurisdictions do not allow limitations on how long an
implied warranty lasts or exclusions/limitations on incidental or
consequential damages, so some of the limitations set out above
may not apply to you.
64-10-0018-ES-A_130618



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