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Emerson EE542-1Z - page 1
EE542-1 Z I Installation Manual Smart Energy Programmable Thermostat + Energy Monitor ...
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Emerson EE542-1Z - page 2
1 2 3 3 4 6 9 14 17 19 20 - 22 Back Cover Contents Introduction Getting Started Installing the Thermostat Quick Guide Step 1: Remove the Old Thermostat Step 2: Mount the New Thermostat Step 3: Configure the Thermostat Step 4: Check Thermostat Operation Step 5: Pair De vice to Home Area Network Step 6: V erify W ireless Connectivity Wiring Chart Wir ...
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Emerson EE542-1Z - page 3
Introduction • About this Guide • System Compatibility 1 This guide describes how to install and configur e your new Smart Energy thermostat. This product r eplaces most thermostats, including those that work with: • Standar d Heat and Cool Systems • T wo-Stage H eat and T wo-Stage Cool Systems • Air Source Heat P ump (with Aux. or Emerge ...
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Emerson EE542-1Z - page 4
Getting Started N ote: This product r equires a 24v AC power supply via the C terminal for operation. • Thermostat (1) • Wall anchors (2) • Mounting scr ews (2) Required Items • Flat blade scr ewdrivers – 1 large and 1 micro tip • Hand or pow er drill with 3/16 inch drill bit • Wire strippers • Level (optional) Required T ools Befor ...
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Emerson EE542-1Z - page 5
3 T o prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or cir cuit breaker box until installation is complete. CA UTION Quick Guide • T urn of f power at the breaker . • Remov e cover from old ther mostat to expose wires. • Document which wir es go to which terminals using the table on the bac ...
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Emerson EE542-1Z - page 6
4 T o prevent electrical shock and/or equipment damage, disconnect electr ic power to system at main fuse or cir cuit breaker box until installation is complete. CA UTION This product does not contain mercury . However this product may r eplace a product that contains mercury . Mer cury and products containing mercury must not be discarded in house ...
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Emerson EE542-1Z - page 7
5 Remov e the Old Thermostat Important: Do not let wires fall back into the wall. 1. R emove the front co ver of the old thermostat. 2 . With wir es still attached, remo ve wall plate from the wall by loosening the scr ews. If the old thermostat has a wall mounting plate, remo ve both the thermostat and the wall mounting plate. 3. I dentify each wi ...
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Emerson EE542-1Z - page 8
O/B G W/E W2 L Y2 Y1 RC RH C C 6 T ake care when securing and routing wir es so they do not shor t to adjacent terminals or rear of ther mostat. P ersonal injury and/or property damage may occur . CA UTION STEP 2. Mount the Ne w Thermostat 1. U npack the thermostat and separate the mounting plate from the thermostat. R emove the packing material fr ...
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Emerson EE542-1Z - page 9
O/B G W/E W2 L Y2 Y1 RC RH C C 7 3. Once you have established the desir ed location of the thermostat, use a pencil, and the wall plate as a template, to mark the location of the mounting holes on your wall. 4. Mo ve wall plate out of the way and drill two holes using a 3/16" drill bit. 5. F eed the thermostat wires through the r ectangular ho ...
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Emerson EE542-1Z - page 10
8 Connect wires as follows: • If necessary , strip insulation about 3/8 inch from the end of the wir e. • U se the table you previously filled out on the back of the installation manual (or the wir ing chart on page 20) to locate the corr ect terminal for each wire connection. • Bend the wir e slightly , inser t the wir e under the contact pl ...
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Emerson EE542-1Z - page 11
9 STEP 3. Configure the Thermostat 1. T o enter the INST ALLA TION MENU, simultaneously press and hold and for 3 seconds. Y ou will be greeted with the following disclaimer . T o enter the INST ALL A TION MENU, press Y es. 2. While in the INST ALLA TION MENU, and scroll the cursor up and do wn respectively , the goes back one menu level and the and ...
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Emerson EE542-1Z - page 12
NO TE: The pr esence of a wir e in the W2 terminal is a good indication that the user has two-stage equipment located inside the house (furnace, air handler , or boiler). The pr esence of a wire in the Y2 terminal is a good indication that the homeo wner has two-stage equipment located outside the house (air conditioner or heat pump). 10 If the sys ...
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Emerson EE542-1Z - page 13
11 3. About This Device Installation > About This Device By properly identifying the type of equipment on pr emise in the HV AC Equipment Setup portion of the installation menu, no further modifications to the thermostat are r equired. Ho wever , if you want to further customize specific attributes you may do so via the Advanced HV AC Options me ...
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Emerson EE542-1Z - page 14
This feature is intended to help pr otect the compressor from short cycling. Some newer compr essors already have a time delay built in and do not requir e this feature. Y our compressor manufacturer can verify if the lockout featur e is already present in their system. Options for this menu item include: • OFF: (Default) N o compressor wait time ...
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Emerson EE542-1Z - page 15
This configures whether the O/B terminal for the heat pump r eversing valve will be energized during cool (O) or heat (B) mode. 4D. O/B Configuration Installation > Advanced HV AC Options > O/B Configuration If the user has multi-stage equipment and would like to have the ability to rapidly heat or cool on command, then set this feature to th ...
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Emerson EE542-1Z - page 16
STEP 4. Check Thermostat Operation T o prevent compr essor and/or proper ty damage, DO NO T operate the cooling system if the outdoor temperature is belo w 55° F . CA UTION Once you have installed your new ther mostat, you need to check that the fan, cooling system, and heating system are all operating properly . If you ar e still in the INST ALLA ...
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Emerson EE542-1Z - page 17
Check the heating system 1 . Pr ess Heating / Cooling Mode key one or mor e times to select HEA T mode. If the auxiliary heating system has a standing pilot, be sure to light it. 2. P ress the to adjust thermostat setting to 1° abo ve room temperature. The heating system should begin to operate. NO TE: If the system is configured as a heat pump an ...
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Emerson EE542-1Z - page 18
Check the back-up heating system (heat pump systems only): The Back U p Heat bypasses the heat pump to use the heat source wired to E & W2 terminals of the thermostat. Back U p is typically used when compressor operation is not desir ed, the user prefers to utilize the back-up heat only , or the compressor is not able to satisfy the demand for ...
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Emerson EE542-1Z - page 19
STEP 5. P air Device to a Home Area Network Installation > N etwork Settings > Installation I nformation F rom the NETWORK SETTINGS screen, highlight INST ALL A TION INFORMA TION and press . T o pair this device to a network coordinator (such as a smart meter or IP gateway), follow these steps: STEP 1 During the pairing pr ocess defined by yo ...
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Emerson EE542-1Z - page 20
Once you have pro vided the two numbers above you will be asked to send a “Join ” request from the thermostat. T o do so go to the NETWORK CONNECTION screen. STEP 3 P ress the CONNECT key . STEP 4 Y ou may have to wait up to 3 minutes for the pairing process to be completed. During that time you will see the following content on the display: ST ...
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Emerson EE542-1Z - page 21
STEP 6. V erify Wireless Connectivity The following scr een in the NETWORK SETTINGS area of the installation menu will serve as fur ther confirmation of network connectivity: STEP 1 On the home screen, a wir eless icon will also confirm that the unit is in fact connected to a network coordinator . STEP 2 If a connection is not made, the words “NO ...
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Emerson EE542-1Z - page 22
NO TE: This product requir es 24V power supply via the C terminal to operate. W iring Chart O/B G W/E W2 L Y2 Y1 RC RH C O/B G W/E W2 L Y2 Y1 RC RH C NO TE: No thermostat installation uses all of the wir es shown belo w . In most cases, between 5 and 6 terminals ar e wired. The remaining terminals will not be used. * F AIL URE T O REMOVE PR OVIDED ...
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Emerson EE542-1Z - page 23
21 Y1 Conventional H VA C Cool Mode Stage 1 Compressor Contactor Heat P ump Y2 Cool Mode Stage 2 Compressor Stage 2 W/E Heat M ode Stage 1 A UX Heat Stage 1 W2 Heat M ode Stage 2 A UX Heat Stage 2 O/B – Reversing V alve The following terminals on the thermostat M ounting Plate are wir ed according to the type of HV A C system connected to and the ...
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Emerson EE542-1Z - page 24
37-7301C W iring T able Old T erminal W , W1, 4, E W/E Y , Y1 Y1 G G R C, R R C RH, 5, R5 RH W2, W-U W2 Y2 Y2 C C L, F L O, B O/B Wir e Color N ew T erminal 2013 Emerson, Emerson Climate Technologies are trademarks of Emerson Electric Co. or one of its affiliated companies. ©20 1 3 Emerson Electric Co. All rights reserved. ...
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