Friedrich EMRT-1 User manual

EMRT1
Energy Management Wired
Thermostat with an Occupancy
Sensor
PART NO. 94993003_01
INSTRUCTION MANUAL

3
Table of Contents
Introduction............................................................................................................ 5
Before You Begin................................................................................................... 6
Programming a Thermostat with a Network Programmer ..................................... 7
Thermostat Installation .......................................................................................... 8
Thermostat Conguration...................................................................................... 9
Setting the thermostat clock ................................................................................ 10
Entering the room number................................................................................... 11
Conguring the Equipment Settings - Compressor Type .................................... 12
Conguring the Equipment Settings - Electric Heat ............................................ 13
Conguring the Equipment Settings - Reversing Valve....................................... 14
Conguring the Energy Saving Settings ............................................................. 15
Testing the thermostat ......................................................................................... 16
Accessing the Thermostat Settings..................................................................... 17
Custom Energy Savings Settings........................................................................ 17
Using the Thermostat Settings Screens.............................................................. 18
01 – FAN CONTROL MODE ............................................................................... 19
02 – 1ST STAGE DIFFERENTIAL - HEAT............................................................ 20
03 – 2ND STAGE DIFFERENTIAL - HEAT............................................................ 21
04 – 1ST STAGE DIFFERENTIAL - COOL ......................................................... 22
05 – INCIDENTAL OCCUPANCY THRESHOLD................................................. 23
06 – NIGHT OCCUPANCY THRESHOLD........................................................... 24
07 – FORCED 2ND STAGE HEATING................................................................ 25
08 – NIGHT OCCUPANCY START ..................................................................... 26
09 – NIGHT OCCUPANCY END ......................................................................... 27
10 – TEMPERATURE RECOVERY TIME ........................................................... 28
11 – RECOVERY TEMPERATURE - HEAT ........................................................ 29
12 – TEMPERATURE SETBACK DELAY - HEAT............................................... 30
13 – MINIMUM SETBACK TEMPERATURE ...................................................... 31
14 – TEMPERATURE SETBACK DELAY - COOL.............................................. 32
15 – MAXIMUM SETBACK TEMPERATURE...................................................... 33
16 – RECOVERY TEMPERATURE - COOL ....................................................... 34
17 – MINIMUM SET POINT................................................................................. 35

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Table of Contents
18 – MAXIMUM SET POINT ............................................................................... 36
19 – TEMPERATURE CONTROL MODE ........................................................... 37
20 – AUTO CHANGEOVER SET POINT OFFSET ............................................. 38
21 – SETBACK SET POINTS / AUTO-RESTORE .............................................. 39
22 – AUTOMATIC HUMIDITY CONTROL†.......................................................... 40
22 – TEMPERATURE CALIBRATION................................................................. 41
Troubleshooting................................................................................................... 42
Error Codes ......................................................................................................... 42
APPENDIX 1 - Energy Saving Presets................................................................ 44
APPENDIX 2 - Glossary...................................................................................... 45
Warranty Information ........................................................................................... 46
Technical Specications ...................................................................................... 48

5
Introduction
Friedrich EMRT1 Energy Management Thermostats for the hospitality industry
deliver unprecedented energy savings without compromising guest comfort.
Integrated occupancy sensor uses a combination of motion and thermal sensing
technologies for accurate occupancy detection. Reliable occupancy detection
allows saving energy when rooms are unoccupied.
Energy saving presets eliminate the guesswork and make it easy to adjust the
energy saving settings. (Patent Pending)
Fully congurable energy saving settings allow customizing the thermostat
energy saving settings to t any situation.
Comprehensive conguration options ensure full compatibility with virtually
any existing or emerging hospitality HVAC system with up to 2 heat and 1 cool
stages.
Built-in wireless mesh-networking enables optional remote management.
For installation of a networking thermostat with remote management, refer to the
“Network Installation” manual.

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Before You Begin
➤Determine the appropriate installation location for the thermostat. The
thermostat should face the bed area of the room.
➤ Set the PTAC/ Vert-I-Pak unit to “External Thermostat” (Class 2) mode.
Consult the PTAC/ Vert-I-Pak unit documentation to determine how to set
the PTAC/ Vert-I-Pak unit to “External Thermostat” mode.

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Programming a Thermostat with a Network Programmer
In case of Network Installation with Remote Management, the thermostat must
be programmed with a Network Programmer specic to the property before the
installation.
Thermostat must not be powered during the pairing procedure..
➤Plug one programmer connector into the thermostat;
➤Push the black button on the programmer. The red light on the programmer
should turn on and remain steadily lit;
If the red light on the programmer is blinking or is not steadily lit, unplug the
programmer from the thermostat and repeat the steps above.
➤Unplug the programmer from the thermostat;
Before You Begin

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Thermostat Installation
➤ Set the PTAC unit to “External Thermostat” (Class 2) mode.
Mounting the thermostat to the wall
➤ Unplug the PTAC/ Vert-I-Pak unit;
➤ Remove the thermostat cover;
➤ Connect the thermostat wires to the supplied Wiring Connector - refer to
the Wiring Table to determine proper connections;
➤Plug in the wiring connector into to the thermostat;
➤Use the supplied wall anchors and mounting screws to secure the
thermostat to the wall;
➤ Follow the “Thermostat Conguration” instructions;
➤ Replace the thermostat cover and screw in the locking screw;
➤ Plug in the PTAC/ Vert-I-Pak unit.
NOTE: If the PTAC/Vert-I-Pak unit has only one (1) fan speed, connect both fan
control wires – Green and Purple – to the fan terminal (G).
Wiring Table - 24V AC
Wire
Color
Terminal
Letter
Terminal
Connection
Black C Common
Red R 24V
Yellow Y Compressor
White W Heat
Orange O or B Reverse Valve
Green GH Fan High
Purple GL Fan Low
Wiring Table - 24V DC
Wire
Color
Terminal
Letter
Terminal
Connection
Black R 24V
Red C Common
Yellow Y Compressor
White W Heat
Orange O or B Reverse Valve
Green GH Fan High
Purple GL Fan Low

CONFIGURATION
BUTTON
NOTE: You can access Thermostat Con gu-
ration settings at any time by pressing the
“Con guration” button.
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Thermostat Con guration
Once the thermostat is powered, thermostat con guration settings will appear on
the thermostat screen.
In order to properly operate the PTAC/ Vert-I-Pak unit:
➤Set the thermostat clock;
➤Enter the room number;
➤ Con gure the equipment settings;
➤ Select Energy Savings Preset;
The thermostat con guration screens have a 3-minute time-out. If no action is
taken within three (3) minutes, the thermostat will exit con guration settings.

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Thermostat Con guration
Setting the thermostat clock
Set the thermostat clock to current time in 24h (Military Time) format.
➤Use the “Up” and “Down” buttons to set the hours;
➤ Press the “Fan” button to advance to the minutes setting;
➤Use the “Up” an “Down” buttons to set the minutes;
➤ Press the “F/C” button to advance to the next menu;
Setting the clock correctly is crucial for proper operation of the thermostat.
HOURS MINUTES

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Thermostat Con guration
Entering the room number
Enter the room number by changing the digits on the screen. Leading zeros “0”
preceding other digits will be ignored, i.e. Room number “123” should be entered
as “00123”.
➤Use the “Up” and “Down” buttons to change the digit;
➤ Press the “Fan” button advance to the next digit;
➤ Press the “F/C” button to advance to the next menu;
Entering the room number correctly is crucial for proper operation of remotely
managed thermostats.

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Thermostat Con guration
Con guring the Equipment Settings - Compressor Type
➤Use the “Up” and “Down” buttons to change the compressor type by
changing the  rst digit;
0 No Compressor
1 Heat Pump
2 * Air Conditioner
➤ Press the “Fan” button to advance to the next setting;
* Indicates default setting;
COMPRESSOR TYPE

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Thermostat Con guration
Con guring the Equipment Settings - Electric Heat
➤ Use the “Up” and “Down” buttons to change the Electric Heat setting by
changing the second digit;
0 No Electric Heat
1 * Electric Heat
➤ Press the “Fan” button to advance to the next setting;
* Indicates default setting;
ELECTRIC HEAT

14
Thermostat Con guration
Con guring the Equipment Settings - Reversing Valve
➤ Use the “Up” and “Down” buttons to change the Reversing Valve setting by
changing the third digit;
0 OB contact is energized to cool;
1 * OB contact is energized to heat;
Refer to the PTAC unit documentation to determine the correct OB
VALVE setting.
If incorrect OB VALVE Setting is selected, the PTAC unit will turn on
the heating when air conditioning is requested and turn on the air
conditioning when heating is requested;
➤ Press the “Fan” button to advance to the next setting;
➤ Press the “F/C” button to advance to the next menu;
* Indicates default setting;
REVERSING VALVE

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Thermostat Con guration
Con guring the Energy Saving Settings
➤ Use the “Up” and “Down” buttons to select the Energy Saving preset:
E-0* Energy Savings Off - No Temperature Setback;
E-1 Lowest Energy Savings;
E-2 Lower Energy Savings;
E-3 Standard Energy Savings;
E-4 Higher Energy Savings;
E-5 Highest Energy Savings;
Refer to the APPENDIX 1 for Energy Saving Preset details.
E-C Indicates “Custom Energy Savings Settings” in case the active
thermostat savings settings differ from any Energy Saving preset;
For details, refer to the “Custom Energy Savings Settings” section;
➤ Press the “Power” button to save the Thermostat Con guration and start
using the thermostat;
* Indicates default setting;

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Testing the thermostat
Following the thermostat conguration, test if the thermostat is controlling the PTAC
unit.
➤Press the “Power” button to turn the thermostat ON;
➤Press the “Up” and “Down” buttons to change the temperature set point
above and below the current room temperature to test if the thermostat
initiates heating and cooling - the PTAC unit should turn heating and air
conditioning on and off.
➤Change the fan speed by touching the “Fan” button to test if the thermostat
is controlling the fan speed.
Thermostat Conguration

CONFIGURATION
BUTTON
NOTE: You can access Thermostat
Settings by pressing and holding the
“Con guration” button.
17
Custom Energy Savings Settings
If you don’t want to use the one of the energy saving presets listed on page
17 and detailed in the Appendix 1, you can enter the custom energy savings
settings.
Accessing the Thermostat Settings
➤ Press and hold the “Con guration” button until the  rst thermostat settings
screen appears.
The thermostat must be turned on to access the thermostat settings.

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Using the Thermostat Settings Screens
➤Use the “Up” and “Down” buttons to change the setting;
➤ Press the “F/C” button to advance to the next setting;
➤ Press the “Fan” button to return to the previous setting;
➤ Press the “Power” button to save and exit thermostat settings;
Custom Energy Savings Settings
SCREEN NUMBER
SETTING VALUE

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01 – FAN CONTROL MODE
Select Fan Control Mode:
00 MANUAL - guest can select automatic or continuous fan mode;
01 * AUTOMATIC - fan runs only when there is a demand for heating or
air conditioning;
* Indicates default setting;
Custom Energy Savings Settings

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02 – 1ST STAGE DIFFERENTIAL - HEAT
02-30 (0.2°F - 3.0°F; 0.5°F* default setting) Select the number
of degrees the thermostat has to sense between the automatic
changeover temperature for heat and the room temperature before a
call for the 1st stage heating is initiated.
Custom Energy Savings Settings