Amana MMW-2 Wall Thermostats Installation Guide

: June 9, 2024
: Amana

Amana MMW-2 Wall Thermostats

Thermostat Application Guide

Description|
---|---
Gas or Oil Heat| Yes
Electric Furnace| Yes
Heat Pump ( No Aux. or Emergency Heat)| Yes
Heat Pump (With Electric Aux.)| Yes
Heat Pump (With Gas Aux .)| No
Multi-Stage Systems| No
Heat Only Systems – Floor or Wall Furnace| Yes
Cool Only Systems| Yes
High and Low Fan Speed| Yes
Millivolt| No
Emergency Heat| No
Conventional Single Stage Furnace| Yes
Geothermal| Yes

Power Type

Battery Power Hardwire (Common Wire) Hardwire (Common Wire) with Battery Backup

A trained, experienced technician must install this product.

Carefully read these instructions. You could damage this product or cause a hazardous condition if you fail to follow these instructions.

Wall Locations

The thermostat should be installed approximately 4 to 5 feet above the floor. Select an area with average temperature and good air circulation.

Installation Tip
Pick an installation location that Is easy for the user to access. The temperature of the location should be representative of the building.

Do not install thermostat in locations:

Close to hot or cold air ducts
That are in direct sunlight
With an outside wall behind the thermostat
In areas that do not require conditioning
Where there are dead spots or drafts (in corners or behind doors)
Where there might be concealed chimneys or pipes

Subbase Installation

For vertical mount put one screw on the top and one screw on the bottom.
For horizontal mount put one screw on the left and one screw on the right.

Installation Tip: Electrical Hazard
Failure to disconnect the power before beginning to install this product can cause electrical shock or equipment damage.

Mercury Notice All of our products are mercury free.
However, if the product you are replacing contains mercury, dispose of it properly. Your local waste management authority can give you instructions on recycling and proper disposal.

Installation Tips

Mount Thermostat

Align the 4 tabs on the subbase with corresponding slots on the back of the thermostat, then push gently until the thermostat snaps in place.

Battery Installation

Battery installation is optional if thermostat is hardwired (Rand C terminal connected to 24V power).

Important:
High quality alkaline batteries are recommended. Rechargeable batteries or low quality batteries do not guarantee a 1-year life span.
Insert 2 AAA Alkaline batteries (included). High-quality alkaline batteries are recommended.

Getting to know your thermostat

LCD
Fan Switch
System Switch
Setpoint Buttons

Wiring

Wiring

If you are replacing a thermostat, make note of the terminal connections on the thermostat that is being replaced. In some cases the wiring connections will not be color coded. For example, the red wire may not be connected to the R terminal.
Loosen the terminal block screws. Insert wires then retighten terminal block screws.

Installation Tip
Do not overtighten terminal block screws, as this can damage theterminal block. A damaged terminal block can keep the thermostat from fitting on the subbase correctly or cause system operation issues. Max Torque = 6in-lbs.

Conventional	Heat Pump
R	Transformer power
C	Transformer common

Wiring
This thermostat is shipped from the factory to operate a conventional heating and cooling system. This thermostat will also operate a heat pump system. See the “heat pump” configuration step on page 10 of this manual to configure the thermostat for heat pump applications.

Wiring Tips

Caution: Electrical Hazard
Failure to disconnect the power before beginning to install this product can cause electrical shock or equipment damage.
Warning:
All components of the control system and the thermostat installation must conform to Class II circuits per the NEC Code.

C Terminal
The C (common wire} terminal does not have to be connected when the thermostat is powered by batteries.

Wire Specifications
Use shielded or non-shielded 18-22 gauge thermostat wire.

Note:
When connecting the MMW-2 to a PTAC, refer to the PTAC manufacturer instructions to enable remote thermostat operation.

Wiring Diagrams

Power supply
Jumper (not supplied) to connect GL and GH terminals.
Thermostat must be set to O and B to match the changeover valve, 0 is the cool changeover valve, Bis the heat changeover valve.
The Aux Heat Relay is energized as the second stage of heat.

Typical lH/lCSystem: 2 Speed Fan

Typical lH/lC System: 1 Speed Fan

Typical lH/lC Heat Pump System: 2 Speed Fan

Typical 2H/1C Heat Pump System: 2 Speed Fan

Note:

Most PTAC systems support two speed fan operation. In a single speed fan PTAC system or conventional single speed fan system, a jumper should be installed between GL and GH on the thermostat.

Technician Setup

Fan OperationSetup
Electric: The thermostat operation jumper pin should be put in the ELEC position. This setting allows the thermostat to operate the fan during a call for heat. Most PTAC systems will require ELEC Fan Operation Setup.

Gas: For systems that control the fan during a call for heat, put the jumper pin into the GAS position.

Set the thermostat system switch to OFF.
To enter Tech Setup Menu,press and hold “+”and “-“together for 3 seconds.
Use “+”and”-“to select desired setting for each option.
Tap “+”and “-“together to move next option.
To exit Tech Setup Menu,move system switch or wait for 15 seconds.

Tech Setup Steps| | LCD will Show| Adjustment Options| Default
---|---|---|---|---
Room Temperature Calibration| This feature allows the installer to change the calibration of the room temperature display. For example, if the thermostat read and you would like it tos 70′ read 72′ then select +2.| Calibration
| You can adjust the room temperature display to read up to 4 • above or below the factory calibrated reading.|
Pair| Transmitter and receiver pair code| | Press and hold “+” for 3 seconds until “LE” is flashed. Then release|
ForC| Select for Fahrenheit temperature read out select C for Celsius read out.| | F for Fahrenheit C for Celsius|
Compressor Short Cycle Delay| The compressor short cycle delay protects the compressor from short cycling. This feature will not allow the compresson to be turned on for 5 minutes after it was last turned off.| | Selecting ON will not allow the compressor to be turned on for 5 minutes after the last time the compressor was switched off. Select OFF to remove this delay.|
Change Over Valve

Selection

| Select O for a changeove

valve that energizes in

cooling. Select b for a

change over valve that

energizes in heating.

| | 0 for cooling changeover valve.b for heating changeover valve|
Heat Pump| When turned on the

thermostat will operate

a heat pump.Y will be

the first stage of heat &

cool, W will be the

second stage of heal.

| | OFF configures the thermostat for non heat pump systems. ON configures thethermostat for heat pump systems.|
Heating Temperature

Setpoint Limit

| This feature allows you

to set a maximum heat

setpoint value.The

setpoint temperature

cannot be raised above

this value.

| | 44.o· – so.o· F 7.o· – 32.0″ C|
Cooling Temperature

Setpoint Limit

| This feature allows you

to set a minimum cool

setpoint valve. The

setpoint temperature

cannot be lowered

below this value.

| | 44.o· – so.o· F 7.o· – 32.o· C|

Swing Setting

Swing Settings	LCD Will Show
Cooling Swing (SYSTEM COOL)	The swing setting, often called “cycle rate”,

“differential” or “anticipation” is adjustable. A smaller swing setting will cause more frequent cycles and a larger swing setting will cause fewer cycles.| | The cooling swing setting is adjustable from 0.2″ to 2·. For example: A swing setting of 0.5· will tum the cooling on at approximately 0.5″above the setpoint and turn the cooling off at approximately 0.5″ below the setpoint. The heating swing|
Heating Swing (SYSTEM HEAT)| The swing setting, often called “cycle rate”, “differential or “anticipation” is adjustable. A smaller swing setting will cause more frequent cucles and a larger swing setting will cause fewer cycles| | The heating swing setting is adjustable from 0.2″ to 2·. For example: A swing setting of 0.5″ will turn the heating on at approximately 0.5″ below the setpoint and tum the heating off at approximately 0.5″ above the setpoint.|

Swing Setting

The second stage of Heat will turn on at 2x the swing setting. The second stage will turn off when 1 x the swing is reached. For example, if the swing setting is 0.8° for heating and the thermostat is set at 70° F, the first stage will turn on at approximately 69.2° F. The second stage will turn on at 68.4°F and the first will turn off at 70.8° F.

RF Pairing

.Receiver: Use a slender object into the hole and keep it depressed (for approximately 5 seconds) until the red LED starts flashing.
Transmitter: Turn the SYSTEM switch to OFF. Press and hold”+” and “-” together for 3 seconds to access the interface of room temperature calibration. Press and hold”+” and “-” together until”LE” is displayed on the LCD.Then press and hold “+” for 3 seconds , the transmitter will transmit the code signal. When the red LED on the receiver stops flashing, indicating that the code is successful.

Specifications

The display range of temperature: 32PF to 99PF we to 40PC} The control range of temperature : 44.F to go•F (re to 32•q
Load rating : 1 amp per terminal, 1.5 amp maximum all terminals combined Swing (cycle rate or differential) :Heating is adjustable from 0.2P to 2.0· Cooling is adjustable from 0.2· to 2.0p
Power source : 18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire Battery power from 2 MA Alkaline batteries
Operating ambient : 32.F to +105PF (OPC to +41•q
Operating humidity : 90% non-condensing maximum
Dimensions of thermostat : 120 x 98 x 28M M
Operating Frequency : 433.92MHz