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- 9 - 

the switch stays in this position. 

2.  Adjust the setpoint to a temperature above the current room temperature.   

 If the (FA)st heating cycle rate is selected in the configuration menu (see 

“Configuration 

Menu Chart

”), the thermostat will call for emergency heat when the room temperature is 

0.75ºF (0.5ºC) below setpoint and turn off at setpoint. 

 If the (SL)ow heating cycle rate is selected, the thermostat will call for emergency heat 

when the room temperature is 1.5ºF (1ºC) below setpoint and turn off at setpoint. 

3.  In emergency heat mode, 

“AUX” will display when the thermostat is in a call for heat. 

Note 

– 

  will not display.   

Cooling System     

CAUTION: To prevent compressor and/or property damage, if the outdoor temperature 
is below 50ºF (10ºC), DO NOT operate the cooling system.     

1.  Move the 

SYSTEM

 switch to the 

COOL

 position.   

2.  Adjust the setpoint to a temperature below the current room temperature.   

 If the (FA)st cooling cycle rate is selected in the configuration menu (see 

“Configuration 

Menu Chart

”), the thermostat will call for cooling when the room temperature is 0.75ºF 

(0.5ºC) above setpoint and turn off at setpoint. 

 If the (SL)ow cooling cycle rate is selected, the thermostat will call for cooling when the 

room temperature is 1.5ºF (1ºC) above setpoint and turn off at setpoint. 

3.  When the thermostat calls for cooling, 

  will display. If 

  is not displayed and 

“COMP 

DELAY” is flashing, the compressor lockout delay feature is operating. (See “Configuration 
Menu Chart

”) 

Equipment Monitor 

The “L” terminal on the thermostat allows for an equipment monitor input. For example, a 
compressor drip pan overflow alarm could be wired. When a 24 VAC signal is sent to the “L” 
terminal, 

the thermostat will flash “SERVICE” on the LCD to indicate that action is required. 

Contact your HVAC contractor for detai

ls on what may be wired to the “L” terminal. 

If all functions listed above operate properly, the thermostat is installed correctly.     

BASIC THERMOSTAT OPERATION

 

Setting the Thermostat 

 

1.  This thermostat is very easy to operate. Move the 

SYSTEM

 switch to either 

EMH,

 

HEAT,

 or 

COOL

, then press 

either the ▲ or ▼ button to adjust the setpoint to the desired value. 

2.  Move the 

FAN 

switch to either 

AUTO 

or

 ON

AUTO

 will run the fan only when the 

thermostat calls for heating, emergency heating (depending on the position of the FAN 
OPTION switch 

– see page 5), or cooling. 

ON

 will run the fan continuously. Note 

– 

continuous fan will run in 

EMH,

 

HEAT

COOL

, and 

OFF

 system settings.   

Содержание SN12I

Страница 1: ...Safety Information 1 Remove the Old Thermostat 3 Install the New Thermostat 4 Configuration 5 Configuration Menu Chart 6 Parameters 6 System Check 8 Basic Thermostat Operation 9 Troubleshooting 10 Wa...

Страница 2: ...n clock function IMPORTANT SAFETY INFORMATION Use a professional contractor to install this thermostat Read all of the information in this manual before installing this thermostat WARNING Electrical S...

Страница 3: ...vice Reminder Time Day Setting Low Battery Icon Configuration Compressor Lockout Delay SET TO AM MON SERVICE FILTER CONFIG COMP DELAY ON AUTO AUX EMH Figure 1 THERMOSTAT BUTTONS AND SWITCHES Figure 2...

Страница 4: ...OFF position 3 Remove the cover of the old thermostat This should expose the wires 4 Label the wires from the existing thermostat using the enclosed wire markers and record in the chart below before r...

Страница 5: ...ing screws and anchors provided mount the thermostat base loosely to the wall or junction box See Figure 3B 6 Place a level against the bottom of the base and adjust until level then tighten the screw...

Страница 6: ...the battery compartment Install two fresh AA alkaline batteries in the battery compartment CAUTION Installing batteries backwards can damage the thermostat Be sure to match positive and negative ends...

Страница 7: ...compressor from short cycling you can select the minimum length of time the compressor will turn off between cycles from 0 to 5 minutes in 1 minute increments When a compressor lockout delay occurs CO...

Страница 8: ...the number of days is also displayed in the upper left corner of the LCD A selection of 00 will deactivate this feature When SERVICE FILTER is displayed in EMH HEAT or COOL mode it can be cleared by...

Страница 9: ...ow setpoint and turn off at setpoint The auxiliary heat will activate when the room temperature is below the setpoint by the auxiliary heat offset value AU plus heating cycle rate value HC as establis...

Страница 10: ...e SL ow cooling cycle rate is selected the thermostat will call for cooling when the room temperature is 1 5 F 1 C above setpoint and turn off at setpoint 3 When the thermostat calls for cooling will...

Страница 11: ...e If no buttons are pressed within 15 seconds the thermostat will exit to normal operation 4 In filter review mode press and hold the and buttons at the same time to reset the amount of time until the...

Страница 12: ...itations or ex clusion may not a pply to you INTERNATIONAL REFRIGERATION PRODUCTS CO INC LIMITED WARRANTY POLICY INTERNATIONAL REFRIGERATION PRODUCTS CO INC Langhorne PA 19047 www irproducts biz INTE...

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