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LL357D4 PDS, 4.2011 

11 

Notes

Summary of Contents for Marvair LL357D4

Page 1: ...ng power outages no batteries required Programming not required Digital display shows temperature in F or C Room Temperature Offset Used to calibrate displayed room temperature with actual room temper...

Page 2: ...box for control wiring to air conditioners Low Voltage Wiring 1 All wiring must comply with local codes and ordinances 2 Disconnect power to prevent electrical shock or equipment damage 3 On dual uni...

Page 3: ...lectrical codes and ordinances Note Mount the thermostat about five feet above the floor Do not mount the thermostat on an outside wall in direct sunlight behind a door or in an area affected by a ven...

Page 4: ...stem The LL357D4 functions with air conditioners with electric heat systems To configure the LL357D4 perform the following steps 1 Verify that the LL357D4 is in the OFF mode Press the SYS left button...

Page 5: ...t up for Non Heat Pump and Type of Heat Electric Press the Up or Down button to select scale Press the Right button to advance to the next screen Press the Up or Down button to select Press the Right...

Page 6: ...set to 0 will display Press the Up or Down button to select Press the Right button to advance to the next screen 12 Temperature Sensor 1 3 1 Only on board sensor determines room temperature 2 Only re...

Page 7: ...n the lead lag control should be on One amber light will be on to identify the lead unit The other light should be off If the lag unit comes on with the lead unit the light for the lag unit will not c...

Page 8: ...ode In this mode the thermostat controls the heating system When the heat is on the flame icon appears on the display Cool Mode In this mode the thermostat controls the cooling system When the the uni...

Page 9: ...de steps 2 3 Status indicator light does not come on during call for Cooling or Heating Turn status indicator light function on See Config Mode Step 14 Room temperature is not correct Calibrate thermo...

Page 10: ...of compressors Select non heat pump and Electric 1 GAS 7 Auxiliary Delay On Set the time delay in minutes for aux heat to be locked out after a call for second stage Set to 0 minutes 1 0 00 8 Lockout...

Page 11: ...LL357D4 PDS 4 2011 11 Notes...

Page 12: ...e at www marvair com for the latest product literature Detailed dimensional data is available upon request A complete warranty statement can be found in each product s Installation Operation Manual on...

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