background image

 

5  

LL357D4 PDS, 4.2011

3.   2nd Stage Temperature Differential (1°F to 5°F) (0 .5°C to 2 .5°C) 

Set the number of degrees between when stage 1 turns on and when stage 2 turns on. Marvair 
recommends 2ºF.

 

Press the Up or Down button to select differential. 

 

Press the Right button to advance to the next screen.

4.   Staged Off Outputs 

Select whether the outputs for heating and cooling are staged off independently or are satisfied 
simultaneously. Select “1”, outputs staged independently.

 

1 = outputs staged off independently

 

0 = outputs off simultaneously

 

Press the Up or Down button to select. 

 

Press the Right button to advance to the next screen.

5.   Minimum Deadband (1°F to 9°F) (1°C to 5°C) 

Set the minimum separation between heat setpoint and cool setpoint in Auto Changeover Mode. 
Marvair recommends 3ºF.

 

Press the Up or Down button to set deadband value. 

 

Press the Right button to advance to the next screen.

6.   System – Set for heat pump, non-Heat Pump (air conditioner), reversing valve operation and 

number of compressors in your system. Set 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 button to advance to the next screen.

7.   Auxiliary Delay ON – (0-30 minutes) 

Set the delay time in minutes for auxiliary heat to be locked out after a call for second stage. This 
extra savings feature is used to temporarily lock out auxiliary heat devices, allowing just heat 
pump to try to satisfy heat call. Set to 0 minutes.

 

Press the Up or Down button to select. 

 

Press the Right button to advance to the next screen.

8.   Lockout (0-8°, COOL-HEAT) 

Select the number of degrees set temperature can be changed during keypad lockout. COOL-
HEAT lockout allows adjustment of the set temperatures to the maximum heat set temperature 
selected in Step 9 and minimum cool set temperature selected in Step 10.

 

Note: The mode cannot be changed when the thermostat is locked.

 

Press the Up or Down button to select. 

 

Press the Right button to advance to the next screen.

Choose System

Reversing 

Valve Active

Number of Compressors

or Compressor Stages

Type of

Heat

Heat Pump

HP

O

1

HP

b

1

HP

O

2

HP

b

2

Non-Heat
Pump

Heat

Gas

Heat

Electric

Содержание Marvair LL357D4

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Отзывы: