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IOM 1178-1 / Page 15 of 16

Programming

Averaging or Weighing Remote Sensors

The thermostat will weight or average the temperature of the 
indoor remote sensor with the local sensor in the thermostat 
for each program period. The averaging will be active only 
when the local sensor and the indoor remote sensor are both 

functional and enabled in the Installer/Configuration menu.
When the thermostat is in the Set Schedule mode, the weight 

of the indoor sensor will be shown in the current temperature 
digits of the display. The weight will show as A2 (average and 

default), H4 (high) or L1 (low). Pressing the and keys at the 

same time will change the weight for the program period. The 

weight of the thermostat sensor is fixed.

In normal operation of the thermostat, the current temperature 
displayed will be the weighted average of the local sensor and 
the remote sensor using the formula (local sensor weight × 
local sensor temperature) + (remote sensor weight × remote 
sensor temperature) / (local sensor remote sensor 
weight).

Example:

 Local sensor temperature is 80° and the remote 

sensor is 70°.

If weight is selected H4, the averaged temperature of 72° will 

be displayed.

(1 × 80) + (4 × 70) / 5 = 72°

If weight is selected A2, the average temperature of 73° will 
be displayed.

(1 × 80) + (2 × 70) / 3 = 73.3°

If weight is selected L1, the average temperature of 75° will 
be displayed.

(1 × 80) + (1 × 70) / 2 = 75°

The example shows that the weight selected would prioritize 
the overall averaged temperature between the two sensors.

The high weight selection caused the remote sensor to have 

a higher influence in the calculated temperature average than 

the local sensor and the low weight selection caused the 

remote sensor to have less influence.

Summary of Contents for 910121750

Page 1: ...And Configuration Items 6 Installer Configuration Menu 7 Operating Your Thermostat 10 Heating 10 Cooling Dehumidifier 11 Choose The Fan Setting Auto or On 11 Choose The System Setting Cool Off Heat Au...

Page 2: ...izontal Enfinity W CCH CCW MicroTech III Unit Controller Yes Vertical W VFC VFW Vertical Stacked W VHC Console W MHC MHW Horizontal Vertical SmartSource 1 Stage W GSH GSV MicroTech III SmartSource Uni...

Page 3: ...rews Lev eling is for appearance only and will not affect thermostat operation 5 Connect wires to terminal block on base using appropri ate wiring schematic 6 Push excess wire into wall and plug hole...

Page 4: ...ower for heating 24V power for heating C 24V common 24V common Y Compressor cool 1st stage Compressor cool 1st stage Y2 No output Compressor cool 2nd stage W1 Compressor heat 1st stage Compressor heat...

Page 5: ...h the following heat pump systems Heat Pump Type 1 HP1 Single stage compressor system with electric backup Heat Pump Type 2 HP2 2 stage compressor system with electric backup Note After wiring see Ins...

Page 6: ...iguration menu to change selections 9 Hold Until indicates the time when a temporary hold period will end 10 Hours and Days displays during steps in installer configuration 11 The words Hold At are di...

Page 7: ...4 On ds OFF Selects Daylight Saving Time calculation 15 On Heat AS OFF Selects Automatic Schedule for comfort temperature programming heat mode Not available if 4 is 0 16 On Cool AS OFF Selects Automa...

Page 8: ...ostat compressor time delay is activated it will flash the set point for up to five minutes 10 Select Continuous Display Lighting dL In low lighting conditions display backlight improves the display c...

Page 9: ...ss to advance the menu Three security settings are available in this menu item Use the or keys to select the lockout desired Lockout selections are Keypad Lockout and L Total Lockout Total Lockout loc...

Page 10: ...32 33 Change UV Lamp This feature allows the thermostat to display the words Change UV Lamp Call for Service of UV bulb after a set time of UV bulb operation This is a reminder to maintain your UV sys...

Page 11: ...ling may be required on the same day AUTO allows the thermostat to automatically select heating or cooling depending on the indoor temperature and the selected heat and cool temperatures When using AU...

Page 12: ...h to copy this same program into other days press Copy and repeat steps 3 4 and 5 7 Press Run Schedule to return to normal operation Fill in the blank schedule on page 14 then Enter the Heating Progra...

Page 13: ...d with the energy saving set tings shown in the table below for all days of the week If this program suits your needs simply set the thermostat clock and press the RUN key The Table 4 shows the factor...

Page 14: ...24 VAC Common connection to terminal C for the remote sensor to operate The remote sen sor can be enabled or disabled in the Installer Configuration menu item 29 When remote sensor Remote is selected...

Page 15: ...he thermostat the current temperature displayed will be the weighted average of the local sensor and the remote sensor using the formula local sensor weight local sensor temperature remote sensor weig...

Page 16: ...he heating is operating correctly No Cool 1 Cooling system requires service or thermostat requires replacement Same as diagnostic for No Heat condition except set the thermostat to COOL and lower the...

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