background image

13

 

 PROGRAMMING

 

 TROUBLESHOOTING

Averaging or Weighting 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 x local sensor temperature) + (remote sensor 
weight x 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 x 80) + (4 x 70) / 5 = 72° 
If weight is selected 

A2

, the average temperature of 73° will 

be displayed.
(1 x 80) + (2 x 70) / 3 = 73.3°
If weight is selected

 L1

, the average temperature of 75° will 

be displayed.
(1 x 80) + (1 x 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. 

Dual Fuel Temperature Setpoint

When the thermostat is configured for Heat Pump mode 
and the Dual Fuel feature is selected on, the thermostat can 
monitor the outside temperature using remote sensor F145-
1378 or use software logic to determine when to switch to gas 
heat and shut down the compressor. This eliminates the need 
for a fossil fuel kit. 
The user selectable temperature is called the dual fuel 
temperature setpoint, 

dF

 and is set in the Installer/

Configuration menu, items 33 or 34. With outdoor remote 
sensor installed and enabled, the dual fuel temperature 
setpoint (menu item 33) can be set to a temperature of -5° 
through 50°. When outdoor remote sensor is not installed, 
a software logic based dual fuel number (menu item 34) 
from 01 to 09 can be selected. A higher temperature or dual 
fuel setting will provide a smaller stage separation between 
the heat pump and Aux to give more comfort. A lower 
temperature or number will provide a larger stage separation 
for more economy.
After the dual fuel temperature setpoint is set and 

 is 

pressed, a delay, 

Cd

, can be set for compressor shutdown 

after the auxiliary stage is energized. This delay can be set 
from 0 seconds to 99 seconds to minimize the time that the 
system may blow cooler air until the alternate source of heat 
comes on. Default setting for delay is 60. When setting the 
delay, if the   or   keys are held depressed, the setpoint 
will increase or decrease at the rate of one degree every half 
second for the first three seconds and double the speed after 
three seconds.

Blower Balance Point for Heating

Requires DHM connection from thermostat to heat pump 
system. Air to air heat pumps use a fast fan speed to circulate 
warm air for first stage heating. As outdoor temperatures 
drop, the heat pump produces less heat and a high fan speed 
makes the air from the ducts feel cooler. Blower Balance 
Point allows you to select an outdoor temperature to slow 
the fan speed so the air from the duct feels warmer. Select 
an outdoor temperature where the air from the ducts starts 
to feel cool (Installer Configuration Menu item 37). When 
the outdoor temperature drops to the selected temperature, 
the thermostat will slow the fan speed so the outlet air feels 
warmer.

Comfort Alert Codes

The Comfort Alert diagnostics product monitors the air con-
ditioning outdoor systems with single phase Copeland Scroll 
compressors. Abnormal system and electrical conditions are 
indicated by flashing ALERT codes on the yellow LED on the 
Comfort Alert module. The flash codes are transmitted to the 
thermostat by the Comfort Alert Thermostat interface module. 
The Comfort Alert compatible thermostat displays 

“Call For 

Service” 

that flashes at the same rate as the yellow LED on 

the Comfort Alert module. 

Comfort Alert Codes

1 Flash

Long run time

2 Flashs

System pressure trip

3 Flashs

Short cycling

4 Flashs

Locked rotor

5 Flashs

Open circuit

6 Flashs

Open start circuit

7 Flashs

Open run circuit

8 Flashs

Welded Contactor

9 Flashs

Low voltage

Содержание 1F95-1277

Страница 1: ...tain mercury However this product may replace a product that contains mercury Mercury and products containing mercury must not be discarded in household trash Do not touch any spilled mercury Wearing non absorbent gloves clean up any spilled mercury and place in a sealed container For proper disposal of a product containing mercury or a sealed container of spilled mercury place it in a suitable sh...

Страница 2: ... The Power Stealing Switches Fig 1 should be left in the On position for most systems The information in the following table details the thermostat power method and switch options WARNING Thermostat installation and all components of the control system shall conform to Class II circuits per the NEC code INSTALLATION Figure 1 Thermostat Base Multi Stage 1F95 1277 2 AA Batteries Power Stealing Switc...

Страница 3: ... 1 compressor when auxiliary heat is energized Heat mode 3rd stage Emergency Mode 1st stage Note Dual Fuel option de energizes Heat mode stages 1 and 2 both compressors when auxiliary heat is energized Heat mode 4th stage Emergency Mode 2nd stage Note Dual Fuel option de energizes Heat mode stages 1 and 2 both compressors when auxiliary heat is energized Heat mode 3rd stage Emergency Mode 2nd stag...

Страница 4: ...7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 19 20 2 1 11 10 15 16 9 8 17 13 12 4 18 Savings display indicates the feature is active 15 Remote indicates that the indoor remote temperature sensor is being accessed Outdoor Remote indi cates the outdoor remote temperature sensor is being accessed 16 Display time remote...

Страница 5: ...Management Recovery Not available if 4 is 0 8 FA Heat Cr SL Selects Adjustable Anticipation cycle rate Heat 9 FA Cool Cr SL Selects Adjustable Anticipation cycle rate Cool 10 FA Cr AU Em SL Selects Adjustable Anticipation cycle rate auxiliary This item is only to appear if HP1 or HP2 is selected above 11 OFF SC On Select stage cycle completion On or Off 12 OFF CL On Selects Compressor Lockout 13 O...

Страница 6: ...s fast cycle FA Cr in all modes Heat Cool Em To change to slow cycling SL Cr press touch keys or toggle between FA SL The cycle rates are below Mode Med Slow Heat 0 6 F 1 5 F Cool 1 2 F 1 7 F Heat Pump 1 2 F 1 7 F Emer Heat 0 6 F 1 7 F 11 Stage Cycle Completion SC Selecting SC ON will cause the thermostat to complete heating and or cooling cycles on the highest stage engaged during the cycle Therm...

Страница 7: ...sh on the thermostat Refer to Com fort Alert Codes in Troubleshooting section If a Comfort Alert module is not connected or to disable active protec tion turn this feature OFF If a Comfort Alert module is connected and this feature is turned OFF the thermostat will still receive and flash the fault codes from the Comfort Alert module but the active protection will not be enabled to protect the com...

Страница 8: ...heat and shut down the compressor When the outdoor temperature falls below the selected tem perature the gas heat will begin Default is 35 but can be set in the range of 5 to 50 A lower setting will delay the start of gas heat allowing cooler temperature in the home INSTALLER CONFIGURATION MENU 35 Select Dual Fuel Setting With DF selected On and no outdoor sensor select the dF setting from 01 09 F...

Страница 9: ...he SYSTEM key to select Cool Thermostat controls only the cooling system Off Heating and Cooling systems are off Heat Thermostat controls only the heating system Em Setting is available only when the thermostat is configured in HP1 or HP2 mode Auto Auto Changeover is used in areas where both heating and cooling may be required on the same day AUTO allows the thermostat to automatically select heat...

Страница 10: ... will disappear and the day s you copied to will be on 6 If you wish 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 the next page then Enter the Heating Program 1 Press the Menu key and then press Set Schedule Press SYSTEM key to select Heat in the system switch area indicating the act...

Страница 11: ...equired Wake Up Morning Leave For Work Day Return Home Evening Go To Bed Night Heating Program 6 00 AM 70 F 8 00 AM 62 F 5 00 PM 70 F 10 00 PM 62 F Cooling Program 6 00 AM 75 F 8 00 AM 83 F 5 00 PM 75 F 10 00 PM 78 F Programmable Fan Option In the Set Schedule mode the Fan key is used to select the fan operation during a program period The default state of the Fan key is FAN Auto fan runs during a...

Страница 12: ... on the terminal block allow connection of the remote sensor The thermostat must have 24 VAC Common connection to terminal C for the remote sensor to operate The remote sensor can be enabled or disabled in the Installer Configuration menu item 29 When remote sensor Remote is selected Off factory default no remote sensor is enabled When remote sensor is selected On the next step is to select the re...

Страница 13: ... the dual fuel temperature setpoint menu item 33 can be set to a temperature of 5 through 50 When outdoor remote sensor is not installed a software logic based dual fuel number menu item 34 from 01 to 09 can be selected A higher temperature or dual fuel setting will provide a smaller stage separation between the heat pump and Aux to give more comfort A lower temperature or number will provide a la...

Страница 14: ... FAN Switch set to Fan ON Check each wire connection to verify they are not shorted or touching together No bare wire should stick out from under terminal block Try resetting the thermostat as de scribed above If the condition persists the manufacturer of your system or service person can instruct you on how to test the Heat Cool system for correct operation If the system operates correctly replac...

Отзывы: