SCI ERV-24-HC11 Manual de usuario
User Manual
ER
V
-24-HC11
With FanCycler®
Pipersville, PA 18947 USA
Phone: 215-766 1487 - Fax: 215-766 1493
Cat. P048012
Rev. 2.1 12.04
2
Please read this manual carefully before installation and use.
Index
Operating manual 1
On/Off 1.1
Select modes 1.2
Temperature adjustments 1.3
Locking the thermostat’s buttons 1.4
Programming 2
Thermostat display 2.1
Programming defaults 2.2
Step by step program chart 2.3
Override set temperature 2.4
Hold the program 2.5
3
1. Operating manual
1.1 On/Off button:
• Press the On/Off button to activate the thermostat - The word "ON" will appear in the display
next to the measured temperature.
• Press and hold (4 sec) the On/Off button to deactivate the thermostat - The word "OFF" will
appear in the display.
1.2 Select button
1.2.1 System Mode (Cool, Heat, Cool/Heat, Fan)
• Press the Select button once.
• Use the (+) or (-) buttons to switch between modes:
o Cool –“Cool” will appear on display.
o Heat –“Heat” will appear on display.
o Cool/Heat (Auto change-over) – Cool” and “Heat” will appear on display.
o Fan –“Fan” will appear on display.
4
1.2.2 Fan Mode
• Press the Select button a second time.
• Use the (+) or (-) buttons to switch between fan modes:
o Fan – “Fan” will appear on display.
The fan will work continuously.
o Auto Fan – “Auto Fan” will appear on display.
The fan will work depending on cooling or heating
demand.
• Press the Select button a third time to exit to normal display mode.
The unit will automatically return to normal display mode when no changes are made
within 30 seconds
1.3 Temperature set-point adjustment
In Cool mode
• Press the (+) or (-) buttons - the temperature will flash and “COOL” and
“SET” will appear on display.
• Change the cooling set-point temperature using the (+) or (-) buttons.
• Press the Select button to exit or wait to return to normal display mode.
5
In Heat mode
• Press the (+) or (-) buttons - the temperature will flash and “HEAT” and
“SET” will appear on display.
• Change the heating set-point temperature using the (+) or (-) buttons.
• Press the Select button to exit or wait to return to normal display mode.
In Cool/Heat mode (Auto change-over)
• Press the (+) or (-) buttons - the temperature will flash and “COOL” and
“SET” will appear on display.
• Change the cooling set-point temperature using the (+) or (-) buttons.
• Press the Select button again or wait - the temperature will flash and
“HEAT” and “SET” will appear on display.
• Change the heating set-point temperature using the (+) or (-) buttons.
• Press the Select button again or wait to return to normal display mode.
The thermostat keeps a
minimum differential of at
least 1 degree between the
Heat set-point and the Cool
set-point, with Heat always
being less than Cool.
6
1.4 Locking the Thermostat’s Buttons
Lock the thermostat’s buttons to prevent any unwanted changes made by any
unauthorized person.
Lock the thermostat
• Press the On/Off button to turn the thermostat ON.
• Press and hold (15 sec.) the Select button until “LOC” appears on display.
Unlock the thermostat
• Press and hold (15 sec.) the Select button until “UnLO” appears on display.
• Press the Select button 2 more times to exit to normal display mode
7
2. Programming
The thermostat is 5-1-1 programmable: 5-Monday through Friday, 1-Saturday, and 1-Sunday all
have individual programs.
There are four program periods per day: 1-Wake, 2-Day, 3-Return, 4-Sleep
If you want to operate the thermostat manually - without the program, you can easily disable
programming.
To disable the program, press and hold (5 seconds) the Prog button – the word Program will disappear
from the display. To re-enable the program, press and hold the Prog button again. See Section 2.5
below.
Note: If the thermostat was setup to be Non-Programmable by the installing technician,
contact the installer, or refer to the Technician Settings document for enabling the
Program by the internal DIP switch.
8
Before programming your thermostat you should be familiar with the display of the unit:
2.1 Thermostat Display
1. Temperature digits
The normal display will show the temperature in the
room. When (+) or (-) is pressed, it will flash and
show the set-point for the selected system mode.
2. Days of the week
When setting the program, it will display the period
that you are setting.
Example: When display shows: MON-TUE-WED-
THU-FRI, you are setting the weekdays program.
(The program will repeat on each of these days).
In normal display mode, the actual day of the week will be displayed.
3. Real time clock, AM/PM.
Note: When changing the program, "COOL" or "HEAT" will be displayed in place of
the time to indicate which system mode you are setting the temperature for.
4. Program period (the one currently being adjusted will be indicated):
• Wake 1
st program of day.
• Day 2
nd program of day.
• Return 3
rd program of day.
• Sleep 4
th program of day
5. Set - When changing the temperature set-point, the temperature digits will flash,
and "Set" will appear in the display.
6. ON/OFF - thermostat active or deactivated.
Cool
Heat
Auto
Fan
oF
Program: wake
DayReturnSleep
SuMoTuWeThFrSa
Set
ON
OFF
AM
PM
1
2
3
4
5
6
7
8
9
7. System Modes – Heat: Heating mode; Cool: Cooling mode; if both Heat and
Cool are displayed, that is Auto change-over mode; Fan: Continuous Fan mode.
The current active mode will flash when the equipment is operating.
8. Fan Mode
When the display shows "Auto Fan" - the Fan will operate automatically with
heating and cooling.
When the display shows "Fan" – the Fan will operate continuously.
Normal display
In normal display mode, the display will show:
• Measured temperature in the room
• Thermostat ON or OFF
• Current day of the week
• Current time of day
• Current active program period
• System Mode
• Fan Mode.
2.2 Programming defaults from the factory.
Monday to Friday 1 (Wake) 2 (Day) 3 (Return) 4 (Sleep)
Start time 6:30 AM 8:00 AM 5:30 PM 10:00 PM
Cool Set-point 78°F 85°F 78°F 82°F
Heat Set-point 70°F 62°F 70°F 62°F
Saturday & Sunday 1 (Wake) 2 (Day) 3 (Return) 4 (Sleep)
Start time 7:30 AM 12:30 PM 6:00 PM 11:30 PM
Cool Set-point 76°F 74°F 72°F 78°F
Heat Set-point 70°F 70°F 70°F 65°F
10
Pro
g
rammin
g
Ad
j
ust Clock
Settin
g
s-Hours
Adjust Clock
Settings-Minutes
Adjust Clock -
Day of the week
2
Heat Temp.
1
Program No.
Hour Minutes Cool Temp.
Program No.
Hour Minutes
Wake
Day
Heat Temp.
Cool Temp.
• The following chart will help to simplify making normal adjustments
(System Mode, Fan Mode) and setting the program.
• We recommend that you fill out the chart BEFORE setting the weekly program.
• On the chart, select a cooling and a heating set-point temperature.
Remember to keep a safe differential between Heat and Cool for Auto change-over.
• The display will show the program (weekday, Saturday or Sunday).
• If no key is pressed for 30 seconds, the thermostat will return to normal display mode.
2.3 Step by step program chart.
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