Carrier 50QE900-511WS Owner`s manual

50QE900
Aquazone™ Water Source Heat Pump
Commercial 5-1-1 Day Programmable Thermostat
Owner’s Manual
Part Number 50QE900-511WS
IMPORTANT: Read entire instructions before programming the thermostat.
GENERAL
The Aquazone commercial, programmable thermostats are
wall-mounted, low-voltage thermostats which maintain room
temperature by controlling the operation of an HVAC (heating,
cooling and ventilation) system. Separate heating and cooling
set points and auto-changeover capability allow occupied and
unoccupied programming schedules for energy savings.
All thermostats allow up to 3 occupied and one unoccupied
time/temperature setting to be programmed per 24-hr period.
Each thermostat stores programs for 3 daily schedules
(Saturday, Sunday, and Monday through Friday). Batteries are
not required. During power interruption the internal
NEVERLOST™ memory stores programs for an unlimited
time.
set points. The UP ARROW and DOWN ARROW buttons are
also used in Programming mode.
OVERRIDE BUTTON — The Override button is used to
force the thermostat from Unoccupied mode into the Occupied
1 mode comfort settings. The Override period will be set at
30 minutes. The thermostat will then return to Unoccupied
mode. To increase the amount of time in Override mode, press
the Override button again. Thirty minutes of override time will
be added for each time the Override button is pressed up to a
maximum of 4 hours. After the 4-hour limit has been reached,
press the Override button again to cancel Override mode.
While in Override mode, the Override icon and the Occupied 1 icon will be displayed on the thermostat. The time of
day and the minutes remaining in Override mode will alternate
on the thermostat display.
CONFIGURATION
Thermostat Display — The thermostat display is located in the center of the thermostat. See Fig. 1. The following
information can be displayed on the screen:
• mode (OFF, HEAT, COOL, AUTO, or PROGRAM ON)
• fan setting (FAN ON or blank)
• override indication
• room temperature
• desired temperature
• time of day
• day of the week
• schedule period (Occupied 1, 2, or 3; or Unoccupied)
• setup indicator (Programming mode)
• lock indicator
• start/stop indicator (schedule period Programming mode)
Heat or Cool Indicator — A Heat or Cool indicator is
located on the bottom middle cover of the thermostat. See
Fig. 2. The light will be red if the thermostat is in Heating
mode. The light will be green if the thermostat is in Cooling
mode.
Thermostat Front Panel Buttons — The thermostat has buttons on the front cover which are used to raise or
lower the desired set point and override the current program.
See Fig. 2.
SET POINT BUTTONS — The UP ARROW and DOWN
ARROW buttons will raise or lower the current desired temperature set point. If the thermostat is in AUTO mode, pressing
the UP ARROW or DOWN ARROW button will adjust both
the heating and cooling set points. Pressing the UP ARROW or
DOWN ARROW button in Cooling mode will adjust only the
cooling set points. Pressing the UP ARROW or DOWN
ARROW button in Heating mode will adjust only the heating
Fig. 1 — Thermostat Display
Mo
DISPLAY
SCREEN
MODE
BUTTON
Am
COOL
AUTO
HEAT
OVERRIDE
BUTTON
INDICATOR
LIGHT
DOWN
ARROW
BUTTON
UP
ARROW
BUTTON
Fig. 2 — Thermostat Front Cover
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 535-00109
Printed in U.S.A.
Form 50QE-2SO
Pg 1
6-03
Replaces: New
Book 1 4
Tab 5a 5a
The set points are adjustable with the UP ARROW and
DOWN ARROW keys during Override mode.
NOTE: If the thermostat is in Occupied mode and the Override
button is pressed, the thermostat will go into Unoccupied mode
immediately. The thermostat will remain in Unoccupied mode
until the next Occupied start time.
KEYPAD LOCK — The thermostat has a keypad lockout feature which will not acknowledge front panel buttons until the
lockout sequence is entered. To disable or lock the keypad,
press and hold the Mode button. While holding down the Mode
button, press the UP and DOWN ARROW buttons simultaneously. The ‘‘Locked’’ icon will appear on the display.
The thermostat is unlocked by performing the same procedure. Press and hold the Mode button. While holding down the
Mode button, press the UP and DOWN ARROW buttons
simultaneously. The ‘‘Locked’’ icon will be removed from the
display.
MODE BUTTON OPERATION — The Mode button selects
the operating mode of the thermostat. If OFF is selected, the
thermostat will not enter Heating or Cooling mode. If HEAT is
selected, the thermostat will only enter Heating mode (if the
room temperature is below the heating set point). If COOL is
selected, the thermostat will only enter Cooling mode (if the
room temperature is above the cooling set point). If AUTO is
selected, the thermostat will enter Heating or Cooling mode
based on the room temperature and the heating and cooling set
points. If PROGRAM ON is selected, the stored schedule is
enabled and the thermostat will follow the Occupied and Unoccupied schedules stored in its memory.
Auto-Changeover — When the thermostat mode is set to
AUTO, the thermostat will provide automatic changeover from
Heating to Cooling mode and Cooling to Heating mode when
required. The thermostat will automatically switch to maintain
the desired temperature setting. The thermostat does not need
to be manually changed from heating to cooling or cooling to
heating operation.
NOTE: It is recommended that auto-changeover mode not be
used if the outdoor temperature is consistently lower than 50 F
(10 C) or greater than 80 F (27 C). In these cases, select Heating or Cooling mode only.
Fig. 3 — Setting the Clock
set point and a cooling set point. The unoccupied time period is
active whenever an occupied time period is not active. Fill in
Table 1 on page 3 as an aid to programming the daily schedules.
PROGRAMMING MODE — To program the daily schedules, perform the following procedure:
1. Enter Programming mode by pressing and holding the
Mode and UP ARROW buttons. The Occupied 1 annunciator will appear on the thermostat display. See Fig. 4.
Use the UP ARROW and DOWN ARROW buttons to
set the maximum number of Occupied periods available.
The thermostat can be set to 1, 2, or 3. After the number
of Occupied periods has been selected, press the Mode
button.
2. The cooling set point for Occupied 1 will be displayed.
Use the UP ARROW and DOWN ARROW buttons to
raise or lower the cooling set point until the desired temperature is shown. The range of acceptable values is 35 to
99 F (1 to 37 C). Press the Mode button to continue. See
Fig. 4.
3. The heating set point for Occupied 1 will be displayed.
Use the UP ARROW and DOWN ARROW buttons to
raise or lower the heating set point until the desired temperature is shown. The range of acceptable values is 35 to
99 F (1 to 37 C). Press the Mode button to continue. See
Fig. 4.
4. The cooling set point for Unoccupied will be displayed.
Use the UP ARROW and DOWN ARROW buttons to
raise or lower the cooling set point until the desired temperature is shown. The range of acceptable values is 35 to
99 F (1 to 37 C) or ‘‘OF’’ (no unoccupied cooling). To
configure to ‘‘OF,’’ press UP ARROW when display is
showing ‘‘99.’’ Press the Mode button to continue.
5. The heating set point for Unoccupied will be displayed.
Use the UP ARROW and DOWN ARROW buttons to
raise or lower the heating set point until the desired temperature is shown. The range of acceptable values is 35 to
99 F (1 to 37 C) or ‘‘OF’’ (no unoccupied heating). To
configure to ‘‘OF,’’ press DOWN ARROW when display
is showing ‘‘35.’’ Press the Mode button to continue.
6. The day of the week will be shown. Use the UP ARROW
and DOWN ARROW buttons to change the day of the
week until the desired starting day is shown. Possible
choices are Mo-Fr (Monday through Friday), Sa (Saturday), and Su (Sunday). Press the Mode button when the
desired day is shown.
7. The Start Time for Occupied 1 for the chosen day will be
displayed. Use the UP ARROW and DOWN ARROW
buttons to raise or lower the time until the desired Start
Time is shown. Press the Mode button to continue. See
Fig. 5.
Set Clock — The Set Clock function allows the user to
change the time and day displayed on the thermostat. Press and
hold the Mode and Override buttons for 2 seconds to enter Set
Clock mode. See Fig. 3. The current time will blink on and off.
Press the UP ARROW or DOWN ARROW button until the
correct time is shown. Hold down the buttons to quickly move
through the time display. The AM and PM annunciators will
automatically change. To scroll through by hours only, press
and hold the Override button while pressing the UP or DOWN
ARROW button. To ensure the schedules are properly followed, make sure that AM or PM is correct for the time
chosen. When the correct time is shown, press the Mode button
to modify the day of the week. The current day will blink on
and off. Press the UP ARROW or DOWN ARROW button until the correct day is shown. Press and hold the Mode and Override buttons for 2 seconds again to exit the Set Clock mode.
Programming Thermostat Schedules —
Before programming the thermostat, plan the thermostat daily
schedule. The schedule is divided into 3 daily schedules
(Saturday, Sunday, and Monday through Friday). The daily
schedule for Monday through Friday is the same. Each day can
have 2 (Occupied 1, Unoccupied), 3 (Occupied 1, Occupied 2,
Unoccupied), or 4 (Occupied 1, Occupied 2, Occupied 3, Unoccupied) time periods. Each occupied time period has a start
time, stop time, heating set point, and cooling set point. The
Occupied 1 and Unoccupied temperature set points are the
same for each day. The unoccupied time period has a heating
2
for 24 hours and occupied schedule 2 comes on from 1
to 3 PM, the set points from Occupied 2 are in effect
from 1 to 3 PM.
OVERRIDING THE SCHEDULE — The schedule can be
overridden during operation by pressing the UP or DOWN
ARROW buttons to change the desired temperature. The thermostat will use the new set point until the next scheduled time
period starts.
8. The Stop Time for Occupied 1 for the chosen day will be
displayed. Use the UP ARROW and DOWN ARROW
buttons to raise or lower the time until the desired Stop
Time is shown. Press the Mode button.
9. The On/Off icon will be displayed. Use the UP ARROW
to turn the Occupied 1 period ON for this day. Use the
DOWN ARROW to turn the Occupied 1 period OFF for
this day.
10. If the Occupied 2 and/or Occupied 3 time periods were
selected in Step 1, they will need to be configured. Set the
cooling set point, heating set point, start time, stop time,
and on/off configuration for Occupied 2 and 3 time periods for that day (Sa, Su, Mo-Fr). If the Occupied 2 and 3
time periods were not selected in Step 1, skip to Step 11.
Press the Mode button to continue.
11. The program schedule will move forward to the next
day (Sa, Su, Mo-Fr). Repeat Steps 7 to 10 for that day
schedule.
12. The program will continue to cycle through the 3 schedules (Sa, Su, Mo-Fr) and repeating Steps 7 to 10. Press
the Mode and UP ARROW buttons at the same time to
exit Programming mode.
NOTE: The thermostat will continue to follow the schedule until a new one is entered.
• If only one occupied schedule is selected, the Occupied
2 and 3 schedules are skipped.
• If the start time is set later in the day than the stop time,
the program will run from midnight of that day to the
stop time and then from the start time to midnight.
• If the same start and stop times are programmed for an
occupancy schedule, the thermostat will be in Occupied
mode for 24 hours.
• If one occupied period starts or stops within another
occupied period, the lower numbered schedule has
priority. For example, if schedule Occupied 3 is running
Fig. 4 — Setting Occupied 1 Set Points
Fig. 5 — Start Time Display
Table 1 — Daily Schedule Planner
DAY
OF THE
WEEK
Occupied 1
Start / Stop / Heat / Cool*
SCHEDULE
Occupied 2
Start / Stop / Heat / Cool
Occupied 3
Start / Stop / Heat / Cool
Unoccupied
Heat / Cool*
MondayFriday
/
/
/
/
/
/
/
/
/
/
Saturday
/
/
/
/
/
/
/
/
/
/
Sunday
/
/
/
/
/
/
/
/
/
/
*The heat and cool temperature set points for Occupied 1 and Unoccupied are the same for each day.
NOTE: The cooling temperature set point must be higher than the heating temperature set point.
3
OPERATION
point is equal to or greater than the set point plus the deadband
plus 2 degrees.
The Mode button selects the operating mode of the thermostat. If OFF is selected, the thermostat will not enter Heating or
Cooling mode. If HEAT is selected, the thermostat will only
enter Heating mode (if the room temperature is below the heating set point). If COOL is selected, the thermostat will only enter Cooling mode (if the room temperature is above the cooling
set point). If AUTO is selected, the thermostat will enter Heating or Cooling mode based on the room temperature and the
heating and cooling set points. If PROGRAM ON is selected,
the stored schedule is enabled and the thermostat will follow
the Occupied and Unoccupied schedules stored in its memory.
Clock Backup — In the event of a power loss, the
thermostat will keep time for a minimum of 48 hours without
external power or batteries.
Fan Operation — If Fan On is selected, the fan will run
continuously during occupied schedule (except when Mode is
switched to OFF). The fan will be off during unoccupied
schedule except during heating or cooling operation.
If Fan On is not selected, the fan will only operate during
heating or cooling operation.
Emergency Heat — Emergency heat is available only
for heat pump applications. To turn on emergency heat, press
and hold the Override button. While holding the Override button, press the UP button. An ‘‘EH’’ will be displayed. During
emergency heat, the fan will operate and the second stage of
heat will be energized (locking out the first stage compressor).
To exit emergency heat, press and hold the Override button.
While holding the Override button, press the UP button. During emergency heat, only OFF and HEAT modes are available.
Auto-Changeover — When the thermostat mode is set
to AUTO, the thermostat will provide automatic changeover
from Heating to Cooling mode and Cooling to Heating mode
when required. The thermostat will automatically switch to
maintain the desired temperature setting. The thermostat does
not need to be manually changed from heating to cooling or
cooling to heating operation.
Two-Stage Operation — The second stage of heat or
cool is turned on when the first stage has been on for a minimum of 2 minutes and the temperature differential from the set
4
5
6
Copyright 2003 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 535-00109
Printed in U.S.A.
Form 50QE-2SO
Pg 8
6-03
Replaces: New
Book 1 4
Tab 5a 5a