Transcript
T7200D,E Series 2000 Commercial Microelectronic Thermostats INSTALLATION INSTRUCTIONS
APPLICATION
INSTALLATION
The T7200D,E Thermostats provide electronic control of 24 Vac commercial single-zone heating, ventilating and air conditioning (HVAC) equipment. The T7200 is field configurable for automatic or manual changeover between heating and cooling. The system and fan selections are made by keyboard entry. All T7200 Thermostats require a common wire to supply power.
When Installing this Product…
RECYCLING NOTICE
If this control is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash. Contact your local waste management authority for instructions regarding recycling and the proper disposal of the old thermostat.
1. Read these instructions carefully. Failure to follow the instructions can damage the product or cause a hazardous condition. 2. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application. 3. Installer must be a trained, experienced service technician. 4. After completing installation, use these instructions to check out the product operation.
Location Install the thermostat about 5 ft (1.5m) above the floor in an area with good air circulation at average temperature. See Fig. 1.
YES NO
NO 5 FEET (1.5 METERS)
NO
M4823A
Fig. 1. Typical location of thermostat.
® U.S. Registered Trademark Copyright © 1998 Honeywell Inc. •
• All Rights Reserved
X-XX UL
62-0128-2
T7200D,E SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTATS
Do not install the thermostat where it can be affected by: — drafts, or dead spots behind doors and in corners. — hot or cold air from ducts. — radiant heat from sun or appliances. — concealed pipes and chimneys. — unheated (uncooled) areas such as an outside wall behind the thermostat.
CAUTION
Electrical Shock Hazard. Power source can cause electrical shock. Disconnect power before wiring to prevent electrical shock or equipment damage. 1. Loosen the terminal screws on the wallplate and connect the system wires. See Fig. 3.
IMPORTANT Use 18-gauge, solid-conductor color-coded thermostat cable for proper wiring. If using 18-gauge stranded wire, do not use more than ten wires. Do not use larger than 18-gauge wire.
Mounting Wallplate The wallplate mounts horizontally on the wall or on a 2 in. x 4 in. wiring box. Position the wallplate horizontally on the wall or on a 2 in. x 4 in. wiring box. 1. Position and level the wallplate (for appearance only). The thermostat functions properly even when not level. 2. Use a pencil to mark the mounting holes. See Fig. 2. 3. Remove the wallplate from the wall and drill two 3/16 inch (4.8 mm) holes in the wall (if drywall) as marked. For firmer material such as plaster or wood, drill two 7/32 inch (5.5 mm) holes. Gently tap anchors (provided) into the drilled holes until flush with the wall. 4. Position the wallplate over the holes, pulling wires through the wiring opening. 5. Loosely insert the mounting screws into the holes. 6. Tighten mounting screws.
2. Securely tighten each terminal screw. 3. Push excess wire back into the hole. 4. Plug the hole with nonflammable insulation to prevent drafts from affecting the thermostat.
WALL
WIRES THROUGH WALL
FOR WRAPAROUND INSERTION STRIP 7/16 IN. (11 MM).
FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM). M4826
Fig. 3. Proper wiring technique.
WALL ANCHORS (2)
THERMOSTAT X
Y1
G
W1
RH
RC 2
HEATING RELAY OR VALVE COIL
COMPRESSOR CONTACTOR
MOUNTING HOLES
FAN RELAY
MOUNTING SCREWS
1 M10237
L1 (HOT)
LEDS
L2
Fig. 2. Mounting the wallplate.
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
JUMPER RC AND RH FOR SINGLE TRANSFORMER SYSTEMS. M4942A
WIRING WALLPLATE
Fig. 4. Typical hookup of T7200D in single-stage heating and cooling conventional system.
All wiring must comply with local electrical codes and ordinances. Follow equipment manufacturer wiring instructions when available. Refer to Fig. 4 and 5 for typical hookups. A letter code is located near each terminal for identification.
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T7200D,E SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTATS
THERMOSTAT X
Y
G
O
• • • • •
R
COOL CHANGEOVER VALVE
COMPRESSOR CONTACTOR
override the program temperatures, display present setting, set system and fan operation, configure Installer Setup, check Installer System Test.
See Fig. 7 for thermostat key information. A. ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE OR WALLPLATE.
FAN RELAY 1 L1 (HOT) L2 1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M4943A
Fig. 5. Typical hookup of T7200E in single-stage heat pump system.
B. PRESS LOWER EDGE OF CASE TO LATCH.
Mounting Thermostat on Wallplate The thermostat mounts on the wallplate after it is installed. 1. Engage the tabs at the top of the thermostat and wallplate. See Fig. 6. 2. Press the lower edge of the case to latch. NOTE: To remove the thermostat from the wall, first pull out at the bottom of the thermostat; then remove the top.
SETTINGS
M4824A
Fig. 6. Mounting thermostat on wallplate.
Using Thermostat Keys The thermostat keys are used to: • set current time and day, • program times and setpoints for heating and cooling, ENTER UNOCCUPIED PROGRAM MODE ENTER OCCUPIED PROGRAM MODE
AM
Room
Mon Occupied System Heat
RETURNS TO NORMAL OPERATIONS
Fan Auto
Set Program
SET OVERRIDE TEMPERATURE OFFSET AND ACTIVATE TEMPORARY OVERRIDE
ENTER HOLD MODE
SET UNOCCUPIED TEMPERATURE SETPOINTS AND SCROLLS THROUGH INSTALLER SETUP AND SYSTEM TEST
SET OCCUPIED TEMPERATURE SETPOINTS
SET CURRENT DAY OR PROGRAM DAY
Set Temperature
Run Program
Occupied Start Time
Unoccupied Start Time
Day
Temporary Occupied
Set Current Day/Time
Clear Start Time
Copy
Occupied Temp
Unoccupied Temp
Change Time/Temp
INCREASE TEMPERATURE OR TIME SETTING
Heat/Cool Settings
Continuous Unoccupied
System
Fan
SELECT SYSTEM OPERATION COPY ONE PROGRAMMED DAY TO ANOTHER DAY
SET CURRENT DAY AND TIME CLEAR PROGRAM PERIOD
DECREASE TEMPERATURE OR TIME SETTING
SELECT FAN OPERATION
CHANGE BETWEEN HEATING AND COOLING SETPOINTS AND SCROLLS BACKWARDS THROUGH INSTALLER SETUP NUMBERS AND SYSTEM TEST M10233A
Fig. 7. Thermostat key locations and descriptions.
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T7200D,E SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTATS
—
To advance to the next Installer Setup number, press the Unoccupied Temp key. — To return to a previous Installer Setup number, press the Heat/Cool Settings key. — To change a setting, use the increase ▲ or decrease ▼ key. — To exit the Installer Setup, press the Run Program key. The Installer Setup is automatically exited if no key presses are made for four minutes.
Setting System and Fan (select models) The system default setting is Heat. The fan default is set so the fan operates continuously in the Occupied and Recovery modes and with the heating or cooling equipment in the Unoccupied mode. Use the System and Fan keys to change the settings. The system settings are: Heat: Thermostat controls the heating. Off: Both the heating and cooling are off. Cool: Thermostat controls the cooling. Auto: Thermostat automatically changes between heating and cooling operation depending on the indoor temperature.
Set Program Start Time Set Day/Time Temporary Setting Enrg Sav Em Ht AM Aux Ht Room PM Comm %Humid MonTueWedThuFriSatSun Remote Heat Cool UnOccupied 12 Override In Recovery Auto Only Duct System Fan LoMedHi On Auto Em Heat OffCool Auto Wait
The fan settings are: On: Fan operates continuously. Auto: Equipment controls the fan in the Unoccupied mode. The Intelligent Fan™ operation (Installer Setup number 17) offers three choices for the fan operation in Occupied mode: — fan turns on only when there is a call for heating or cooling, — fan operates continuously in Occupied mode, — fan is on continuously in Occupied and recovery modes.
M4916
Fig. 8. LED display of all segments.
Setting Temperature Refer to Table 1 for the default temperature setpoints. See Owners Guide, form number 63-4356, for complete instructions on changing the setpoints.
INSTALLER SETUP NUMBER DISPLAY (COLUMN 2 OF TABLE 2)
Table 1. Default Temperature Setpoints. Control
Occupied
Unoccupied
Heating
70°F (21°C)
55°F (13°C)
Cooling
78°F (25.5°C)
90°F (32°C)
M10238B
Fig. 9. Installer Setup number and setting display. Installer Setup numbers are listed in Table 2.
CAUTION
Possible Equipment Damage. Fan must be running when system is operating. Configure heat pump and electric heat systems in Installer Setup 2 to prevent equipment damage caused by the system running without the fan.
INSTALLER SETUP NOTE: For most applications, the thermostat factorysettings do not need to be changed. Review the factory-settings in Table 2 and if no changes are necessary, go to the Installer System Test section.
IMPORTANT Only configurable numbers are shown on the device. Example: If the thermostat does not have a system key, Installer Setup Number 12 will not be displayed. Review Table 2 factory settings and mark any desired changes in the Actual Setting column. When Installer Setup is complete, review the settings to confirm that they match the system.
The Installer Setup is used by the installer to customize the thermostat to specific systems. Installer Setup numbers are listed in Table 2. The table includes all the configuration options available. A combination of key presses are required to use the Installer Setup feature. — To enter the Installer Setup mode, press and hold the Heat/Cool Settings key while pressing both the increase ▲ and decrease ▼ keys until the first number is displayed. All display segments appear for approximately three seconds before the number is displayed. See Fig. 8 and 9.
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FACTORY SETTING OR OTHER CHOICE DISPLAY (COLUMN 3 OR 5 OF TABLE 2)
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T7200D,E SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTATS
Table 2. Thermostat Installer Setup Options.
Select
Installer Setup Number (Press Unoccupied Factory Setting Temp key to change) Display Description —
Other Choices (Press ▲ or ▼ key to change) Display
—
—
Description
Actual Setting
—
—
Not used.
1
Fan operation a (T7200D only).
2
0
Conventional applica- 1 tions where equipment controls fan operation in heat mode.
Electric heat applications where thermostat controls fan operation in heat mode.
Degree temperature display.
14
0
Temperature is displayed in °F.
Temperature is displayed in °C.
Intelligent Fan™ 17 operation.
2
0 or 1 Fan operates continuously in Occupied and Recovery mode. Fan operates with call for heating or cooling in Unoccupied mode.
0—Fan only operates with calls for heating or cooling in Occupied and Unoccupied modes. 1—Fan operates continuously in Occupied mode. Fan operates with calls for heating or cooling in Unoccupied mode.
Keypad lockout level (keypad lockout is enabled and disabled by dip switch 1 on thermostat back).
25
0
No lockout.
1 or 2
1—Lockout all keys on thermostat except system and fan settings, temporary setpoint; clock and day adjustments. 2—Lockout all keys except set Current Day/Time, increase ▲ and decrease ▼ keys. 3—Lockout all keys except Temporary Occupied, Set Current Day/Time (for clock, day adjustments).
O/B Operation b (T7200E only).
29
0
0—Energize in Cool mode.
1
1—Energize in Heat Mode.
Minimum offtime for the compressor.
33
4
4-minute minimum off-time for the compressor.
0, 1, 2, 3 Minimum number of minutes or 5 (0 thru 5) the compressor will be off between calls for the compressor.
Temperature display adjustment.
37
0
No difference in displayed temperature and actual room temperature.
1 thru 6
a Number 2 must be set to 1 to extend fan operation. b Some models may not have this feature.Table 2.
1
1—Display adjusts to 1°F (0.6°C) higher than actual room temperature. 2—Display adjusts to 2°F (1.1°C) higher than actual room temperature. 3—Display adjusts to 3°F (1.7°C) higher than actual room temperature. 4—Display adjusts to 1°F (0.6°C) lower than actual room temperature. 5—Display adjusts to 2°F (1.1°C) lower than actual room temperature. 6—Display adjusts to 3°F (1.7°C) lower than actual room temperature.
(continued)
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T7200D,E SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTATS
Table 2. Thermostat Installer Setup Options (Continued).
Select
Installer Setup Number (Press Unoccupied Factory Setting Temp key to change) Display Description
Other Choices (Press ▲ or ▼ key to change) Display
Minimum off38 times in heating.
4
4—4-minute minimum off-time.
40 Installer Setup lockout (keypad lockout is enabled and disabled by dip switch 1 on back of thermostat).
0
0—No Installer Setup 1 lockout.
IMPORTANT Review the settings to confirm that they match the system. Press Run Program to exit the Installer Setup. Set the current day and time immediately.
Actual Setting
Description
0, 1, 2, 3, Minimum number of minutes or 5 (0 thru 5) the heating equipment will be off between calls for heat. 1—Installer Setup lockout activated.
4. Press Run Program. Run Program
AM Set Program
Set Temperature
Run Program
Occupied Start Time
Unoccupied Start Time
Day
Temporary Occupied
Set Current Day/Time
Clear Start Time
Copy
Continous Unoccupied
Occupied Temp
Unoccupied Temp
Room
Change Time/Temp
Heat/Cool Settings
System
Fan
Mon Occupied 1 System Heat
Fan Auto
M4954A
Setting Current Day and Time 1. Press Set Current Day/Time.
INSTALLER SYSTEM TEST
NOTE: On initial power up or after an extended power loss, 1:00 pm flashes on the LCD until a key is pressed.
Use the Installer System Test to check the thermostat configurations and operation. Refer to Table 3 for a list of the available system tests.
Set Day/Time
Set Current Day/Time
Set Program Run Program
Occupied Start Time
Unoccupied Start Time
Temporary Occupied
Set Current Day/Time
Clear Start Time
Set Temperature Occupied Temp
Day
Table 3. Tests Available in Installer System Test.
PM
Change Time/Temp
Unoccupied Temp
Mon
Heat/Cool Settings
Copy
Continous Unoccupied
System
Test Number
Fan
M4951B
2. Press Day until the current day is displayed. NOTE: Sun=Sunday, Mon=Monday, Tue=Tuesday, Wed=Wednesday, Thu=Thursday, Fri=Friday, Sat=Saturday.
Set Day/Time
Day Set Program
Set Temperature
Run Program
Occupied Start Time
Unoccupied Start Time
Day
Temporary Occupied
Set Current Day/Time
Clear Start Time
Copy
Continous Unoccupied
Occupied Temp
Unoccupied Temp
PM
Change Time/Temp
Tue
Heat/Cool Settings
System
Fan
M4952B
3. Press increase ▲ or decrease ▼ until the current time is displayed.
Set Temperature
Occupied Start Time
Unoccupied Start Time
Day
Set Current Day/Time
Clear Start Time
Copy
Continous Unoccupied
Occupied Temp
Unoccupied Temp
Heat/Cool Settings
System
Tue
40 to 49
Fan equipment can be turned on and off
60 0 to 60 19
Keyboard keys test
70 to 79
Thermostat information including date code, software versions and subbase identification are displayed
Fan
Press and hold the increase ▲ and decrease ▼ keys, at the same time, until 10 appears. All segments of the LCD are displayed for three seconds before 10 appears. See Fig. 10 and 11.
M4953B
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Cooling equipment can be turned on and off
Possible Equipment Damage. Equipment damage can result if compressor is cycled too quickly. The minimum off-time for compressors is bypassed during the Installer System Test.
PM
Change Time/Temp
30 to 39
CAUTION
Set Day/Time Set Program Run Program
Heating equipment can be turned on and off
To start the system test:
NOTE: Tapping the Set Current Day/Time changes the time in one hour increments.
Temporary Occupied
System Test Description
10 to 19
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T7200D,E SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTATS
NOTE: If a duct temperature sensor is installed, the duct temperature is also displayed. Refer to Table 4 and Thermostat Information section for directions and results of the specific system tests. NOTE: Press Run Program to exit the system test. The system test times out after four minutes if there are no additional key presses.
TEST NUMBER
M10257A
Fig. 11. Test number display.
Set Program Start Time Set Day/Time Temporary Setting Enrg Sav Em Ht AM Aux Ht Room PM Comm %Humid Remote Heat Cool MonTueWedThuFriSatSun UnOccupied 12 Override In Recovery Auto Only Duct System Fan LoMedHi On Auto Em Heat OffCool Auto Wait M4916
Fig. 10. LCD display of all segments. Table 4. Installer System Test Options. Test Key to Press Number Heating Equipment Test 10 Heat/Cool Settings ▲ 11 ▼ 10 Cooling Equipment Test 30 Heat/Cool Settings ▲ 31 ▼ 30 Fan Equipment Test 40 Heat/Cool Settings ▲ 41 ▼ 40 Key Operation Test 60 2 Heat/Cool Settings 60 0 Unoccupied Temp 60 1 Occupied Temp ▲ ▼ Clear Start Time Day Copy Unoccupied Start TIme System (select models) Fan (select models) Set Current Day/Time Run Program Temporary Occupied Occupied Start Time Continuous Unoccupied
60 60 60 60 60 60
3 5 7 8 9 10
Description Enter heating equipment test. Heat turns on. The system fan is also energized. Heat and system fan turn off. Change from heating to cooling equipment test. Cool and system fan turn on. Cool and system fan turn off. Change from cooling to fan equipment test. Fan turns on. Fan turns off. Change from fan to key operation test. Unoccupied Temp test number is displayed. Occupied Temp test number is displayed. Increase test number is displayed. Decrease test number is displayed. Clear Start Time test number is displayed. Day test number is displayed. Copy test number is displayed. Unoccupied Start Time test number is displayed.
60 11
System test number is displayed.
60 60 60 60 60 60
Fan test number is displayed. Set Current Day/Time test number is displayed. Run Program test number is displayed. Temporary Occupied test number is displayed. Occupied Start Time test number is displayed. Continuous Unoccupied test number is displayed.
12 14 15 16 17 19
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T7200D,E SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTATS
5. Press the increase ▲ key again to display the EEPROM identification code. (Example: 314 = EEPROM ID 314).
Thermostat Information 1. Press the Heat/Cool Settings key to access the thermostat information.
M4933A
M4934
6. Press the increase ▲ key again to display the wallplate identification code. (Example: HP = heat pump wallplate).
2. Press the increase ▲ key to display the production date code. The first two large digits are the month and the third digit is the last digit of the year. (Example: 036 = March 1996).
M10290 M4931
7. Press Run Program to exit the system test. The system test times out after four minutes without any key presses.
3. Press the increase ▲ key again to display the software identification code. (Example: 02 = software ID code 2).
Setting Keypad Lockout Switch The dip switch 1 on the back of the thermostat activates the Installer Setup lockout feature. The switch must be set to the ON position (up) to activate the lockout feature. See Fig. 12. The factory setting is off (down). Remove the thermostat from the wallplate and set the switch to ON if keypad lockout is desired. The level of lockout is determined by the Installer Setup number 40.
M4932A
4. Press the increase ▲ key again to display the software revision number. (Example: 001 = revision number 1).
ON 1 2
1
2
M10229
1 DIP 1 IS ON 2 DIP 2 IS NOT USED. BACK OF THERMOSTAT
M10235
Fig. 12. Set Installer Setup lockout dip switch 1 on back of thermostat.
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T7200D,E SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTATS
TROUBLESHOOTING GUIDE Symptom
Possible Cause
Display does not turn on.
No power to thermostat.
• Check that C terminal is connected to the system transformer. • Check for 24 Vac between C and R terminals. — If missing 24 Vac: — check if the circuit breaker is tripped; if so, reset the circuit breaker. — check if the system fuse is blown; if so, replace the fuse. — check if the power switch on the HVAC equipment is in the Off position; if so, set to the On position. — check wiring between thermostat and HVAC equipment and replace any broken wires and tighten any loose connections. — If 24 Vac is present, proceed with troubleshooting.
Temperature display is incorrect.
Room temperature display has been reconfigured.
Enter Installer Setup number 37 and reconfigure the display.
Thermostat is configured for °F or °C display.
Enter Installer Setup number 14 and reconfigure the display.
Bad thermostat location.
Action
Relocate the thermostat.
Temperature settings Upper or lower temperature will not change. limits were reached. (Example: Cannot set heating higher or cooling lower.)
Check the temperature setpoints: • Heating limits are 40°F to 90°F (7°C to 31°C). • Cooling limits are 45°F to 99°F (9°C to 37°C).
Unable to configure Installer Setup.
Installer Setup is locked out.
Reset the dip switch 1 on the back of the thermostat to enable keypad.
Temperature settings change from original setting.
Heating and cooling setpoints • Check that the heating setpoint is lower than the cooling setpoint. are set too close together. There is a deadband in automatic changeover thermostat models. Example: cool setpoint = 72, deadband = 3, heat setpoint = 68, changing heat setpoint to 70 automatically changes the cool setpoint to 73.
Room temperature is out of control.
Remote temperature sensing is not working.
Checkout all remote sensors.
Heating does not turn on.
No power to the thermostat.
• Check that C terminal is connected to the system transformer. • Check for 24 Vac between C and R terminals. — If missing 24 Vac: — check if the circuit breaker is tripped; if so, reset the circuit breaker. — check if the system fuse is blown; if so, replace the fuse. — check if the system switch at the equipment is in the Off position; if so, set to On position. — check wiring between thermostat and HVAC equipment and replace any broken wires and tighten any loose connections. — If 24 Vac is present, proceed with troubleshooting.
Thermostat minimum off-time • Wait up to five minutes for the system to respond. is activated and wait indicator • Enter Installer Setup number 38. Reconfigure minimum offis displayed. time (if required). System selection is not set to Heat.
Set system selection to Heat.
(continued)
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T7200D,E SERIES 2000 COMMERCIAL MICROELECTRONIC THERMOSTATS
Troubleshooting Guide (continued). Symptom Cooling does not turn on.
Possible Cause No power to the thermostat.
Action • Check that C terminal is connected to the system transformer • Check for 24 Vac between C and R or RC and Y terminals. — If missing 24 Vac: — check if the circuit breaker is tripped; if so, reset the circuit breaker. — check if the system fuse is blown; if so, replace the fuse. — check if the system switch at the equipment is in the Off position; if so, set to the On position. — check wiring between thermostat and HVAC equipment and replace any broken wires and tighten any loose connections. — If 24 Vac is present, proceed with troubleshooting.
Thermostat minimum off-time • Wait up to five minutes for the system to respond. is activated and wait indicator • Enter Installer Setup number 33. Reconfigure minimum offis displayed. time (if required).
System on indicator (flame = heat, snowflake = cool) is displayed, but no warm or cool air is coming from the registers.
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System selection is not set to Cool.
Set system selection to Cool.
Conventional heating equipment turns on the fan when the furnace has warmed up to a setpoint.
Wait one minute after the on indicator lights and then check the registers.
Heating or cooling equipment Verify operation of heating or cooling equipment in system is not operating. test.
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By using this Honeywell literature, you agree that Honeywell will have no liability for any damages arising out of your use or modification to, the literature. You will defend and indemnify Honeywell, its affiliates and subsidiaries, from and against any liability, cost, or damages, including attorneys’ fees, arising out of, or resulting from, any modification to the literature by you.
Home and Building Control Honeywell 1985 Douglas Drive North Minneapolis, MN 55422-4386
62-0128—2 J.S. Rev. 12-98
Home and Building Control Honeywell Limited/Honeywell Limitée 35 Dynamic Drive Scarborough, Ontario M1V 4Z9
12
www.honeywell.com/yourhome
