Robertshaw 9550 User Manual

Page 1
Application
The Robertshaw 9550 is a single-stage auto changeover thermostat designed to control 24 VAC gas or electric heating and cooling systems or single-stage heat pump. The 9550 requires the use of a common wire.
Features
• Auto changeover [deadband adjustable from 2°F to 8°F (1.0°C - 4.5°C)]
•Large back lit display
• Adjustable temperature differential
• Adjustable fan delay on cooling
• LED indication of system status
• Zone system compatible as a master thermostat
• Battery-free EEPROM memory retention
• Optional temperature limiting settings
• Fahrenheit/Celsius display option
• Gas/electric operation
• Adjustable from 45°F to 90°F (7°C - 32°C)
• Quick wire terminal block
1
DELUXE NON-PROGRAMMABLE THERMOSTAT
9550
ELECTRICEHEAT PUMP
H
GAS
G
®
NeW
1 Heat / 1 Cool with Auto Changeover
User's Manual
Quick Start Installation
W
A
R
R
A
N
T
Y
2
T
W
O
Y
E
A
R
110-1034
Page 2
2
Figure 1
IMPORTANT SAFETY INFORMATION WARNING:
•Always turn off power at the main power source by unscrewing fuse or switching circuit breaker to the off position before installing, removing, cleaning, or servicing thermostat.
• Read all the information in this manual before installing or program­ming this thermostat.
• This is a 24 VAC low-voltage thermostat. Do not install on voltages higher than 30 VAC.
• All wiring must conform to local and national building and electrical codes and ordinances.
• Do not short (jumper) across terminals on the gas valve or at the system control to test installation. This will damage the thermostat and void the warranty.
Step 1: Replacing Existing Thermostat
1. Turn off power to heating and cooling system.
2. Remove cover from old thermostat to expose wires (Figure 1).
3. Disconnect wires one at a time from existing terminals. Use enclosed labels to mark existing wires. Refer to cross references in Table 1 if existing wiring does not directly match the labels.
Old Terminal New Label Description
R, V-VR or VR-R R 24 VAC, Return Y, Y1 or M Y Cooling Control O or R O Cool Active Reversing Valve BBHeat Active Reversing Valve F or G G Fan Control Relay C, X or B C 24 VAC, Transformer Common Side W1 or W W Heating Control
NOTE: THIS THERMOSTAT REQUIRES A 24V COMMON WIRE FOR PROPER OPERATION.
Table 1
!
Page 3
• If you have any questions about cross referencing the old terminal to the new label, reference your equipment installation manual, a licensed contractor, or call Robertshaw Technical Support at (800) 445-8299.
4. Remove existing thermostat base from wall.
Recycling Thermostat
If this thermostat is replacing a thermostat that contains mercury in a sealed tube, do not place your old thermostat in the garbage. Contact your local waste management authority for instructions regarding proper disposal of the thermostat. If you have any ques­tions, call Robertshaw technical support at 1-800-445-8299.
Step 2: Installing Model 9550 Thermostat
NOTE: FOR NEW INSTALLATIONS, MOUNT THERMOSTAT ON
INSIDE WALL, FIVE FEET ABOVE THE FLOOR. DO NOT INSTALL BEHIND A DOOR, IN A CORNER, NEAR AIR VENTS, IN DIRECT SUNLIGHT, OR NEAR ANY HEAT OR STEAM GENERATING FIXTURES. INSTALLATION AT THESE LOCATIONS WILL AFFECT THERMOSTAT OPERATION.
1. Turn power off to the heating and cooling systems.
2. Place AUTO-HEAT-OFF-COOL in OFF position (Figure 2).
3. Place -ON-AUTO switch into AUTO position (Figure 2).
3
Figure 2
SETTING OR CHANGING THE SETPOINT TEMPERATURE:
1.Press or button. Display will show SET and the current temperature setpoint.
2. Press or button to adjust temperature setpoint.
3. After completing the change, the display will return to the current room temperature after a few seconds.
CHANGING THE TEMPERATURE DIFFERENTIAL, DEAD BAND, AND RESIDUAL COOL:
The temperature differentials are factory set at 1˚F and 2˚F for 1STand 2NDstages respectively. The dead band for Auto­changeover is set at 3˚F. To change settings:
1.Press the and buttons at the same time and hold for 1 second. Display will indicate: DIFFERENTIAL 1ST.
2. Press either the or button to adjust the 1st stage differ­ential between 0.5˚F – 3˚F (0.5˚C - 1.5˚C).
3. Either wait five seconds or press the button. The display
will indicate: DIFFERENTIAL 2ND.
4.Press either the or button to adjust 2nd stage differen­tial between 1˚F – 6˚F (1˚C - 3˚C).
5. Either wait five seconds or press the button. The display
will indicate: DEADBAND.
6.Press either the or button to adjust the dead band between 3˚F – 6˚F (1.5˚C - 3˚C).
7.Either wait five seconds or press the button.The fan icon and ON will be displayed.
8. Press either the or button to adjust the Residual Cool fan delay between 0, 30, 60, or 90 seconds.
9.The display will return to the current room temperature after a few seconds.
Item
9555
120-1523
Maple Chase Company www.maplechase.com Tech Service: 1-800-445-8299 M-F 7:30 a.m. - 5:30 p.m. CST
MADEINMEXICO
TM
C
O
O
T
A
L
E
H
F
A
N
Page 4
4. Remove the cover using a coin or screwdriver (Figure 3). Set aside.
5. Place thermostat against the wall at desired location. Make sure wires will feed through opening (Figure 4) on base of thermostat.
6. Mark placement of mounting holes (Figure 4). Set base aside.
7. If mounting on drywall, tap plastic anchors into wall.
NOTE: ENCLOSED PLASTIC ANCHORS DO NOT REQUIRE A
DRILLED HOLE FOR DRYWALL.
8. Drill the marked holes using a 3/16" drill bit if mounting on a sur­face other than drywall.
9. Align base with plastic anchors and feed wires through opening.
10. Secure base to wall with supplied screws.
NOTE: THE THERMOSTAT WILL MOUNT HORIZONTALLY
ON A SINGLE GANG JUNCTION BOX.
11. Strip end of wires 5/16” if needed.
4
Figure 3
Figure 4
Mounting Holes
WYBO G
WIRING OPENING
NON
HP
Page 5
12. Terminal screws are already loose and ready for wire insertion. Insert wires into terminal strip (Figure 5) matching the label to the corresponding terminal (see Wiring Diagrams below). Tighten screws.
13. Make sure wire connections are secure.
14. Push access wire back through opening.
5
Figure 5
Wiring Diagrams for 9550
W
W
Y B
O G
Page 6
15. If using a single stage heat pump system, set switch to HP.
16. Set the GAS/ELEC switch to either GAS for a gas/oil heating
system or ELEC for an electric heating system.
17. A temperature limiting jumper has been included in this thermo-
stat. Cutting this jumper (J3) limits the heating setpoint to no greater than 72°F and the cooling setpoint to no lower than 78°F (Figure 7).
6
Figure 6
TERMINAL LEGEND - 9550
TERM EQUIPMENT TO CONNECT REQ? TERMINAL FUNCTION
C 24VAC common connection Yes For input of 24VAC common
side of transformer
R 24VAC hot connection Yes For input of 24VAC hot side
of transformer
W First stage heat connection Yes* Energizes on a call for
heat
Y Second stage heat connection No Energizes on a call for
cooling
G Indoor fan connection Yes** Energizes with W (ELECTRIC
mode only) and Y or with FAN option switched to the ON position
O Cool active reversing valve No*** Energizes when in the
connection COOL mode
B Heat active reversing valve No*** Energizes when in the
connection HEAT or EM modes
* This thermostat can be used as a heat only or cool only thermostat therefore it is not always
necessary to use both W and Y.
** A heat only gas system typically will not require the G terminal connection unless a separate
indoor blower is installed.
***Most heat pump systems will have a cool active OR
a heat active reversing valve. Use the
appropriate terminal.
Heat Pump Switch
WYBO G
NON HP
J3
GAS/ELECTRIC
Switch
Page 7
7
18. Replace thermostat cover by snapping into place.
19. Turn on power to system. Test thermostat as described in the fol-
lowing section.
Step 3: Testing the Thermostat
WARNING: DO NOT SHORT (JUMPER) ACROSS TERMINALS OF
GAS VALVE OR SYSTEM CONTROL TO TEST OPER­ATION. THIS WILL DAMAGE THE THERMOSTAT AND VOID YOUR WARRANTY.
CAUTION: DO NOT SWITCH SYSTEM TO COOL IF THE TEMPERATURE IS
BELOW 50°F (10°C). THIS CAN DAMAGE THE AIR CONDITION­ING SYSTEM AND CAUSE PERSONAL INJURY.
1. Place the AUTO-HEAT-OFF-COOL switch into
the COOL position.
2. Press the button until the temperature setting
is at least 3 degrees below the room temperature. The air conditioning system should turn on within a few seconds.
NOTE: ONCE THE THERMOSTAT TURNS OFF WHEN IN THE COOL MODE, A
BUILT IN 5-MINUTE DELAY PREVENTS THE SYSTEM FROM TURN­ING ON AGAIN. THIS PROTECTS THE COMPRESSOR. NO ADDI­TIONAL TIME DELAY RELAY IS REQUIRED. TO OVERRIDE THE 5­MINUTE DELAY FOR INSTALLATION, PRESS THE RESET BUTTON.
Cut the J3 jumper
Figure 7
!
to enable temperature limiting
WYB OG
NON HP
Page 8
3. Put the AUTO-HEAT-OFF-COOL switch into
the OFF position. The air conditioning system should turn off.
4. Put the AUTO-HEAT-OFF-COOL switch into
the HEAT position.
5. Press the button until the temperature
setting is at least 3 degrees above room temperature. The heating system should turn on. The fan may not turn on immediately, depending on the fan delay built into the furnace.
6. Put the AUTO-HEAT-OFF-COOL switch into
the OFF position. The heating system should turn off. The fan may continue to run for a short period of time.
7. Put the -ON-AUTO switch into the ON
position. The blower fan should turn on.
8. Put the -ON-AUTO switch into the AUTO
position. The blower fan should turn off.
8
Page 9
9
Step 4: Customizing the Thermostat
Settings
System
Cool: The thermostat controls the cooling. Off: The heating and cooling systems are off. Heat: The thermostat controls the heat. AUTO:The thermostat automatically selects heat or cool depending
on the temperature.
Fan
Auto:Equipment controls the fan. On: The fan operates continuously.
Temperature
The default setpoint temperature for heating is 70°F (21°C), for cool­ing is 78°F (25°C), and for auto is 72°F (22.0°C). After putting the sys­tem switch in heat, cool, or auto, press either the or button to adjust the temperature setting up or down.
The display will return to the current room temperature five seconds after the last input and the new setpoint will be saved.
Temperature Differential and Deadband
The temperature differential is factory set at 1°F (0.5°C). This means that whenever the room temperature changes by one degree Fahrenheit from the temperature setting, the system will turn on. If the system turns on too often, increase the temperature differential.
Although programmed at the same time as the temperature differen­tials, the deadband is used only during the AUTO mode. In the AUTO mode, the thermostat will automatically cycle either the heating or cool­ing system to maintain optimal comfort. The deadband is the minimum allowable temperature which must occur to switch to the opposite mode. For example, if the deadband is set at 3°F (1.5°C)and the setpoint is set at 70°F, the thermostat will switch to cooling mode when the tem­perature reaches 73°F.
NOTE: IF THE TEMPERATURE LIMITING JUMPER J3 IS CUT
(FIGURE 7), THE DEADBAND IS NOT ADJUSTABLE AND IS AUTOMATICALLY SET TO 6°F (3°C).
Figure 8
C
O
O
L
T
A
E
H
F
A
N
Page 10
10
Changing Fahrenheit (F) to Celsius (C),
Temperature Differential, Deadband, and Residual Cool
The temperature differential is factory set at 1°F (0.5°C). The deadband for auto changeover is set at 3°F (1.5°C). To change settings:
1. The thermostat is preset to display the temperature in degrees Fahrenheit (US models) or degrees Celsius (Canadian models). The temperature display can be changed.
2. Press and hold both the and buttons for three seconds. The display will read F or C. Release the buttons. Press the or but­ton to switch the display.
3. After three seconds the display will switch to the differential setting. The display will read DIFFERENTIAL 1st.
4. The temperature differential is factory set at 1°F (0.5°C). Press the
or
to adjust the differential up or down.
5. Either wait three seconds or press the button. The display will indicate: AUTOCHANGE DEADBAND.
6. Press either the or button to adjust the deadband between
2.0°F - 8.0°F (1.0°C - 4.5°C).
7. Either wait five seconds or press the button. The fan icon and ON will be displayed.
8. Press either the or button to adjust the residual cool fan delay between 0, 30, 60, or 90 seconds.
9. The display will return to the original room temperature display after a few seconds.
LED Indicators
The Robertshaw 9550 uses three LED indicators (in addition to icons on the LCD display) to indicate functionality of the thermostat. When illuminated, the right orange LED indicates that the thermostat is calling for heat. The left green LED indicates a call for cool. The middle amber LED indicates the fan is running.
Page 11
Backlit Display
This thermostat is equipped with a backlight to make nighttime tempera­ture adjustments quick and easy. Press the button to activate the backlight. The backlight will turn off after about 15 seconds of inactivity.
Reset
To reset the thermostat to factory preprogrammed conditions, press the RESET button located beneath the lower left corner of the display.
Step 5:Troubleshooting
Symptom Remedy
11
Check wiring (see Installation section).
If problems with thermostat cannot be resolved, call:
Technical Support: (800) 445-8299
Monday-Friday 7:30 AM - 5:30 PM CST
RESET Switch
WYBOG
NON HP
Thermostat turns system on and off too frequently.
Increase temperature differential (see Changing the Temperature Differential section).
System fan does not operate properly.
Thermostat does not display proper room temperature.
Check F/C (Fahrenheit/Celsius) settings (see Changing Fahrenheit (F) to Celsius (C) section).
Move fan option switch to either gas or electric, to match system (see Installation section).
Thermostat does not turn on system.
Page 12
Two Year Limited Warranty
Climate Controls Americas warrants to the original contractor
installer, or to the original consumer user, each new Robertshaw thermo­stat to be free from defects in materials and workmanship under normal use and service for a period of two (2) years from date of purchase. This warranty and our liability does not apply to batteries or merchandise that has been damaged by misuse, neglect, mishandling, alterations, improper installation, or use in a way other than in accordance with Climate
Controls Americas recommendations and instructions.
Climate Controls Americas agrees to repair or replace at its option
any thermostat under warranty provided it is returned within the warranty period, postage prepaid, with proof of the date of purchase. Cost of thermostat removal or reinstallation is not the responsibility of Climate
Controls Americas.
Repair or replacement as provided under this warranty is the exclusive remedy of the consumer. Climate Controls Americas shall not be liable for any incidental or consequential damages for breach of any express or implied warranty on this product, or under any other theory of liability. Except to the extent prohibited by applicable law, any implied warranty of merchantability or fitness for a particular purpose on this product is limited to the duration of this warranty.
Some states do not allow the exclusion or limitation of incidental or consequential damages, or allow limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
For warranty returns, send thermostat, shipping prepaid to:
Invensys Climate Controls Americas
Warranty Claims Department
515 S. Promenade
Corona, CA 91719
©2003 Climate Controls Americas 110-1034
Climate Controls Americas
191 E. North Avenue Carol Stream Illinois 60188 United States of America
12
Loading...