Robertshaw 9401 User`s manual

9401
®
NeW
DIGITAL
NON-PROGRAMMABLE
THERMOSTAT
G
E
O
GAS
ELECTRIC
OIL
1 Heat / 1 Cool
User's Manual
Quick Start
Installation
110-1041
Application
The Robertshaw 9401 is a single-stage thermostat designed to control
24 VAC gas or electric heating and cooling systems or single-stage heat
pump. The 9401 requires the use of a common wire.
Features
• Summer and winter setpoints
• Large back lit display
• Adjustable temperature differential: .5°F to 3.0°F (0.5°C to 1.5°C)
• Compressor short cycle protection
• Accuracy within ±1°
• Zone system compatible as a master thermostat
• Permanent memory retention
• Fahrenheit/Celsius display option
• Adjustable from 45°F to 90°F (7°C - 32°C)
• Quick wire terminal block
• Automatic heating shutdown if temperature exceeds 94°F (34°C)
1
! IMPORTANT SAFETY INFORMATION
WARNING:
• Always turn off power at main fuse or circuit breaker panel before
installing, removing, cleaning, or servicing thermostat.
• Read all the information in this manual before installing 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.
• Do not connect ground to any terminal in this unit.
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).
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.
4. Remove existing thermostat base from wall.
Old Terminal
New Label
M,W,Rh,R5 or 5
Rh
Heat transformer, hot side
Description
V or Rc
Rc
Cool transformer, hot side
C,X, or B
C
24VAC transformer, common side
Y or Y6
Y
Cooling control
H,W, or 4
W
Heating control
F or G
G
Fan control relay
O
O
Cool active reversing valve
B
B
Heat active reversing valve
NOTE: THIS THERMOSTAT REQUIRES A 24V AC COMMON WIRE FOR PROPER OPERATION.
Table 1
2
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 9401 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 HEAT-OFF-COOL in OFF position (Figure 2).
-ON-AUTO switch into AUTO position (Figure 2).
Maple Chase Company
www.maplechase.com
Tech Service: 1-800-445-8299
M-F 7:30 a.m. - 5:30 p.m. CST
MADE IN MEXICO
TM
Item
9555
3. Place
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
1ST and 2ND stages 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.
120-1523
Figure 2
4. Remove the cover using a coin or screwdriver (Figure 3). Set aside.
Figure 3
3
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.
Mounting Holes
GAS
RESET
NON-HP
ELEC
HP
Wiring Opening
Figure 4
7. If mounting on drywall, tap plastic anchors into wall.
NOTE: ENCLOSED PLASTIC ANCHORS DO NOT REQUIRE A
DRILLED HOLE FOR DRYWALL.
8. If mounting on a surface other than drywall, drill the marked holes
using a 3/16" drill bit.
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.
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). Tighten screws.
13. Make sure wire connections are secure.
14. Push excess wire back through opening.
Rh Rc C
W
Label
Y
Y
B
O
G
Figure 5
4
◆ Wiring Diagrams
HEAT ONLY
3-WIRE
SINGLE TRANSFORMER
HEAT/COOL
4-WIRE
SINGLE TRANSFORMER
Factory- Installed
jumper
Factory-Installed
jumper
RH
Transformer
RC
Hot
120 VAC
24 VAC
Heating
Control
W
Cooling
Control
Y
Fan
Control
G
T
H
E
R
M
O
S
T
A
T
RH
Transformer
Hot
120 VAC
RC
24 VAC
Heating
Control
W
Y
Fan
Control
C
G
T
H
E
R
M
O
S
T
A
T
C
HEAT ONLY
2-WIRE
SINGLE TRANSFORMER
COOL ONLY
3-WIRE
SINGLE TRANSFORMER
NOTE: Cut center of factory installed
jumper and bend back.
RH
Transformer
Hot
120 VAC
RC
24 VAC
Heating
Control
W
Y
G
T
H
E
R
M
O
S
T
A
T
RH
Transformer
Hot
120 VAC
RC
24 VAC
W
Cooling
Control
Y
Fan
Control
G
C
T
H
E
R
M
O
S
T
A
T
C
HEAT/COOL
5-WIRE
TWO TRANSFORMER
(HEATING)
Transformer
Hot
RH
24 VAC
120 VAC
RC
Hot
120 VAC
24 VAC
Heating
Control
W
Cooling
Control
Y
Fan
Control
G
(COOLING)
Transformer
T
H
E
R
M
O
S
T
A
T
NOTE: Cut center of
factory installed jumper
and bend back
NOTE: Both transformers
must be in phase.
C
HEAT PUMP WITH
HEAT ACTIVE
REVERSING VALVE
HEAT PUMP WITH
COOL ACTIVE
REVERSING VALVE
Pre-Installed jumper
Pre-Installed jumper
RH
Transformer
Hot
120 VAC
RC
24 VAC
W
Fan
Relay
G
Compressor
Contactor
Y
Reversing
Valve
O
RH
T
H
E
R
M
O
S
T
A
T
Transformer
Hot
120 VAC
RC
24 VAC
W
Fan
Relay
Compressor
Contactor
G
Y
O
Reversing
Valve
B
T
H
E
R
M
O
S
T
A
T
B
C
C
NOTE: Installer must place jumper between
W and Y terminals.
5
NOTE: Installer must place jumper between
W and Y terminals.
TERMINAL LEGEND - 9401
TERM
EQUIPMENT TO CONNECT
REQ?
TERMINAL FUNCTION
Rh
24VAC hot connection
Yes
Rc
24VAC hot connection
Yes
C
24VAC common connection
Yes
W
Heat connection
Yes*
Y
Compressor Connection
Yes*
B
Heat Active Reversing Valve
No
O
Cool Active Reversing Valve
No
G
Indoor fan connection
Yes
For input of 24VAC hot
side of heat transformer
For input of 24VAC hot
side of cool transformer
For input of 24VAC
common side of
transformer
Energizes on a call for
heating
Energizes on a call for
cooling
Energizes when in the
HEAT mode
Energizes when in the
COOL mode
Energizes with Y & W
terminals in electric
mode; or with Y terminal
in gas mode; or with FAN
option switched to the
ON position
d
* This thermostat can be used as a heat only or cool only thermostat therefore it is not always
necessary to use both Y and W.
GAS/ELECTRIC
Switch
ROOM
OFF
GAS
RESET
NON-HP
ELEC
HP
NON-HP/HP
Switch
Figure 6
15. Set the GAS/ELEC switch to either GAS for a gas/oil heating
system or ELEC for an electric heating system (Figure 6).
16. Set the HP/NON-HP switch to either the HP for heat pump or
NON-HP for furnace applications (Figure 6).
17. Replace thermostat cover by snapping into place.
6
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 HEAT-OFF-COOL switch into
the COOL position. The display will read COOL.
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. The snowflake icon will be displayed.
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
5-MINUTE DELAY FOR INSTALLATION, PRESS THE RESET BUTTON.
3. Put the HEAT-OFF-COOL switch into
the OFF position. The air conditioning system
should turn off.
4. Put the HEAT-OFF-COOL switch into
the HEAT position. The display will read HEAT.
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.
The flame icon will be displayed.
6. Put the 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
7. Put the
-ON-AUTO switch into the ON
position. The blower fan should turn on.
The display will show a
8. Put the
and ON.
-ON-AUTO switch into the AUTO
position. The blower fan should turn off.
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.
Fan
Auto: Equipment controls the fan.
On: The fan operates continuously.
Temperature
Heating: The default temperature for heating is 70°F (21°C). To
change the default setpoint, put the system switch in HEAT and
press the or button to adjust the temperature setting up or
down. The display will show SET. The display will return to the
current room temperature three seconds after the last input and
the new setpoint will be saved.
Cooling: The default temperature for cooling is 78°F (25°C). To
change the default setpoint, put the system switch in COOL and
press the or button to adjust the temperature setting up or
down. The display will show SET. The display will return to the
current room temperature three seconds after the last input and
the new setpoint will be saved.
ROOM
OFF
Figure 7
8
◆ Temperature Differential
The temperature differential is factory set at 1.0°F (.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.
◆ Changing Fahrenheit (°F) to Celsius (°C),
and the Temperature Differential
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. Press and hold both the
and button for three seconds. The display will read F or C.
Release buttons. Press the or button to switch the display.
2. After three seconds the display will switch to the differential settings. The display will read SET DIFF.
3. The temperature differential is factory set at 1.0°F (0.5°C). Press the
or button to adjust the differential up or down.
4. Wait three seconds or press
and the display will return to the
original room temperature.
◆ 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 5 seconds of inactivity.
◆ Reset
To reset the thermostat press the RESET button located at the lower left
corner of the base.
ROOM
OFF
GAS
RESET
NON-HP
HP
RESET Switch
9
ELEC
Step 5: Troubleshooting
Symptom
Remedy
Thermostat does not turn on system.
Check wiring (see Installation
section).
Thermostat turns system on and
off too frequently.
Increase temperature differential
(see Changing the Temperature
Differential section).
System fan does not operate
properly.
Move fan option switch to either
gas or electric, to match system
(see Installation section).
Thermostat does not display
proper room temperature.
Check F/C (Fahrenheit/Celsius)
setting. See Changing Fahrenheit
(F) to Celsius (C).
If problems with thermostat cannot be resolved, call:
Technical Support: (800) 445-8299
Monday-Friday 7:30 AM - 5:30 PM CST
10
Two Year Limited Warranty
Climate Controls NA 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 NA recommendations and instructions.
Climate Controls NA 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 NA
Repair or replacement as provided under this warranty is the exclusive
remedy of the consumer. Climate Controls NA 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 NA
Warranty Claims Department
515 S. Promenade
Corona, CA 91719
TM
Climate Controls NA
191 E. North Avenue
Carol Stream, Illinois 60188
United States of America
110 -1041
©2002 Climate Controls NA
11
NOTES
12