Honeywell W8665A, W8665E User Manual

Page 1
W8665A,E
RF Receiver Module
INSTALLATION INSTRUCTIONS

APPLICATION

The W8665A,E RF Receiver Module (RM) provides 24 Vac control of HVAC equipment when used with a T8665A Chronotherm® IV Wireless Programmable Thermostat. The W8665A can be used with 1H/1C
Table 1. W8665 Description.
Model Application Stages Zones Comments
W8665A Conventional gas, oil or
W8665E Conventional gas, oil or
a
TZ-3 can work with up to 30 zones. Must use multiple W8665E Receiver Modules.
b
TZ-4 can work with up to 32 zones. Must use multiple W8665E Receiver Modules.
electric systems.
electric systems.
Single or multi-stage conventional or heat pump systems.
1H/1C One Use with T8665A Wireless
1H/1C Up to three Use with T8665A Wireless
Up to 2H/2C Use with T8665A Wireless
1H/1C or up to 3H/2C

INSTALLATION

CAUTION
Equipment Damage Hazard. Do not mount W8665 inside HVAC equipment.
Do not mount on metal surfaces. Mount only on wall.
single-zone conventional applications. The W8665E can be used with up to three zones when used with a Honeywell EMM-3 Electronic MiniZone™ Panel, EMM-3U Universal Electronic MiniZone™ Panel, TZ-3 TotalZone® Control Panel or TZ-4 TotalZone® Zone Control Panel. See Table 1.
Thermostat.
Thermostats. Use with EMM-3 Electronic MiniZone™ Panel
Thermostats. Use with EMM-3U Universal Electronic MiniZone™ Panel.
Use with T8665A Wireless Thermostats. Use with TZ-3 TotalZone™ Zone
Control Panel TotalZone® Zone Control Panel
1. Mount the thermostats in each zone of the living
space using the installation instructions provided with each thermostat.
2. Mount the dampers in the ductwork using the
installation instructions provided with each damper.
3. Mount the W8665 RF Receiver Module near the
HVAC equipment on a wall. See Fig. 1.
4. Level the W8665 for appearance only.
a
or TZ-4
b
.
® U.S. Registered Trademark Copyright © 2003 Honeywell • • All Rights Reserved
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Page 2
W8665A,E RF RECEIVER MODULE
5
A
RETURN
AIR
W866
ELEC TR
O N I C A
IR CLEAN
E
HIGH EFFICIENCY IR CLEANER
R
FURNACE
OR BOILER
WATER HEATER
M20162
Fig. 1. W8665 mounting location

WIRING

All wiring must comply with local electric codes and ordinances. See Fig. 2 through 16 wiring diagrams for specific applications. Refer to Tables 2 and 3 for terminal designations.
CAUTION
Voltage Hazard. Can cause electrical shock or equipment damage.
Disconnect power before beginning installation.

Wiring the W8665A

Connect the RF Receiver Module to the equipment loads. See Fig. 2 through 6 and Table 2.
Table 2. W8665A Terminal Designations.
Ter mi nal
Designation Function
R 24 Vac transformer hot.
C 24 Vac transformer common.
RZ 24 Vac system transformer.
Y Stage 1 cool.
W Stage 1 heat.
GFan
Powers RF receiver module.
Powers RF receiver module.
Factory installed jumper between R and RZ terminals. Use RZ as a convenience terminal, as desired.

Wiring the W8665E

Connect the RF Receiver Module zones to the appropriate thermostat zone connections on the EMM-3 Electronic MiniZone™ Panel, EMM-3U Universal Electronic MiniZone™ Panel, TZ-3 TotalZone ™ Zone Control Panel or TZ-4 TotalZone® Zone Control Panel. See Fig. 7 through 16 and Table 3.
Table 3. W8665E Terminal Designations.
Ter mi nal
Designation Function
R 24 Vac transformer hot.
C 24 Vac transformer common.
RZ 24 Vac system transformer.
RZ 24 Vac system transformer.
RZ 24 Vac system transformer.
Zone 1 Y Stage 1 cool.
Zone 1 W Stage 1 heat.
Zone 1 G Fan
Zone 2 Y Stage 1 cool.
Zone 2 W Stage 1 heat.
Zone 2 G Fan
Zone 3 Y Stage 1 cool.
Zone 3 W Stage 1 heat.
Zone 3 G Fan
Powers RF receiver module.
Powers RF receiver module.
The three RZ terminals are internally connected. Connect RZ to Zone 1 R terminal on zone panel, as desired. (Not required.)
The three RZ terminals are internally connected. Connect RZ to Zone 2 R terminal on zone panel, as desired. (Not required.)
The three RZ terminals are internally connected. Connect RZ to Zone 3 R terminal on zone panel, as desired. (Not required.)
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Page 3
W8665A,E RF RECEIVER MODULE
C
3
T8665A
THERMOSTAT
COMM
ZONE 1 W8665A
LED LED
LED STATES:
COMM: RAPIDLY FLASHING GREEN – RECEIVING INFORMATION FROM THERMOSTAT. GREEN OFF – STANDBY, READY TO RECEIVE INFORMATION. ZONE: RED ON – SYSTEM (HEAT, COOL OR FAN) IS ON. RED OFF – SYSTEM (HEAT, COOL OR FAN) IS OFF. FLASHING RED – ERROR. NOT RECEIVING SIGNAL FROM THERMOSTAT. RAPIDLY FLASHING RED – RECEIVER IN SET-UP MODE.
DIP SWITCH SETTINGS:
OFF: NOT SET-UP TO RECEIVE INFORMATION FROM A THERMOSTAT. ON: READY TO RECEIVE INFORMATION FROM THERMOSTAT AFTER
SET-UP IS COMPLETE.
SET-UP:
MOVE DIP SWITCH TO ON POSITION AND MAKE THERMOSTAT CALL FOR FAN. NOTE: ALL OTHER THERMOSTATS MUST BE OFF (NOT CALLING) DURING SET-UP.
COOL
RELAY
ZONE 1
YWG
HEAT
RELAY
FAN
RELAY
RCRZ
ZONE 1 ZONE 2 ZONE 3
1
ON
L2
1
FACTORY INSTALLED JUMPER.
L1 (HOT)
Fig. 2. Connecting the W8665A RF Receiver Module to the equipment.
M20163
T8665A
THERMOSTAT
COMM
LED
LED STATES:
COMM: RAPIDLY FLASHING GREEN – RECEIVING INFORMATION FROM THERMOSTAT. GREEN OFF – STANDBY, READY TO RECEIVE INFORMATION. ZONE: RED ON – SYSTEM (HEAT, COOL OR FAN) IS ON. RED OFF – SYSTEM (HEAT, COOL OR FAN) IS OFF. FLASHING RED – ERROR. NOT RECEIVING SIGNAL FROM THERMOSTAT. RAPIDLY FLASHING RED – RECEIVER IN SET-UP MODE.
DIP SWITCH SETTINGS:
OFF: NOT SET-UP TO RECEIVE INFORMATION FROM A THERMOSTAT. ON: READY TO RECEIVE INFORMATION FROM THERMOSTAT AFTER SET-UP IS COMPLETE.
SET-UP:
MOVE DIP SWITCH TO ON POSITION AND MAKE THERMOSTAT CALL FOR FAN. NOTE: ALL OTHER THERMOSTATS MUST BE OFF (NOT CALLING) DURING SET-UP.
YW
COOL RELAY
1
FACTORY INSTALLED JUMPER.
ZONE 2
FAN
RELAY
ZONE 2
YW
ZONE 3
LED
LED
ZONE 1 ZONE 2 ZONE 3
ZONE 3
G
G
YW
1
R C RZ RZ
RZ
ZONE 1 W8665E
LED
ZONE 1
G
HEAT
RELAY
ON
L2 L1 (HOT)
M1975
Fig. 3. Connecting the W8665E RF Receiver Module to the equipment in a one-zone application.
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Page 4
W8665A,E RF RECEIVER MODULE
2 1
W8665A
WY G
RC
RZ
1
T
TV
Z
G
1
L1
2
L2
1
FACTORY INSTALLED JUMPER.
B1
BURNER
B2
C1
C2
LINE VOLTAGE CIRCULATOR
L8124E,G,L
Fig. 4. Single zone hot water heat using an L8124E, G, L Aquastat.
WY G
W8665A
R8222
G
T
T (TV)
1
2
1
FACTORY INSTALLED JUMPER.
M20681
RZ
RC
1
C R
L L
B1
BURNER
B2
C1
C2
L8124A,B,C,M
LINE VOLTAGE CIRCULATOR
M20682A
Fig. 5. Single zone hot water heat using an L8124A,B,C,M or L8148 Aquastat, an R8222 relay and a transformer.
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Page 5
WY G
2 1
W8665A,E RF RECEIVER MODULE
RC
RZ
1
W8665A
FAN
RELAY
COOLING
R8222
T (TV)
T
L8124/L8148
Fig. 6. Single-zone hot water heat with cooling using an L8124 or L8148 Aquastat, an R8222 relay and a
CONTACTOR
G
1
2
B1
BURNER
B2
C1
C2
transformer.
1
FACTORY INSTALLED JUMPER.
LINE VOLTAGE CIRCULATOR
C R
L L
M20683
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Page 6
W8665A,E RF RECEIVER MODULE
B
A
T8665A ZONE 1
THERMOSTAT
COMM
ZONE 1 ZONE 2 W8665E
LED LED LEDLED
LED STATES:
COMM: RAPIDLY FLASHING GREEN – RECEIVING INFORMATION FROM THERMOSTAT. GREEN OFF – STANDBY, READY TO RECEIVE INFORMATION. ZONE: RED ON – SYSTEM (HEAT, COOL OR FAN) IS ON. RED OFF – SYSTEM (HEAT, COOL OR FAN) IS OFF. FLASHING RED – ERROR. NOT RECEIVING SIGNAL FROM THERMOSTAT. RAPIDLY FLASHING RED – RECEIVER IN SET-UP MODE.
DIP SWITCH SETTINGS:
OFF: NOT SET-UP TO RECEIVE INFORMATION FROM A THERMOSTAT. ON: READY TO RECEIVE INFORMATION FROM THERMOSTAT AFTER
SET-UP IS COMPLETE.
SET-UP:
MOVE DIP SWITCH TO ON POSITION AND MAKE THERMOSTAT CALL FOR FAN. NOTE: ALL OTHER THERMOSTATS MUST BE OFF (NOT CALLING) DURING SET-UP.
ZONE 1
YWG
M1 M4 M6 C R Y W G
EMM-3
1
FACTORY INSTALLED JUMPER. THE THREE RZ TERMINALS ARE INTERNALLY CONNECTED.
M1 M4 M6 C R Y W G M1 M4 M6 C R Y W G
Fig. 7. Connecting the W8665E RF Zone™ Panel to the EMM-3 MiniZone™ Panel to control 1H/1C with up three
T8665A ZONE 2
THERMOSTAT
ZONE 3
ZONE 2
YWG
ZONE 3
YWG
thermostat zone connections.
T8665A ZONE 3
THERMOSTAT
ON
ZONE 1 ZONE 2 ZONE 3
R C RZ RZ RZ
1
24V, 40 V A TRANSFORMER
R C
R
C
M20164
ZONE 1
YWG
W8665E
R C E W1 Y1 G W2 Y2 O B L
EMM-3U
1
FACTORY INSTALLED JUMPER. THE THREE RZ TERMINALS ARE INTERNALLY CONNECTED.
2
LEAVE O/B JUMPER DISCONNECTED ON EMM-3U BOARD.
Fig. 8. Connecting the W8665E RF Zone™ Panel to the EMM-3U Zone Control Panel to operate up to 2H/2C with
2
up to three thermostat zone connections.
ZONE 2
YWG
R C E W1 Y1 G W2 Y2 O B L2R C E W1 Y1 G W2 Y2 O B L
ZONE 3
YWG
R C RZ RZ RZ
1
2
TRANSFORMER
R C
24V, 40 VA
RC
M20571
69-1630-1 6
Page 7
B
W8665E
W2 L G Y R W M6M4M1
ZONE 1
YWG
W2 L G Y R W M6M4M1 W2 L G Y R W M6M4M1
ZONE 2
YWG
TZ-3
1
FACTORY INSTALLED JUMPER. THE THREE RZ TERMINALS ARE INTERNALLY CONNECTED.
ZONE 3
YWG
W8665A,E RF RECEIVER MODULE
R C RZ RZ RZ
1
OC OC TR2 TR1
24V , 40 VA TRANSFORMER
CR
M20165
Fig. 9. Connecting the W8665E RF Zone™ Panel to the TZ-3 TotalZone® Zone Control Panel to operate up to
ZONE 1
YWG
W8665E
ZONE 1
YWG
W8665E
W1/ W3/
C R E Y1 G O/B Y2 W2 AUX L M6 M4 M1
2
TZ-4
1
FACTORY INSTALLED JUMPER. THE THREE RZ TERMINALS ARE INTERNALLY CONNECTED.
2
LEAVE O/B JUMPER DISCONNECTED ON TZ-4 BOARD.
Fig. 10. Connecting the W8665E RF Zone™ Panel to the TZ-4 TotalZone® Zone Control Panel to operate up to
3H/2C with up to three thermostat zone connections.
ZONE 2
YWG
ZONE 2
YWG
W1/ W3/
C R E Y1 G O/B Y2 W2 AUX L M6 M4 M1
ZONE 3
YWG
ZONE 3
YWG
2
R C RZ RZ RZ
1
R C RZ RZ RZ
1
W1/ W3/
C R E Y1 G O/B Y2 W2 AUX L M6 M4 M1
2
3H/2C with up to three thermostat zone connections.
W1/ W3/
C R E Y1 G O/B Y2 W2 AUX L M6 M4 M1
PANEL
2
R
C T1 T2
DAMPER
M20572A
XFRM
XFRM
7 69-1630-1
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W8665A,E RF RECEIVER MODULE
M20686A
2 1
M20687A
2 1
WYG WYG WY GRCRZRZRZ
1
W8665E
L8148 / L8124
T
T (TV)
END SWITCH
TH
TR
TH-TR
V8043 V8043
1
REMOVE FACTORY INSTALLED JUMPER.
END SWITCH
TH
TH-TR
END SWITCH
TH-TR
TH
V8043
TR
C R
L L
TR
Fig. 11. Zoned hot water heat using V8043F zone valves, an L8148/L8124 Aquastat and a transformer.
W8665E
L8148 / L8124
WYG WYG WY GRCRZRZRZ
FAN
COOLING
CONTACTOR
RELAY
1
T
T (TV)
END SWITCH
TH
TR
TH-TR
V8043F V8043F
1
REMOVE FACTORY INSTALLED JUMPER.
Fig. 12. Zoned hot water heat and single-zone cooling using V8043F Zone Valves, and L8148/L8124 Aquastat
69-1630-1 8
END SWITCH
TH
TR
TH-TR
and a transformer.
END SWITCH
TH
TH-TR
V8043F
TR
C R
L L
Page 9
W8665E
2 1
A
2 1
WYG WYG WY G
W8665A,E RF RECEIVER MODULE
R C RZ RZ
1
RZ
V8043E
2
3
T
T (TV)
L8148 / L8124
1
FACTORY INSTALLED JUMPER.
2
CONNECT V8043E YELLOW LEADWIRE TO W8665E.
3
CONNECT V8043E RED LEADWIRES TO L8148/L8124.
V8043E V8043E
2
3
2
3
C R
L L
M20688
Fig. 13. Zoned hot water heat using V8043E Zone Valves, an L8148/L8124 Aquastat and a transformer.
RZ
R C RZ RZ
1
2
3
C R
L L
M20689
W8665E
V8043E
2
3
T
T (TV)
L8148 / L8124
WYG WYG WY G
FAN
COOLING
CONTACTOR
1
FACTORY INSTALLED JUMPER.
2
CONNECT V8043E YELLOW LEADWIRE TO W8665E.
3
CONNECT V8043E RED LEADWIRES TO L8148/L8124.
RELAY
V8043E V8043E
2
3
Fig. 14. Zoned hot water heat and single-zone cooling using V8043E Zone Valves, an L8148/L8124 Aquastat
and a transformer.
9 69-1630-1
Page 10
W8665A,E RF RECEIVER MODULE
2 1
2 1
WYG WYG WY G
W8665E
RCRZRZ
1
RZ
R8222
T
T (TV)
L8148 / L8124
CIRCULATING
PUMP
Fig. 15. Zoned hot water heat with circulating pumps using R8222 Relays, an L8148/L8124 Aquastat and a
WYG WYG WY G
R8222 R8222
CIRCULATING
PUMP
1
FACTORY INSTALLED JUMPER.
transformer.
CIRCULATING
PUMP
RCRZRZ
1
C R
RZ
L L
M20690A
W8665E
FAN
RELAY
R8222 R8222
CIRCULATING
PUMP
CIRCULATING
PUMP
C R
L L
R8222
T (TV)
T
L8148 / L8124
COOLING
CONTACTOR
CIRCULATING
PUMP
Fig. 16. Zoned hot water heat and single-zone cooling using circulating pumps, R8222 Relays, an L8148/L8124
1
FACTORY INSTALLED JUMPER.
Aquastat and a transformer.
M20691A
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Page 11

SETUP

6
W8665A,E RF RECEIVER MODULE

Setting Up W8665A,E to Receive Signals from the T8665A Thermostat(s)

The T8665A Thermostat(s) require(s) setup to send signals to the W8665 Receiver Module to operate:
• The W8665A Receiver is used for single-zone applications.
• The W8665E RF Zone™ Panel is used for up to three T8665A Thermostats for multi-zone applications.
IMPORTANT
Be sure the thermostat is at least five feet away from the W8665 during setup. Maximum dis­tance is 200 feet.
Single Zone Applications (1 W8665A/1 T8665A)
1. Power up the W8665A and install the batteries in
the T8665A Thermostat.
2. Place the W8665A Zone 1 DIP switch to the On
position.
NOTE: The W8665A Zone 1 LED will flash.
3. Press the thermostat Fan key to On:
a. The receiver accepts the message and stores
the identity. b. The zone 1 LED stops flashing. c. The thermostat is now set to send signals to
the W8665A Receiver.
NOTE: The word, On, and a fan blade appear in the
thermostat display to indicate the thermostat is calling for the fan to turn on.
d. Use Fan key to turn off fan.
4. Set System and Fan keys to the desired locations.
NOTE: At any time, if you want to stop the thermostat
from sending signals to the W8665 Receiver, turn the DIP switch to Off. Then repeat steps 1­3 to set up the thermostat to send signals to the W8665 Receiver.
Multizone Applications (1 W8665E/Up to 3 T8665A)
1. Power up the W8665 and install the batteries in the
T8665 Thermostats.
2. Set the thermostats so no zones are calling for sys-
tem or fan.
3. Set up each zone separately to ensure that a
unique address is used for each zone.
4. Place the zone 1 DIP switch on the W8665E
Receiver to the On position.
NOTE: The W8665E zone 1 LED will flash.
5. Press the thermostat Fan key to On:
a. The receiver accepts the message and stores
the zone identity. b. The zone 1 LED stops flashing. c. The thermostat is now set to send signals to
the W8665E Receiver.
NOTE: The word, On, and a fan blade appear in the
thermostat display to indicate the thermostat is calling for the fan to turn on.
d. Use Fan key to turn off fan.
NOTE: At any time, if you want to stop the thermostat
from sending signals to the W8665 Receiver, turn the DIP switch to Off. Then repeat steps 2 through 5 to set up the thermostat to send signals to the W8665 Receiver.
6. Repeat steps 2 through 5 for zones two and three.
7. Set System and Fan keys to desired locations.
8. Attach the zone number sticker, included with the
thermostat, onto the thermostat case on the inside of the thermostat cover. See Fig. 5.
Zone 2
Zone 3
Zone 1
Place one label inside each thermostat door.
Fig. 17. Zone number stickers for inside of
thermostat cover.
M1342

OPERATION

W8665A Sequence of Operation

On a call for heating or cooling, the thermostat sends a signal to the W8665A to bring on the heating or cooling until the call is satisfied. The Comm LED flashes when the W8665A receives a signal from the thermostat to turn on the system or approximately every ten minutes as a status update. On a call for heating, cooling or fan, the zone LED lights red.

W8665E Sequence of Operation

On a call for heating or cooling from any zone, the thermostat sends a signal to the W8665E to bring on the heating or cooling in that zone until the call is satisfied. The Comm LED flashes when the W8665E receives a signal from the thermostat in any zone to turn on the system or approximately every ten minutes as a status update. On a call for heating, cooling or fan, the zone LED lights red.

W8665E Single and Multi-Stage Operation

The first stage is energized by the thermostat. To control multistage conventional and heat pump systems, the W8665 must be wired to a zone control panel that is able to control multiple stages of heat and/or cool (such as the EMM-3U Universal Electronic MiniZone Control Panel or TZ-4 TotalZone® Zone Control Panel). The zone panel (not the RF panel) controls these stages based on the number of zones calling or with a timer. See the Zone Control Panel Instructions for more details on how to control up to three stages of heat and two stages of cool.
11 69-1630-1
Page 12
W8665A,E RF RECEIVER MODULE

LED Operation (See Table 4)

NOTE: See Setting up W8665A,E Receiver Module to
Receive Signals from the T8665A Thermostat section.
Table 4. LED Operation.
LED LED action Meaning
Comm Flashes rapidly for 2-3 seconds. Indicates device is currently receiving information from the
Zones 1-3 On constantly. Indicates system (heat, cool, or fan) is on.
Zones 1-3 Off constantly. Indicates system (heat, cool, or fan) is off.
Zones 1-3 Flashes rapidly until signal is
Zones 1-3 Flashes continuously. Indicates a problem receiving signals from the transmitter
received.
T8665 Thermostat.
Indicates zone is being set up to receive signals from a transmitter (T8665 Thermostat).
(T8665 Thermostat). See Troubleshooting Guide for more information.
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Page 13

TROUBLESHOOTING (TABLE 5)

Table 5. Troubleshooting Guide.
Symptom Possible Cause Action
Display does not come on. Thermostat is not being
Heating does not come on. System on indicator
( = heat) is showing in display.
Cooling does not come on. System on indicator ( = cool) is showing in display.
Wait is displayed and the call for cool has not started.
2nd stage heat or cool (or 3rd stage heat) does not energize.
powered.
Communication is not being completed.
Heating load at W8665 is not connected correctly.
Thermostat is too close to W8665.
Thermostat is too far away from W8665.
Communication is not being completed.
Cooling load at W8665 is not connected correctly.
Thermostat is too close to W8665.
Thermostat is too far away from W8665.
Compressor protection is in effect.
W8665 is not wired to a TZ-4 TotalZone™ Zone Control Panel or EMM-3U Universal Electronic MiniZone Control Panel that controls the multiple heat and cool stages.
W8665A,E RF RECEIVER MODULE
Check if batteries are present and installed correctly.
If batteries are in and installed correctly, replace
thermostat.
End and repeat the call for heat. Check the Comm LED and Zone LED on the W8665 while the call is being made.
If the Comm LED does not flash when thermostat
first calls for equipment, turn that zone DIP switch to Off. Refer to Setup section to reset the W8665.
If the Zone LED flashes continuously, turn that
zone DIP switch to Off. Refer to Setup section to reset the W8665.
Check if 24 Vac is present:
Check between R and C on W8665.
Check between W of troubled zone and C on
W8665.
If voltage is present, troubleshoot heating system.
T8665 Thermostat should be at least five feet away from the W8665 during setup and operation.
Maximum distance between W8665 and T8665A Thermostat should not exceed 200 feet.
End and repeat the call for cool. Wait five minutes for the compressor delay to end.
If the Comm LED does not flash when thermostat
first calls for equipment, turn that zone DIP switch to Off. Refer to Setup section to reset the W8665.
If the Zone LED flashes continuously, turn that
zone DIP switch to Off.Refer to Setup section to reset the W8665.
Check if 24 Vac is present:
Check between R and C on W8665.
Check between Y of troubled zone and C on
W8665.
If voltage is present, troubleshoot cooling system.
T8665 Thermostat should be at least five feet away from the W8665 during setup and operation.
Maximum distance between W8665 and T8665A Thermostat should not exceed 200 feet.
Compressor protection can be set on the T8665A from 0 to 5 minutes to prevent compressor damage due to rapid cycling. Wait until the compressor protection period expires.
Wire W8665 to TZ-4 TotalZone™ Zone Control Panel or EMM-3U Universal Electronic MiniZone Control Panel to control multi-stage systems.
Check TZ-4 TotalZone™ Zone Control Panel or EMM-3U Universal Electronic MiniZone Control Panel and set correctly.
13 69-1630-1
Page 14
W8665A,E RF RECEIVER MODULE
Symptom Possible Cause Action
Fan does not come on with a call for electric heat.
Electric heat setting is not configured.
Fan load at W8665 is not connected correctly.
Table 5. Troubleshooting Guide.
Set thermostat Installer Setup Number 2 to 1 for electric heat. See thermostat instructions for details.
Check that 24 Vac is present between R and C.
Check that 24 Vac is present between G and C.
If voltage is present, troubleshoot system.
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Page 15
W8665A,E RF RECEIVER MODULE

FCCID: CFS8DL5800TSTAT

CANADA: 1748A12113
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested to FCC requirements and has been found acceptable for use. The FCC requires the

FEDERAL COMMUNICATIONS COMMISSION (FCC) STATEMENT

following statement for your information:
This equipment generates and uses radio frequency energy and, if not installed and used properly; that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio and television reception. It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• If using an indoor antenna, have a quality outdoor antenna installed.
• Reorient the receiving antenna until interference is reduced or eliminated.
• Move the radio or television receiver away from the receiver/control.
• Move the antenna leads away from any wire runs to the receiver/control.
• Plug the receiver/control into a different outlet so that it and the radio or television receiver are on different branch circuits.
If necessary, the user should consult the dealer or an experienced radio/television technician for additional suggestions. The user or installer may find the following booklet prepared by the Federal Communications Commission helpful:
This booklet is available under Stock No. 004-000-00450-7 from the US Government Printing Office, Washington, DC
20402.
The user shall not make any changes or modifications to the equipment unless authorized by the Installation Instructions or User’s Manual. Unauthorized changes or modifications could void the user’s authority to operate the equipment.
“Interference Handbook”
15 69-1630-1
Page 16
W8665A,E RF RECEIVER MODULE
Automation and Control Solutions
Honeywell Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario
69-1630-1 G.H. Rev. 9-03 www.honeywell.com/yourhome
M1V 4Z9
Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers.
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