Honeywell T8611M User Manual

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T8611M

(7-Day Programming)

Chronotherm III™

Heat Pump Thermostats

The T8611M Chronotherm III Programmable

Thermostat provides automatic control of multistage heat pump systems and offers users the highest standard of comfort and convenience available with energy savings.

■Full seven-day program capability; different schedules may be selected for every day.

■Can be programmed in hand (with batteries installed) or on the wall to provide up to four temperature periods per day.

■Large digital clock (liquid crystal display) indicates continuous time-of-day, day-of-week, current period and room temperature.

■Adaptive Intelligent Recovery™ brings room temperature to programmed temperature at programmed time, maximizing comfort and energy savings.

■Temperature control program maintains temperature within 1° F of setpoint.

■Temporary program override available by using—

—WARMER and COOLER keys.

—SKIP next period key.

—CHANGE to last period key.

■HOLD TEMP key provided for indefinite program override (vacation/holiday).

■Installer self-test with time delay override saves installation time.

■SYSTEM light-emitting diode (LED) on thermo-

temperature sensing.

stat indicates system is energized.

■AUX. HT., EM. HT., CHECK LEDs available on select models.

■Automatic heat/cool changeover.

■Batteries included provide power to maintain clock and memory during power failures.

■Switching subbase with wiring terminals included.

■Powered directly from control transformer.

■Model available with separate sensor for remote

CONTENTS
Specifications .................................................	2
Ordering Information .....................................	2
Selection/Application .....................................	5
Installation ...................................................	12
Checkout .......................................................	18
Programming The Thermostat .....................	20
Operating The Thermostat ...........................	25
Operation .....................................................	27
Troubleshooting ...........................................	29
Glossary .......................................................	30
Table of Contents .........................................	32

68-0076—1

C. H. • Rev. 10-92 • ©Honeywell Inc. 1992 • Form Number 68-0076—1

T8611M

SPECIFICATIONS • ORDERING INFORMATION

Specifications

TRADELINE MODELS

TRADELINE models are selected and packaged to provide ease of stocking and handling and also maximum

replacement value.

TRADELINE models available are listed in Table 1.

TABLE 1—TRADELINE MODELS AVAILABLE.

	Stages		Changeover	Switching
Thermostat	Heat	Cool	Type	System	Fan	Application	Program
T8611M*	3	2	Automatic	EM. HT.-HEAT-OFF-	ON-AUTO	Heat Pump	7-Day
				AUTO-COOL

*Model available with separate sensor for remote temperature sensing.

LIGHT-EMITTING DIODES (LEDs):

SYSTEM LED (yellow) on thermostat lights during thermostat heating and cooling ON cycles.

EM.HT. LED (red) on subbase lights when system switch is in EM.HT. On some systems, light may indicate need to switch to EM.HT. because of heat pump problem.

AUX. HT. LED (green) on subbase lights when thermostat is calling for operation of auxiliary heat.

CHECK LED (yellow) on subbase lights when an equipment or system problem needs to be checked. Consult heat pump literature to determine meaning.

VOLTAGE RATING: 15 to 30 Vac.

CURRENT RATING: 1.6A maximum, total per stage. OPERATING HUMIDITY RANGE: 5 to 90 percent rela-

tive humidity, noncondensing.

OPERATING AMBIENT TEMPERATURE RANGE: 40° F to 110° F [4° C to 43° C].

SET POINT RANGE: 45° F to 88° F [7° C to 31° C].

CALIBRATION: Self-calibrating thermostat and thermometer to ±1° F.

SHIPPING TEMPERATURE: -20° F to +120° F [-29° C to +49° C].

CYCLES PER HOUR ADJUSTMENT:

Auxiliary heating—factory-set at 3 cph (adjustable to

6 cph for special systems); minimum off-time of five minutes.

Nonauxiliary heating and cooling—factory-set (not field adjustable); minimum off-time of five minutes.

FINISH: Beige matte with decorative brushed metal faceplate.

DIMENSIONS: Thermostat (mounted on subbase)—7 in. [178 mm] long, 5-5/16 in. [135 mm] high, 1-3/4 in. [44 mm] deep. See Fig. 1 for subbase dimensions. See Fig. 2 for remote sensor dimensions.

TYPICAL KEYPAD: See Fig. 3. REPLACEMENT PARTS:

202905AA Remote Temperature Sensor. 220529 Replacement Door.

AAA alkaline batteries, available locally. ACCESSORIES:

193121A Cover Plate Assembly. Includes cover plate, adapter ring and screws; 6-9/10 in. x 4-3/4 in. [175 mm x 121 mm]. Covers marks left by old thermostat. Allows mounting on vertical or horizontal outlet box.

TG512 Universal Thermostat Guards. Includes clear or opaque plastic or metal cover, ring base, opaque plastic wallplate, tumbler lock with two keys.

TG586A Locking Cover.

Ordering Information

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TRADELINE Catalog or price sheets for complete ordering number, or specify—

1. Model number. 3. Remote temperature sensing, if desired.

2. Number of heat and cool stages desired.

If you have additional questions, need further information or would like to comment on our products or services, please write or phone:

1.Your local Honeywell Home and Building Control Sales Office (check white pages of your phone directory).

2.Home and Building Control Customer Satisfaction Honeywell inc., 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386 (612) 951-1000

In Canada—Honeywell Limited/Honeywell Limitée 740 Ellesmere Road, Scarborough, Ontario M1P 2V9. International sales and service offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

T8611M

SPECIFICATIONS

Fig. 1—T8611 Subbase mounting dimensions in in. [mm].

1 3132

[50]

116 [46]

4 32 [104]

516 [135]

316 [83]

4 4 [121]

7 [179]

M5181A

Fig. 2—202905AA Remote Sensor dimensions in in. [mm].

FRONT		SIDE	BACK
		1 31	2
		1 31	[51]
	32		[51]
	32
	[50]

		1	31	[50]
			32			19	[8]
						19	[8]
						64
3
4 32		41	[16]
[104]		64	[16]		9	[4]
1 3	[35]				64	[4]
8
						1	DIA.
						2	DIA.
					[13]

							1 [25]		M5244

68-0076—1

T8611M

SPECIFICATIONS

Fig. 3—Typical thermostat keypad.

				AM		SYSTEM
					ROOM
			WED
			MIDDAY		HEAT ON
					TEMPERATURE
	RUN				PRESENT
	RUN				SETTING
	PROGRAM				SETTING
	PROGRAM
				TIME
SET			COPY			SKIP
PRESENT	DAY	PERIOD	COPY	AHEAD	WARMER	NEXT
PRESENT			FROM			NEXT
DAY/TIME						PERIOD
DAY/TIME						PERIOD
HOLD	SET	CANCEL	COPY	BACK	COOLER	CHANGE
HOLD	SET	CANCEL	COPY	BACK	COOLER	TO LAST
TEMP	HEAT/COOL	PERIOD	TO			TO LAST
TEMP	HEAT/COOL	PERIOD	TO			PERIOD
						PERIOD

FAN

HEAT OFF COOL

ON AUTO

M5360

T8611M

SELECTION/APPLICATION

Selection/Application

The T8611 Thermostat uses the latest microelectronic design and control technology to provide home and building owners with the highest level of comfort available and optimal energy savings in a package that is easy to use and easy to live with.

The following section is a guide to selection and application of the best thermostat to meet individual customer needs.

PROGRAMMING

Does the thermostat selected accommodate the customer’s daily schedule, lifestyle or work schedule? Refer to choices below.

TRADELINE		Daily Temperature
Device	Programming	Selection
T8611G,R*	Weekday,	4 heat and
	Sat, Sun.	4 cool
T8611M	7-day	4 heat and
	(each day	4 cool
	different)

*Specifications form 68-0057 for information.

IF NEW CONSTRUCTION APPLICATION, CONSIDER

•equipment type (see manufacturer’s specifications)

—system switching required

—status indication provided

•control wiring—number of conductors required to operate equipment and thermostat.

IMPORTANT: The T8611 requires a conductor to transformer common to provide continuous 24V power for thermostat operation. This feature is commonly specified and provided by equipment manufacturer.

IF RETROFIT/REPLACEMENT APPLICATION, CONSIDER

•equipment requirements

—system switching (manual: EM. HT.-HEAT-OFF- COOL, automatic: EM. HT.-HEAT-OFF-AUTO- COOL).

—unique heat pump functions of emergency or supplemental heat, changeover on heat or cool, and status indication.

—Table 3 lists typical applications by manufacturer.

•existing wiring

—Are there enough conductors to operate the equipment and the thermostat? Can a new cable be pulled?

•existing thermostat

—Table 3 is a guide for replacing popular Honeywell standard nonprogrammable thermostats with a T8611.

SECURITY

Does the thermostat selected provide access to programming and the override features that will best suit the application? Refer to choices below.


	Typical
Access	Application	Device
Free access to	Home or	T8611
programming	owner-occupied
and adjustment/	commercial
override.	building.
Restricted	Public building.	T8611 with TG512
access to		Locking Cover;
device.		T8611 with remote
		temperature
		sensing.

68-0076—1

T8611M

SELECTION/APPLICATION

Table 2 lists features and wiring terminal functions of the TRADELINE T8611M thermostat.

TABLE 2—T8611M FEATURES AND TERMINALS.

T8611M
FEATURES
				COMMENTS
Heating Stages		3		May be applied to 2-stage heat pump systems; see wiring
Cooling Stages		2		diagrams Figs. 6 and 7.
Changeover		Auto
Programming		7-day
SYSTEM LED		Yes		Lights on call for heat or cool.
EM. HEAT LED (red)		Yes		Lights continuously in EM. HEAT mode.
AUX. HEAT LED (green)		Yes		Lights during call for final auxiliary heat stage.
CHECK LED (yellow)		Yes		Field wired option; indicates equipment malfunction.
Remote Temperature		Yes		Available on T8611M7040 only. (202905A Remote Sensor
Sensing				included).
WIRING TERMINAL
FUNCTION
24 Vac Common		C		Must be connected to control transformer to operate
				thermostat.
24 Vac Power		R
Compressor, Stage 1		Y
heat and cool.
Compressor,		Y2		If applying T8611M to 1-stage cooling system, leave Y2
Stage 2 cool				unconnected.
Second Stage Heat		W2		If applying T8611M to 2-stage heat systems in which the
Auxiliary (Resistive)				second stage is compressorized, connect stage 2 to W2;
Third Stage Heat		W3		leave W3 unconnected.
				If 2-stage heat system in which the second stage is auxillary
				(electric resistive), connect auxiliary stage to W3; leave
				W2 unconnected.
Fan		G
Changeover Heat Mode		B		O/B changeover terminals are energized continuously
				following first call for cool or heat, respectively.

Changeover Cool Mode		O

System Monitor,		L		Energizes EM. HEAT LED when externally powered.
continuously energized
in EM. HEAT mode.
Emergency Heat		E
energized on call for
stage 1 heat in
EM. HEAT mode
Check LED terminals	X1		X2	See wiring diagrams for hookup alternatives.
to indicate equipment
malfunction
Remote Temperature	S1	S2	S3	Available on T8611M7040 only. Must be connected to
Sensing				202905A Remote Sensor for proper thermostat operation.

T8611M

SELECTION/APPLICATION

TABLE 3—T8611 GUIDE FOR REPLACING POPULAR T874 AND T872 THERMOSTATS,

BY EQUIPMENT MANUFACTURER.

(NOTE: Also see form 70-6627, Heat Pump Thermostat Cross Reference Guide, for wiring hookup illustrations.)

Thermostat (Subbase Included)

Auto

Manual

Changeover

Weekday,

Sat, Sun

Auto

T8611G1004

T8611R1000

Changeover

T8611G1012 (° C)

T8611R1042 (° C)

7-day

T8611G1103

T8611R1141

T8611M7008

(Premier White)

T8611M7040c

Thermostat

Subbase

Thermostat

Subbase

(also see form 68-0057, Specifications)

T874

Q674

T872

Q672

Comments

Amana

•

D1009

F1022

D1003

F1026

Separate first stage

•

D1017

D1011

heat/cool terminals W1, Y1.

•

D1165

D1300

Arco/Comfort Maker

•

Check LED optional;

•

X = X1, jump X2 to C.

Arco/Friedrich

•

Changeover on heat,

•

check LED optional.

Bard

•

N1024

F1261

N1036

F1299

Changeover on heat (typical),

•

R1129

L1181

R1146

L1185

check LED optional, equipment

terminal W1 to thermostat B.

Bryant, Day-Night, Payne

•b

•a,b

•b

G1451

F1113b

G1166

F1125

Check LED optional; F = X1,

•

G1261

F1253

jump X2 to C. Note: P terminal

•

J1010

L1371

G1174

available

manual

•

changeover

•

R1335

L1405

(T8611R) models only.

•

Carrier

•

G1055

J1035

G1075

J1054

Check LED optional (typical)

•

G1071

L1041

G1158

L1052

•

G1121

L1397

G1182

•

P1005

G1273

•

G1307

•

G1257

L1169

•

J1002

L1371

•

J1028

L1074

•

D1074

F1059

Multistage heat pump

•

F1030

•

F1063

•

E1114

No Supl. Ht. function

•

E1042

No Supl. Ht. function

•

D1264

L1116

Multistage heat pump

Command

Aire

•

H1005

C1041

H1009

C1086

No AUX. HEAT or EM.

•

G1352

C1066

HEAT required; Y1 = 0

a No CHECK LED.

b Dual transformer requires conversion to single transformer.

c Model includes separate sensor for remote temperature sensing.

(continued)

68-0076—1

T8611M

SELECTION/APPLICATION

TABLE 3—T8611 GUIDE FOR REPLACING POPULAR T874 AND T872 THERMOSTATS,

BY EQUIPMENT MANUFACTURER (Continued).

(NOTE: Also see form 70-6627, Heat Pump Thermostat Cross Reference Guide, for wiring hookup illustrations.)

Thermostat

(Subbase

Included)

Auto

Manual

Changeover

Weekday,

Sat, Sun

Auto

T8611G1004

T8611R1000

Changeover

T8611G1012 (° C)

T8611R1042 (° C)

7-day

T8611G1103

T8611R1141

T8611M7008

(Premier White)

T8611M7040c Thermostat

Subbase Thermostat

Subbase

T874

Q674

T872

Q672

Comments

(also see

form 68-0057, Specifications)

Coleman

•

R1368

L1421

Late models optional check

•

LED. Z = X2, jump X1 and C,

K = L.

•

Earlier T.H.E. models with

reverse-acting EM. HT.

require relay isolation.

Crispaire/Marvair

•

G1089

F1162

G1208

F1166

F1204

F1323

•

R1111

L1215

R1156

L1094

Fedders/Airtemp/Climatrol

•a

C1398

L1090

C1509

L1102 Separate first stage heat/cool

•a

C1406

C1517

terminals required; check LED

•a

C1414

C1541

optional; equipment terminal

K to thermostat E.

Florida Heat Pump

•

Optional check LED;

•

X = X1, jump X2 to C.

Heatwave/Southwest

Mfg.

•

G1105

F1170

G1232

F1224

Heil

Quaker/Whirlpool/Tempstar

•

R1137

L1132

R1172

L1193

Equipment terminal B

to thermostat C.

Honeywell

•

A-D (typ.)

F1006

A-D (typ.)

F1000

Separate first stage

•

F1022

F1026

heat/cool terminals.

•

F1048

F1042

•

C1000

F1089

C1004

F1075

•

C1018

C1038

°C

•

C1117

C1350

•

C1240

C1566

°C

•

G1246

F1212

G1224

F1208

TRADELINE

•

G1444

G1000

F1018

°C

•

G1018

•

G1212

F1238

G1083

F1158

•

G1139

a No CHECK LED.

b Dual transformer requires conversion to single transformer.

c Model includes separate sensor for remote temperature sensing.

(continued)

T8611M

SELECTION/APPLICATION

TABLE 3—T8611 GUIDE FOR REPLACING POPULAR T874 AND T872 THERMOSTATS, BY EQUIPMENT MANUFACTURER (Continued).

(NOTE: Also see form 70-6627, Heat Pump Thermostat Cross Reference Guide, for wiring hookup illustrations.)

Thermostat

(Subbase

Included)

Auto

Manual

Changeover

Weekday,

Sat, Sun

Auto

T8611G1004

T8611R1000

Changeover

T8611G1012 (° C)

T8611R1042 (° C)

7-day

T8611G1103

T8611R1141

T8611M7008

(Premier White)

T8611M7040c Thermostat

Subbase Thermostat

Subbase

(also see

form 68-0057, Specifications)

T874

Q674

T872

Q672

Comments

Honeywell

(continued)

•

N1016

F1220

N1002

F1133 Changeover on heat; equip-

•

N1040

F1261

N1028

F1216 ment terminal C to thermostat

•

R1004

B1042

R1008

B1046 Y, W1 to B, K to E.

•

B1109

R1057

L1037

•

R1152

L1207

R1198

L1227

•

R1285

L1157

•

R1350

L1181

Janitrol/Tappan

•

G1147

F1139

G1109

F1117 Equipment terminal C to

thermostat C.

Lennox

NOTE: Rewire for single 75

transformer if two-transformer

•

G1014

F1113

G1026

F1067

system.

°C

•

G1022

E1148

G1125

E1019

•

G1162

G1091

DoD specs—use guard.

•

G1154

F1105

G1323

L1201

•

R1024

B1160

•

R1040

B1202

•

R1178

L1355

•

L1165

•

C1148

L1165

•

D1207

L1199

Two-speed unit; optional check

•

L1389

LED; thermistor A not used.

Ter-

minal

Conversion

Guide:

Lennox Standard

Transformer

Common

Transformer

Power

VR (in)

V (out)

Compressor

Aux. Heating

Fan

Changeover

System Monitor

L,X1,X2

Em.Heat (cycling)

Thermistor

T (not

required)

a No CHECK LED.

(continued)

b Dual transformer requires conversion to single transformer.

68-0076—1

c Model includes separate sensor for remote temperature sensing.

T8611M

SELECTION/APPLICATION

TABLE 3—T8611 GUIDE FOR REPLACING POPULAR T874 AND T872 THERMOSTATS,

BY EQUIPMENT MANUFACTURER (Continued).

(NOTE: Also see form 70-6627, Heat Pump Thermostat Cross Reference Guide, for wiring hookup illustrations.)

Thermostat (Subbase Included)
Auto	Manual
Changeover	Changeover
Weekday,	Weekday,
Sat, Sun	Sat, Sun		Auto
T8611G1004	T8611R1000	Changeover
T8611G1012 (° C)	T8611R1042 (° C)		7-day
T8611G1103	T8611R1141	T8611M7008
(Premier White)	(Premier White)	T8611M7040c		Thermostat	Subbase	Thermostat	Subbase
(also see	form 68-0057, Specifications)			T874	Q674	T872	Q672	Comments
				Luxaire
•	•		•	G (Borg	F1188	G1315	F1281
				Warner)
				Magic Chef
	•			na	na	na	na	Earlier PB series, separate first
	a							stage heat/cool.
•	a		•	na	na	na	na	Late PE series, optional check
•	•		•	na	na	na	na	Late PE series, optional check
								LED; X1 = X1, jump X2 to R.
				Rheem/Ruud
•	•		•	G1097	F1238	G1133	F1158
•	•		•	G1238		G1141	L1157
•	•		•			R1081	L1045
•	•		•	G1220		R1107	L1136
•	•		•	R1079
•	•		•	R1095
				Square D/Sun Dial
	•a			C1224	F1071	C1525	F1182	Separate first stage heat/cool
								required; optional check LED;
								X = X1, jump X2 to R.
				Trane/General Electric
•	a		•	G1204	J1043	G1059	J1039	Optional check LED; F = X1,
•	•		•	G1204	J1043	G1059	J1039	Optional check LED; F = X1,
								jump X2 to C; T not used;
								equipment terminal B to ther-
								mostat C, R to R, Y to Y (Y1 +
								W1), W to W2, G to G, 0 to 0,
								X2 to E.
				Weather King
•	•		•	na	na	G1265	F1265	Optional check LED; X = X1,
								jump X2 to R; equipment ter-
								minal C to thermostat C, W1
								to Y (W1 + Y1), E to W2,
								Y1 to 0.

aNo CHECK LED.

bDual transformer requires conversion to single transformer.

cModel includes separate sensor for remote temperature sensing.

(continued)

+ 22 hidden pages