HONEYWELL Controls And HVAC Accessories Manual L0712581

User Manual: HONEYWELL HONEYWELL Controls and HVAC Accessories Manual HONEYWELL Controls and HVAC Accessories Owner's Manual, HONEYWELL Controls and HVAC Accessories installation guides

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Honeywell

THE T8600, T8601, T8602, T8603 CHRONOTHERM III PRO-

GRAMMABLE FUEL SAVER THERMOSTATS PROVIDE

AUTOMATIC CONTROL OF SINGLE STAGE HEATING OR

HEATING/COOLING SYSTEMS AND OFFER USERS THE

HIGHEST STANDARD OF COMFORT AND CONVENIENCE

AVAILABLE WITH ENERGY SAVINGS.

[] T8600 thermostats are powered through the heating/ccoling

system controls; ideal for replacement application.

[] T8601 thermostats are powered direct from transformer,

requiring two wires to system transformer; ideal for new con-

struction installation,

[] T8602 thermostats are powered bythree AA alkaline batter-

ies; suitable for 100 percent control compatibility.

[] T8603 thermostats are powered direct from transformer,

and include additional terminals for one, two or three trans-

former systems.

[] Thermostats include a wiring wallplate.

1-1 Digital clock (liquid crystal display) indicates continuous

time, day, current period, and room temperature. Upon inquiry,

provides program times and program set points.

[1 All thermostats provide 4 different temperature settings per

daily schedule to optimize user comfort and energy savings.

[] Different daily schedules may be selected for weekdays,

Saturday and Sunday.

IJ ENRG. SAV. and SYSTEM light-emitting diodes (LEDs)

included on T8600, T8601, T8603 models.

C3 Models available with automatic heatJcool changeover.

[] Batteries packed with devices provide power to maintain

clock and memory during power failures in T8600, T8601,

T8603 and supply power for operation in T8602.

[] Thermostat can be programmedin hand or after mounted on

wall (batteries must be installed).

E3 Temporary program override available by using--

--WARMER and COOLER keys.

--SKIP next program key.

--CHANGE to last program key.

[] HOLD TEMP key provided for indefinite program override

(vacation_oliday).

[] Adaptive Intelligent Recovery TM function brings room tem-

perature to programmed temperature at programmed time,

maximizing comfort and energy savings.

E3 AdaptiveIntelligent Recovery_tconventional recoveryse~

lection screw includedon backof thermostat.

E3 Fan operation switch included on back of SUPER TRADE-

LINE models to select either independent or direct thermostat

control of fan in heating.

S.M. Form Number 68-0056--1

Rev. 4-90 ©Honeywell Inc. 1990

IMPORTANT

THE SPECIFICATIONS GIVEN IN THIS PUBLICATION DO NOT INCLUDE NORMAL MANUFACTURING TOL-

ERANCES. THEREFORE, THIS UNIT MAY NOT MATCH THE LISTED SPECIFICATIONS EXACTLY. ALSO,

THIS PRODUCT IS TESTED UNDER CLOSELY CONTROLLED CONDITIONS, AND SOME MINOR DIFFER-

ENCES IN PERFORMANCE CAN BE EXPECTED IF THOSE CONDITIONS ARE CHANGED.

SUPER TRADELINE MODELS

SUPER TRADELINE controls offer features on available on TRADELINE models, and are designed to replace a wide

range of Honeywell and competitive controls.

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

replacement value. Specifications of SUPER TRADELINE and TRADELINE controls are the same except as noted below.

THERMOSTAT

MODEL

NUMBER

T8600C a,b

T8602C c

T8603C

TABLE I---SUPER TRADELINE MODELS.

STAGES

HEAT COOL

1 1

SWITCHING

SYSTEM FAN

HEAT-OFF- ON-AUTO

COOL

HEAT-OFF- ON-AUTO

COOL

HEAT-OFF- ON-AUTO

COOL

APPLICATION

Gas, oil or electric

24 Vsystems

with option of in-

dependent or

thermostat-

control(ed fan in

heat.

POWER METHOD

Powered through the heating or

cooling system controls; backup

batteries included.

batteries,

Powered direct from transformer:

includes additional terminals for

one, two or three transformer

systems; backup batteries

included.

aTypical single-stage heat pump (with external fan control) applications; jumper W and Y.

blncludes 250 ohm, 10 W resistor for low current draw (below 0.08 A) system compatibility.

CTypicatolder and commercial electric heat, and water coil applications.

SUPER TRADELINE FEATURE:

Fan operation switch on back of thermostat to select either independent or direct thermostat control of fan in heating.

WHEN PURCHASING REPLACEMENT AND MODERNIZATION PRODUCTS FROM YOUR TRADELINE

WHOLESALER OR YOUR DISTRIBUTOR, REFER TO THE TRADELNE CATALOG OR PRICE SHEETS FOR

COMPLETE ORDERING NUMBER, OR SPECIFY--

1. Model number; SUPER TRADELINE, If desired.

2. Number of heat and cool stages desired.

3. System, fan switching desired.

4. Application.

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 RESIDENTIAL SALES OFFICE (CHECK WHITE PAGES OF YOUR PHONE

DIRECTORY).

2. RESIDENTIAL DIVISION CUSTOMER SERVICE

HONEYWELL INC,, 1885 DOUGLAS DRIVE NORTH

MINNEAPOLIS, MINNESOTA 55422-4386 (612) 542-7500

IN CANADA--HONEYWELL LIMITED/HONEYWELL LIMITEE, 740 ELLESMERE ROAD, SCARBOR-

OUGH, ONTARIO MIP 2V9. INTERNATIONAL SALES AND SERVICE OFFICES IN ALL PRINCIPAL

CITIES OF THE WORLD.

TRADELINE MODELS

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

replacement value.

TABLE II--TRADELINE MODELS.

THERMOSTAT

MODEL STAGES

NUMBER HEAT C_0OL

T8600A 1

T8600B a 1 --

T8600B b 1 --

T8600C c1 1

T8600C c'd 1 1

SWITCHING

SYSTEM

HEAT-OFF

HEAT-OFF-COOL

T8600D e 1 1 HEAT-OFF-

COOL-AUTO

T8601A 1 -- --

T8601B 1-- --

T8601C c 1 1 HEAT-OFF-COOL

T8601D e 1 1 HEAT-OFF-

COOL-AUTO

T8602A 1 -- --

T8602B b 1 -- --

T8602C 1 1 HEAT-OFF-COOL

T8603A 1 --

T8603B 1 -- --

FAN

ON-AUTO

aWith positive OFF.

bHeat only with fan control.

CTypical single-stage heat pump (with external fan

control) applications; jumper W and Y.

APPLICATION

Gas, oil or electric 24 V

systems with indepen-

dently controlled fan in

heat.

24 V systems with

thermostat-controlled fan

on heat and cool.

Gas, oil or electric 24V

systems with independ-

ently controlled fan in heat.

Gas, oil or electric

24 V systems with

independently controlled

fan in heat; ideal for new

construction installation.

Gas, oil or electric 24 V

systems with indepen-

dently controlled fan in

heat.

Gas, oil or electric 24 V

systems with indepen-

dently controlled fan in

heat.

POWER METHOD

Powered through

heating or cooling

system controls;

backup batteries

included.

Powered direct from

transformer, requires

two wires to system

transformer; backup

batteries included.

alkaline batteries

(included).

Powered from a

separate transformer,

requiring extra wire(s)

to thermostat; backup

batteries included.

dTypical older and commercial electric heat, and water

coil applications.

eln freezing climates, be sure the cooling compressor

has adequate cold start protection.

LIGHT-EMITTING DIODES (LEDs): Two included on

T8600, T8601, T8603 models. SYSTEM LED lights up

during thermostat ON cycle, and ENRG. SAV. LED

lights up during the LEAVE and SLEEP time periods.

VOLTAGE RATING: 15 to 30 Vac.

CURRENT RATING:

For T8600:0.08 A minimum to 1.2 A maximum. Current

draw must be 0.08 A to 1.2 A in the W or Y circuit

when the fan switch is in the ON position, or 0.08 A

to 1.2 A total in the Y plus G circuits when the fan

switch is in the AUTO position.

For T8601, T8602, T8603:1.6 A maximum.

OPERATING HUMIDITY RANGE: 5 to 90 percent relative

humidity.

OPERATIVE 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 ther-

mometer to + 1° F.

SHIPPING TEMPERATURE: minus 20° Fto plus 120°F

[minus 29 ° C to plus 49° C].

CYCLES PER HOUR ADJUSTMENT:

Heating--factory-set at 6 cph (adjustable to 1, 3, or 9

cph for special systems).

Cooling--factory-set at 3 cph (not field adjustable).

FINISH: Beige matte over decorative brushed metal

faceplate.

DIMENSIONS: Thermostat (mounted on wallplate)--7 in.

[178 mm] long, 4-1/16 in. [103 mm] high, 1-3/4 in. [44

mm] deep. See Fig. 1 for wallplate dimensions.

IZ._S7

FIG. 1--T8600, T8601, T8602, T8603 WALLPLATE

MOUNTING DIMENSIONS IN in. [mm IN

BRACKETS].

68-0056--1

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ACCESSORIES:

193121A Cover Plate Assembly includes cover plate,

adapter ring and screws. Covers marks left by old

thermostat. Allows mounting on vertical or horizontal

outlet box. 6-9/10 in. x 4-3/4 in. [175 mm x 121 mm].

TG586A Locking Cover.

202384B Resistor for T8600.

REPLACEMENT PART:

220529A Replacement Door Assembly.

:.Jj ii!!i:i !i)i i i!i ii! i!!i

COMPATIBILITY

The T8600 Thermostats will replace most heating or

heating/cooling system thermostats, and are designed to

be part of a Honeywell control system. They can be used

with other control systems, but an isolating relay may be

needed in the thermostat control circuit. See Table II1.

IMPORTANT

If your system needs an isolating relay and one is not

installed, no hazard will exist, but the system will not

operate. The thermostat will not be damaged unless

you connect it directly to 120 Vac.

If the current draw of the primary control is below O.08A,

a 202394B Resistor should be installed on the furnace

terminal strip to increase the current draw of the primary

control to 0.08A or greater. This would alleviate any

compatibility problem between the T8600 Thermostat and

the system due to alow current draw. For installation

details, refer to instructions packed with the resistor.

The T8601, T8602 and T8603 Thermostats are com-

patible with other control systems without the need for an

isolating relay.

WHEN INSTALLING THIS PRODUCT...

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a hazardous

condition.

2. Checkthe ratings given on the product to make sure

the product is suitable for your application.

3. Installer must be a trained, experienced service

technician.

4. Allow thermostat to warm to room temperature be-

fore programming.

5. After installation is complete, check out product

operation as provided in these instructions.

Disconnect power supply to prevent electrical shock

or equipment damage.

LOCATION

Install thermostat and wallplate about 5 ft. [1.5 m] above

the floor in an area with good air circulation at room

temperature.

Do not install the thermostat where it may be affected

by-

- drafts or dead spots behind doors, in corners or

under cabinets.

-- hot or cold air from ducts.

-- radiant heat from sun or appliances.

-- concealed pipes and chimneys.

-- unheated (uncooled) areas behind the thermostat,

such as an outside wall.

If Replacing An Existing Thermostat

Turn thermostat power off at furnace or boiler. Amul-

tiple transformer system may require turning off multiple

switches or disconnects. Remove any existing wallplate or

subbase from wall. Label each wire with, or write down, the

letter or number on the wiring terminal as the wire is

removed, to avoid miswiring later.

If New Installation

Run cable to ahole at the selected wall location, and pull

about 3in. [76 mini of wire through the opening. Color-

coded 18 gauge thermostat cable with at least one conduc-

tor for each wiring terminal is recommended. Good service

practice recommends selection of cable with one or two

more conductors than the immediate application requires.

MOUNTING WALLPLATE

Remove thermostat from wallplate (Fig. 2).

1_,179

FIG. 2NREMOVING THERMOSTAT FROM WALL-

PLATE.

WALL

ANCHORS (2)

/,_J_ USE TWO MOUNTING HOLES THAT BEST FIT APPLICATION, 12,134

FIG. 3--MOUNTING WALLPLATE ON WALL.

•;i i,, _' ' _:i,

:;i ] i: i/i iiiiiiiii :: ): ":!:?21

_' ' '' , 'l ', i; ¸ , ,'

TABLE III--T8600 THERMOSTAT AND SYSTEM COMPATIBILITY

(not applicable to T8601, T8602, T8603)

Manufacturer Model No. Compatible Solution1

ELECTRIC HEAT RELAYS

Honeywell R841C

Klixon 51172

GAS SYSTEMS

Direct Spark Ignition Module

Honeywell $825C

Honeywell $825D

Honeywell $87B

Fenwa105-162426

Fenwa105-21

Intermittent Pilot Module (non

Honeywell $86A

Honeywell $86C

Honeywell $86D

Robertshaw SP 710-929

Rebertshaw SP 730-929

Robertshaw SP 712 series

White-Rodgers

36C84/50A22

Camstat SIG-24

Spect rol 990-195

Johnson (Penn Base)

G6ORHL

Johnson (Penn Base)

CSA42A/Y79

Johnson (Penn Base)

CSA42A

yes

yes l

lyes I

!: ° I R8239D1015

R8239D1015

100% shutoff)

yes

ye s

yes

rio

yes

R8239D1015

Powerplle (self-powered, millivolt)

All Models I no ]R8239D1015

Manufacturer Model No.

Standing Pilot

Honeywell (all)

OIL SYSTEMS

Interrupted Ignition

Honeywell R8404A

Honeywell R8185E

Robertshaw SJ4001-2001

White-Rodgers 669-430

Constant Ignition

Honeywell R8184G

Robertshaw SJ4007-204

White-Rodgers 668-430

VENT DAMPERS

Honeywell D80B,D

Robertshaw

AVD-E-780-90

Johnson (Penn Base)

M15AC-1

Flair SPG 5-21

ZONE CONTROL

Hot Water Valves

Honeywell V8043F

Taco 571-2

Flair VJ100

Electro Zone RB-4

HEAT/COOL INTERLOCK

Lennox GCSI Series

CornDatble Solution

lyosl

yes

lYesI

IR823°o1°1

I yes

yneO R8239D1015

yes I

no I R8239D1015

! yes I

yes I

ii s R8239A1052

no R8239A1052

R8239D1015

no ]R8239with

IRC-R

thermostat

The wallplate does not require leveling for operation,

but for appearance only.

The wallplate mounts directly onto the wall with the

screws and anchors included in the package. Use the

wallplate as a template, and with a pencil, mark two of the

three mounting holes inthe wallplate (Fig. 3). Ifdrywall con-

struction, plastic anchors must be used; use 3/16 in. bit to

drill holes for anchors. Gently tap anchors into holes until

they are flush to the wall surface. Thread wires through the

center opening of the wallplate. Then, mount the wallplate

using two screws provided. Gently tighten screws, level

top surface of wallplate, then securely tighten screws.

WIRING

All wiring must comply with local electrical codes and

ordinances.

Disconnect power before wiring to prevent electrical

shock or equipment damage.

The shape of the terminal barrier permits insertion of

straight or conventional wraparound wiring connections.

Either method is acceptable (Fig. 5).

Push excess wire back into the hole, and plug hole with

nonhardening caulk, putty, or insulation to prevent drafts

from affecting thermostat operation.

Refer to Figs. 6-49 for typical hookups of wallplate and

thermostat. For T8600 single transformer system using

wallplate with RC, R terminals, jumper RC and R as shown

in Fig. 4.

NOTE: Keep all wiring restricted to ribbed area surround-

ing terminals (Fig. 5) to assure thermostat/wallplate

contact.

68-0056--1

il rli!iiiiiiiilliii i!iiili i :i/

_1_ _ ,, _, , r ',., 4 _ _ _,

ooooe®ooo _oo0ooo

-I0

Iz.132_-

FIG. 4--JUMPER RC AND R FOR SINGLE TRANS-

FORMER. STRIP WIRE 3/4 in [19 mm].

List of Wiring Diagrams

IFig. No.

T8600A, B (heat only)

gas or central electric

oil

Intermittent Pilot

isolating relay

FOR STRAIGHT

INSERTION FOR WRAPAROUND--

STRIP 5/16 in, [8 mint STRIP 7/16 in. II 1 mmJ

__ RESTRICT

WIRING 1"O

THIS AREA

FRONT VIEW OF

TERMINAL AREA

CROSS-SECTIONAL VIEW OF

TERMINAL AREA _2,t6_

FIG. 5mKEEP WIRING RESTRICTED TO RIBBED

AREA SURROUNDING TERMINALS.

I6Ielectric, decentralized

7 zone valves, incompatible or 3-wire

8 zone valves, Honeywell or

9 compatible 2-wire

T8600C (heat!cool)

gas heat/electric cool, I

electric heat/electric cool I 13

oil heat/electric cool 14

isolating relay 15

T8600C, D (heat/cool)

gas heat/electric cool, single transformer I19

gas heat/electric cool, two transformer I20

T8601A,B (heat only)

gas or central electric

oil

Intermittent Pilot

I electric heat/electric cool,

thermostat-controlled fan

electric cool only

single-stage electric heat pump

1"8601C (heat/cool)

gas heat/electric cool,

electric heat/electric cool

oil heat/electric cool

Ioil heat/electric cool

isolating switching center

T8601D (heat/cool)

gas heat/electric cool

T8602A,B (heat only)

gas or central electric

oil

Intermittent Pilot

electric, decentralized

I23 Izone valves, incompatible or 3-wire

24 Izone valves, Honeywell or compatible 2-wire25

T86020 (heat/cool)

gas heat/electric cool, two transformer

with fan operation switch

IFig. No.

I 28

I32

I16

I2122

I38

Iingle-stage electric heat pump

electric heat/electric cool

I oil heat/electric cool I33

Ione valves, incompatible or 3-wire

zone valves, Honeywell or

compatible 2-wire I37

List of Diagrams (continued)

T8602C (heat/cool)

gas heat/electric cool, two transformer

gas heatlelectric cool,

electric heat/electric cool

T8603A,B (heat only)

gas

oil

Intermittent Pilot

T8603C (heat/cool)

gas heat/electric cool,

electric heat/electric cool

oil heat/electric cool

I Fig. No.

I 39

I 42

I 7

I oil heat/electric cool

I one valves, incompatible or 3-wire

zone valves, Honeywell or

compatible 2-wire

electric heat/electric cool,

gas heat/electric cool,

thermostat-controlled fan

I Fig.No.

HEATING-ONLY WALLPLATE

GAS VALVE

OR HEAT

L2 .---,qJJ 24V

APOWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED.

Z_ CURRENT DRAW MUST BE BETWEEN 0,08 A AND t.2 A.

MODELS WITH ON-AUTO FAN SWITCH. M1381

FIG. 6--T8600A,B HEATING-ONLY CIRCUIT IN CON-

TINUOUS PILOT GAS OR CENTRAL ELEC-

TRIC SYSTEM.

HEATING-ONLY WALLPLATE

OIL PRIMARY

/_ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED+

CURRENT DRAW MUST BE BETWEEN 0.08 A AND 1.2 A. t2,14S

FIG. 7--T8600A, B HEATING-ONLY CIRCUIT IN AN OIL

SYSTEM.

CONNECTION SE6 VR8440

MAIN VALVE V R8440 VALVE

COMMON $86 MODULE I _/_ "_*. TERMINALS

PILOT VALVE _ __

025 Vac

WALLPLATE L- G"--N6_

LIMIT

CONTROLLER

L_ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD _I_

PROTECTION AS REQUIRED.

MAXIMUM PILOT BURNER IGNITER-SENSOR CABLE LENGTH: 30 In.

t0.8 m]. TO VR8440

L/_ FACTORY-INSTALLED WIRES. DO NOT REMOVE, PILOT OUTLET

_j CONTROLS IN TRANSFORMER CIRCUIT MUST NOT BE IN GROUNDED

LEG, 12,_398

MODELS WITH OH-AUTO FAN SWITCH.

FIG. 8--T8600A, B; T8602A,B HEATING-ONLY CIRCUIT IN A HONEYWELL INTERMI'FrENT PILOT GAS BURNING

IGNITION SYSTEM.

68-0056--1

iii: i ii :ii¸i¸¸i:¸i¸¸¸ '

,,i r i

HEATING-ONLY WALLPLATE

R8239D1015

SYSTEM

TRANSFORMER

RED

_24 V

PRIMARY

EONTROL

,_ POWER SUPPLY• PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

/_ PRIMARY CONTROL SUCH AS GAS VALVE OR ELECTRIC HEAT PRIMARY.

t2,146A

FIG. 9--T8600A,B HEATING-ONLY CIRCUIT USING

AN R8239D ISOLATING RELAY. SEE TABLE

III FOR USAGE.

HEATING-ONLY WALLPLATE

BLA

RESISTANCE _C

HEATER

Z_ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED. 12,138A

=IG. 10--T8600A,B HEATING-ONLY CIRCUIT IN AN

ELECTRIC BASEBOARD OR CEILING

CABLE SYSTEM.

ZONE IZONE 2 ZONE 3 ZONE 4

HEATING ONLY WALLPLATE HEATING ONLY WALLPLATE HEATING ONLY WALLPLATE HEATING ONLY WALLPLATE

RB239A1052

®®

_POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED¸

USE ONE R8239 FOR EVERY FOUR ZONES¸

USE FOR 3_WIRE ZONE VALVE OR DAMPERS¸

zonE2 Iz°NE

VALVE VALVE

OR ) ( _,.PER

DAMPER

MOTOR MOTOR

FIG. 11--T8600A,B CIRCUIT FOR CONTROLLING INCOMPATIBLE OR 3-WIRE ZONE VALVES OR DAMPERS.

HEATING OR COOLING EQUIPMENT IS OPERATED BY AN END SWITCH ON THE ZONE VALVE OR

MOTOR, OR BY A THERMOSTAT IN A MASTER ZONE.

:,,_:/,i_:__,_i_ ' ', _ qi,_ _

j!_, ,:::, _ ,.,,i__,_ :_..... _/,

ZONE 1ZONE 2 ZONE 3 ZONE 4

HEATING-ONLY HEATING-ONLY NEATING.ONLY HEATING-ONLY

WALLPLATE WALLPLATE WALLPLATE WALLPLATE

' l

ZONE 1 ZONE 2ZONE 3 ZONE 4

VALVE OR VALVE OR VALVE OR VALVE OR

DAMPER MOTOR DAMPER MOTOR DAMPER MOTOR DAMPER MOTOR

._ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

L_ USE ONE 38 VA TRANSFORMER FOR EVEnY FOUR ZONES

(HONEYWELL AT72D OR EQUIVALENT). M1376

FIG. 12mT8600A,B; T8602A,B CIRCUIT FOR CONTROLLING HONEYWELL OR COMPATIBLE 2-WIRE ZONF

VALVES OR DAMPERS, HEATING OR COOLING EQUIPMENT IS OPERATED BY AN END SWITCH ON

THE ZONE VALVE OR MOTOR, OR BY A THERMOSTAT IN A MASTER ZONE.

HEATING COOLING WALLPLATE

CO L!G

DAMPEN/ FAI

COOLING

CHANGEOVER

HEATING

DAMPE_

HEATING

CHANGEOVER

_POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REG_LJIRED

/_, CURRENT DRAW FOR W OH Y MUST IBE 0_(18 A OR GREATER;

WOR (Y PLUS G) MUST BE 1.2 A OR LESS¸ tz,l_

FIG. 13--T8600C HEATING/COOLING CIRCUIT IN A

SINGLE TRANSFORMER SYSTEM WITH

GAS HEAT/ELECTRIC COOLING OR ELEC-

TRIC HEAT/ELECTRIC COOLING AND

CHANGEOVER TERMINALS (O,B).

THERMOSTAT CONTROLS FAN IN COOL-

ING ONLY (TYPICAL MULTISPEED FAN

APPLICATIONS).

HEATING-COOLING WALLPLATE

_ DISCONNECT MEANS AND OVERLOAD

POWER SUPPLY. PROVIDE

PROTECTION AS REQUIRED.

CURRENT DRAW FOR W OR YMUST BE 0.08 AOR GREATER;

WOR (Y PLUS G) MUST BE 1.2 A OR LESS. 12,148 B

FIG. 14_T8600C HEATING/COOLING CIRCUIT IN AN

OIL HEATING/ELECTRIC COOLING SYSTEM

WITH CHANGEOVER TERMINALS (O,B).

HEATING TRANSFORMER IS IN OIL PRI-

MARY. ALSO SEE RG. 21 (RC, R TERMI-

NALS).

68-0056--1

ii_: i ¸ i :!:!_:i ::,-ii_/¸::¸'I¸¸_:i_ • • ' ¸¸¸¸ '¸:

HEATING-COOLING WALLPLATE

AIR

COND,

EQUIP.

t.2

POWER SUPPLY, PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

A//_ PRIMARY CONTROL, SUCH AS GAS VALVE OR ELECTRONIC

IGNITION MODULE.

Z_ CURRENT DRAW FOR W OR Y MUST BE 0.08 A OR GREATER;

WOR (Y PLUS G) MUST BE 1.2 A OR LESS. 12_149B

HEATING-COOLING WALLPLATE

_POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED.

Zt2'kSYSTEM SWITCH MUST BE IN COOL POSITION TO

PREVENT DRAIN ON BATTERIES.

Z_,ON COOLING-ONLY APPLICATION, EQUIPMENT MUST

BE POWERED YEAR-ROUND.

CURRENT DRAW FOR Y MUST BE 0.08 A OR GREATER;

Y PLUS G MUST BE LESS THAN 1,2 A. M2079B

FIG. 15--T8600C HEATING/COOLING CIRCUIT USING

AN ISOLATING RELAY WITH CHANGEOVER

TERMINALS (O,B). SEE TABLE III FOR US-

AGE.

FIG. 17--T8600C COOLING CIRCUIT IN SINGLE

TRANSFORMER SYSTEM WITH ELECTRIC

COOLING.

HEATING COOLING WALLPLATE

COOLING AY_

DAMPER/

COOLING

CHANGEOVER

"--1 HEAT,NG"

DAMPER/

HEATING

CHANGEOVER

_24V

/_ DISCONNECT MEANS AND OVERLOADPOWER SUPPLY, PROVIDE

PROTECTION AS REQUIRED,

CURRENT DRAW FOR W OR Y MUST BE 0.08A OR GREATER;

{W PLUS G) OR (Y Pt US G) MUST BE 1.2 AOR LESS )2,I37B

:IG. 16--T8600C SUPER TRADELINE HEATING/

COOLING CIRCUIT IN A SINGLE TRANS-

FORMER SYSTEM WITH ELECTRIC HEAT/

ELECTRIC COOLING AND CHANGEOVER

TERMINALS (O,B). THERMOSTAT CON-

TROLS FAN IN HEAT AND COOL (TYPICAL

SINGLE-SPEED FAN APPLICATIONS). SEE

TABLE IV TO SET FAN OPERATION

SWITCH.

HEATING-COOLING ADD JUMPER

WALLPLATE

-(L10 T)'41_

,,_POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED.

Z_ CONNECT VALVE TO 0 FOR CHANGEOVER ON COOLING,

OR B FOR CHANGEOVER ON HEATING.

Z_ CURRENT DRAW FOR W PLUg G MUST BE BETWEEN 0.080 A

AND 1.2 A. M1377

FIG. 18--T8600C HEATING/COOLING CIRCUIT FOR A

SINGLE-STAGE ELECTRIC HEAT PUMP

WITH CHANGEOVER TERMINALS (O,B).

;:i_I,',: : iii

'_ _ = i i '_t¸ i'i _ i I I dl

HEATING-COOLINGWALLPLATE

p..

/1\ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED,

PRIMARY CONTROL, ._UCN AS GAS VALVE OR ELECTRONIC

IGNITION MODULE.

CURRENT DRAW FOR W OR Y PLUS G MUST 8E BETWEEN 0,08 A

AND 1.2 A.

Z/_ ON TB60OD, HEATING SYSTEM POWER MUST BE ON YEAR-ROUND.

M1382

HEATING-COOLING WALLPLATE

FAN

RELAY AIR

COND.

EQUIP.

_1_ POWER SUPPLY, PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED,

CURRENT DRAW FOR W OR YPLUS G MUST BE BE]BNEEN 0.08 A

AND 1,2 A,

Z_ ON T860OD, HEATING SYSTEM POWER MUST BE ON YEAR-ROUND.

M1380

FIG. 19--T8600C, D HEATING/COOLING CIRCUITIN A

SINGLE TRANSFORMER SYSTEM WITH

GAS HEAWELECTRIC COOLING, RCAND R

TERMINALS.

FIG. 21mT8600C, D HEATINGICOOLING CIRCUIT IN

AN OIL HEATING/ELECTRIC COOLING

SYSTEM. HEATING TRANSFORMER IS IN

OIL PRIMARY, RC AND R TERMINALS.

HEATING-COOLING WALLPLATE

_1_ POWER SUPPLY• PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED

PRIMARY CONTROL, SUCH AS GAS VALVE OR ELECTRONIC

IGNITION MODUL E.

,_\ CURRENT DRAW FOR W OR Y MUST BE 0.08 A OR GREATER;

W OR (Y PLUS G) MUST BE 1,2 A OR LESS.

._ON SYSTEM POWER MUST BE ON YEAR-ROUND,

T6600D, HEATING

M1378

FIG. 20_T8600C, D HEATING/COOLING CIRCUIT IN A

TWO-TRANSFORMER (ONE FOR HEATING,

ONE FOR COOLING) SYSTEM WITH GAS

HEAT/ELECTRIC COOLING, RC AND R

TERMINALS.

HEATING-COOLING WALL.PLATE

POWER SUPPLY. PROVIIDE OISCONNECT MEANS AND OVERLOAD

PROTECTION AS RE_tJlREO.

Z_ PRIMARY CONTROL SUCH AS GAS VALVE OR ELECTRONIC IGNIT_OR

MODULE,

CURRENT DRAW FOR Y MUST BE O.O8 AOR G REATER_

YPLUS G MUST BE LESS THAN t .2 A.

L_ HEATING SYSTEM POWER MUST BE ON YEAI_ROUND FOR T8600D

FIG. 22--T8600C, D HEATING/COOLING CIRCUIT US-

ING AN R8239D ISOLATING SWITCHING

CENTER.

11 68-0056--1

, G ¸ :•

HEATING-ONLY WALLPLATE

1÷ ÷91

POWER SUPPLY• PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

24 Mac TRANSFORMER SLJPPLIEB THERMOSTAT POWER, IF ONE

ADDITIONAL WIRE {C) CANNOT BE BROUGHT TO THERMOSTAT

LOCATION, USE T8600A OR B.

=//_\ FOR MODELS WITH ON AUTO FAN SWITCH. 12,155B

FIG. 23--T8601A,B HEATING-ONLY CIRCUIT IN CON-

TINUOUS PILOT GAS OR CENTRAL ELEC-

TRIC SYSTEM.

HEATING-ONLY WALLPLATE

R8239DIO15

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

_._ 24 VAC TRANSFORMER FOR THERMOSTAT POWER. IF ONE

ADDITIONAL WIRE (C) CANNOT BE BROUGHT TO THERMOSTAT

LOCATION, USE T6600A OR B_

FOR MODELS WITH FAN SWITCH ONLY. _2,1_2B

FIG. 24--T8601A,B HEATING-ONLY CIRCUIT IN AN

OIL SYSTEM.

A A

CONNECTION $86 VR844C

MAIN VALVE MV TH

COMMON MV/PV TR

]

PILOT VALVE IPV TH-TR

$88 MODULE

O25 Vat

MV/PV

L PV

GNO

CONTROLLER

A[A

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

/_ MAXIMUM PILOT BURNER IGNITER-SENSOR CABLE LENGTH:

30 in. IO.B m I .

FACTORY-INS rALLED WIRES, DO NOT REMOVE.

CONTROLS IN TRANSFORMER CIRCUIT MUST _OT BE IN GROUNDED

LEG.

Li_ FOR MObELS WITH ON-AUTO FAN SWITCH.

__VE

-d

TO VR84/_0

PILOT OUTLET

t2,154C

FIG. 25_T8601A,B HEATING-ONLY CIRCUIT IN A HONEYWELL INTERMITTENT PILOT GAS BURNING IGNITION

SYSTEM.

• iiii!iii i il !;ill iii!il:

• _i_/iii ii_!:i=i!_¸:I,i_ii_iiii•_i_i!ii_:iil)i;;

ZONE 1

HEATING-ONLY WALLPLATE

R8239A1052_

®®(

ZONE 2

HEATING_ONLY WALLPLATE

iZONE €

HEATING-ONLY WALLPLATE

_, POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS RECURRED.

USE ONE RB239 FOR EVERY FOUR ZONES,

,_ USE FOR 3-WIRE ZONE VALVE OR DAMPERS.

FIG. 26--TB601A,B CIRCUIT FOR CONTROLLING INCOMPATIBLE OR 3-WIRE ZONE VALVES OR DAMPERS.

HEATING OR COOLING EQUIPMENT IS OPERATED BY AN END SWITCH ON THE ZONE VALVE OR

MOTOR, OR BY A THERMOSTAT IN A MASTER ZONE. FOR HONEYWELL OR COMPATIBLE 2-WIRE

VALVES, SEE FIG. 27.

7ONE 1

HEATING-ONLY

WALLPLATE

ZONE 1

VALVE OR

DAMPER MOTOR

ZONE 2

HEAT]NG ONLY

WALLPLATE

ZONE 2 ZONE 3

VALVE OR VALVE OR

DAMPER MOTOR DAMPER MOTOR

ZONE 3

HEATING-ONLY

WALLPLATE

®@@L

1_, POWER SUPPLY. PROVIDE DISCONNECT MEAN_; AND OVERLOAD

PROTECTION AS REQUIRED.

USE ONE 38 VA TRANSFORMER FOR EVERY FOUR ZONES

(}tONEYWELL AT72D OR EQUIVALENT).

ZONE4

HEATING-ONLY

WALLPLATE

®@@®1

ZONE 4

VALVE OFI

DAMPER MOTOR

M1362

FIG. 27--T8601A,B CIRCUIT FOR CONTROLLING HONEYWELL OR COMPATIBLE TWO-WIRE ZONE VALVES OR

DAMPERS. HEATING OR COOLING EQUIPMENT IS OPERATED BY AN END SWITCH ON THE ZONE

VALVE OR MOTOR, OR BY ATHERMOSTAT IN A MASTER ZONE.

13 68-0056--1

i .

"' _i_ '.'_!, _ ,

HEATiNG-COOLING WALLPLATE

L_ ......

/_\ POWER SUPPLV. PROVIDE DISCONNECT MEANS AN D OVERLOAD

PROTECTION AS REQUIRED,

pR)MARy (_ONTROL SUCH AS GAS VALVE, ELECTRONIC

IGNITION MODULE OR HEATING CONTACTOR

O, B TERMINALS ON SOME MODELS. 12,15_B

FIG. 28--T8601C HEATING/COOLING CIRCUIT IN A SINGLE TRANSFORMER SYSTEM WITH GAS HEAT/ELEC-

TRIC COOLING, OR ELECTRIC HEAT/ELECTRIC COOLING AND CHANGEOVER TERMINALS (O,B).

THERMOSTAT CONTROLS FAN IN COOLING ONLY (TYPICAL MULTISPEED FAN APPLICATIONS).

HEAT{NG-COO LING WALLPLATE

COOLING

CAMPER/

COOLING

CHANGE-

OVER

_. _-H_L_Q_ _2 OIL PRIMARY

POWER SUPPLY. PROVIDE DISCONNECT MEAINS AND OVERLOAb

PROTECXION AS REQUIRED,

2_ 0, DTERMINALS ON SOME MODELS.

AIR

COND,

EQUIP.

_2,156A

FIG. 29--T8601C HEATING/COOLING CIRCUIT IN AN OIL HEATING/ELECTRIC COOLING SYSTEM. OIL PRIMARY

HAS ITS OWN TRANSFORMER.

HEATING-COOLING WALLPLATE /

_!RESSOR

RELAyRE_S_ OR

z/'l_ POWER SUPPLY. PROVIDE blSCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIREC,

CONNECT VALVE TO O FOR CHANGEOVER ON COOLING, OR B FOR

CHANGEOVER ON HEATING. t_,1SB_,

FIG. 30--T8601C HEATING/COOLING CIRCUIT FOR A

SINGLE-STAGE ELECTRIC HEAT PUMP.

FAN CONTROLLED BY THERMOSTAT.

HEATING.COOLING WALLPL_,TE

DAMPER/ FAI

COOLING

CHANGEOVER

24 V

COOLING

CONTACT{:

HEAT{NO

DAMPER/

HEATING

CHANGEOVER

/|\ POWER SUPPLY. PROVIDE CISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

1_,1S9A

FIG. 31--T8601 C HEATING/COOLIPIG CIRCUIT FOR A

CENTRAL ELECTRIC FURNACE/ELECTRIC

COOLING. (TYPICAL SINGLE-SPEED FAN

APPLICATIONS).

:_!i!_i:_ _ _!_ _ '_.'/_;/,ii'_.:_i_I_>/_:_ii__ _ii_ _i/.i:_:>!_.,,_L__'__:_

I (

ALl A I1,v

,ll,..--- Lz--.-LL _ r

HEATING-COOLING WALLPLATE I

COOLING Rill

_POWER SUPPLY, PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS RE{_UIRED.

A PRIMARY CONTROL SUCH A5 GAS VALVE OR ELECTRONIC

IGNITION MODULE. IZ,160A

FIG. 32--T8601D HEATING/COOLING CIRCUIT IN A

SINGLE TRANSFORMER SYSTEM WITH

GAS HEAT/ELECTRIC COOLING.

HEATING-COOLING WALLPLATE

ELA _AN AIF

RELAY COl

A÷,NOT,.@_L._3_-_-- EO,

OIL PRIMARY

//_ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTEDTION AS REQUIRED, iZ,151A

FIG. 33--T8601D HEATING/COOLING CIRCUIT IN AN

OIL HEATING/ELECTRIC COOLING SYS-

TEM. OIL PRIMARY HAS ITS OWN TRANS-

FORMER.

HEATINGJONLY WALLPLATE ii

A POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED.

A MODELS WITH ON-AUTO FAN SWITCH. M1379

FIG. 34--T8602A,B HEATING-ONLY CIRCUIT IN CON-

TINUOUS PILOT GAS SYSTEM.

HEATING-ONLY WALLPLATE

OIL PRIMARY

APOWER SUPPLY, PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED. 12,173A

FIG. 35--T8602A,B HEATING-ONLY CIRCUIT IN AN

OIL SYSTEM.

HEATING-ONLY WALLPLAT E

iiiiiii

ql{,_L 1 °

/L_ (HOT)

RED

RESISTANCE

HEATER

i i

BLACK

BIME'

SWtT(

SWITCH

HEATER

II IIIIIII

_j POWER SUPPLY= PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED¸ IZ.1 _A

FIG. 36_T8602A,B HEATING-ONLY CIRCUIT IN AN

ELECTRIC BASEBOARD OR CEILING

CABLE SYSTEM.

15 68-0056--1

.,III_L 1 =

(HOT)

ZONE1

HEATING ONLY WALLPLATE

®®

ZONEI I

MOTOR

_l_ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED,

ZONE 2 ZONE 3 ZONE 4

HEATING ONLY WALLPLATE HEATING ONLY WALLPLATE HEATING ONLY WALLPLATE

I**1

'll

I ,

I ZONE 4

DAMPER

MOTOR

USE ONE RBZ39 FOR EVERY FOUR ZONES. _USEFOR3-WIREZONEVALVEOROAMPERS.

12,150A

FIG. 37--T8602A,B CIRCUIT FOR CONTROLLING INCOMPATIBLE OR 3-WIRE ZONE VALVES OR DAMPERS.

HEATING OR COOLING EQUIPMENT IS OPERATED BY AN END SWITCH ON THE ZONE VALVE OR

MOTOR, OR BY A THERMOSTAT IN A MASTER ZONE. FOR HONEYWELL OR COMPATIBLE 2-WIRE

VALVES, SEE FIG. 12.

HEATING - COOLING WALLPLATE

HEATING

PRIMARY

CONTROL

L2 L! L1

(HOT) L2

POWER SUPPLY, PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED,

L_ FOR SYSTEMS WHERE THERMOS]AT MUST CONTROL FAN

DIRECTLY IN HEA'IING, SET FAN OPERATION SWITCH TO

ELEC POSITION. USE ONLY ONE TRANSFORMER AND

JUMPER R AND RC.

FOR SINGLE ]RANSFORMER SYSTEM JUMPER R AND RC,

M3_9A

HEATING COOLING WALLPLATE

_POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PRO-

TECTION AS REQUIRED.

_PRIMARY _ONTROL. SUCH AS GAS VALVE OR ELECTRONIC IGNITION

MODULE,

_ CURRENT DRAW FOR W OR Y PLUS G MUST BE LESS THAN ! ,6 A.

IZ,142B

FIG. 38--T8602C SUPER TRADELINE HEATING/

COOLING CIRCUIT IN A TWO-TRANS-

FORMER SYSTEM (GAS HEATING/ELEC-

TRIC COOLING). SEE TABLE IV TO SET

FAN OPERATION SWITCH.

FIG. 39--T8602C HEATING/COOLING CIRCUIT IN A

TWO-TRANSFORMER (ONE FOR HEATING,

ONE FOR COOLING) SYSTEM WITH GAS

HEAT/ELECTRIC COOLING, RC AND R

TERMINALS.

H EATING-COOLING WALLPLATE

24 V

Z_ PQWER SUPPLY, PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED,

PRIMARY CONTROL SUCH AS GAS VALVE, ELECTRONIC

IGNITION MODULE OR HF'ATING CONTAETOR. 12,169B

FIG. 40--T8602C HEATING/COOLING CIRCUIT IN A

SINGLE TRANSFORMER SYSTEM WITH

GAS HEAT/ELECTRIC COOLING OR ELEC-

TRIC HEAT/ELECTRIC COOLING. THERMG_

STAT CONTROLS FAN IN COOLING ONLY

(TYPICAL MULTISPEED FAN APPLICA-

TION).

HEATING-ONLY WALLPLATE

<i----- (HOT)-I1 _ .... -_-J

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

_24 VAC TRANSFORMER FOR THERMOSTAT pOWER.

,_FOR MODELS WITH ON-AUTO FAN SWITCH,

_FQR SINGLE TRANFORMER SYSTEMS, M339A

FIG. 42--T8603A,B HEATING-ONLY CIRCUIT IN A

CONTINUOUS PILOT GAS SYSTEM.

HEATING-COOLING WALLPLATE

_i._Hf aT )lr_ 24 vOiL PRIMARY

<I_'LZ --'11 _

POWER SUPPLY• PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED. 12,170A

FIG. 41--T8602C HEATING/COOLING CIRCUIT IN AN

OIL HEATING/ELECTRIC COOLING SYS-

TEM. HEATING TRANSFORMER IS IN OIL

PRIMARY.

HEATING-ONLY WALLPLATE

Z_ POWER SUPPLY, PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

/_ 24 VAC TRANSFORMER FOR TNERMOSTATPOWER. MaaBA

FIG. 43--T8603A,B HEATING-ONLY CIRCUIT IN AN

OIL SYSTEM.

17 68-0056---1

ii,'_ ¸ _,,,, _ _, •,, " /, ,,

4--elioT1

L2L-_

A LI

ONNECTION SB6 VR_40

A,NVALVE Mv TH

oMMoN M,,,_vT.

'LOTVALV_PV THTR ! I

o!l

HEATING-ONLY WALLPLATE [

LIMIT I ]

_'AN CONTROLLER |I

$86 MODULE

i i

25 Mac q MV

25 Mac I MV/PV --

I PV

GND [-

O345, Q346.

z_ BURNER

IGNITER SENSOR

VR8440 VALVE

PILOT

BURNER

GROUND

POWER SUPPLY. PROVfDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

_ MAXIMUM PILOT BURNER IGNITER-SENSOR CABLE LENGTH:30 in. [0.8 m].

FACTORY-INSTALLED WIRES. DO NOT REMOVE.

l_\ CON1ROLS IN TRANSFORMER CIRCUIT MUST NOT BE IN GROUNDED LEG.

TO VR8440 PILOT OUTLET

L_ FOR MOQELS WITH ON-AUTO FAN SWITCH.

L!_ 2_ VAC TRANSFORMER FOR THERMOSTAT POWER.

Z_FOR SINGLE TRANSFORMER GYSTEMS.

_40A

FIG. 44--T8603A,B HEATING-ONLY CIRCUIT IN A HONEYWELL INTERMITTENT PILOT GAS BURNER IGNITION

SYSTEM.

ZONE 1 ZONE 2 ZONE 3

HEATING-ONLY WALLPLATE HEATING-ONLY WALLPLATE HEATING-ONLY WALLPLATE

/_,_ L1

(HOT)-

4--- L2

RB239A1052

ZONE 4

HEATING-ONLY WALLPLATE

iiiii

ZONE 1 VALVE OR

DAMPER MOTOR

RB222B1067

ZONE 2 VALVE OR

DAMPER MOTOR

_\ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

/'_ USE ONE R82.39 FOR EVERY FOUR ZONES,

R8222B1067

iuu

ZONE 3 VALVE OR

DAMPER MOTOR

RB222B1067

ZONE4VALVEOR

DAMPER MOTOR

24 VAC TRANSFORMER FOR THERMOSTAT POWER.

FOR SINGLE TRANSFORMER SYSTEMS.

M333A

FIG. 45--T8603A,B CIRCUIT FOR CONTROLLING INCOMPATIBLE OR THREE-WIRE ZONE VALVES OR DAMPERS.

HEATING EQUIPMENT IS OPERATED BY AN END SWITCH ON THE ZONE VALVE OR MOTOR, OR BY A

THERMOSTAT IN A MASTER ZONE.

fiill¸ :d:ii i:;!i!i:f fiil!ii ,

: ,!i_,:dii_iL,,I,_:i,_

!ii_iiiii:_: i i ii_J:%&!::!_iil_

ZONE 1 ZONE 2 ZONE 3 ZONE 4

HEATING-ONLY HEATING-ONLY HEATING-ONLY HEATING-ONLY

WALLPLATE WALLPLATE WALLPLATE WALLPLATE

L1A

(NO]

ZONE 1 ZONE 2 ZONE 3

VALVE OR VALVE OR VALVE OR

DAMPER MOTOR DAMPER MOTOR DAMPER MOTOR

Z_ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED.

z_ TRANSFORMER VA RATING DETERMINED BY CONNECTED LOAD;

USE MULTIPLE TRANSFORMERS IF NEEDED,

ZONE 4

VALVE OR

DAMPER MOTOR

M1375

FIG• 46--T8603A,B CIRCUIT FOR CONTROLLING HONEYWELL OR COMPATIBLE TWO-WIRE ZONE VALVES OR

DAMPERS• HEATING EQUIPMENT IS OPERATED BY AN END SWITCH ON THE ZONE VALVE OR

MOTOR, OR BY A THERMOSTAT IN A MASTER ZONE.

HEATING*COOLING WALLPLATE

AL_ --A

_c"ol_-II'll]_ V

| PRIMA

A L,

L22_ _--v,

]

(

COOLING

CONTACTOR

/1\ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED,

A PRIMARY CONTROL SUCH AS GAS VAI VE. ELECTRONIC

IGNITION MODUI E OR HEALING CONTACTOR.

A 24 VAC TRANSFORMER FOR THERMOSTAT POWER.

NOTE: FOR SUPER TRADELINE MODEl, FAN OPERATION

SWITCH (4A) SHOULD BE SEI FOR CORRECT FAN

OP lION AS INSTRUCTED IN TABLE IV MI374

FIG. 47--T86030 HEATING/COOLING CIRCUIT IN A

SINGLE TRANSFORMER SYSTEM WITH

GAS HEAT/ELECTRIC COOLING, OR ELEC-

TRIC HEAT/ELECTRIC COOLING. THERMO-

STAT CONTROLS FAN IN COOLING ONLY

OR HEAT AND COOL (TYPICAL MULTI-

SPEED FAN APPLICATIONS).

HEATING4COOLING WALLPLATE

_ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED.

/_24 VAC TRANSFORMER FOR THERMOSTAT POWER.

NOTE: FOR SUPER TRADELINE MODEL. FAN OPERATION

SWITCH (4A) SHOULD BE SET FOR CORRECT FAN

OF E RATION AS INSTRUCTED IN TABLE IV. Mi373

FIG. 48--T8603C HEATING!COOLING CIRCUIT IN AN

OIL HEATING/ELECTRIC COOLING SYS-

TEM. OIL PRIMARY HAS ITS OWN TRANS-

FORMER.

19 68-0056--1

HEATING-COOLING WALLPLATE

(HOT)

/1\ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED

_ 24 VAC TRANSFORMER FOR THERMOSTAT POWER.

_FOR HOOKUP TO SYSTEM TRANSFORMER WHEN SEPARATE

TRANSFORMER FOR TRERMOSTAT POWER IS NOT USED.

NOTE: FOR SUPER TRADELINE MODEL, FAN OPERATION

SWITCH (4A) SHOULD BE SET TO NON

ELEC POSITION, (SEE TABLE 2}, M334A

The room air temperature will normally vary slightly

from the comfort temperature setting with the cycling of the

furnace orair conditioner.The equipment cycles offand on

as room temperature approaches the set point.

The cycle rate of this thermostat is set for heating at six

cycles per hour and for cooling at three cycles per hour as

shipped from the factory. The cooling cycle rate can not be

adjusted. The heating cycle rate can be adjusted byturning

one or both cycle rate adjustment screws located on the

back of the thermostat. See Fig. 50. The screws should

only be backed out about one-half to one turn, or be turned

in until tight.

ADAPTIVE INTELLIGENT RECOVERY_'_/

CONVENTIONAL RECOVERY CONVERSION

The thermostat is factory-set for Adaptive Intelligent

Recovery _, but may be converted to conventional recov-

ery using screw 3A on the back of the thermostat as

indicated in Fig. 50.

With Adaptive Intelligent Recovery _, the room will

reach the comfort temperature at the exact time pro-

gramm ed into the thermostat. The control temperature will

increase gradually, and turn the equipment on and off

several times to reach the comfort temperature slowly and

on time.

With conventional recovery, the start time should be

programmed to be earlier than the desired comfort time.

TIMFJTEMPERATURE CONVERSION

(SOME MODELS)

The display readout may be converted between 12 and

24 hour clock or °C and °F using screws 2A and 2B as

indicated in Fig. 50.

FIG. 49--T8603C HEATING/COOLING CIRCUIT FOR

ELECTRIC HEAT/ELECTRIC COOLING OR

GAS HEAT/ELECTRIC COOLING. THERMO-

STAT CONTROLS FAN IN COOL ONLY

(TYPICAL SINGLE-STAGE FAN APPLICA-

TIONS). TWO SYSTEM TRANSFORMERS

PLUS THERMOSTAT SUPPLY TRANS-

FORMER SHOWN.

CYCLE RATE ADJUSTMENT

NOTE: MOST APPLICATIONS WILL NOT REQUIRE A

CHANGE IN CYCLE RATE.

FAN OPERATION SWITCH

SUPER TRADELINE models include a fan operation

switch on the back of the thermostat, on the lower left

corner (Fig. 50). See Table IV below to determine correct

setting of fan operation switch.

The fan operation switch in the SUPER TRADELINE

models is factory set to the NON ELEC. position. If

the system requires direct thermostat control of the

fan in heat mode, the switch must be setto the ELEC.

position. See Table IV.

TABLE IV-SUPER TRADELINE FAN OPERATION SWITCH SETTING.

FAN OPERATION

FAN OPERATION SWITCH SETTING (4,6,) FIG. 50 COMMENTS

Fan controlled directly by Set to ELEC. position. Use only 1 system transformer;

thermostat in heat mode jumper R and RC.

(typically electric furnaces).

Fan has independent control in Set to NON ELEC. position System may have 1 or 2

heat mode (typically gas, oil transformers; if 1 transformer,

and some electric furnaces), jumper R and RC.

RECOVERY

SELECTION _3A

ADAPTIVE ' IN

INTELLIGENT _ , Y SETTING)

_CONVENTIONAL __ _OUT I_ "fO 1 TURN

S,STEMd"

OUT It2 OUT 1f2

TO 1 TURN TO 1 TURN

IN OUT lz2

TO 1 TURN

-- (FACTORY SETTING)

OUT 1/Z IN

TEME/rEMP

DISPLAY

24 HR

12HR

o¢

o F

G_'!AVITY

At_AT EIq

HOT

WATER

GAS/OIL

WARM AIR

ELEOTRhC

WARM AIR

A SCREWS 2A, 2B AVAILABLE ON SOME MODELS ONLY.

Z_ SWITCH 4A AVAILABLE ON SUPER TRADELINE MODELS ONLY.

M2082B

FIG. 5D--CYCLE RATE ADJUSTMENT.

INSTALLING BATTERIES

On the T8600, T8601 and T8603 thermostats, three

AAA alkaline batteries are provided as backup to prevent

program loss in case of power outage. Batteries are

included with thermostat. Install batteries in back of

thermostat as shown in Fig. 51. Without battery backup,

the program will remain about 30 seconds in event of

3ower loss. IMPORTANT

•When batteries are first installed in the T8600,

T8601 and T8603, the display will flash -AC until

the thermostat is powered from the system wir-

ing.

If AC power is lost during operation, the display

will show -AC instead of temperature.

On the T8602 Thermostat, power is supplied for the

thermostat by three AA alkaline batteries. Batteries are

included with thermostat. Install batteries in back ol

thermostat as shown in Fig. 51. The display will flash 1:00

PM and room temperature.

When the batteries are low, the thermostat display will

flash REPL BAT. If device has system switch, set to OFF.

Re move the thermostat from the wallplate and install three

new alkaline batteries. Install new batteries within approxi-

mately 30 seconds from time the batteries are removed to

prevent program loss and necessity to reprogram.

IMPORTANT

On the T8602, the low battery warning will be dis-

played about two months before batteries are dead.

When the batteries are dead, the system will shut

down. After batteries are replaced, thermostat will

require reprogramming.

OOC

_ O0

_'_J BATIE RY

PLACEMENT

M2OTS (NOTE CORRECT PLUS

AND MINUS DIRECTION)

FIG. 51--BATTERY PLACEMENT.

Power Outages (T8600, T8601, T8603 ONLY)

Backup batteries will hold the programming and keep

the display on during most power outages. Once the power

is restored, the system will resume normal operation.

If the display goes off when power is lost, either the

backup batteries need to be replaced, or are not installed.

When power is restored, the display will flash 1:00 PM to

remind you to reprogram; will control at preprogrammed

temperature until then.

MOUNTING THE THERMOSTAT

Hang the thermostat on the tabs at the top of the base

(Fig. 52a). Swing down and press on lower edge until

thermostat snaps in place (Fig. 52b). Open cover, and

tighten the captive mounting screws (Fig. 52c).

When 24 V system power is present on T8600, T8601,

T8603, the room temperature will be displayed.

SETTING DAY AND TIME

Set present day and time, as follows:

Press _.

Press TIME _or |to set the current time.

Press _.

Press C_ to set the current day. Each press of the

key advances the display one day.

NOTE: On the T8600, T8601, T8603, when 24 V is first

applied to power unit, display will flash 1:00 PM and 32°

for a minute or less, followed by 1:00 and the room tem-

perature tlashing.

21 68-0056--1

iil i• ¸ ,!!!i! •¸¸¸

;I 'ii', :i/; ,: !{i _''. .... '

bll

!2,18OB

FIG. 52--MOUNTING THERMOSTAT ON WALLPLATE.

On the T8602, when thermostat is first turned on, the

display will read 1:00 PM and room temperature. It will go

off for only a few seconds, then begin to flash on and off.

•check to see that heat or cool system power is on

(T8600, T8601, T8603).

•check voltage between R and W or RC(R) and Y on

the T8600, between R and C on the T8601, between

C and B/C on the T8603; should be 24 to 30 Vac.

Display will show -AC if no 24-30 Vac.

•check for fresh and correctly installed batteries in the

T8602.

If the display will not come on,

•check mounting of thermostat to wallplate. If loose or

misaligned, remove thermostat and reinstall on the

wallplate, making sure it is firmly attached.

iiiiiiiii'il:iii iii iiiiiiiiii iiii i!!iiiii!iiiiiiiili!!i!!ii iiiiiii !! iiii! ! !U ii ii!i ii!!iii i!! iii!i!i iii iii!! ii iii!iiiiiiii 1ii ii iiii iiii ! iiiiiiiiii i i i

NOTE: On models without system or fan switch, disregard

instruction regarding moving of switch.

HEATING

Move the system switch to HEAT or AUTO and the fan

switch to AUTO. Press WARMER key until the setting is

about 10°F [6 °C] above room temperature. Heating

should start, and the fan should run (may be a short delay

on forced air systems). Press COOLER key until the

setting is about 10° F [6 ° C] below room temperature. The

heating equipment should shut off, followed by the fan.

NOTE: On an AUTO changeover thermostat (T8600D,

T8601 D, T8602D), the cooling temperature must be set

at least 3 °F [2 ° C] above the heating temperature, or

display will flash.

COOLING

Do not operate cooling if outdoor temperature is

below 50°F [10°C]. Refer to manufacturer's recom-

mendations.

NOTE: When cooling setting is changed, thermostat will

wait up to 5 minutes before turning on the air condi-

tioner. This delay protects the compressor.

Move the system switch to COOL and the fan switch to

AUTO. Press COOLER key until the setting is about 10°F

[6 ° C] below room temperature. The cooling equipment

and fan should start. Press WARMER key until the setting

ili!ili!: ii !ii!i!i i:: i ili!ii illil

:i: _ ill:! ,_,i_: : i_!::

• _ _ !!_!iii!_!!i!_!I:I!_ iiii _i i,_

is about 10 °F [6 °C] above room temperature. The cooling

equipment and fan should stop.

NOTE: On an AUTO changeover thermostat (T8600D,

T8601 D, T8602D), the heating temperature must be set

at least 3° F [2° C] below the cooling temperature, or

display will flash.

FAN

Move the system switch to OFF, and the fan switch to

ON. The fan should run continuously. When the fan switch

is in the AUTO position, fan cycles with the heating or

cooling system.

INSTALLER SELF-TEST (optional)

IMPORTANT

Five minute time delay on cooling does not function

during self-test.

Perform the following test as a check of all thermostat

functions, ff thermostat does not respond as indicated,

thermostat must be replaced.

1. Press AHEAD and BACK keys at the same time.

While holding keys down, all segments of the display

should be on Fig. 53).

2. Set system switch to OFF, where applicable. Press

AHEAD and BACK and PRESENT SETTING keys at the

same time to enter self-test.

3. Press each key as listed below, and look for re-

sponses listed, as key is held down and released.

PRESS THIS KEY: KEY DOWN

PRESENT SEFrlNG 15

SKIP NEXT PERIOD

CHANGE TO LAST

PERIOD 03 blank

COOLER 02 blank

WARMER 06 blank

BACK 04 blank

AHEAD 05 blank

RETURN 00 blank

LEAVE 01 blank

SLEEP 08 blank

WAKE 12 see note b

following

SET HEAT/COOL 09 blank

DAY 13 micro-

processor

mask

number and

revision

number

HOLD 10 blank

SET PRESENT DAY/ see note c

TIME 14 following

RUN PROGRAM 11 normal

operating

display

LOOK FOR THIS RESPONSE:

KEY

RELEASED

see note a

following

07 blank

SUN MON TUEWEDTHU FRI SAT COOL ONHEATON

WAKELEAVERETURNSLEEP TEMPORARY A []

M40A

FIG. 53--ALL SEGMENTS ON DISPLAY.

elf the system switch is in COOL or AUTO, the cooling

system and system LED come on when the key is re-

leased. Press and release to turn cooling system and LED

off.

Do not operate cooling if outdoor temperature is

below 50°F [10 ° C]. Refer to manufacturer's recom-

mendations.

bA four-digit code number will appear when the key is

released. The four digits of the code represent the follow-

ing options.

FIRST HEATING CYCLES PER HOUR

DIGIT AT 50% ON TIME SET FOR

0Gravity Air/Water

2 Hot Water

4 Electric Warm Air

6 Gas/Oil Warm Air

SECOND

DIGIT

CLOCK

(HR.)

DEGREES

RECOVERY

TYPE

Conventional

Adaptive IntelligentTM

Adaptive Intelligent TM

Conventional

Adaptive IntelligentTM

THIRD THERMOSTAT SYSTEM SWITCH

DIGIT TYPE POSITION

0 Heat/Cool Off or Auto

1 Heat Only Off

2 Heat/Cool Cool

4 Heat/Cool Heat

5 Heat Only Heat or No Switch

23 68-0056--1

FOURTH

DIGIT THERMOSTAT

T8602

T8600, T8601, T8603

AUTO OR

MANUALCHANGEOVER

Manual or Heat Only

Auto

Manual or Heat Only

Auto

SYSTEM SWITCH

All Positions

Heat, Off, Cool

Auto

All Positions

Heat, Off, Cool

Auto

elf the system switch is in HEAT or AUTO, the heating system and system LED come on when the key is released. Press

and release again to turn heating system and LED off.

•Peopleperceivetemperaturefromavarietyofsources,

not only from the air in the room, but also from their

surroundings--walls, windows and furnishings.

•Humanbeingsfeeldifferencesintemperatureasslight

as two degrees Fahrenheit.

• Common household thermometers and standard

thermostats sense only air temperature, which may or may

not reflect how hot or cold the room actually feels to a

human being.

• This thermostat reads the temperature of the wall as

well as the air--and responds to temperature changes as

little as one degree Fahrenheit--so room temperature is

more likely to "feel right".

THE OPTIMUM COMFORT AND ENERGY SAVINGS SOLUTION

•This thermostat is actually a small but powerful com-

puter. When calculating the exact time to turn on your

furnace or air conditioner, it considers (1) air temperature,

(2) the temperature of the wall and (3) when you want the

comfort temperature established.

• DuringAdaptive IntelligentRecovery TM thethermostat

increases the control temperature gradually and turns the

equipment on and off several times to save energy by

avoiding "overshooting" the comfort temperature. See the

current control temperature anytime during recovery by

pressing the PRESENT SETTING key. On some models,

beth the SYSTEM and ENERGY SAVING lights may be lit

at the same time during recovery.

• This "smart" control learns from experience. Each day

Sy_lem Opera,rig ,;:-:1-"

InEnergy 8avirq_ Mode .::,""

• J

V I I I

-if---- SAVINGS ,_ _ RECOVERY FROM ENERGY _AVING$

PERIOD TIME

it checks how closely it "hit the target" and adjusts the

recovery start time accordingly.

It typically takes four to eight days after installation for

this thermostat to adjust to the weather, life style, home

construction and heating/cooling system. The thermostat

calculates the LEAVE/RETURN recovery separately from

the SLEEP/WAKE recovery.

• With this thermostat, choose Adaptive Intelligent Re-

covery TM or conventional recovery. Use Adaptive Intelli-

gent Recovery TM to choose the exact time that the room

reaches comforttemperature. Use conventional recovery

to choose the exact time furnace or air conditioner comes

on to start recovery.

TNE THERMOSTAT USES THE SAM ESCHEME TO RETURN GRADUALLY

TO LOWER COMFOF_T TEMPERATURE DU_NG TF_E COOLING SFJ_ON.

This thermostat includes a screw on the back marked

"3A", allowing for the Adaptive Intelligent Recovery_/con -

ventional recovery choice.

This thermostat was shipped from the factory with the

screw positioned for Adaptive Intelligent Recovery TM .The

installer may have left the screw in this position, or may

have changed it to conventional recovery. Before pro-

gramming, it is important to know for which recovery

method the thermostat has been set.

• With Adaptive Intelligent Recovery TM, the dwelling will

reach the comfort temperature at the exact time pro-

grammedinto the thermostat. See page 24 for detailed

explanation of Adaptive Intelligent Recovery TM .

•With conventional recovery, the programmed time will

mark the start of recovery; therefore, program the start

time to be earlier than the desired comfort time. It may

require some trial and error to arrive at the best starting

time, and the best starting time will vary as the seasons •

change.

To determine which type of recovery is set into the

thermostat, make sure thermostat is powered with fresh

batteries, or is mounted and powered on the wall (see page

22).

Press LRRq_U_AU_key. •

Check thermostat display. I 70° I

I.LI U

INDICATES

THERMOSTAT IS SET

FOR CONVENTIONAL

REGOVEF_Y

ff the E3 shows in the lower right-hand corner (see

illustration), the thermostat is set for conventional re-

covery. For Adaptive Intelligent Recovery TM, remove

thermostat from wallplate, turn screw 3A (on back of

thermostat) clockwise ('_ until it bottoms. DO NOT

OVERTIGHTEN.

Ifthe [] does not show, the thermostat is set for Adaptive

Intelligent Recovery TM. For conventional recovery,

remove thermostat from wallplate, turn screw 3A (on

back of thermostat) out _ 1/2 to 1 turn.

STEP1

SETTHE CURRENT DAY AND

TIME

You can program this thermostat

either on the wall or in hand.

I '°° I

Press and release. The display f.u uP_

shows 1:00 PM Mon. ,0,

Press and hold until the current day H__j'r7upMr7 J

appears in the display ....

Always press the keys with your

fingertip or similar blunt tool Sharp

instruments like a pen or pencil

point can damage the keyboard.

NOTE: Check the glossary, page

33, for definitions of unfamiliar

words.

Press and hold until the current time

appears in the display. Be sure AM

or PM appears as desired.

The current day and time are now

programmed. Go on to Step 2.

I -f- "7 J

_._7CPM

TUE

IMPORTANT

Before beginning STEP 2, determine if thermostat is set for Adaptive Intelligent Recovery TM or conventional

recovery. See pages 24-25.

If set for Adaptive Intelligent Recovery TM, program the times for when home should be comfortable. The thermo-

stat will decide how early to begin the temperature changes.

If set for conventional recovery, program the times earlier, allowing home to reach the comfort temperature by

the time owner is home or wakes up. Some trial and error may be required to arrive at the best starting times.

STEP2

SETTHE PROGRAM SCHEDULE

AND HEA_NG TEMPERATURES

Start by programming the WAKE

time and temperature for weekdays.

The thermostat requires a program

for WAKE. Program LEAVE,

RETURN and SLEEP or not, as

desired.

Press and release. Note that the

display shows WAKE and the

preprogrammed time and tempera-

ture.

If system has air conditioning and

the display reads COOL, press and

release to switch to HEAT.

I5.,30,,M

°,............l °J

• J

I60

K V,AK£,_3_TUF _#p_THU Fnl 14_T

25 68-0056--1

NOTE:ThedisplayshowsAdaptive

IntelligentRecovery_ settinginthe

followinginstructions•

ProgramtheLEAVEtimeand

temperature,ifdesired.

NOTE:Ifdesired,cancelthe

LEAVE,RETURNorSLEEP

programbyholdingdowntheperiod

keyuntilthetimeandtemperature

disappearfromthedisplay.

ProgramtheRETURNtimeand

temperature,ifdesired•

ProgramtheSLEEPtimeand

temperature,ifdesired.

IfdisplayreadsSATorSUN,press

andholduntilMONTUEWEDTHU

FRIappears.

Pressandholduntilthedisplay

showsthedesiredstartingtime.

Pressandholduntilthedisplay

showsthedesiredtemperature.

Ifthedisplaystartstoblinkwhile

holdingdownTEMPERATURE

WARMERorCOOLER,thesetting

limithasbeenreached.Ifthermo-

statcanswitchautomatically

betweenheatingandcooling,the

heatingtemperaturemustbeat

least3degreesbelowtheaircondi-

tioningtemperature.Forexample,if

thecoolingsettingis75"F,the

maximumheatingsettingis72°F.

Pressandrelease•Thedisplay

showsLEAVE,butnotimeor

temperature.

Press and hold until the display

shows the desired starting time.

Press and hold until the display

shows the desired temperature.

Press and release• The display

shows RETURN, but no time or

temperature•

Press and hold until the display

shows the desired starting time.

Press and hold until the display

shows the desired temperature.

Press and release. The display

shows SLEEP and the prepro-

grammed time and temperature.

Press and hold until the display

shows the desired starting time•

• -_mo

I A° ,-,I

I"°°°'g°l

/,u t.,J

v#a_E

,_,,_A. 72_I

_.u LJ

_ IuE w_T_J R_I

LE_E

8:30 _" 60_]

M_ fUE'_[_TNU Fr_ I_AT

[E,_E

J ::]D" ,SS_'[

_e_rue _D _J FRI _r_tr

_tuR_

I'°°° 1

,_-u_oM 80_

S_F_

[ "-"_ 80_J

Set the SATURDAY schedule. Use

the same procedure as for week-

days.

Pressandholduntilthedisplay i _n'_n_u._uPM6_° Ishows the desired temperature. ,_,_w_,,u_

S_EP

on the display, tu.u upM

Press WAKE, LEAVE, RETURN or

SLEEP to select the time period.

Use the AHEAD/BACK keys to set

the time and the WARMER/

COOLER keys to set the tempera-

ture.

Sel the SUNDAY schedule. Use the

same procedure as lor weekdays. onPreSStheanddisplay.hOlduntil SUN appears J ,_,f_r'_.mu.uu_Mn_,,,6 ,_ J

Press WAKE, LEAVE, RETURN, or

SLEEP to select the time period.

NOTE: Some models will show -AC,

indicating the thermostat is operat-

ing on backup batteries until the

thermostat is mounted on the

wallplate and the system is pow-

ered.

Use the AHEAD/BACK keys to set

the time and the WARMER/

COOLER keys to set the tempera-

ture.

The setting ot the program sched-

ule and heating temperatures has

been completed. If system has air

conditioning, go to Step 3.

If system d°es n°t have air c°ndi" I JJ'an ]

tioning, press and release to start 7_, tu,_ - _

the program. Go to Step 4. _'

STEP 3

SET THE COOLING TEMPERA-

TURES, IF SYSTEM HAS AIR

CONDITIONING

The program times are the same for

both heating and cooling. Only the

cooling temperatures need to be

programmed if thermostat has

already been programmed for

heating. To set times as you

program the cooling temperatures,

use the TIME AHEAD and BACK

keys as described in Step 2.

First program the WAKE tempera-

ture for weekdays.

Press and release. The display

shows WAKE and the time and

temperature programmed for

heating.

i8:00 f LI_

Press and release so COOL shows I-f._7r3AM ]_,J

on the display, along with the _-u u

SUN cr_

preprogrammed cooling tempera ....

ture.

-I.n I--IAM

If display reads SAT °r SUN' press I ,-uu 78_J

and hold until MON TUE WED THU L,_,_ .............. j

FRI appears.

27 68-0056--1

Pressandholduntilthedisplay

showsthedesiredtemperature.

Ifthedisplayblinkswhileholding

downTEMPERATUREWARMER

orCOOLER,thesettinglimithas

beenreached.Ifthermostatcan

switchautomaticallybetween

heatingandcooling,thecooling

temperaturemustbeatleast3

degreeshigherthanthecorre-

spondingheatingtemperature.For

example,iftheheatingsettingis

70°F, the minimum cooling setting

is 73° F.

If a lower cooling setting is desired,

the heating setting must lirst be

lowered accordingly.

I.LI U

Program the LEAVE temperature, if

desired.

Press and release. The display

shows LEAVE, the time pro-

grammed for heating, and 78°F.

_TL_ _*B3 TN/E_ql

Press and hold until the display

shows the desired temperature. va_l[_u_wee mu F_

Program the RETURN temperature,

if desired.

Press and release. The display

shews RETURN, the time pro-

grammed for heating, and 78° F. _BU_

[o.ooo]

_.,I•I,_1 I,_t pM #'

I_N IUL _ IHU P_I

IU'_ UPM

I U'J UPM

SLiP

I'1__1 I__IpM

_L_Ie A

Press and hold until the display

shows the desired temperature.

Program the SLEEP temperature, if

desired. Press and release.

Set the cooling temperatures for the

SATURDAY schedule. Use the

same procedure as for weekdays.

Press and hold until the display

shows the desired temperature.

Press and hold until SAT appears

on the display.

Press WAKE, LEAVE, RETURN or

SLEEP to select the time period.

Use the WARMER/COOLER keys

to set the temperature.

Set the cooling temperatures for the

ISUNDAY schedu e. Use _he same

inr_€_dure as for weekdaYs. Press and hold until SUN appears tlsu" _ +]/

on the display. _ i.ul'nupon 7 _°o

St_E_ _

Press WAKE, LEAVE, RETURN or

SLEEP to select the time period.

Use the WARMER/COOLER keys

to set the temperature.

The programming of the cooling

tem_eratures has been completed.

NOTE: Some models will show -AC,

indicating the thermostat is operat-

ing on backup batteries until the

thermostat is mounted on the

waltplate and the system is pow-

ered

Press and release to start the

program.

Go to Step 4. I_VE

STEP 4

SET THE SYSTEM AND FAN

SWITCHES, IF THERMOSTAT

HAS THEM. [lJ

Depending on thermostat model,

some or all of the switch positions

shown may be available. Note the

positions provided on thermostat,

then set the switch(es) as desired.

First set the fan switch.

FAN ON: The tan runs continu-

ously. Use for improved air circula-

tion during special occasions or for

more efficient electronic air clean-

ing.

FAN AUTO: Normal setting for

most homes. The fan goes on and

off with the air conditioner in

summer. In winter, the fan on most

systems starts a few minutes after

the furnace comes on. Itstops a

few minutes after the furnace goes

off. The fan starts and stops with

the furnace in some electric heat

systems.

ON AUTO

• o

ON AUTO

FAN D Q

Then set the system switch. HEAT: The thermostatcontrols HEATOFFCOOLAUTO

your heating system. " " " "

OFF: Both the heating and cooling HEATOFF COOL AUTO

systems are off. " * *•

U[_J

COOL: The thermostat controls HEATOFF COOL AUTO

your air conditioning system. • " • •

R_ad on to learn _bout the operat-

ing flexibility that makes this

thermostat THE SMART CHOICE.

AUTO: The thermostat controls

either heating or air conditioning

system, depending on room

temperature.

The programming of the thermo-

stat isfinished.

If thermostat was removed from the

wall to program, replace it following

the procedure on page 22.

HEAT OFF COOL AUTO

•I• •

29 68-0056--1

' :::::: :!_:_'!:::!::!! :!!: ;:_3_:;!::$::!3!:!3i;!3i::i;!:_i;i;;::::;;_.;_: :':;;+:+:':t +:':':':::;:;::':':;;:_;:+:'×::'_;:':_:_':'_::÷_x: :;_:._,-'----:-'.';;!" "'>_"-.::_:_"-_'-'-_"_'_'-_" •.:_;,,,,,:_-.v.: -. :+.- _:::._,...,._.,-...;.....; :-....;: :_;::::::_.::_::_::!:!:!Si:!:i::;;;;;;_;;::;;;: _;

TEMPORARILY CHANGING THE

PROGRAM

These features allow the program to

be custom-tailored for those times

when someone comes home early,

or stays up late, or plans to be out

for the evening.

To keep the current temperature

through the next program period:

To go back to the temperature of

the previous program period:

Press and release. The name of the

period to be skipped will flash in the

display until the next regularly

scheduled period starts.

Press and release. The display will

show the name of the previous

period and flash "temporary" until

the next regularly scheduled period

starts.

IPaPOPA_¥

I _.u_ 7n_I

To temporarily raise or lower the

temperature for the current period

only:

Press and hold until the desired [

temperature is reached. The display t

will flash "temporary" until the next

programmed time period starts.

-, _1

_EU_ _e_T J

To change back: Press and release to cancel any of {_;___pM ]_o}

the temporary settings. _,,_,_

PERMANENTLY CHANGING THE

PROGRAM

If schedule changes or a different

temperature is desired, it is possible

to update any soiling without

affecting the rest of the program•

Press and release the desired

period key.

Press and hold until the desired

schedule day shows on the display.

Press and held the Time or

Temperature keys until the display

shows the desired new program.

Press and release to return to

normal operation.

OPERATING THE THERMOSTAT

MANUALLY

This feature is particularly useful

when going on vacation or other

extended absence. It does not

cancel the program.

Press and release.

Press and hold to change the

temperature setting. After a few

seconds the display will show the

current temperature.

"_n° I

It ! I

Press and release to check the

temperature setting.

Press and release to cancel manual

control.

NOTE: Moving the system switch

also cancels hold.

CANCELING PROGRAM

SE'nINGS

The thermostat requires time and

temperature settings in the WAKE

period, but any of the others can be

canceled. Weekday, Saturday and

Sunday settings are canceled

separately.

Press and hold the desired period

key until the time and temperature

clear from the display (about 3

seconds).

Press and release to return to

normal operation.

[ °]

M_ _u_WE_r_u_ HF_

S: 8,-°,°]

CHECKING THE PROGRAM

TIMES AND TEMPERATURES

It is possible to check all the stored

settings without affecting the

permanent program.

Press and release the desired

period key. The start time and

temperature setting will appear on

the display.

"-' S

I I_1",.._ UPM .E',_ J

..........22;'

Press and release to display the

next daily time and temperature for

that period.

Press and release to return to

normal operation.

I'LJ UPMs_ '

SL_

CHECKING THE CURRENT

TEMPERATURE SETTING

Press a single key to compare

current room temperature to the

settings at any time.

Press and release. The display will |

show the current temperature [

setting for several seconds, then

revert to the room temperature.

Applicable if thermostat is set for

Adaptive Intelligent Recovery_:

During recovery from energy

savings, the setting displayed will

not match the programmed setting.

This is because the thermostat

gradually changes the temperature

setting during recovery to provide

most efficient use of the heating or

cooling equipment.

31 68-0056--1

Startthesystembysettingthethermostatandobservingsystemresponse.Ifproblemoccurs,establishsymptomand

usethefollowingtroubleshootingcharttocheckforpossiblecauseandaction.

SYMPTOM POSSIBLE CAUSE ACTION

[ROOM TEMPE RATU RE DISPLAY i__ _ _I CHECK POWER TO FURNACE OR AIR CONDITION ER"

NO ac POWER TO THERMOSTAT - ON-OFF SWITCH

IS -AC (T8600, TB601, T8609) - FUSE OR CIRCUIT BREAKER

- OOSE 24 V CONNECTION

-AT THERMOSTAT

-ATFURNACE/AIR CONDITIONER

-iNCORRECT WIRING

-CHECK WIRING DIAGRAM

[_ Ft_tNO ac POWER TO THERMOSTATi_- [ ON OFF SWITH "

FURNACE OR AIR ] FUSE OR ClRcCuIT BREAKER

CONDITIONER CHECK POWER TO FURNACE OR AIR CONDITIONER

ON'T OPERATE

J- LOOSE 24 VCONNECTION

-AT THERMOSTAT

- AT FURNACEJAIR CONDITIONER

- INCORRECT WIRING

- CHECK WIRING DIAGRAM

[ THERMOSTAT INOPERATIVE t_I_[CONOtJ CT SELF-TEST; BBE CI4ECKOUT.

PRESENT SETTING TOO _[ADJUST ]EMPERATLIRE _Y PUSHING WARMER/COOLER

LO_,HIGH I "I*EYS"

I SYSTEM SWITCh4 ON THE RMO- _{ RESET THERMOSTAT SYSTEMSWITCN'STATIN WRONG POSITION

?Ii r

ON COOLING I_-_/

MINIMUM-OFF TIMES IN WAIT 5-10 MIN. OR USE SELF TEST IN THERMOSTAT,

THERMOSTAT iN OPERATION SEE CHECKOUT.

/£

[INCORRECT WIRING

J SYSTEM NOT COMPATIBLE

(T8600)

J FURNACE OR AIRCONDITIONER INOPERATIVE

_[CHECK CIRCUIT DIAGRAM, I

IPART,ALDISPLAY _ INOPERATIVE THE RMOSTA-T--_I--_ RE'PLACE THERMOSTAT. i

{NOOISPLAY i-- NO OWERTOT.E.MOSTATi---* C.EOKT.AT.EATOROOOLSYBTEMPOW RISO.|

ITNHcEoRRMROE%TTAL_%_L _NATsE?_[SEEI "L MOUNTING'INSTALLATION INSTRUCTION_ FOR CORRECT i

NyOoORVERY SHORT FURNACE II"'bJ SYSTEM NOT COMPATIBL E(T8600, r 'E%T . : 'NSTALLATON:i

IPR%Sc%NRTAST_tT INS A P PE A R S _{" TMI4rl)F_ OS TA T I_ IN R EC 0 M ERY _'l N ENAO['RNM_tLO;t ta_TIEaNRT: _%%OESE' TA; ETMUpRENRaONR E i_)i_?G IE/ICT_)iC iii yi_s=D EDT ,BMyEpSUS H [N G

EXPECTED ON WEEKENDS THERMOSTAT NOT REPI_OGRAM FOR WEEKENDS PER INSTRUCTIONS I

NEEDS TO BE ADJUSTED ON A ...... USED TO ADJUST CHANGE IN PROGRAM. WARMER/COOLER KEYS ARE

REGULAR BASIS TEMPERATURE TEMPORARY UNLESS PERIOD KEY IS PRESSED FIRST.

[LELOA%BIANqTERYINDICATOR IS /'1'NsTALLEDi_IIJRATTERIESAREINO°RREOTLY_RE_OVEANDREPLACEPERMARKtN_SONT.ER_OSTA_I

BATTERIES ARE DEAD i_" RIP'LACE BATTERIES. _1

POwERPROGRAMIS LOB] DUETOOUTAGE OR DISPLAY _BATTER_FS ARE INCORRECTLY I1-" I ¢ i

INSTALL_ "-_-I1_ I REMOVE AND REPLACE P_R MARKINGS ON THERMOSTAT

GOESBLANK WHEN POWER S

AU TQMATIC THE RMOSTAT I _ REPLACE BATTERIES"

HE AT[NG OR COOLING _ i

TEMPERATURE CAN NOT BE

SET CLOSER THAN 3° F

Mt353

Adaptive Intelligent Recovery TM

Recovery automatically starts early enough so house is at

the comfort setting by the time chosen.

Comlort temperature

The temperature wanted in the morning and evening when

people are home.

Conventional Recovery

Recovery starts at the time programmed into the thermo-

stat; house reaches comfort temperature shortly thereaf-

ter.

Energy-saving temperature

The lower (heating) or higher (cooling) temperature that

allows savings on heating and cooling costs when asleep

or away. Also called the setback (heating) or setup (cool-

ing) temperature.

Period key

One of the four keys--WAKE, LEAVE, RETURN, or

SLEEP--to check or program the start time and tempera-

ture for a time period.

Preprogrammed schedule

This is the schedule programmed into your thermostat at

the factory. It sets a night program that provides energy

savings if homeowner doesn't set program, or if personal

program is lost for any reason. The program, which is the

same for all days of the week, is:

Start Temperature

Period Time Heating Cooling

WAKE 6:00 AM 70°F 78° F

LEAVE ...... No program ........

RETURN ...... No program ........

SLEEP 10:00 PM 60 ° F 780 F

Set point

The temperature set on the thermostat. The thermostat

turns the heating or cooling equipment on and off to

maintain this temperature at the thermostat location until

another temperature setting goes into effect.

Setup

Raising the temperature in the house for a set period every

day in summer for energy savings. The higher temperature

is the energy saving temperature.

Status lights---Lights on some models that show system

operating mode.

ENRG SAV light--This light glows during the LEAVE

and SLEEP periods.

SYSTEM light--This light glows whenever the thermo-

stat is calling for heating or air conditioning.

Sunday program schedule

The schedule of WAKE, LEAVE, RETURN and SLEEP

period start times and temperatures that homeowner pro-

grams to run on Sundays.

Time period

One of four program periods; WAKE, LEAVE, RETURN

and SLEEP available with the thermostat. One period

begins when the previous period ends.

WA KE_For conventional recovery, the time the recov-

ery to the comfortable temperature begins; for Adaptive

Intelligent Recovery TM, the time period when home-

owner wants the house at a comfortable temperature

while the family gets up and gets ready to leave for work

or school. This is the only period that must contain a

time and temperature.

Program

The times and temperatures set to define the comfort and

energy savings periods for each schedule (weekdays,

Saturday, Sunday).

Recovery

The time when the thermostat operates the heating or air

conditioning equipment to return the house from the on-

orgy savings to the comfort temperature. If thermostat is

set for Adaptive Intelligent Recovery TM, the thermostat

starts the recovery period early so the house will be at the

comfort setting by the time chosen.

Saturday program schedule

The schedule of WAKE, LEAVE, RETURN and SLEEP

period start times and temperatures that homeowner pro-

grams to run on Saturdays.

LEAVE--The time period when you can set back

(winter) or up (summer) the temperature for energy

savings because the family is usually away from home.

RETURN--For conventional recovery, the time the re-

covery to the comfortable temperature begins; for

Adaptive Intelligent Recovery TM, the time period when

homeowner wants the house at acomfortable tempera-

ture for family activities inthe evening before bedtime.

SLEEP--The time period when homeowner can set

back (winter) or up (summer) the temperature for en-

ergy savings because the family is sleeping. Set itto

start at your family's normal bedtime.

Often the SLEEP program is set only for the heating

season so family members can sleep cool in summer.

Setback

Reducing the temperature in the house for a set period

every day in winter lor energy savings. The lower tempera-

ture is the energy savings temperature.

Weekday program schedule

The schedule of WAKE, LEAVE, RETURN and SLEEP

period start times and temperatures that homeowner pro-

grams to run Monday through Friday.

33 68-0056--1

1. Why do some models of this thermostat have

lights?

Battery-operated thermostats do not have indicator

tights to conserve battery power, Others may have one

ortwo indicator lights, depending upon the exact model

and application.

2. The temperature displayed on the thermostat

doesn't always match the room temperature on an-

other thermostat located right next to it. Why?

The thermostat is avery accurate instrument designed

to sense both air temperature and wall temperature,

much as your body does. It gives an average reading

over a period of time.

3. Can Icontrol when the turnace comes on in the

morning?

When the thermostat is set for Adaptive Intelligent Re-

covery TM, it will turn on the furnace as early as neces-

sary to reach your desired comfort temperature at the

programmed time. The earliest it will be is 24 minutes

per degree setback ahead of your WAKE time, but it will

vary depending on your system, the weather and hew

much the temperature dropped in the house at night.

If you want to control the start time yourself, just switch

the thermostat to conventional recovery following the

directions on page 25. This way, the furnace won't

come on until your programmed WAKE time, but of

course it will take alittle while for your house to heat up

to the comfort temperature.

Remember, whichever way you set your thermostat, if

it is so cold outside that your house drops to your sfeep

temperature, the furnace will turn on and off at night to

control the temperature at that setting.

8°

rary setting will last until the next scheduled program

begins.

How can this thermostat save energy when it

comes on and off so many times early in the morn-

ing hours?

Two ways. First, it savesenergy (and money) by setting

back the temperature for blocks of time during the day

or night. Second, it conserves energy by recovering

gradually to the desired temperature. This prevents

overshooting your comfort set point (and wasting en-

ergy) or undershooting the comfort set point (and forc-

ing you to change the thermostat setting, also wasting

energy).

My thermostat has ENRG SAM and SYSTEM lights.

Why do they both go on at the same time? (For

example: during the sleep period.)

During Adaptive Intelligent Recovery TM, when you

recover graduallyto a next set point, you will stay in the

energy-saving mode until the next programmed time is

reached. But the system will operate intermittently to

gradually raise the temperature to your desired comfort

level before the time you've set as your WAKE time.

You will always be saving energy until the next period's

actual set point is reached.

Why don't all thermostat models have AUTO (auto-

matic) changeover from heating to cooling?

Most parts of the country don't have wide temperature

swings during a 24-hour period, so it is not necessary.

Desert climates, such as Phoenix, are the exception,

because of wide variations in temperature which may

require both the air conditioner and furnace to run

during different times within a given 24-hour period.

4. What does the HOLD key do?

It bypasses allprogram settings and holdsthe tempera-

ture at the present setting. To increase or decrease the

temperature while on HOLD, use the WARMER-

COOLER keys. Touching RUN PROGRAM will return

the device to programmed operations.

5. How long does the HOLD key hold?

Forever! The HOLD key will hold the temperature in-

definitely. The only way to release it is to push the RUN

PROGRAM key or change the system switch positions

if applicable. For a temporary temperature change,

simply press WARMER or COOLER key. This tempo-

Sometimes my Chronotherm III thermostat doesn't

allow the house temperature to drop to my SLEEP

setting before it starts bringing the furnace on.

Why?

When you start your SLEEP period, the thermostat will

turn off your furnace, and your house temperature will

start to fall. After that, the thermostat is out of the picture

until the house temperature falls all the way to your

SLEEP temperature setting or until recovery starts.

In mild weather or with good insulation, you r house tem-

perature may not fall all the way to your SLEEP tem-

perature setting and the thermostat won't turn on your

furnace until the time to recover back up to your comfort

setting.

page

SPECIFICATIONS ............................................................................................................................................................ 2

ORDERING INFORMATION ............................................................................................................................................ 2

INSTALLATION ................................................................................................................................................................4

Compatibility...............................................................................................................................................................4

Location.......................................................................................................................................................................4

Mounting Wallplate ....................................................................................................................................................4

Wiring ..........................................................................................................................................................................5

Cycle Rate AdJustment............................................................................................................................................20

Adaptive Intelligent RecoveryT_/ConventionalRecovery Conversion ................................................................20

Time/Temperature Conversion (Some Models) ..................................................................................................... 20

Fan Operation Switch...............................................................................................................................................20

Installing Batteries ...................................................................................................................................................21

Mounting the Thermostat ........................................................................................................................................ 21

Setting Day end Time ............................................................................................................................................... 21

CHECKOUT .................................................................................................................................................................... 22

Heating ...................................................................................................................................................................... 22

Cooling ...................................................................................................................................................................... 22

Fan ............................................................................................................................................................................. 23

Installer Self-Test (optional) .................................................................................................................................... 23

ABOUT ADAPTIVE INTELLIGENT RECOVERY TM ....................................................................................................... 24

RECOVERY SETTING PROCEDURE ............................................................................................................................ 24

PROGRAMMING THE THERMOSTAT .......................................................................................................................... 25

Set the Current Day and Time ................................................................................................................................. 25

Set the Program Schedule and Heating Temperatures ........................................................................................ 25

Set the Cooling Temperatures ................................................................................................................................ 27

Set the System and Fan Switches .......................................................................................................................... 29

OPERATING THE THERMOSTAT ................................................................................................................................. 30

Temporarily Changing the Program ....................................................................................................................... 30

Permanently Changing the Program ...................................................................................................................... 30

Operating the Thermostat Manually ....................................................................................................................... 30

Canceling Program Settings ................................................................................................................................... 31

Checking the Program Times and Temperatures ................................................................................................. 31

Checking the Current Temperature Setting ........................................................................................................... 31

TROUBLESHOOTING .................................................................................................................................................... 32

GLOSSARY .................................................................................................................................................................... 33

TYPICAL HOMEOWNER QUESTIONS ......................................................................................................................... 34

This equipment is a Class B digital apparatus which corn plies with Canadian Radio Interference Regulations, CRC c. 1374.

35 68-0056--1

Honeywell Inc.

1885 Douglas Drive N.

Golden Valley, MN 55422-4386

International Sales Offices in all principal cities of the world. Manufacturing in ]

Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, I

Spain, Taiwan, United Kingdom, U.S.A. PRINTED IN U.S.A, QUALITY IS KEY

HONEYWELL Controls And HVAC Accessories Manual L0712581

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