Honeywell Chronotherm Iii Manual



Honeywell Chronotherm Iii Wiring Diagram

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Honeywell Chronotherm Iii Wiring Diagram - honeywell chronotherm iii wiring diagram, Every electrical structure is made up of various different pieces. Each part should be placed and linked to different parts in specific way. If not, the arrangement won't function as it should be. To be able to make sure that the electric circuit is constructed correctly, Honeywell Chronotherm Iii Wiring Diagram is demanded. How does this diagram assist with circuit building?

Honeywell Chronotherm Iii Wiring Diagram | Wiring Diagram - Honeywell Chronotherm Iii Wiring Diagram

The diagram offers visual representation of an electric arrangement. However, the diagram is a simplified version of the arrangement. This makes the procedure for assembling circuit easier. This diagram gives information of circuit components in addition to their placements.

Components of Honeywell Chronotherm Iii Wiring Diagram and A Few Tips

There are just two things that will be present in almost any Honeywell Chronotherm Iii Wiring Diagram. The first component is symbol that indicate electric element in the circuit. A circuit is generally composed by various components. The other thing that you will come across a circuit diagram could be traces. Lines in the diagram show exactly how every component connects to one another.

The positions of circuit's parts are comparative, not accurate. The order is also not logical, unlike wiring schematics. Diagram only reveals where to place component in a place relative to other components within the circuit. Despite the fact that it's simplified, diagram is a fantastic foundation for everyone to build their own circuit.

One thing you have to learn before reading a circuit diagram is the symbols. Every symbol that is presented on the diagram reveals specific circuit element. The most common components are capacitor, resistorbattery. There are also other components like floor, switch, engine, and inductor. Everything rides on circuit that is being built.

According to earlier, the lines in a Honeywell Chronotherm Iii Wiring Diagram represents wires. Occasionally, the cables will cross. But, it doesn't mean link between the wires. Injunction of two wires is generally indicated by black dot at the junction of two lines. There'll be principal lines that are represented by L1, L2, L3, etc. Colors can also be utilized to differentiate cables.

Usually, there are two main types of circuit connections. The very first one is known as series link. It's the simpler type of link as circuit's components are placed within a specified line. Because of the electric current in each and every part is similar while voltage of this circuit is total of voltage in each component.

Honeywell Chronotherm Iii Wiring Diagram Video

Parallel connection is much more complicated than the show one. Unlike in string connection, the voltage of each component is similar. It's because the component is directly connected to electricity supply. This circuit consists of branches that are passed by different electric current amounts. The present joins together when the branches meet.

There are numerous items that an engineer needs to pay attention to if drawing wirings diagram. To start with, the symbols used in the diagram ought to be precise. It must represent the specific component necessary to build an intended circuit. When the symbol is incorrect or unclear, the circuit won't function since it is supposed to.

It's also highly suggested that engineer brings positive supply and negative supply symbols for clearer interpretation. Ordinarily positive supply emblem (+) is located above the line. Meanwhile the negative source emblem is set under it. The current flows from the left to right.

Along with this, diagram drawer is suggested to restrict the amount of line crossing. The line and part placement should be designed to lessen it. However, if it is unavoidable, use universal symbol to indicate if there is a intersection or if the lines aren't actually connected.

Because you can see drawing and interpreting Honeywell Chronotherm Iii Wiring Diagram may be complicated endeavor on itself. The information and suggestions that were elaborated above should be a great kick start, however. Honeywell Chronotherm Iii Wiring Diagram

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T8611G,R

Chronotherm III

Fuel SaverThermostats

Application

These thermostats provide energy saving control for a 24 Vac multistage heat pump heating/cooling system as indicated in Table 1 and are powered directly from the control transformer. All models have 5-1-1 programming.

As long as AC power is continuously available to transformer, the thermostat will be compatible with most control systems.

The T8611G,R models include SYSTEM and ENRG SAV LEDs near the top front of the thermostat. The SYSTEMLEDlightswhenthethermostatissignalingforheating or air conditioning. The ENGR SAV LED lights during the LEAVE and SLEEP periods.

Manual

TheAUX.HT.,EM.HT.,andCHECKLEDSarelocated nearthebottomcenterofthesubbase.SeeTable1.TheAUX. HT. LED lights whenever the thermostat is calling for operation of the backup or auxiliary heater. Backup (auxiliary)heatismoreexpensivetooperatethantheheatpumpand typicallyisusedonlywhentheheatpumpisunabletohandle the load. The EM. HT. LED lights whenever the thermostat system switch is in the EM. HT. position. The CHECK LED lights when something needs to be checked to maintain efficient operation of the system. Consult heat pump equipment literature to determine specific meaning of this LED.

Heat and cool anticipation is fixed in all models; no adjustment is necessary. Cycle rates are adjustable for auxiliary heating stage.

TABLE 1—Thermostat Models.

Thermostat

Stages

Switching

LEDs

Changeover

Terminals

Comments

See Fig.

Heat

Cool

System

Fan

T8611G

2

1

EM.HEAT-

ON-

EM.HT,

Auto

R, C/X, L,

4

HEAT-OFF-

AUTO

AUX.HT.

W2,E,G,O,

AUTO-COOL

B,Y,X2,X1

T8611R

2

1

EM.HEAT-

ON-

EM.HT.,

Manual

R,C/X,L,

5

HEAT-OFF-

AUTO

AUX.HT.

W2,E,W1,G,

COOL

O,B,Y,P

2

1

EM.HEAT-

ON-

EM.HT.

Manual

R,B,X,W2,

Exact

6

HEAT-OFF-

AUTO

E,W1,G,O,

replacement

COOL

H,Y1

for York

model no.

2ET11700224.

Installation

WHEN INSTALLING THIS PRODUCT...

1.Read these instructions carefully. Failure to allow them could damage the product or cause a hazardous condition.

2.Check the ratings on the product to make sure the product is suitable for your application.

3.Installermustbeatrained,experiencedservicetechni-

Honeywell Chronotherm Iii Manual

cian.

4.Allowthermostattowarmtoroomtemperaturebefore operating.

5.After installation is complete, check out product operation as provided in these instructions.

!CAUTION

1.Disconnect power supply to prevent electrical shock or equipment damage.

2.After wiring is complete, push excess wire back into the hole, and plug hole with nonhardening caulk, putty or insulation to prevent drafts from affecting thermostat operation.

LOCATION

Installthermostatandsubbaseabout5ft.[1.5m]abovethe floorinanareawithgoodaircirculationatroomtemperature.

Honeywell Chronotherm Iii Manual

Do not install the thermostat where it may be affected

J.H. • 3-92 • © Honeywell Inc. 1992 • Form Number 69-0348—1

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.

Manual

IF REPLACING AN EXISTING THERMOSTAT

Turn off power to thermostat at furnace or heat pump. A two-transformersystemmayrequireturningofftwoswitches or disconnects. Remove any existing wallplate or subbase from the wall. Label or write down each wire color with the letterornumberonthewiringterminalasthewireisremoved, to avoid miswiring later.

IF NEW INSTALLATION

Runacabletoaholeattheselectedwalllocation,andpull about 3 in. [76 mm] of wire through the opening. Color- coded,8-gaugethermostatcablewithoneconductorforeach wiring terminal is recommended. Good service practice recommends selecting cable with one or two more conductors than the immediate application requires.

MOUNTING SUBBASE

The subbase does not require leveling for proper operation, but for appearance only.

Remove thermostat from subbase, see Fig. 1.

Thesubbasemountsdirectlyontothewallwiththescrews included in the package. Use the subbase as a template, and with a pencil, mark the two mounting screw positions, see Fig. 2. Use 3/16 in. bit to drill holes for anchors. Gently tap anchors into holes until they are flush with the wall surface. Threadwiresthroughthecenteropeningofthesubbase.Then mountthesubbaseusingtwoscrewsprovided.Gentlytighten screws level top surface of subbase, then securely tighten screws.

Fig. 1—Removing thermostat from subbase.

SYSTEM

EM. HT. HEAT OFF

AUTO COOL

FAN

ON

AUTO

AUX. HEAT

CHECK

M5179A

Fig. 2—Mounting subbase on wall.

WALL

WIRES THROUGH

WALL

WALL OPENING

ANCHORS

(2)

MOUNTING

HOLES

MOUNTING

SCREWS (2)

SUBBASE

M5175

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.

Refer to Figs. 4-6 for typical hookups of subbase and thermostat.

NOTE: Keep all wiring restricted to ribbed area surrounding terminals to assure thermostat/subbase contact, see Fig. 3.

Fig. 3—Keep wiring restricted to ribbed area surrounding terminals.

Honeywell Chronotherm Iii Problem

FOR STRAIGHT INSERTION –

STRIP 5/16 in. [8 mm]

RESTRICT

WIRING TO

FOR WRAPAROUND –

THIS AREA

STRIP 7/16 in. [11 mm]

FRONT VIEW OF

TERMINAL AREA

WIRING TO BE BELOW

TOP SURFACE

THIS SURFACE

OF SUBBASE

CROSS-SECTIONAL VIEW OF

TERMINAL AREA

M3062

Fig. 4—T8611G 2-stage heat/1-stage cool thermostat.

1

L1 L2 (HOT)

R

HIGH

LIMIT

C/X

EM. HEAT

AUX. HEAT

LED (RED)

LED (GRN)

FAN

L

SWITCH

MONITOR

ON

W2

SUBBASE

THERMOSTAT

AUTO

HEAT 2

AUXILIARY

LOGIC/

LOGIC

CONTROL

HEAT RELAY

CIRCUIT

CIRCUIT

E

EMERGENCY

HEAT RELAY

SYSTEM

SWITCH

EM. HT.

HEAT

G

FAN RELAY

OFF

C.O.

AUTO

O

COOL

CHANGEOVER

C.O.

RELAY (COOL)

HIGH

B

LIMIT

HEAT 1

COOL

CHANGEOVER

RELAY (HEAT)

Y

1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

X1

2

DENOTES THERMOSTAT TO SUBBASE INTERCONNECT.

CHECK LED

3

(YELLOW)

3 POSSIBLE CHECK LED CIRCUITS:

X2

X1

TO R

X1

TO R

X1

L1

CHECK

FAULT DETECTION

CHECK

FAULT DETECTION

CHECK

SWITCHING

(HOT)

LED

LED

LED

SWITCH

DEVICE

1

(YELLOW)

(YELLOW)

SWITCH

(YELLOW)

X2

24 Vac

TO C/X

X2

TO C/X

X2

L2

SWITCH TO R (POWER) SIDE OF

SWITCH TO C (COMMON) SIDE

SWITCH IN SECONDARY OF

SYSTEM TRANSFORMER

SEPARATE TRANSFORMER

OF SYSTEM TRANSFORMER

Honeywell Chronotherm Iii Manual Or Instructions

3

69-0348—1