Emerson WHITE-RODGERS 1E78 Manual de usuario

CONTENTS

Installation

Instructions

for

Heating

Air

Conditioning

1E78

Non-Programmable

Heat

Only

Thermostat

Preparations...

Thermostat

Details.

Removing

Old

Thermostat

Mounting

and

Wiring..

Check

Thermostat

Operation

..3

Specifications.4

Troubleshooting.4

YOUR

THERMOSTAT

REPLACES

Typical

System

Compatibility

Chart

___

Standard

Heat

Oniy

Two

Wire

Gas

Oil

Fired

Systems

(24

volt)

Electronic

Ignition

Heat

Only

Two

Wire

Systems

(24

voit)

Electronic

Ignition

Heat

Only

Gas

Oil

Fired

Systems

(24

volt)

Standard

Heat/Cooi

Systems

(24

volt)

~Heat/Cool

Systems

Electric

Heat

(24

voit)

Heat

Only

Electric

Heat

Systems

(24

volt)

Cool

Only

Systems

Heat

Pump

Systems

(No

Aux.

Emergency

Heat)

Hot

Water

Zone

Heat

Only

(Two

Wire)

Systems

Hot

Water

Zone

Heat

Only

(Three

Wire)

Systems

Line

Voltage

Heating

Baseboard

110/240

Volt

Systems

Millivolt

Systems

Floor

Wai!

Furnaces

VDC

Mobile

Home

Application

Multistage

Systems

Exceeding

30VAC,

1.5.

PREPARATIONS

Assemble

tools

required

shown

below.

HAND

POWER

DRILL

WITH

3/16

INCH

CHILL

SIT.

NEEDED

FLAT

BLADE

SCREWDRIVER

•

WIRE

CUTTER/STR1PPEH

Failure

and

read

all

instructions

carefully

before

installing

operating

this

control

could

cause

personal

injury

and/or

property

damage.

THERMOSTAT

DETAILS

Mounting

Hole

Base

Mounting

Back

Hole

Thermostat

Body

W904

clip

for

Celcius

display

W905

clip

for

hydronic

system

Figure

Thermostat

REMOVING

OLD

THERMOSTAT

CAUTION

prevent

electrical

shock

and/or

equipment

dam¬

age,

disconnect

electric

power

system

main

fuse

circuit

breaker

box

until

installation

complete.

Before

removing

wires

from

old

thermostaf

switching

subbase,

label

each

wire

with

the

terminal

designation

was

removed

from.

Remove

Old

Thermostat:

standard

heat/cool

thermostat

consists

three

basic

parts:

The

cover,

which

may

either

snap-on

hinge

type.

The

base,

which

removed

loosening

all

captive

screws.

The

switching

subbase,

which

removed

unscrewing

the

mounting

screws

that

hold

the

wall

adaptor

plate.

Shut

off

electricity

the

main

fuse

box

until

installation

complete.

Ensure

that

electrical

power

disconnected.

Remove

the

front

cover

the

old

thermostat.

With

wires

still

attached,

remove

wall

plate

from

the

wall.

the

old

thermostat

has

wall

mounting

plate,

remove

the

thermostat

and

the

wall

mounting

plate

assembly.

Identify

each

wire

attached

the

old

thermostat

using

the

labels

enclosed

with

the

new

thermostat.

Disconnecfthe

wires

from

the

old

thermostat

one

time.

NOT

LET

WIRES

FALL

BACK

INTO

THE

WALL.

Install

new

thermostat

using

the

following

procedures.

EMERSON.

White-Rodgers

division

Emerson

Electric

Co.

www.white-rodgers.com

PART

NO.

37-6620A

REMOVING

OLD

THERMOSTAT

continued

from

first

page

ATTENTION!

This

product

does

not

contain

mercury.

However,

this

product

may

replace

unit

which

contains

mercury.

not

open

mercury

cells.

cell

becomes

damaged,

not

touch

any

spilled

mercury.

Wearing,

non-absorbent

gloves,

take

the

spilled

mercury

and

place

into

container

which

can

sealed.

cell

becomes

damaged,

the

unit

should

discarded.

Mercury

must

not

discarded

household

trash.

When

the

unit

this

product

replacing

discarded,

place

suitable

container

and

return

White-Rodgers

2895

Harrison

Street,

Batesville,

72501-2117

for

proper

disposal.

MOUNTINGANDWIRING

WARNING

not

use

circuits

exceeding

specified

voltage.

Higher

voltage

will

damage

control

and

could

cause

shock

fire

hazard.

not

short

out

terminals

gas

valve

primary

control

test.

Short

incorrect

wiring

will

dam¬

age

thermostat

and

could

cause

personal

injury

and/or

property

damage.

Thermostat

installation

and

all

components

the

system

shall

conform

Class

circuits

per

the

NEC

code.

Hydronic

(Hot

Water

Steam)

Heating

Systems

This

thermostat

set

operate

properly

with

forced-air

heating

system.

you

have

hydronic

heating

system

that

heats

with

hot

water

steam),

you

must

set

the

thermostat

operate

properly

with

your

system.

The

factory

default

setting

forced

air

heat.

Clipping

jumper

W905

the

circuit

board

will

produce

longer

heating

cycle

which

normally

for

hot

water

steam

(hydronic)

systems.

Both

settings

produce

very

accurate

temperature

control

and

can

set

your

personal

preference.

received,

the

thermostat

cycles

the

system

just

under

1°F.

With

W905

clipped,

the

system

cycles

approximately

1.5°F.

CAUTION

Take

care

when

securing

and

routing

wires

they

not

short

adjacent

terminals

rear

thermostat.

Persona!

injury

and/or

property

damage

may

occur.

TERMINAL

CROSS

REFERENCE

CHART

New

Thermostat

Other

Manufacturers’

Terminal

Designation

Terminal

Designation

Attach

Thermostat

Base

Wall

Remove

the

packing

material

from

the

thermostat.

Gently

pull

the

body

straight

off

the

base.

Forcing

prying

the

thermostat

will

cause

damage

the

unit.

Connect

wires

beneath

terminal

screws

on.

base

using

appropriate

wiring

schematic

(see

fig.

Place

base

over

hole

wall

and

mark

mounting

hole

locations

wall

using

base

template.

Move

base

out

the

way.

Drill

mounting

holes.

Fasten

base

loosely

wall,

shown

fig.

using

two

mounting

screws.

Adjust

until

level,

and

then

tighten

screws.

(Leveling

for

appearance

only

and

will

not

affect

thermostat

operation.)

you

are

using

existing

mounting

holes,

holes

drilled

are

too

large

and

not

allow

you

tighten

base

snugly,

use

plastic

screw

anchors

secure

t,base.

;

Push

excess

wire

into

wall

and

plug

hole

with,

fire-

resistant

material

(such

fiberglass

insulation)

prevent

drafts

from

affecting

thermostat

operation.

Battery

Location

This

thermostat

requires

“AAA”

alkaline

batteries

operate.

“LO

BATTERY”

appears

the

display,

the

batteries

are

low

and

should

replaced

with

fresh

“AAA”

Energizer®

alkaline

batteries.

The

batteries

are

located

the

back

the

thermo¬

stat

body

(see

fig.

Figure

Typical

wiring

diagram

for

heat

only,

2-wire,

single

transformer

systems

CHECKTHERMOSTATOPERATiON

NOTE

prevent

static

discharge

problems,

touch

side

thermostat

release

static

build-up

before

touching

any

keys,

any

drne

during

testing

your

system

does

not

operate

properly,

contact

qualified

serviceperson.

Heating

System

Move

SYSTEM

switch

HEAT

position.

the

heating

system

has

standing

pilot,

sure

light

it.

press

adjust

thermostat

setting

above

room

tem¬

perature.

The

heating

system

should

begin

operate.

press

<37

adjust

temperature

setting

below

room

temperature.

The

heating

system

should

stop

operating.

Before

you

begin

using

your

thermostat,

you

should

familiar

with

atures

and

the

display

and

the

location

and

operation

the

thermostat

buttons.

Your

thermostat

consists

two

parts:

the

thermostat

body

and

the

base.

remove

the

body,

gently

puli

straight

out

from

the

base.

replace

the

Body!

ine

body

witb

the

base

antJ

press

gently

until

the

|bdy

snaps

onto

the

base.

WHITE-RO

BEtS

(T)

(Up

arrow)

Raises

temperature

setting.

(Down

arrow)

Lowers

temperature

setting.

SYSTEM

switch

(OFF,

HEAT).

The

Display

displayed

when

the

SYSTEM

switch

the

HEAT

jsition.

Displays

current

temperature.

BATTERY"

displayed

when

the

“AAA”

batteries

arc

low

and

should

replaced.

Nothing

else

will

displayed.

Displays

currently

set

temperature

(this

blank

when

SYSTEM

switch

the

OFF

position).

Operating

Features

mat

you

arc

familiar

with

the

thermostat

buttons

and

lay,

read

the

following

information

learn

about

the

many

ures

the

thermostat.

TEMPERATURE

SETTING

—

Press

^37

until

the

^ows

the

temperature

you

want.

The

thermostat

d'o

oom

temperature

the

selected

ternpera-

CONVERTIBILITY

—

The

factory

default

setting

.®

nieit

Clipping

W904

jumper

the

circuit

board

Wil!

alfer

feature

Celsius

temperature

Figure

Thermostat

display

buttons

and

switches

•

LOW

BATTERY

INDICATOR

—

the

“AAA”

alkaline

batteries

are

low

and

should

replaced,

the

display

will

blank

except

for

“LO

BATTERY”.

When

the

batteries

are

low,

pressing

any

button

will

cause

the

display

operate

for

ten

seconds.

After

ten

seconds,

the

display

will

blank-

except

for

“LO

BATTERY".

After

“LO

BATTERY”

has

been

displayed

for

weeks,

thenthermostat

will

drop

the

tempera¬

ture

10°

below

your

setpoint

HEAT

mode.

You

cannot

program

with

low

batteries,

but

you

can

override

setpoint

temperature.

TEMPERATURE

DISPLAY

ADJUSTMENT—

Your

new

thermostat

has

been

accurately

set

our

factory.

How¬

ever,

you

wish,

you

may

adjust

your

new

thermostat

temperature

display

match

your

old

thermostat.

This

can

accomplished

(within

±3°

range)

follows:

Press

and

<377

the

same

time

for

two

seconds

with

the

SYSTEM

switch

OFF

position.

Press

adjust

the

displayed

temperature

your

desired

setting.

Move

SYSTEM

switch

from

OFF

exit

the

feature.

DISPLAY

BACKLIGHT—The

display

backlight

improves

display

contrast

low

lighting

conditions.

Selecting

back¬

light

will

turn

the

light

ori

fora

short

period

time

after

any

button

pressed.

Selecting

backlight

OFF

(default)

will

keep

the

light

off.

Turn

the

display

backlight

feature

follows:

Press

/-rr->,

and

377

the

same

time

for

two

seconds

with

the

SYSTEM

switch

HEAT

position.

The

display

will

alternately

show

“-L”

AND

“FF”

(off).

Press

/-r-s

change

“FF”

“ON”.

Move

SYSTEM

switch

OFF

exit

the

feature.

SPECIFICATIONS

ELECTRICAL

DATA

Electrical

Rating:

VAC

50/60

Hz.

D.C.

0.05

1.0

Amps

(Load

per

terminal)

1.5

Amps

Maximum

Total

Load

(All

terminals

combined)

THERMAL

DATA

Setpoint

Temperature

Range:

45°F

90°F

(7°C

32°C)

Operating

Ambient

Temperature

Range:

32°F

105°F

Operating

Humidity

Range:

90%

(non-condensirtg)

Shipping

Temperature

Range:

-40°F

150°F

TROUBLESHOOTING

Reset

Operation

voltage

spike

static

discharge

blanks

out

the

display

causes

erratic

thermostat

operation

you

can

reset

the

thermo¬

stat

pressing

and

'ZE?

the

same

time

while

moving

the

SYSTEM

switch

from

OFF

HEAT.

This

also

resets

the

factory

defaults.

the

thermostat

has

power,

has

been

reset

and

still

does

not

function

correctly

contact

your

heating/cooling

service

person

place

purchase.

Batteries

For

optimum

performance,

recommend.replacing

batteries

once

year

with

fresh

“AAA”

Energizer

alkaline

batteries.

Symptom

Possible

Cause

Corrective

Action

Heat

(common

problems)

Blown

fuse

tripped

circuit

breaker.

Furnace

power

switch

OFF.

Furnace

blower

compartment

door

panel

loose

not

properly

installed.

Replace

Lise

reset

breaker.

Turn

switch

ON.

Replace

door

panel

proper

position

engage

safety

interlock

door

switch.

Heat

Pilot

light

not

lit.

Re-light

pilot.

Loose

connection

thermosiat

system.

Furnace

Lock-Out

Condition.

Heat

may

also

intermittent.

Heating

system

requires

service

thermostat

requires

replacement.

Verify

thermostat

and

system

wires

are

securely

attached.

Many

furnaces

have

safety

devices

that

shut

down

when

lock-out

condition

occurs.

the

heat

works

intermittently

contact

the

furnace

manufacturer

local

service

person

for

assistance.

Diagonisiic:

Set

SYSTEM

Switch

HEAT

and

raise

the

setpoint

above

room

temperature.

Within

few

seconds

the

thermostat

should

make

soft

did

sound.

This

sound

usually

indicates

the

thermostat

operating

property,

the

thermostat

does

not

ciick,

try

the

reset

operation

listed

above.

the

thermostat

does

not

dick

after

being

reset

contact

your

heating

and

cooling

service

person

place

purchase

for

replacement.

the

thermostat

clicks,

contact

the

furnace

manufacturer

service

person

verify

the

heating

operating

correctly.

Heat,

Runs

Constantly

Possible

short

wiring.

Possible

short

thermostat

Possible

short

heat

system.

Check

each

wire

connection

verify

they

are

not

shorted

touching

together.

bare

wire

should

stick

out

from

under

terminal

screws.

Try

resetting

the

thermostat

described

above,

the

condition

persists

the

manufacturer

your

system

service

person

can

instruct

you

how

test

the

Heat

system

for

correct

operation.

the

system

operates

correctly,

replace

the

thermostat

Furnace

Cycles

Too

Fast

Too

Slow

(narrow

wide

temperature

swing)

The

location

the

thermostat

and/or

the

size

the

Heating

System

may

influencing

the

cycle

rate.

Digital

thermostats

normally

provide

precise

temperature

control

and

may

cycle

faster

than

some

older

mechanical

models.

fester

cycle

rate

means

the

unit

turns

and

off

frequently

but

runs

for

shorter

time

there

increase

energy

use.

you

would

increase

the

cycle

time,

dip

jumper

W-905

mentioned

the

instructions

for

Hydronic

Heating

Systems.

not

possible

shorten

the

cycle

time.

acceptable

cycle

rate

not.

achieved

received

clipping

W-905

contact

local

service

person

for

additional

suggestions.

Thermostat

Setting

and

Thermostat

Thermometer

Disagree

Thermostat

thermometer

setting

requires

adjustment.

The

thermometer

can

adjusted

+/-

degrees.

See

Temperature

Display

Adjustment

the

Operation

section.

Blank

Display

and/or

Keypad

Not

Responding

Voltage

spike

static

discharge.

Battery

change

required.

Replace

batteries

and

check

heat/cool

system

for

proper

operation.

voltage

spike

occurs

use

the

Reset

Operation

listed

above.

The

Emerson

logo

trademark

and

service

mark

Emerson

Electric

Co.

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