White Rodgers 1F85-277 User Manual

1F85-2771F85-277

1F85-277

1F85-2771F85-277

Heating & Air Conditioning

7 Day/5-1-1 Programmable/Non-programmable, Auto

Changeover, Multi-Stage/Heat Pump Thermostat

INSTALLATION INSTRUCTIONSINSTALLATION INSTRUCTIONS

INSTALLATION INSTRUCTIONS

INSTALLATION INSTRUCTIONSINSTALLATION INSTRUCTIONS

Operator: Save these instructions for future use!Operator: Save these instructions for future use!

Operator: Save these instructions for future use!

Operator: Save these instructions for future use!Operator: Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFOREFAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFOREFAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONALINSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL

INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL

INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONALINSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.INJURY AND/OR PROPERTY DAMAGE.

INJURY AND/OR PROPERTY DAMAGE.

INJURY AND/OR PROPERTY DAMAGE.INJURY AND/OR PROPERTY DAMAGE.

PREPARATIONSPREPARATIONS

PREPARATIONS

PREPARATIONSPREPARATIONS

YOUR THERMOSTAT REPLACESYOUR THERMOSTAT REPLACES

YOUR THERMOSTAT REPLACES

YOUR THERMOSTAT REPLACESYOUR THERMOSTAT REPLACES

DescriptionDescription

Description

DescriptionDescription
Heat Pump (No Aux. or Emergency Heat) Yes
Heat Pump (with Aux. or Emergency Heat) Yes
Standard Heat & Cooling Systems Yes
Two Stage Heat & Two Stage Cool Yes
Standard Heat Only Systems Yes
Millivolt Heat Only Systems – Floor or Wall Furnaces Yes
Standard Central Air Conditioning Yes
Gas or Oil Heat Yes
Electric Furnace Yes
Hydronic (Hot Water) Zone Heat – 2 Wires Yes
Hydronic (Hot Water) Zone Heat – 3 Wires No

1F85-2771F85-277

1F85-277

1F85-2771F85-277

Assemble tools required as shown below.

HAND OR POWER
DRILL WITH 3/16 INCH
DRILL BIT, IF NEEDED

REMOVING OLD THERMOSTATREMOVING OLD THERMOSTAT

REMOVING OLD THERMOSTAT

REMOVING OLD THERMOSTATREMOVING OLD THERMOSTAT

FLAT BLADE SCREWDRIVER

WIRE CUTTER/STRIPPER

CAUTION

!

To prevent electrical shock and/or equipment dam-To prevent electrical shock and/or equipment dam-

To prevent electrical shock and/or equipment dam-

To prevent electrical shock and/or equipment dam-To prevent electrical shock and/or equipment dam­age, disconnect electric power to system at main fuseage, disconnect electric power to system at main fuse

age, disconnect electric power to system at main fuse

age, disconnect electric power to system at main fuseage, disconnect electric power to system at main fuse
or circuit breaker box until installation is complete.or circuit breaker box until installation is complete.

or circuit breaker box until installation is complete.

or circuit breaker box until installation is complete.or circuit breaker box until installation is complete.

Before removing wires from old thermostat's switching sub-

label each wirelabel each wire

base,

label each wire with the terminal designation it was

label each wirelabel each wire

removed from.

1. Shut off electricity at the main fuse box until installation is
complete. Ensure that electrical power is disconnected.

Remove Old ThermostatRemove Old Thermostat

2.

Remove Old Thermostat: A standard heat/cool

Remove Old ThermostatRemove Old Thermostat
thermostat consists of three basic parts:
a. The cover, which may be either a snap-on or

hinge type.

b. The base, which is removed by loosening all

captive screws.

c. The switching subbase, which is removed by

unscrewing the mounting screws that hold it on
the wall or adaptor plate.

3. Remove the front cover of the old thermostat.
wireswires

still attachedstill attached

wires

still attached, remove wall plate from the wall. If

wireswires

still attachedstill attached
the old thermostat has a wall mounting plate, remove the
thermostat and the wall mounting plate as an assembly.

4. Identify each wire attached to the old thermostat.

5. Disconnect the wires from the old thermostat one at a
DO NOT LET WIRES FALL BACK INTO THEDO NOT LET WIRES FALL BACK INTO THE

time.

DO NOT LET WIRES FALL BACK INTO THE

DO NOT LET WIRES FALL BACK INTO THEDO NOT LET WIRES FALL BACK INTO THE

WALLWALL

WALL.

WALLWALL

6. Install new thermostat using the following procedures.

WithWith

With

WithWith

Y2

C
R

E/W1

Y1

Mounting
Hole

Figure 1 – Thermostat baseFigure 1 – Thermostat base

Figure 1 – Thermostat base

Figure 1 – Thermostat baseFigure 1 – Thermostat base

ATTENTION!ATTENTION!

ATTENTION! This product does not contain mercury. How-

ATTENTION!ATTENTION!
ever, this product may replace a unit which contains mercury.

Do not open mercury cells. If a cell becomes damaged, do
touch any spilled mercury. Wearing non-absorbent gloves,
clean up the spilled mercury and place into a container which
can be sealed. If a cell becomes damaged, the unit should be
discarded.

Mercury must not be discarded in household trash. When the
unit this product is replacing is to be discarded, place in a
suitable container and return to White-Rodgers at 2895 Harrison
Street, Batesville, AR 72501 for proper disposal.

OBLW2G

ELEC. GAS

AUTOON

Mounting
Hole

Elec-Gas
Switch

notnot

not

notnot

White-Rodgers is a division

of Emerson Electric Co.

www.white-rodgers.com

PART NO. 37-6560APART NO. 37-6560A

PART NO. 37-6560A

PART NO. 37-6560APART NO. 37-6560A

0430

MOUNTING AND WIRINGMOUNTING AND WIRING

MOUNTING AND WIRING

MOUNTING AND WIRINGMOUNTING AND WIRING

CAUTION

WARNING

!

Do not use on circuits exceeding specified voltage.Do not use on circuits exceeding specified voltage.

Do not use on circuits exceeding specified voltage.

Do not use on circuits exceeding specified voltage.Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could causeHigher voltage will damage control and could cause

Higher voltage will damage control and could cause

Higher voltage will damage control and could causeHigher voltage will damage control and could cause
shock or fire hazard.shock or fire hazard.

shock or fire hazard.

shock or fire hazard.shock or fire hazard.

Do not short out terminals on gas valve or primaryDo not short out terminals on gas valve or primary

Do not short out terminals on gas valve or primary

Do not short out terminals on gas valve or primaryDo not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damagecontrol to test. Short or incorrect wiring will damage

control to test. Short or incorrect wiring will damage

control to test. Short or incorrect wiring will damagecontrol to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/orthermostat and could cause personal injury and/or

thermostat and could cause personal injury and/or

thermostat and could cause personal injury and/orthermostat and could cause personal injury and/or
property damage.property damage.

property damage.

property damage.property damage.

Thermostat installation and all components of the
system shall conform to Class II circuits per the NEC
code.

Electric/Gas Switch (Fan Option)Electric/Gas Switch (Fan Option)

Electric/Gas Switch (Fan Option)

Electric/Gas Switch (Fan Option)Electric/Gas Switch (Fan Option)

This thermostat is configured from the factory to operate a heat/
cool, fossil fuel (gas, oil, etc.), forced air system. It is configured
correctly for any system that DOES NOT require the thermostat
to energize the fan on a call for heat. If you system is an electric
heat or heat-pump system that REQUIRES the thermostat to
turn on the fan on a call for heat, locate the ELEC/GAS switch
on the back of the thermostat (see fig. 1) and switch it to the
ELEC position. This will allow the thermostat to energize the fan
immediately on a call for heat. If you are unsure if the heating/
cooling system requires the thermostat to control the fan,
contact a qualified heating and air conditioning service person.

When the thermostat is configured for Heat Pump, the thermo­stat will always power the circulator fan on a call for heat in the
HEAT mode. The ELEC/GAS switch must be set to match the
type of Auxiliary heat your system uses for proper operation in
the EMERgency mode.

Take care when securing and routing wires so they doTake care when securing and routing wires so they do

Take care when securing and routing wires so they do

Take care when securing and routing wires so they doTake care when securing and routing wires so they do
not short to adjacent terminals or rear of thermostat.not short to adjacent terminals or rear of thermostat.

not short to adjacent terminals or rear of thermostat.

not short to adjacent terminals or rear of thermostat.not short to adjacent terminals or rear of thermostat.
Personal injury and/or property damage may occur.Personal injury and/or property damage may occur.

Personal injury and/or property damage may occur.

Personal injury and/or property damage may occur.Personal injury and/or property damage may occur.

Attach Thermostat Base to WallAttach Thermostat Base to Wall

Attach Thermostat Base to Wall

Attach Thermostat Base to WallAttach Thermostat Base to Wall

1. Remove the packing material from the thermostat. Gently
pull the cover straight off the base. Forcing or prying on
the thermostat will cause damage to the unit.

2. Connect wires beneath terminal screws on base using
appropriate wiring schematic (see figs. 2 through 4).

3. Place base over hole in wall and mark mounting hole
locations on wall using base as a template.

4. Move base out of the way. Drill mounting holes.

5. Fasten base loosely to wall, as shown in fig. 1, using two
mounting screws. Place a level against bottom of base,
adjust until level, and then tighten screws. (Leveling is for
appearance only and will not affect thermostat operation.)
If you are using existing mounting holes, or if holes drilled
are too large and do not allow you to tighten base snugly,
use plastic screw anchors to secure subbase.

6. Push excess wire into wall and plug hole with a fire­resistant material (such as fiberglass insulation) to
prevent drafts from affecting thermostat operation.

2 “AA” alkaline batteries are included in the thermostat at the
factory with a battery tag to prevent power drainage. You
must remove the battery tag to engage the batteries.

“BATT”“BATT”

If

“BATT” is displayed, the batteries are low and should be

“BATT”“BATT”

!

Battery LocationBattery Location

Battery Location

Battery LocationBattery Location

replaced with fresh “AA” Energizer® alkaline batteries. To

All wiring diagrams are for typical systems only. Refer to
equipment manufacturers’ instructions for specific system wir­ing information.

O

Reversing Valve

Energized in Cool

Mode

B

Reversing Valve

Energized in Heat,

Off, Emergency

Mode

Y2

2nd Stage

Compressor

Compressor

Contactor

replace batteries, press system button to
batteries along the top of the base (see Fig. 1). The batteries
must be installed with the positive (+) end to the left.

G W2

Fan

Relay

Aux

Heat

Relay

E/W1

Emergency

Heat

Relay

CY1

*

MONITOR

Figure 2. Typical wiring diagram for single transformer heat pump systems

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” Energizer® alkaline batteries.

If safety circuits are in only one of the systems, remove
the transformer of the system with NO safety circuits.

NOTE

OFFOFF

OFF, install the

OFFOFF

L

SYSTEM
SWITCH

24 VAC

TRANSFORMER

(Class II Current Limited)

THERMOSTAT

R

SYSTEM

Hot

120 VAC

Neutral

TAPE OFF!

HOT

120 VAC

NEUTRAL

CUT AND

24 VAC

O

Reversing

Valve

Energized in

Cool Mode

B

Reversing

Valve

Energized in

Heat, Off,

Emergency

Mode

Y2

2nd Stage

Compressor

Compressor

Contactor

G W2

Fan

Relay

E/W1

Emergency

Aux

Heat

Relay

Heat

Relay

TWO COMMONS MUST
BE JUMPERED TOGETHER!

CY1

*

SYSTEM

MONITOR

SWITCH

L

THERMOSTAT

R

SYSTEM

Limit or

Safety

Switches

24 VAC

TRANSFORMER

(Class II Current Limited)

Hot

120 VAC

Neutral

Figure 3. Typical wiring diagram for two transformer heat pump systems with NO safety circuits

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” Energizer® alkaline batteries.

2

WIRING DIAGRAMSWIRING DIAGRAMS

WIRING DIAGRAMS

WIRING DIAGRAMSWIRING DIAGRAMS

O

Reversing

Valve

Energized in

Cool Mode

B

Reversing

Valve

Energized in

Heat, Off,

Emergency

Mode

Y2

2nd Stage

Compressor

Compressor

Contactor

G W2

Fan

Relay

Polarity must be observed. If the HOT side of the second transformer
is jumpered to the COMMON side of the first transformer a short will
be made. Damage to equipment will occur when power is restored.

E/W1

Emergency

Heat

Relay

Aux
Heat

Relay

TWO COMMONS MUST
BE JUMPERED TOGETHER!

CY1

*

SYSTEM

MONITOR

SWITCH

NOTE

L

COMMON

R

Limit or

Switches

Limit or

Safety

Switches

THERMOSTAT

Safety

24 VAC

24 VAC

ACCESSORY

RELAY N.O.

CONTACT

Current Limited)

COMMON

24 VAC 120 VAC

Heat Pump Transformer

(Class II Current Limited)

SYSTEM

Auxiliary

Heating

Transformer

(Class II

Limit or

Safety

HOT

Switches

120 VAC

The accessory relay scheme
is required when safety
circuits exist in both systems.

Limit or

Safety

Switches

NEUTRAL

NOTE

HOT

NEUTRAL

Figure 4. Typical wiring diagram for two transformer heat pump systems with safety circuits in BOTH systems

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” Energizer® alkaline batteries.

Heat Pump Terminal OutputsHeat Pump Terminal Outputs

Heat Pump Terminal Outputs

Heat Pump Terminal OutputsHeat Pump Terminal Outputs

Refer to equipment manufacturers' instructions for specific
system wiring information.

You can configure the thermostat for use with the following
heat pump system types:
HEAT PUMP TYPE 1HEAT PUMP TYPE 1

HEAT PUMP TYPE 1. Single stage compressor system; gas

HEAT PUMP TYPE 1HEAT PUMP TYPE 1
or electric backup.

This thermostat is designed to operate a single-transformer
system. If you have a two-transformer system, cut and tape off

one transformer. If transformer safety circuits are in only one of
the systems, remove the transformer of the system with NO
safety circuits. If required, replace remaining transformer with
a 75VA Class II transformer. After disconnecting one trans­former, the two commons must be jumpered together.

Use the terminal output information below to help you wire the
thermostat properly for your heat pump system. After wiring, see
CONFIGURATION CONFIGURATION

CONFIGURATION section for proper thermostat configuration.

CONFIGURATION CONFIGURATION

THERMOSTAT TERMINALS (HEAT PUMP)THERMOSTAT TERMINALS (HEAT PUMP)

THERMOSTAT TERMINALS (HEAT PUMP)

THERMOSTAT TERMINALS (HEAT PUMP)THERMOSTAT TERMINALS (HEAT PUMP)

SYSTEMSYSTEM

SYSTEM

SYSTEMSYSTEM

LL

L

LL

C*C*

C*

C*C*

RR

R

RR

W2W2

W2

W2W2

E/W1E/W1

E/W1

E/W1E/W1

Y2Y2

Y2

Y2Y2

Y1Y1

Y1

Y1Y1

GG

G

GG

OO

O

OO

BB

B

BB

Heat Malfunction 24 Volt 24 Volt HP 1 and Emergency No Heat and Blower/Fan Energized Energized Energized
Pump 1 Light (Common) (Hot) Emergency Mode Output Cool mode on call for Heat in Cool in Heat

2nd stage 1st stage 1st stage and Cool Mode OFF

Heat HP 2 2nd (compressor) Set GAS/ELEC switch Emergency
Pump 2 3rd stage stage for Emergency mode mode

compressor

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” Energizer® alkaline batteries.

O

Reversing

Valve

Energized in

Cool Mode

B

Reversing

Valve

Energized in

Heat Mode

Off Emergency

Y1

Compressor

Contactor

Stage 1

Y2

Compressor

Contactor

Stage 2

G

Fan

Relay

E/W1

Heat

Relay

Stage 1

W2

Heat

Relay

Stage 2

*

C R

THERMOSTAT

SYSTEM

Hot

24 VAC 120 VAC

Neutral

TRANSFORMER

(Class II, Current Limited)

Figure 5. Typical wiring diagram for single transformer multi-stage systems

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” Energizer® alkaline batteries.

3

Multi-Stage Terminal OutputsMulti-Stage Terminal Outputs

Multi-Stage Terminal Outputs

Multi-Stage Terminal OutputsMulti-Stage Terminal Outputs

Refer to equipment manufacturers' instructions for specific
system wiring information.

You can configure the thermostat for use with either multi-stage
electric heat systems or multi-stage gas systems. When con­figured for
energized on a call for heat.

This thermostat is designed to operate a single-transformer
system. If you have a two-transformer system, cut and tape off

SYSTEMSYSTEM

SYSTEM

SYSTEMSYSTEM

Multi-stage Malfunction 24 Volt 24 Volt Heat Mode Heat mode Cool Mode Cool Mode Blower/Fan Energized Energized Energized

*The 24 volt neutral connection to terminal C on the thermostat is not required if you replace the batteries once a year with fresh “AA” Energizer® alkaline batteries.

CHECK THERMOSTAT OPERATIONCHECK THERMOSTAT OPERATION

CHECK THERMOSTAT OPERATION

CHECK THERMOSTAT OPERATIONCHECK THERMOSTAT OPERATION

electric electric

electric heat, the

electric electric

LL

L

LL

Light (Common) (Hot) 2nd stage 1st stage 2nd stage 1st stage on call for Cool (and in Cool in Heat, Off,

GG

G terminal (blower/fan) will be

GG

THERMOSTAT TERMINALS (MULTI-STAGE)THERMOSTAT TERMINALS (MULTI-STAGE)

THERMOSTAT TERMINALS (MULTI-STAGE)

THERMOSTAT TERMINALS (MULTI-STAGE)THERMOSTAT TERMINALS (MULTI-STAGE)

C*C*

C*

C*C*

RR

R

RR

W2W2

W2

W2W2

E/W1E/W1

E/W1

E/W1E/W1

NOTE

To prevent static discharge problems, touch side ofTo prevent static discharge problems, touch side of

To prevent static discharge problems, touch side of

To prevent static discharge problems, touch side ofTo prevent static discharge problems, touch side of
thermostat to release static build-up before touchingthermostat to release static build-up before touching

thermostat to release static build-up before touching

thermostat to release static build-up before touchingthermostat to release static build-up before touching
any keys.any keys.

any keys.

any keys.any keys.

If at any time during testing your system does not operate
properly, contact a qualified serviceperson.

Fan OperationFan Operation

Fan Operation

Fan OperationFan Operation

If your system does not have a
Heating SystemHeating System

Heating System.

Heating SystemHeating System

1. Turn on power to system.

2. Move FAN switch to
to operate.

3. Move FAN switch to
stop immediately.

ON ON

ON position. The blower should begin

ON ON

AUTO AUTO

AUTO position. The blower should

AUTO AUTO

!

Do not allow the compressor to run unless the com-Do not allow the compressor to run unless the com-

Do not allow the compressor to run unless the com-

Do not allow the compressor to run unless the com-Do not allow the compressor to run unless the com­pressor oil heaters have been operational for 6 hourspressor oil heaters have been operational for 6 hours

pressor oil heaters have been operational for 6 hours

pressor oil heaters have been operational for 6 hourspressor oil heaters have been operational for 6 hours
and the system has not been operational for at leastand the system has not been operational for at least

and the system has not been operational for at least

and the system has not been operational for at leastand the system has not been operational for at least
5 minutes.5 minutes.

5 minutes.

5 minutes.5 minutes.

Heating SystemHeating System

Heating System

Heating SystemHeating System

1. Press SYSTEM button to select the
the auxiliary heating system has a standing pilot, be sure
to light it.

2. Press
temperature. The heating system should begin to
operate. The display should show
setpoint temperature display is flashing, the compressor
lockout feature is operating (see Configuration menu,
item 5).

3. Adjust temperature setting to 3° above room temperature.
If your system configuration is set at MS2, HP2 or HP1,
the auxiliary heat system should begin to operate and the
display should show

4. Press
ture. The heating system should stop operating.

to adjust thermostat setting to 1° above room

“STG1+2”“STG1+2”

“STG1+2”.

“STG1+2”“STG1+2”

to adjust the thermostat below room tempera-

G G

G terminal connection, skip to

G G

CAUTION

Flame iconFlame icon

Flame icon ( ). If

Flame iconFlame icon

“STG1”“STG1”

“STG1”. However, if the

“STG1”“STG1”

one transformer. If transformer safety circuits are in only one of
the systems, remove the transformer of the system with NO
safety circuits. If required, replace remaining transformer with
a 75VA Class II transformer. After disconnecting one trans­former, the two commons must be jumpered together.

Use the terminal output information below to help you wire the
thermostat properly for your multi-stage system. After wiring,

CONFIGURATION CONFIGURATION

see

CONFIGURATION section for proper thermostat configu-

CONFIGURATION CONFIGURATION

ration.

Y2Y2

Y2

Y2Y2

EMER bypasses the Heat Pump to use the heat source wired
to terminal E on the thermostat. EMER is typically used when
compressor operation is not desired, or you prefer back-up
heat only.

1. Press SYSTEM button to select EMER.
on the display.

2. Press to adjust thermostat setting above room
temperature. The Aux. heating system will begin to
operate. The display will show

and
operating.

3. Adjust temperature setting to 3° above room temperature.
The auxiliary heat system should begin to operate and the
display should show

4. Press
ture. The Aux. heating system should stop operating.

To prevent compressor and/or property damage, ifTo prevent compressor and/or property damage, if

To prevent compressor and/or property damage, if

To prevent compressor and/or property damage, ifTo prevent compressor and/or property damage, if
the outdoor temperature is below 50°F, DO NOTthe outdoor temperature is below 50°F, DO NOT

the outdoor temperature is below 50°F, DO NOT

the outdoor temperature is below 50°F, DO NOTthe outdoor temperature is below 50°F, DO NOT
operate the cooling system.operate the cooling system.

operate the cooling system.

operate the cooling system.operate the cooling system.

1. Press SYSTEM button to select the

2. Press
temperature. The blower should come on immediately on
high speed, followed by cold air circulation. The display
should show

3. Adjust temperature setting to 3° below room temperature.
The second stage cooling should begin to operate and
the display should show

4. Press
temperature. The cooling system should stop operating.

Y1Y1

Y1

Y1Y1

Emergency SystemEmergency System

Emergency System

Emergency SystemEmergency System

Flame iconFlame icon

Flame icon (

Flame iconFlame icon

to adjust the thermostat below room tempera-

!

Cooling SystemCooling System

Cooling System

Cooling SystemCooling System

to adjust thermostat setting below room

“STG1”“STG1”

“STG1”.

“STG1”“STG1”

to adjust the temperature setting above room

GG

G

GG

Heat if configured Mode Emergency

to Electric Heat) Modes

“STG1”“STG1”

“STG1” flashing

“STG1”“STG1”

) to indicate that the Aux. system is

“STG1+2”“STG1+2”

“STG1+2”.

“STG1+2”“STG1+2”

OO

O

OO

“EMER”“EMER”

“EMER” will flash

“EMER”“EMER”

CAUTION

Snowflake iconSnowflake icon

Snowflake icon ( ).

Snowflake iconSnowflake icon

“STG1+2”“STG1+2”

“STG1+2”.

“STG1+2”“STG1+2”

BB

B

BB

“EMER”“EMER”

“EMER”

“EMER”“EMER”

4