Friedrich YS12M33, YS10M10, YM18M34, YL24M35, ES15M33 User Manual

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Room Air Conditioners

AUTO

°F°C AUTO CONTINUOUS

AUTO

SYSTEM FAN MODE

SCHEDULE FAN SPEED

Installation and Operation Manual

Standard Chassis Models

115-Volt:

208-230-Volt:

115-Volt:

208-230-Volt:

920-198-00 (11-09)

SS08M10, SS10M10, SS12M10, SS14M10 SS12M30, SS15M30, SM18M30, SM21M30

SL2 5M30, SL28M30, SL 36M30

YS10M10 ES12M33, ES15M33, YS12M33, EM18M34,

YM18M34, EL25M35, EL36M35, YL24M35

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Congratulations!

Thank you for your decision to purchase the Friedrich High Efﬁ ciency Air Conditioner. Your new Friedrich has been carefully engineered and manufactured to

give you many years of dependable, efﬁ cient operation, maintaining a comfortable temperature and humidity level. Many extra features have been built into your unit to assure quiet operation, the greatest circulation of cool, dry air, and the most economic operation.

THANK YOU, on behalf of our entire company,

for making such a wise purchase.

AIR CONDITIONING CO. SAN ANTONIO, TEXAS ASSEMBLED IN MEXICO

Model information can be found on the name plate behind the front cover.

Please complete and mail the owner registration card furnished with this product, or register online at www.friedrich.com (USA only). For your future con ve nience, record the model information here.

MODEL NUMBER

SERIAL NUMBER

PURCHASE DATE

COOLING

VOLTS 115

MODEL NUMBER

HEATING

REFRIGERANT

XXXXXXXXX

XXXXXXXXXX

FUSE PROTECTED

600 PSIG HS

XXXXXXXXX

CIRCUITS USE 15A

300 PSIG LS

XXXXXXXXXX

TIME DELAY FUSE

XXXXXXXXXX

X XX XXXXX XXXXXXXXXX

AIR CONDITIONING CO.

SAN ANTONIO, TEXAS

ASSEMBLED IN MEXICO

MODEL NUMBER YS10M10A SERIAL NUMBER LICY00008

BTH/HR 6500

60 HZ / 1 PH

YS10M10A

BTH/HR 6500

30.1 OZ R410A

EER 12.0

VOLTS MIN 108

SERIAL NUMBER

EER 10.4

AMPS 8.0

LICY00008

AMPS 7.0

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Table of Contents

Safety Precautions ................................................................................................................................................................................................................... 4

Unpacking Instructions............................................................................................................................................................................................................. 5

WARNING: Before Operating Your Unit ..................................................................................................................................................................................6

Standard Filter Cleaning / Installation Instructions .................................................................................................................................................................. 7

Premium Carbon Filter Installation Instructions ....................................................................................................................................................................... 8

Control Panel Operation ........................................................................................................................................................................................................ 10

Add a Remote Thermostat ..................................................................................................................................................................................................... 14

Remote Thermostat Selection ............................................................................................................................................................................................... 14

Remote Control Operation ..................................................................................................................................................................................................... 15

Remote Effectiveness ............................................................................................................................................................................................................ 15

Airﬂ ow Selection and Adjustment .......................................................................................................................................................................................... 17

Installation Instructions .......................................................................................................................................................................................................... 18

Standard Window Installation ................................................................................................................................................................................................ 20

Cord Routing Change ............................................................................................................................................................................................................ 30

Through-the-Wall Installation ................................................................................................................................................................................................. 32

Programmable Thermostat ....................................................................................................................................................................................................36

Final Inspection & Start-up Checklist..................................................................................................................................................................................... 38

Routine Maintenance ............................................................................................................................................................................................................. 39

Service and Assistance ......................................................................................................................................................................................................... 39

Available Accessories ............................................................................................................................................................................................................ 39

Troubleshooting Tips .............................................................................................................................................................................................................. 40

Addendum 1 ........................................................................................................................................................................................................................... 42

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Safety Precautions

We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages.

WARNING

CAUTION

All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what will happen if the instructions are not followed.

920-198-00

Your safety and the safety of others are very important.

This is a safety Alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol with the word “WARNING” or “CAUTION”. These words mean:

Indicates a hazard which, if not avoided, can result in severe personal injury or death and damage to product or other property.

Indicates a hazard which, if not avoided, can result in personal injury and damage to product or other property.

NOTICE

Indicates property damage can occur if instructions are not followed.

WARNING

Refrigeration system

under high pressure

Do not puncture, heat, expose to flame or incinerate.

Only certified refrigeration technicians should service this equipment.

R410A systems operate at higher pressures than R22 equipment. Appropriate safe service and handling practices must be used.

Only use gauge sets designed for use with R410A. Do not use standard R22 gauge sets.

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Unpacking Instructions

STEP 1. Cut all 4 packing straps.

STEP 2. Remove wooden shipping bar dividers.

STEP 3. Remove top foam pads.

STEP 4. Slowly remove outer box, careful not to loosen decorative front.

STEP 5. Slide the foam front support forward

STEP 6. Carefully lift decorative front box from foam front support

STEP 7. Remove decorative front and set safely aside

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WARNING: Before Operating Your Unit

WARNING

Electrical Shock Hazard

Make sure your electrical receptacle has the same configuration as your air conditioner’s plug. If different, consult a Licensed Electrician.

Do not use plug adapters. Do not use an extension cord. Do not remove ground prong.

Always plug into a grounded 3 prong oulet. Failure to follow these instructions can result in death, fire, or electrical shock.

Make sure the wiring is adequate for your unit.

If you hav e fus es, t hey sho uld b e of the t ime d ela y typ e. B efor e you ins tall or relocate this unit, be sure that the amperage rating of the circuit breaker or time delay fuse does not exceed the amp rating listed in Table 1.

DO NOT use an extension cord.

The cord provided will carry the proper amount of electrical power to the

unit; an extension cord may not.

Make sure that the receptacle is compatible with the air conditioner cord plug provided.

Proper grounding must be maintained at all times. Two prong receptacles must be replaced with a grounded receptacle by a certiﬁ ed electrician.

The grounded receptacle should meet all national and local codes and

ordinances. You must use the three prong plug furnished with the air conditioner. Under no circumstances should you remove the ground prong from the plug.

Test the power cord

All Friedrich room air conditioners are shipped from the factory with a Leakage Current Detection Interrupter (LCDI) equipped power cord. The LCDI device on the end of the cord meets the UL and NEC requirements for cord connected air conditioners.

To test your power supply cord:

1. Plug power supply cord into a grounded 3 prong outlet.

2. Press RESET (See Figure 1).

3. Press TEST, listen for click; the RESET button trips and pops out.

4. Press and release RESET (Listen for click; RESET button latches

and remains in). The power cord is ready for use.

NOTICE

Do not use the LCDI device as an ON/OFF switch.

Failure to adhere to this precaution may cause premature equipment malfunction.

Once plugged in, the unit will operate normally without the need to reset th e LC DI de vic e. If the LCD I dev ice f ail s to t rip w hen t est ed o r if t he po wer su pply cord is da mag ed, i t mu st be repl aced with a ne w pow er s uppl y cor d from the manufacturer. Contact our Technical Assistance Line at (800) 541-6645. To expedite service, please have your model number available.

Tabl e 1.

MODEL

SS08M10, SS10M10, SS12M10, SS14M10, YS10M10

SS12M30, SS15M30, SM18M30, SM21M30

SL25M30, SL28M30, ES12M33, ES15M33, YS12M33

SL36M30, EM18M34, EL25M35, EL36M35, YM18M34, YL24M35

Figure 1

RESET

WARNING

TEST BEFORE EACH USE

1. PRESS RESET BUTTON

2. PLUG LCDI INTO POWER RECEPTACLE

3. PRESS TEST BUTTON, RESET BUTTON SHOULD POP UP

4. PRESS TEST BUTTON, FOR USE DO NOT USE IF ABOVE TEST FAILS

WHEN GREEN LIGHT IS ON IT IS WORKING PROPERLY

CIRCUIT RATING

OR TIME DELAY

AMP VOLT

15 125 5-15R

15 250 6-15R

20 250 6-20R

30 250 6-30R

TEST

FUSE

TEST BEFORE EACH USE

1. PRESS RESET BUTTON

2. PLUG LCDI INTO POWER RECEPTACLE

3. PRESS TEST BUTTON, RESET BUTTON SHOULD POP UP

4. PRESS TEST BUTTON, FOR USE DO NOT USE IF ABOVE TEST FAILS

WHEN GREEN LIGHT IS ON IT IS WORKING PROPERLY

REQUIRED

WALL

RECEPTACLE

NEMA

NO.

TEST

RESET

WARNING

15/20A LCDI Device 30A LCDI Device

FRR001

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Standard Filter Cleaning / Installation Instructions

STEP 1. Swing the door open and remove the ﬁ lter by grasping the

ﬁ lter grip and pushing the ﬁ lter holder upward and outward.

Figure 2

STEP 2. Slide the ﬁ lter grip out from the ﬁ lter as shown in Figure 4.

NOTE: Make sure the front frame with the mesh ﬁ lter is facing you.

Figure 4

FILTER

FILTER GRIP

Figure 3

FILTER GRIP

FRR071

HANDLE

FRR052

FRR047

STEP 3. Swing the front frame open. Clean the front frame by washing

the dirt from the ﬁ lter. Use a mild soap solution if necessary. Allow ﬁ lter to dry.

Figure 5

TOP TAB

FRONT FRAME WITH STANDARD MESH FILTER

FRR048

STEP 4. Install the ﬁ lter grip back into the ﬁ lter by sliding it into the ﬁ lter.

NOTE: The ﬁ lter handle slides into the frame in only one direction. If

the tab in the frame stops the handle from sliding in, slide the handle from the other direction. Do not force the handle into

the frame.

STEP 5. Install the ﬁ lter back into the unit. Follow the Instructions on

the inside of the front door.

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Premium Carbon Filter Installation Instructions

STEP 1. Remove the ﬁ lter from the unit as per the instructions on the

inside of the ﬁ lter door.

STEP 2. Hold the ﬁ lter at the top and slide the ﬁ lter grip out as shown

in Figure 4.

STEP 3. If you already have a carbon ﬁ lter installed remove the dirty

ﬁ lter by laying the ﬁ lter down and swinging open the front frame

as shown in Figure 6.

NOTE: Make sure the frame with the mesh is facing towards you.

STEP 4. Place the new carbon ﬁ lter on the top of the back ﬁ lter frame.

The carbon ﬁ lter has been cut to the correct dimension and

should ﬁ t within the frame as shown in ﬁ gure 7

NOTE: The carbon ﬁ lter is not a re -usable ﬁ lter, and needs to be replaced

every three months for optimum efﬁ ciency.

STEP 5. Slide the ﬁ lter handle back on to hold the frames together

and slide the assembly into the unit as per the instructions

on the door.

NOTE: The ﬁ lter handle slides into the frame in only one direction. If

the tab in the frame stops the handle from sliding in, slide the handle from the other direction. Do not force the handle into

the frame.

Figure 6

Figure 7

FRONT FRAME WITH MESH FILTER

FRR051FRR050

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Control Panel Operation

Let’s check out how to control your air conditioner. On the control panel, ju st t o the lef t o f th e POW ER control panel function buttons and mode icons can be viewed in Figure 8.

Power On – Press the power button will illuminate to indicate the power is on. The backlight on the power switch will automatically dim to 20% intensity after 15 seconds of inactivity. The remote control can also be used to turn power ON / OFF (See Remote Control).

Display – The display is a high efﬁ ciency LCD with a built-in white back light. The back light has an automatic two (2) step dim function. After 15 seconds of inactivity, the display dims to 20% intensity. After an additional 120 seconds, the display switches off. Touching buttons will automatically bring the display to full brightness.

There are four control push buttons on each side of the display.

SYSTEM Button – Allows the user to sequentially select,

, HEAT , and FAN ONLY operation. Press the the display advances to the next mode. A new icon appears. At the same time, the mode displays for two (2) seconds, then returns the display to the temperature set point for modes other than FAN. Note that when the heating function is not available, the system will automatically skip the HEAT

and

AUTO

modes.

FAN MODE Button – Selects between automatic operation. In the

AUTO

compressor operates or the heat function is enabled.

In the FAN ONLY Mode,

CONTINUOUS

. In the

selection on the

CONTINUOUS

FAN

SPEED

button.

Figure 8

AUTO MODE

COOL

MODE

, is a liquid crystal display (LCD). All of the

button to turn on the air conditioner. The

AUTO

Cool

button and

CONTINUOUS

AUTO

SYSTEM

mode, the fan only turns on and off when the

AUTO

is not available. The display indicates

mode, fans speed is determined by your

HEAT

MODE

FAN ONLY MODE

MAINTENANCE

REQUIRED

FAN SPEED Button – Used to sequentially select between fan speeds. Depending on your model, you can select between LOW, MED, HIGH, and MAX and AUTO. Max setting not on SL or Kühl + models). When

FAN

the

button is pressed, the fan speed is temporarily displayed in the

SPEED

display window, plus a fan speed icon (triangle) changes to indicate the new speed level when auto is selected. Fan speed automatically varies depending on the set temperature on the control panel and the actual room temperature. Let me explain. Say for example you’re working in your garage and you need to open the big door for several minutes. The air conditioner will sense a wide difference between the set temperature and the actual room temperature when this occurs the system fan speed increases to MAX. The fan speed decreases (in step) as the temperature difference decreases. When the set point temperature is reached the FAN speed returns to the original setting.

SCHEDULE Button – The and off. The current day of the week is indicated as a dot underneath the day symbol. Pressing the

SCHEDULE

button turns the schedule function on

SCHEDULE

button a second time turns the schedule function off. The schedule function comes preprogrammed with recommended energy savings values (Addendum 1). The values may be changed through the schedule program function (See Programmable Thermostat).

UP and DOWN arrows – Pressing either

(UP) or (DOWN) button changes the desired room temperature. The factory preset lower and upper limits are 60° F (16° C) and 99° F (37° C). These buttons are also used to navigate between function options when using the User Menu or Maintenance Mode.

BACK Button – This button is used after a menu item has been selected. It takes the user back to the previous menu level.

DISPLAY/ENTER Button – This button is used in conjunction with User Menu and Maintenance Mode operation to select items.

Alerts – The control system has ﬁ ve (5) customer alerts.

FRONT PAN EL LOCK

FILTER MAINTENANCE

WAIT

SYSTEM

FAN

MODE

FAN

AUTO

CONTINUOUS

AUTO

OUTDOOR TEMP

% RH

CHECK FILTERONOFF

HEAT ->

SPEED

SCHEDULE

BUTTONS BUTTONS

SCHEDULE

ON/OFF

TFS

WAKE

AWAY

SCHEDULE

RETURN NIGHT

PERIODS

EXIT RESET

<- COOLROOM TEMP SET POINT

BACK

DISPLAY

ENTER

POWER

FRR002

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CHECK FILTER – When the ﬁ lter needs to be checked, an icon appears on screen. The word “

CHECK

The

alert is issued when the fan run time is greater than 500 hours.

FILTER

RESET

” appears next to the

BACK

CHECK FILTER

button.

This alert may be reset by the user (Refer to Special Functions, Filter Reset).

Maintenance Required – When maintenance is required, a service icon

appears on screen. This icon will not be dismissed until maintenance

has been performed. If the service icon

ﬂ ashes, maintenance is re quir ed an d mu st on ly be perfo rm ed b y qu aliﬁ ed ser vice personnel. When the icon

is on standby the system has sensed an abnormal condition. For example: The air in/out louvres may be blocked. Once proper air ﬂ ow is established the service icon

Wait – The WAIT icon

illuminates when the compressor lockout is active.

goes away.

Whenever the compressor shuts off, system pressures must be allowed to equalize. At this time, an internal timer begins a count-down from up to 240 seconds. If a demand for heat or cool occurs during this count-down the WAIT icon

displays letting you know that the compressor will not operate until the count-down has completed. This timer prevents damage to the unit if it tries to start too quickly after it stops running. Normally the WAIT icon

is off. Once the timer has cleared, the air conditioner will he at o r coo l ba sed o n th e te mper atu re s etti ng. Ele ctric hea t is not affe cted by this timer.

Protection Alert (Freeze) – If the room freeze protection is active, the display indicates this by showing Room Freeze Protection "FRZ". Once the condition is satisﬁ ed, the “FRZ” display is removed. If the room temperature is less than 40° F (4° C), and the air conditioner is equipped with electric heat, the room freeze protection will activate. The air conditioner will run high fan and electric heat until the room temperature reaches 46° F (8° C). Pressing the

BACK

button delays the freeze protection function

for ﬁ ve (5) minutes.

Low Battery – When the battery is low a warning display

will be

inserted before other messages such as “COOL”. If the Low Battery

alert is on, the battery in the control unit must be changed. Refer to the changing the battery procedure. Once the battery is changed, the alert message will go off. Refer to Troubleshooting Tips. Under normal conditions the battery life should be greater than 7 years.

Special Functions

Panel Lock inadvertent operation. To lock the front panel, press and hold the

DISPLAY

ENTER

buttons for three (3) seconds. A double beep indicates your mode change was successful and a the display, press and hold the The

Filter Reset – If the and holding the

CHECK

system timer was reset and the

FILTER

no longer be visible.

User Menu Functions – The User Menu Functions allows you to change the following selections: Set TIME, 12/24 Hour Clock Format, BEEP ON / OF F, DI M O N / O FF, E mer ge ncy He at ( EMHT ) O N / O FF, A uto BA ND Ad just , F/ C Select, FRZ ON / OFF and Temp Offset.

To enter the User Menu, press and hold selection appears. Use the through the User Menu. Press the function. If left inactive for 15 seconds the User Menu display will no longer be visible and it returns to normal operation mode display. To manually exit the User Menu, press the

– The front panel push buttons can be locked to prevent

icon appears on the display. To unlock

DISPLAY

SCHEDULE

buttons for three (3) seconds.

ENTER

icon will no longer be visible.

CHECK FILTER

icon displays, the timer may be reset by pressing

button for three (3) seconds. A beep indicates the

BACK

CHECK

icon and the word "

FILTER

DISPLAY

ENTER

for 3 seconds, the TIME

(UP) or (DOWN) buttons to scroll

DISPLAY

ENTER

button to enter the displayed

BACK

button.

RESET

SCHEDULE

" will

BACK

SYSTEM

FAN

MODE

FAN

SPEED

SCHEDULE

EXIT

DISPLAY

ENTER

The hour digits flash first. The user presses the or to change the hours. To change AM-PM, the hours must be advanced 12 hours. Press the key to change to the minutes. To exit the selection process, user presses the

DISPLAY

ENTER

BACK

key which will go to the time screen.

The minutes digits flash. The user presses the or to change the minutes. Press the key to change the days. To exit the selection process, the user presses the key

DISPLAY

ENTER

BACK

which will go to the time screen.

The dot underneath the days of the week begins to blink to indicate which day it is. If the user has not set the date before the dot starts on Monday. If the user is making a correction to previously set information the dot appears under whichever day the unit thinks it is. The user can press or to move the dot left or right (respectively) along the week. The user presses to loop back to the hours setting. To exit the selection process, the user presses the key which will go

DISPLAY

ENTER

BACK

to the time screen.

Tuesday has been selected. The user presses to loop

DISPLAY

ENTER

back to the hours setting. To exit the selection process and accept the changes, the user presses the key which will go

BACK

to the time screen.

FRR062

Time Setting – When in the User Menu, on the Control Panel, use the

(UP) and

ﬂ ashes. Use the

DISPLAY

ENTER

. The minutes segment and AM or PM ﬂ ashes. Use the (UP) and

(D OWN) to s elect TIM E. Pus h

(UP) and

(DOWN) to set the hour, then push

(DOWN) to set the minutes, then push

NOTE: If the AM or PM indicator is incorrect, push

segment ﬂ ashes, use the

(UP) or the hour segment 12 hours, then push displays. Use the day. Press the

(UP) or

BACK

key to go back to the TIME screen. Press

DISPLAY

, the hours segment

ENTER

DISPLAY

ENTER

DISPLAY

until the hours

ENTER

(DOWN) to advance

DISPLAY

. The day of the week

ENTER

(DOW N) to selec t the c urrent

(UP) to go to the next menu 1224.

NOTE: Pressing the

BACK

button again will exit the user menu function mode. Or simply leave the control inactive for 15 seconds and the control will return back to normal operation.

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BACK

SYSTEM

FAN

MODE

FAN

SPEED

SCHEDULE

EXIT

DISPLAY

ENTER

User presses or to toggle the format between 12HR and 24HR display. To exit the selection process and accept the change, press the key.

Clock Type – You may select between a 12 hr and 24 hr clock. When 1224 is displayed press the

BACK

DISPLAY

key then press (UP) or

ENTER

FRR063

(DOWN)

to toggle between 12 hr and 24 hr clock. To accept the change, press the

BACK

key to return to the 1224 screen. Press the (UP) to go to the

next menu BEEP.

BACK

SYSTEM

FAN

MODE

FAN

SPEED

SCHEDULE

User presses or to toggle between Beep On and Beep Off. Press the key to accept the change and exit the

BACK

selection process.

EXIT

DISPLAY

ENTER

FRR064

BACK

SYSTEM

FAN

MODE

FAN

SPEED

SCHEDULE

EXIT

DISPLAY

ENTER

The menu allows the user to adjust the minimum spread between the Auto Cool set point and the Auto Heat set point. Press the or key to adjust. The adjust range is 3 to 10.

FRR066

Auto Changeover ‘Dead Band’ – For Kühl+ models with the auto changeover feature you can select the temperature band between heating and cooling. From the factory the band is set at 3° F (-16° C). The band is adjustable from 3° F (-16° C) to 10° F (-12° C). When BAND is displayed press the 3 and 10. To accept the change, press the

DISPLAY

key then press

ENTER

SYSTEM

FAN

MODE

FAN

SPEED

SCHEDULE

(UP) or

(DOWN) to toggle between

BACK

key to return to the BAND

BACK

EXIT

DISPLAY

ENTER

User presses or to select between AUTO, DM 20, OFF. Press the key to accept the change and exit the

BACK

selection process.

Audible Alerts – You can select to have the control beep when buttons are pushed at the unit control or when a signal is received from the remote control. When BEEP is displayed press the or

(DOWN) to toggle between ON and OFF. To accept the change,

press the

BACK

key to return to the BEEP screen. Press the (U P) to go

DISPLAY

key then press

ENTER

(UP)

to the next menu EMHT on Kühl+ models or F C for Kühl models.

BACK

SYSTEM

FAN

MODE

FAN

SPEED

SCHEDULE

EXIT

DISPLAY

ENTER

User presses or to toggle between Emergency Heat On and Emergency Heat Off. Press the key to accept the

BACK

change and exit the selection process.

FRR065

Emergency Heat – The Kühl+ heat pump models (YS, YM, YL) have a special feature that is designed to bring the temperature of the space up quickly when the unit is ﬁ rst cycled into the heating mode. With the emergency heat feature enabled the electric heat will be used to bring the temperature up to the setpoint initially, then utilize the energy saving heat pump mode to maintain the temperature. If the emergency heat feature is not selected the unit may take more time initially to reach the setpoint at the initial selection of heat. When EMHT is displayed press the key then press

(UP) or To accept the change, press the Press the

(UP) to go to the next menu BAND.

(DOWN) to toggle between ON and OFF.

BACK

key to return to the EMHT screen.

DISPLAY

ENTER

The Dim Auto automatically dims the display and then turns it off after a period of time. The Dim 20 setting behavior is similar to AUTO, but prevents the display from turning off. Minimum brightness is 20%. The Dim Off setting forces the display to run at full brightness.

FRR067

BACK

SYSTEM

FAN

MODE

FAN

SPEED

SCHEDULE

EXIT

DISPLAY

ENTER

User presses or at the same time to toggle between Fahrenheit or Celsius as their temperature unit of choice. Press the key to accept the change and exit the selection

BACK

process.

FRR068

screen. Press the

Fahrenheit / Celsius Selection – You may select between displaying temperature in F or C. When F C is displayed press the press

(UP) or (DOWN) to toggle bet ween F and C. To accept the

change, press the

(UP) to go to the next menu F C.

DISPLAY

ENTER

key to return to the F C screen. Press the

BACK

key then

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SYSTEM

FAN

MODE

FAN

SPEED

SCHEDULE

920-198-00

BACK

EXIT

DISPLAY

ENTER

User presses or to select between Freeze Protection On & Freeze Protection Off. Press the key to accept the

BACK

change and exit the selection process.

FRR069

(UP) to go to the next menu FRZ.

Freeze Protection – The Kühl+ models have a special feature that is designed to keep the interior space above freezing by energizing the electric heater anytime the indoor room temperature falls to 40° F (4° C). With the freeze protection feature turned on, when the unit senses the indoor temperature fall to 40° F (4° C) the unit will run the heater and high fan until the space reaches 46° F (8° C) When FRZ is displayed press

DISPLAY

the

key then press (UP) or

ENTER

SYSTEM

FAN

MODE

FAN

SPEED

SCHEDULE

User presses or to increment/decrement the temperature offset (TO) for the room temperature sensor. (Maximum offset = +/- 8 degrees F). Press the key to accept the change and exit the selection process

(DOWN) to toggle between ON

BACK

EXIT

DISPLAY

ENTER

BACK

FRR070

BACK

and OFF. To accept the change, press the screen. Press the

(UP) to go to the next menu TO.

key to return to the FRZ

Temperature Offset – In some cases the built in thermostat on the unit may not display the temperature as it is felt in the room. This can be caused by many things including the size of the unit, the heat load on the room or other factors. Friedrich allows you to select the appropriate temperature offset to make the temperature readout as accurate as possible for your application. In many cases the factory 0° F (-18° C) offset will provide an accurate temperature readout. To change the offset follow these instructions. When TO is displayed press the (UP) or

(DOWN) to toggle between 0° F (-18° C) and 8° F (-13° C).

DISPLAY

key then press

ENTER

In most instances an offset from 0° F (-18° C) to 2° F (-17° C) is all that is necessary. To accept the change, press the screen. Press the

(UP) to go to the next menu TIME.

You may cycle through the menus using the

BACK

key to return to the TO

(UP) or (DO WN) k eys

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to access any of the menus.

Add a Remote Thermostat

Remote Thermostat – An external thermostat may be added to the air conditioner to provide remote temperature sensing and control. The thermostat interface connector is located on the panel behind the front grille. To enable the remote thermostat operation, remove the jumper

Figure 9

THERMOSTAT CONNECTOR

CD1

4. Changing modes on the remote thermostat will not illuminate the Control Panel LCD.

Remote Thermostat Selection

Friedrich recommends the use of either the RT4 or RT5. The RT4 is a digital display thermostat with single speed fan control. The RT5 features a digital display, two fan speed selection, battery backup and backlight.

POWER CORD

TO REMOTE THERMOSTAT

Tab l e 2

Terminal Code Wire Connection Function

Interface Deﬁ nitions

C Common Ground Terminal

GH Call for Heating

GL Call for Compressor

Y Call for low fan

W Call for high fan

THERMOSTAT WIRE ROUTING USE #18 AWG COLORED THERMOSTAT WIRE

24V Power from Electronic Control to Wall Thermostat

Call for heat pump reversing valve

between terminals 11 & 12 on the terminal block. Connect the thermostat using Figure 9 and Table 2 as a guide.

If you connect an external thermostat, all Control Panel buttons will be disabled with the following exception:

1. Maintenance commands (double button press & single button extended press).

DISPLAY

2. The

ENTER

button for Freeze protection.

3. First Button pushed, illuminate the LCD.

FRR004

Other the rmostats may be used as l ong as they are conﬁ g ured correctly fo r the unit. For cooling models a sin gle stage cooling t hermostat with C, R, G , Y terminals must be used. For ele ctric heat ‘E’ mode ls a single stage heating a nd cooling thermo stat with C, R, G, Y, W terminals must be used. For heat pump ‘Y’ models a single stage heating and cooling thermostat with C, R, G, Y, W, B terminals must be used.

CAUTION

It is the installer’s responsibility to ensure that all control wiring connections are made in accordance with the installation instructions.

Improper connection of the thermostat control wiring and/or tampering with the unit’s internal wiring can void the equipment warranty.

Failure to follow these instructions can result in personal injury and damage to product or other property.

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