Friedrich Metal Products WE13B33B-B Service Manual

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WS10B10A­WS14B10A­WS10B30A­WS13B30B­WS16B30A­WE10B33A-B
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arrant

Routine Maintenance

nit Identifi cation
Performance Data

Electrical Data...........................................................................................................................................7

Functional Component Defi nitions........................................................................................................

Electronic Controls

NTENT

Rotary Control
Refrigeration Sequence of Operation
Sealed Refrigeration Repairs
Refrigerant Charging

eneral Troubleshootin
Wiring Diagrams

Parts Diagram .........................................................................................................................................

Parts Lists..........................................................................................................................................7-29

1

12-1

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£

Friedrich Air Conditioning Company

P.O. Box 1540

San Antonio, TX 78295

210.357.4400

www.friedrich.com

WALLMASTER

THRU-THE-WALL AIR CONDITIONERS

LIMITED WARRANTY

FIRST YEAR

ANY PART: If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within twelve months from

date of original purchase, FRIEDRICH will repair the product at no charge, provided room air conditioner is reasonably accessible
for service. Any additional labor cost for removing inaccessible units and/or charges for mileage related to travel by a Service
Agency that exceeds 25 miles one way will be the responsibility of the owner. This remedy is expressly agreed to be the exclusive
remedy within twelve months from the date of the original purchase.

SEALED REFRIGERANT SYSTEM: If the Sealed Refrigeration System (defined for this purpose as the compressor, condenser
coil, evaporator coil, reversing valve, check valve, capillary, filter drier, and all interconnecting tubing) supplied by FRIEDRICH in
your Room Air Conditioner fails because of a defect in workmanship or material within sixty months from date of purchase,
FRIEDRICH will pay a labor allowance and parts necessary to repair the Sealed Refrigeration System; PROVIDED FRIEDRICH will
not pay the cost of diagnosis of the problem, removal, freight charges, and transportation of the air conditioner to and from the
Service Agency, and the reinstallation charges associated with repair of the Sealed Refrigeration System. All such cost will be the
sole responsibility of the owner. This remedy is expressly agreed to be the exclusive remedy within sixty months from the date of the
original purchase.

APPLICABILITY AND LIMITATIONS: This warranty is applicable only to units retained within the Fifty States of the U.S.A., District
of Columbia, and Canada. This warranty is not applicable to:

1. Air filters or fuses.

2. Products on which the model and serial numbers have been removed.

3. Products which have defects or damage which results from improper installation, wiring, electrical current

OBTAINING WARRANTY PERFORMANCE: Service will be provided by the FRIEDRICH Authorized Dealer or Service
Organization in your area. They are listed in the Yellow Pages. If assistance is required in obtaining warranty performance, write

to: Room Air Conditioner Service Manager, Friedrich Air Conditioning Co., P.O. Box 1540, San Antonio, TX 78295-1540.

LIMITATIONS: THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER WARRANTIES. Anything in the warranty
notwithstanding, ANY IMPLIED WARRANTIES OF FITNESS FOR PARTICULAR PURPOSE AND/OR MERCHANTABILITY
SHALL BE LIMITED TO THE DURATION OF THIS EXPRESS WARRANTY. MANUFACTURER EXPRESSLY DISCLAIMS AND
EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE FOR BREACH OF ANY EXPRESSED OR
IMPLIED WARRANTY.

NOTE: Some states do not allow limitations on how long an implied warranty lasts, or do not allow the limitation or exclusion of

consequential or incidental damages, so the foregoing exclusions and limitations may not apply to you.

OTHER: This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
PROOF OF PURCHASE: Owner must provide proof of purchase in order to receive any warranty related services.

All service calls for explaining the operation of this product will be the sole responsibility of the consumer.
All warranty service must be provided by an Authorized FRIEDRICH Service Agency, unless authorized by FRIEDRICH prior to

repairs being made.

characteristics, or maintenance; or caused by accident, misuse or abuse, fire, flood, alterations and/or misapplication
of the product and/or units installed in a corrosive atmosphere, default or delay in performance caused by war,
government restrictions or restraints, strikes, material shortages beyond the control of FRIEDRICH, or acts of God.

SECOND THROUGH FIFTH YEAR

(10-04)

R

OU

CE

y.

.

ed.

.

y

y

g

TINE MAINTENAN

NOTE: Units are to be inspected and serviced by qualifi ed service personnel onl

outine maintenance is required annually or semi-annually, depending upon annual usage.

1. Clean the unit air intake fi lter at least every 250 to 300 fan hours of operation or when the unit’s indicator light is on if
so equipped. Clean the fi lters with a mild detergent in warm water and allow to dry thoroughly before reinstalling.

2. The indoor coil (evaporator coil), the outdoor coil (conden ser coi l) and base pan should be inspected periodically (yearl

r bi-yearly) and cleaned of all debris (lint, dirt, leaves, paper, etc.). Clean the coils and base pan with a soft brush and
ompressed air or vacuum. If using a pressure washer, be careful not to bend the aluminium fi n pack. Use a sweepin

up and down motion in the direction of the vertical aluminum fi n pack when pressure cleaning coils. Cover all electrical

omponents to protect them from water or spray. Allow the unit to dry thoroughly before reinstalling it in the sleeve.

NOTE: Do not use a caustic coil cleaning agent on coils or base pan. Use a biodegradable cleaning agent and degreaser.

Inspect the indoor blower housing, evaporator blade, condenser fan blade, and condenser shroud periodically (yearly or

bi-yearly) and clean of all debris (lint, dirt, mold, fungus, etc.) Clean the blower housing area and blower wheel with an
antibacterial / antifungal cleaner. Use a biodegradable cleaning agent and degreaser on condenser fan and condenser
shroud. Use warm or cold water when rinsing these items. Allow all items to dry thoroughly before reinstalling them.

. Periodically (at least yearly or bi-yearly): inspect all control components, both electrical and mechanical, as well as the

power supply. Use proper testing instruments (voltmeter, ohmmeter, ammeter, wattmeter, etc.) to perform electrical
tests. Use an air conditioning or refrigeration thermometer to chec k room, outdoo r and c oil op erating temperatures.

se a sling psychrometer to measure wet bulb temperatures indoors and outdoors

4. Inspect the surrounding area (inside and outside) to ensure that the units’ clearances have not been compromised or

ter

. Inspect the sleeve and drain system periodically (at least yearly or bi-yearly) and clean of all obstructions and debris.

lean both areas with an antibacterial and antifungal cleaner. Rinse both items thoroughly with water and ensure that

the drain outlets are operating correctly. Check the sealant around the sleeve and reseal areas as needed

. Clean the front cover when needed. Use a mild detergent. Wash and rinse with warm water. Allow it to dry thoroughl

before reinstalling it in the chassis.

FRIEDRICH R

OO

CODE

E

E

Electric Heat

g)

n

3

s

T

S

l

T

r

C=3

J=9

A

7

8

Y

A

0

8

J=9

A

t

Prod

C

GU

M MODEL NUMBER

1st DIGIT - FUNCTION

W = Thru-The-Wall, WallMaster Series

nd DIGIT - TYP

S = Straight Cool

=

Y = Heat Pump

rd & 4th DIGITS - APPROXIMATE BTU/HR (Coolin

eating BTU/HR capacity listed in Specifi cations/Performance Data Sectio

5th DIGIT - ALPHABETICAL MODIFIER

6th DIGIT - VOLTAGE

1 = 115 Volts

= 230-208 Volt

7th DIGI

= Straight Cool & Heat Pump Models

ELECTRIC HEAT MODEL
3 = 3 KW Heat Strip, Nomina

W S 08 B 1 0 B

th DIGI

ajor Change

RAC SERIAL NUMBER IDENTIFICATION

Serial Numbe

ecade Manufactured

L=0

=1 D=4 G=

B=2 E=5 H=

ear Manufactured

=1 D=4 G=7 K=

B=2 E=5 H=

=3 F=6

Month Manufactured

=Jan D=Apr G=Jul K=Oc
=Feb E=May H=Aug L=Nov
=Mar F=Jun J=Sept M=Dec

F=6

IDE

roduction Run Number

R = RAC
P = PTA
E = EAC

H = Split

uct Line

=

y

PERFORMANCE DATA

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9

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5

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2
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0
2

8

3

9

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7

6

2

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3

2

9

2

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4

3

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2

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5

7

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2

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90

9

0

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80

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Sleeve Dimensions

27 1/4

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17 1/4

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26 1/2

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hassis

15

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1

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38.0

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5.0

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15

29

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1

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AL RATIN

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RE

OPERATING

2 1

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Tem

Tem

Tem

. F

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out

in
E

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10

76

51 12

2

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08B10

10B10

iquid

uction

e

ischar

CONDENSER

.

TEMP. DE

EVAPORATOR

.

emp.

e

TEMP. DE

VAPORATOR AIR

ischar

106 16

179

1179

12

5

2

14B10 A 5

10B30

9

10

54

17

50 12

51 5

9

2

13B30

16B3 0A 5

9

10

10

10

2 9

80

80

80

80

17

26

26

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E10B33

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9

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B

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Cooling

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o

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.

.

WS08B10A

WS10B10A

1005/996

2.

4.6/5.

30/20

3

0000/10000

WS14B10A

WS10B30A

404/137

756/170

1005/996 16.0/14.7 3550/295

.3/6.7

7.8/8.5

4.6/5.

30/20

30/20

30/20

2500/12000

5800/15000

0000/10000 11000/910

B33A

WS13B30

WS16B30A

WE1

404/137

756/170

.3/6.7

7.8/8.5

30/20

30/20

2500/12000 11000/910

5800/15000 11000/910

B

B33A

WE1

WE1

389/135

1013/976

.4/6.

4.6/4.

30/20

30/20

0100/9800 8100/7800

2500/12100 10400/10000

B33

B

WY1

WY1

n
ti

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n Inf
ti

ll

nst

a

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ppearanc

ace

-

- 1

WS13B30A

WS10B30A

V - 1

WS16B30

- 20

50V - 20

WE16

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, WY13

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NEMA#

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V - 1

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e

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12

10B10A,

08B10A, W

14B10 A

W

W

ircuit Ratin

* Rating Conditions: 80 degrees F, room air temp. & 50% relative humidity,with 95 degree F, outside air temp & 40% relative humidit

Calculate the heat loss of the space to be heated. As long as the heat loss does not exceed the resistance heating capacity rating of the unit, the heating performance will be satisfactor y. Change-ove
from heat pump operation to resistance operation on models indicated is automatic at a preset outside ambient temperature of approximately 35°F. If condensate disposal is desired, an optional drain
kit is available. DEFROST CONTROL: Initiated at 20°F (outdoor coil temperature) and terminated at 43°F (outdoor coil temperature). During defrost, the compressor stops and the electric heat starts,
then operates with the fan to maintain indoor comfor t. Below 43°F, the unit remains in electric heat mode. During electric heat mode, the unit will achieve the following ratings: 11000

6.0/14.7 amps, and 3550/2950 watts. DEFROST DRAIN: Drain automatically opens at approximately 50°F in outdoor base pan for defrost condensate disposal

9100 BTU/h,

.

g

d.

each of se

ce

use an extension cord

o

.

.

A

.

.

.

ELECTRICAL DATA

Wire Size Use ONLY wiring size recommended for

single outlet branch circuit
Fuse/Circuit Use ONLY type and size fuse or HACR
Breaker circuit breaker indicated on unit’s ratin

plate. Proper current protection to the unit

is the responsibility of the owner.
Grounding Unit MUST be grounded from branch

ircuit through service cord to unit, or
through separate ground wire provided on
permanently connec ted units. Be sure that
branch circuit or general purpose outlet is

rounde

eceptacle The fi eld supplied outlet must match plug on

rvice cord and be within r

ord. Do NOT alter the service cord or plug.

NOT

the table above for proper receptacle and

use type.

rvi

. Refer t

LECTRIC SHOCK HAZARD

Turn off electric power before service or installation

ll electrical connections and wiring MUST be

installed by a qualifi ed electrician and conform to the

ational Elect rical Code and all local codes whic h

ave jurisdiction

Failure to do so can result in property damage,

ersonal injury and/or death

The consumer - through the AHAM Room Air Conditioner Certifi cation Program - can be certain
that the AHAM Certifi cation Seal accurately states the unit’s cooling and heating capacity rating,
the amperes and the energy effi ciency ratio

FUNCTIONAL

CO

S

e

°F.

y

ffuse

used to direc

.

heel

.

g

.

s

at

l

y

.

p

y

®

switch

.

d

g

p

®

models.

p

p

g

e

.

py

)

MPONENT

A. Mechanical components

Bellows condensate valv
Temperature-sensitive valve that opens up to drain off condensate water when the outside temperature falls below 40°F
and closes when the outside temperature reaches 58

i

r with directional louvers

wer w

Attaches to the indoor side of the fan motor shaft and is used for distributing unconditioned, room side air though the heat

xchanger and delivering conditioned air into the room

Attaches to the outdoor side of the fan motor shaft and is used to move outside air through the condenser coil, while
slinging condensate water out of the base pan and onto the condenser coil, thus lowering the temperature and pressures
within the coil

t the conditioned airfl ow

. Electrical component

Thermost

sed to maintain the specifi ed room side comfort leve

sed to regulate the operation of the fan motor, the compressor or to turn the unit off. For troubleshooting, refer to the

wiring diagrams and schematics in the back of this service manual

educes line current and steadies the voltage supply, while greatly improving the torque characteristics of the fan motor

and compressor motor .

When engaged, it sends the power supply to the fan motor through the thermostat, which allows for a cycle-fan operation

n Motor

ual-shafted fan motor operates the indoor blower wheel and the condenser fan blade simultaneously.

lenoi

sed to energize the reversing valve on all heat pump units.

lectric resistance heater, available in 3.3, 4.0 or 5.2 kW on select TwinTem

sed to provide better thermostat and room air temperature control.

C. Hermetic components

otorized device used to compress refrigerant through the sealed system.

A four-way switching device used on all heat pump models to change the fl ow of refrigerant to permit heating or cooling.

heck valv

A pressure-operated device used to direct the fl ow of refrigerant to the proper capillary tube, during either the heating or

ooling cycle

A cylindrical meter device used to evenly distribute the fl ow of refrigerant to the heat exchangers (coils.

YSTEM CONTROL PANEL

)

E

”

Acti

”

WS

ode is ac

e.

gging

onfunctiona

y

y

.

l

)

e

”

button o

WS models

T

/

g

.

S

d

)

g

Code Mode

.

y

.

“WS” Models

Figure 6: System Control Pane

PM

Speed

Timer

On/Off

72

Fan

Mode

Hour

Set

Cool

Money Saver

Fan Only

Clock

Start Time

Stop Time

Power

®

Tem p/ Hou r

ESTING THE ELECTRONIC CONTROL

CHECKING ROOM TEMPERATUR

1. Check the room temperature at the electronic c ontrol
pad by pressing at the same time the

utton and the temperature

UP” button on XQ

odels

2. The indoor temperature will display for 10 seconds.
Indoor temperature can be viewed in all modes,
including the TEST mode. The display can be changed
back to SET temperature by pressing any key, except
the ON/OFF button, or after 10seconds has elapsed.

ACTIVATING TEST MODE

vate test mode by pressing at the same time the

utton and the temperature

DOWN” button on XQ

odels. LEDs for Hour , Start, and Stop will blink 1bps while

Test M

tiv

Test Mode has duration of 90 minutes. Test Mode

an be activated under any conditions, including Off.
Test Mode is cancelled by pressing the On/Off button,
unplu

the unit, or when the 90 minutes is timed

ut. All settings revert to the factory default settings of

ool, 75 degrees F, Timer and Set Hour features are

n

l.

FAN SPEED

WS

MODE

Activating Error Code Mode

ubmode of Test Mode

nit must be in T est Mode to enter Error Code Mod

1. Activate Error Code Mode by pressing the

ON/OFF

n XQ

LED for the

TIMER ON/OFF” will fl ash 1bps while Error Code

ode is active. Pressing the

TEMP/HR+ ” button will

display 00. Consecutive presses will scroll t hrough all

rror codes logged. Press the

TEMP/HR

tton
to see the reverse order of all error codes logged.
When the end of logged error codes is reached the
temperature set point will appear.

MPORTAN

rror Codes are cleared from the log by exiti ng from Error

ode Mode. To e xit on XQ & WS models, press Timer On

button. Or unplug unit to exit Error Code Mode. Plu

unit in after 5 seconds to resume normal operation of unit

RROR CODE LIS TING

1 SHORT CYCLE SITUATION: Defi ned as

ompressor powered on before the three minute

time delay ten times in one hour. Investigate an

orrect short cycling problem.

2 KEYBOARD STUCK ER ROR: If key button(s

are pressed continuously for twenty seconds or
more. If

ODEkey is stuck, unit will default to

ool. Exit Error Code Mode to see if error “E2”

is no longer displayed and unit is functioning.

eplace board if “E2” still displays after exitin
rror

.

3 FROST PROBE OPEN: Normal operation is

allowed. Ohm frost probe. Replace probe if ohm
value not read. If ohm value present replace

rd.

4 FROST PROBE SHORT: Normal operation

allowed. Replace probe.

5 INDOOR PROBE OPEN: Control assumes

indoor ambient temperature is 90 degree F and
unit will operate. Ohm indoor probe. Replace

robe if ohm value not read.

6 INDOOR PROBE SHORT: Control assumes

ambient temperature is 90 degree F and unit will

perate. Replace probe

T est Mode overrides the three-minute lockout, all dela

or compressor and fan motor start / speed change, and

no dela

when switching modes

Test M ode default settings are ON, Money Saver, 60
degrees F, and High fan speed.

s

NOTE: All Error Code displays for Frost & Indoor Probe

will allow unit to operate. Unit may or will ice up if fault

omponents not replaced