Friedrich Sh24m20-a, Sh20m50-a, Sh20m50a-a Owner's Manual

Installation & Operation Manual

Hazardous Duty Room
Air Conditioner

Power

emperature

T

ISA 12.12.01 and NFPA 70-10
(National Electric Code)

Article 501

Class I , Div. 2 Groups A,B,C, & D

Article 505

Class I , Zone 2, Groups IIA
IIB + H and IIC

240/220 V, 50 HZ : SH20*
230/208V : SH15, SH20
230/208V, 60 HZ ; 240/220V

, 50 HZ : SH 24*

ATEX*

II 3 G Ex nA nC IIC T4 Gc

DEMKO 15 ATEX 1364X

IECEx*

Ex nA nC IIC T

IECEx UL15.0051X
8˚ C ≤ T

Gc

amb ≤ 55˚ C

5/27/2015 93031005_06

Table of Contents

Operation and Care Instructions

Your Safety and the safety of others ...........................................................................2

General Instructions ....................................................................................................3

Filter Information .........................................................................................................4

Maintenance Checklist ................................................................................................4

Special Features .........................................................................................................5

Control Panel ............................................................................................................. 5

Underwriters Laboratories ...........................................................................................6

Installation Instructions

Electrical Requirements ...............................................................................................7

Unpacking the Unit .......................................................................................................9

Chassis Wiring and Preparation ...................................................................................9

Shell Preparation ........................................................................................................10

Shell Installation ..........................................................................................................11

Sash Window ..............................................................................................................11

Through-the-Wall ........................................................................................................14

Chassis Installation .....................................................................................................17

WARRANTY ...............................................................................................................19

AVERTISSEMENT

Ne pas supprimer, désactiver
ou contourner cette l’unité des
dispositifs de sécurité. Faire
vous risqueriez de provoquer,
le feu, les blessures ou la mort.

Ne pas ouvrir lorsque une
atmosph
pré

sente.

Ne pas séparer sous
tension.

THINK

SAFETY

FIRST

WARNING

Do not remove,
disable or bypass this
unit’s safety devices.
Doing so may cause,
fire, injuries or death.

Do not open when an
explosive atmosphere
is present.

Do not separate when
energized.

ADVERTENCIA

No eliminar, desactivar o pasar
por alto los dispositivos
de seguridad de la unidad. Si
lo hace podria producirse
fuego, lesiones o muerte.

No abra cuando se encuentre en
una atmósfera explosiva.

No separar cuando se encuentre
bajo tensión.

ère explosive est

To avoid the buildup
of electrostatic charge,
regularly clean the unit
with a damp cloth.

Para evitar la acumulación de
cargas electrostáticas, limpie
regularmente la unidad con un
paño húmedo.

Pour éviter l’accumulation de
charges électrostatiques,
nettoyer régulièrement l’appareil
avec un chiffon humide.

Congratulations!

Thank you for your decision to purchase the Friedrich Hazardgard (Hazardous Duty Room Air Conditioner). Your new Friedrich
has been carefully engineered and manufactured to give you many years of dependable, efficient 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.

General Instructions

This Installation and Operation Manual has been designed to insure maximum satisfaction in the performance of your unit. For
years of trouble-free service, please follow the installation instructions closely. We cannot overemphasize the importance of
proper installation. We have added new information to the basic instructions to help you achieve proper installation.

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.

Here are some suggestions to help you use your
new Friedrich most efficiently:

1. Carefully read and follow the installation instructions.

2. Make sure the unit is the right capacity for the area to be
cooled. An undersized unit makes the unit work too hard,
using more electricity than needed and increases wear. An
oversized unit will cycle on and off too rapidly, and therefore
cannot control humidity very well.

3. When you first turn on your Friedrich, set the thermostat to
its coldest position to cool the room. When the desired
temperature is reached, turn the thermostat control toward
the “warmer” position until you hear a click and the
compressor goes off. The thermostat will then cycle the
compressor to maintain the selected temperature.

4. Clean the filter frequently (See Filter Information)

5. Do not
louvers are directed to give even distribution of air
throughout the room. Caution: If air directed into a restricted
area such as a corner, this may cause the unit to cycle on and
off rapidly, which could damage your unit.

6. A dirty filter or improperly set controls can affect the cooling
ability of the unit.

7. If cooling is weak and you have verified that the filter is
clean and the controls are properly set, the unit may be low
on refrigerant, and you should call your Friedrich service
provider to check the unit.

8. Keep blinds, shades and drapes closed on the sunny side of
the room being cooled.

9. Proper room insulation helps your unit maintain the desired
inside temperature.

block the air flow to and from the unit. Make sure the

WARNING

Please read this manual thoroughly prior to equipment
installation or operation.

It is the installer’s responsibility to properly apply and
install the equipment. Installation must be in
conformance with the NFPA 70-2008 National Electric
Code or current edition, International Mechanic Code
2009 or current edition and any other applicable local
or national codes.

Failure to do so can result in property damage,
personal injury or death.

10. Whenever possible, shade west-facing windows with
awnings , trees, or window tinting.
.

11. Keep window treatments away from the unit to provide free
air flow.

Your safety and the safety of others are very important.

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

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

WARNING

CAUTION

and damage to product or other property.
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.

NOTICE

followed.

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

Indicates property damage can
occur if instructions are not

3

FilterInformation

The filter in your Friedrich removes dust, pollen and other
impurities from the air as they are drawn through the unit.
The filter is permanent and reusable, and has a germicidal
treatment which is not affected by periodic washing.

A clogged, dirty filter reduces the air flow through the unit and
reduces its efficiency. You should check the filter every seven
to ten days, depending on the amount your unit is used. Clean
the filter regularly.

FILTER RETAINER CLIPS

The lter can be removed for cleaning by opening the front of

the unit and releasing the

Maintenance Checklist

Won’tCool

If the unit operates, but doesn’t cool, check to see that the con­trols are properly set. Inspect the filterand if needed, clean it

thoroughly.

(refer to installation instructions).

Won’tRun

If the unit does not operate at all, check that the power supply
connections are present and tight. Check for blown fuses or

tripped circuit breakers. Replace blown fuses with the
proper size time-delay fuse.The nameplate on the unit shows
the proper fuse size. After restoring power, wait three minu­tes before restarting the unit.

Inside CoilFreezes Up

YourFriedrichHazardgard is designed nottofreezewith outdoor
temperatures as low as 45°F (7°C). Freezing should only occur
when the outsideair is dampand below45°F (7°C). If theindoor

Check to see if thechassis seal gasket is installed

lter from its retaining clips.

coil shouldiceover while cooling, setthe thermostat tothewarm­estpositionuntil theiceonthecoil isgone. Settingthe thermostat
toa slightlywarmer positionwillprobably keep icefromforming
on the coil. A dirty filter will contribute to coil icing.

Cleaning

The front grille of your Friedrich, as well as the complete cabi­net may be cleaned with warm water and a mild detergent. The
coils and base pan should be cleaned periodically for the most
efficient operation. We suggest you call your Friedrich dealer
for this service.

Lubrication

Fan motors are factory lubricated and sealed. No lubrication
is required.

4

Hazardgard Special Features

Permanent Split-Capacitor, totally enclosed fan motor to
assure
conditions. Motor has a special stainless steel shaft to resist
corrosion and a hermetically sealed overload for arc-free
operation.

High capacity compressorwith internal hermetically sealed
overload.

Contains transient voltage suppressor to protect controls
against transient voltage spikes. Provides solid state
switches for arc-free operation.

Hot gas bypass low ambient control to permit operation
without freezing at outdoor ambient temperatures as low as
45°F (7°C).

IP4X Environmentally sealed electrical components protect
against ingress of moisture ( ATEX & IECEx )

operation even under adverse electrical

Galvanized steel cabinet and base pan, all bonderized.

Slide-out chassis for easy installation in window or
through–the–wall.

Extra insulation inside, including completely insulated

Entire unit test run in environmental chamber before crating.

Condensate drain with exclusive mosquito trap.

.deriuqeresufyaled-emithtiwtiucric pma02 ro pma51

Accommodates direct wiring.

Long lasting 3/8" (10 mm) thick air
treated, easily removed for cleaning.

germicidally

Polyester powder

Friedrich Air Conditioning quality has been proven by more than 30 years of successful experience from the Gulf of Mexico to

the searing sands of the Arabian desert.

oven-baked for an attractive, long-

Control Panel

Function Control (Power)

This switch is a double pole, single throw toggle switch.
On - Turns everything on.

WARNING

Temperature Control

The knob at the bottom is the thermostat which is a cross ambient
type used to maintain the desired comfort level. The thermostat
reacts only to a change in temperature at the bulb location - turn
the knob clockwise to set cooler, counterclockwise for warmer.

designed to cool living quarters and other enclosures situated in

POWER MUST BE DISCONNECTED AT CIRCUIT
BREAKER/FUSE BEFORE SERVICING!

gases are handled or used with enclosed containers or systems.

Friedrich Hazardgard room air conditioners are designed to meet the
National Electrical Code, Article 500 requirements for Class I, Division
2, Groups A,B,C,D Hazardous locations, CERTIFIED BY UNDERWRITERS
LABORATORIES FOR USE IN CLASS 1, DIVISION 2, GROUPS A,B,C,D
HAZARDOUS LOCATIONS.

5

ATEX & ICEX Standards Specific to Models SH20N50AT & SH24N20AT

SH20N50AT and SH24N20AT Adhere to the following certifications:

CERTIFIED PER STD. NO. ANSI/ISA 12.12.01,2013

PER STD. NO. IEC 60079-0, 6th Edition
PER STD. NO. IEC 60079-15, 4th Edition
PER STD. NO. CAN/CSA C22.2 NO 152-92, REV 2003-06
PER STD. NO. CENELEC EN 60079-0: 2012 + A11: 2013
PER STD. NO. CENELEC EN 60079-15: 2010

CERTIFICATION DEMKO 15 ATEX 1364X

IECEX UL15.0051X

SH20N50AT & SH24N20AT Specific Conditions of
Use:

• Provision shall be made to prevent the rated voltage
being exceeded by the transient disturbances of more
than 140% of the peak rated voltage.

• Only for use in locations providing adequate protection
against the entry of solid foreign objects or water
capable of impairing safety.

• The equipment must be installed only for use in locations
providing adequate protection against the entry of solid
foreign objects or water capable of impairing safety.

• Only permanently wired cables may enter the cable
glands. The user shall provide for the required strain
relief.

• Degree of protection will be safeguarded only when
sealing and cable entry fittings are properly fitted. The
Manufacturer’s instructions must be followed.

• Cable Glands shall be mounted into the enclosure in
such a way that they are mechanically protected
against impact force.

• To avoid the buildup of electrostatic charge,
regularly clean the unit with a damp cloth.

NOTICE: To maintain IP40 protection, the Hazardgard unit must be
installed in accordance to the installation instructions stated in this
document.

6

Installation Instructions

Models SH15, SH20 and SH24

NOTE: THIS MANUAL INCLUDES INSTALLATION INSTRUCTIONS FOR BOTH WINDOW MOUNT AND THROUGH-

THE-WALL INSTALLATIONS

WARNING

Explosion Haza rd

Electrically connect unit in acco rdance with NEC
Code Article 501. Failu re to do so can result in

re, or electrical shock.

Electrical Shock Haza rd

Electrical Requirements

ALL FIELD WIRING MUST MEET THE REQUIREMENTS OF THE NATIONAL ELECTRICAL CODE (ANSI/NFPA 70)
ARTICLE 501.

THE FIELD-PROVIDED CIRCUIT PROTECTION DEVICE (HACR CIRCUIT BREAKER OR TIME DELAY FUSE) MUST
NOT EXCEED THE AMPACITY INDICATED ON THE PRODUCT NAMEPLATE.

IMPORTANT: Before you begin the actual installation of your air conditioner, check local electrical codes and the information
below.

Your air conditioner must be connected to a power supply with the same A.C. voltage and frequency (hertz) as marked on the name
plate located on the chassis. Only alternating current (A.C.), no direct current (D.C.), can be used.

An overloaded circuit will invariably cause malfunction or failure of the air co
electrical power is adequate. Consult your dealer or power company if in doubt.

The following instructions are for HAZARDGARD models and cabinet sizes listed below.

nditioner; therefore, it is extremely important that the

)D x W x H( EZIS TENIBACSPUORG

15

/16" x 25 15/16" x 27 3/8"

SMALL CHASSIS SH15

MEDIUM CHASSIS SH20 , SH24

epyT gulPrebmuN ledoM

7

15

(405 mm x 660 mm x 695 mm)

15

/16" x 25 15/16" x 27 3/8"

17

(455 mm x 660 mm x 695 mm)

Circuit Rating

Time Delay Fuse

250V-15 Amp, 250V-20 AmpxoB noitcnuJSH20, SH24

pmA 51-V052xoB noitcnuJ51HS

Window MountInstallation Hardware

ITEM DESCRIPTION QTY.

No.

SHELL MOUNTING PARTS

2TEKCARBTROPPUS1

2 SCREW, 10 - 24 x 1" HEX HEAD 4

4TUNDLEWTALF42-013

4 SCREW, SHEET METAL #12A x 2" 7

WINGBOARD ANGLE MOUNTING

5 WINGBOARD ANGLE, TOP 1
6 WINGBOARD ANGLE, SIDE 2
7 SCREW, SHEET METAL #8A x 3/8" 2

WINGBOARD MOUNTING PARTS

8 WINGBOARD (MASONITE) - (NOT SHOWN) 1

4TUNDEEPSEPYT"J"9
10 WINGBOARD CLIP
11 SCREW. #8A x 1/2" PHILLIPS TRUSS HD. 4

(SPRING STEEL) 4

ITEM # 2

ITEM # 3

WINDOW SEALING

12 1
13

WINDOW SEAL GASKET (DARK FOAM)

ITEM # 7

ITEM # 9

ACCESSORY DETAIL

ITEM # 13

ITEM # 4

1CHASSIS SEAL GASKET (LIGHT FOAM)

ITEM # 11

ITEM #10

ITEM # 12

ITEM # 1

ITEM # 6

ITEM # 5

NOT TO SCALE

8

Unpacking The Unit

STEP1 Remove decorative plastic return air grille to a safe area away from the unit.

STEP2

Remove the installation hardware, wingboard and two (one lighter colored and one dark colored) gaskets from beside the
unit, and place them in a safe area away from the unit.

STEP3 Remove the chassis retainer by removing the far right screw in the basepan (see Figure A); save this screw to reattach the

chassis retainer after installation.

Also, remove and discard the two retainer screws and plastic bushings located at the rear

of the unit.

STEP4 While an assistant holds the cabinet stationary, use the hand pull at the front of the base pan (see Figure A) to pull the

chassis out of the cabinet Remove white foam blocks used to restrain the compressor during shipment..

Figure A

PULL STRAP

HAND PULL

CABINET

CABINET

REAR RETAINER SCREWS &
BUSHINGS

HAND PULL

FAR RIGHT SCREW

Chassis Wiring and Preparation

STEP1

STEP2

STEP3

9

Remove the junction box, cover and screw from the shipping position underneath the fan motor. Install one
junction box

mounting leg in the upper left position facing the rear of the junction box. (See Figure A1.)

Remove and discard the threaded bushing wire protector from the conduit connector on the side panel
of the control compartment. Install eld supplied cable gland as required. Strip the wires only, approximately
1/2 inch (13 mm).

Insert all wires into the rear of the junction box and thread the box onto the Cable Gland until tight. Back

clockwise until the junction box is vertical with the mounting leg at the upper–right position
facing the box opening. Be sure that the shell can slide between this box and the chassis. NOTE: Field wiring
conductors to be copper and a minimum of 12 AWG. Complete junction box wiring and cover to prevent
ingress from dust and moisture. All wiring connections to the junction box are to be made with cable glands.

Figure A1

JUNCTION BOX MOUNTING

PROVIDED HARDWARE

1 JUNCTION BOX
2 MOUNTING LEGS
2 LEG SCREWS
2 HOLE COVERS
1 STAINLESS STEEL
GROUND SCREW
2 SCREWS
1 SHEET METAL SCREW

CHASSIS RETAINER

Wiring Connections at Wiring Box

Wire

Nut

BLK

System

Power

Use copper conductors only

BLK or WH

GRN

BLK

System
Ground

Shell (Cabinet) Preparation

It will be necessary to relocate the sill plate of the cabinet 2"
back from its shipping position,and the shellguides 4"forward,
to the forward-most hole in the shell rail. Discard the chassis
retainer wire disconnected in Section II, Step 3. The junction
box mounting legfrom Section VI, Step1,and the field-installed
conduit will retain the chassis to the shell.

IF THISINSTALLATION IS FORA SASH WINDOW– With
the wide flange and pilot holes of the sill plate forward, put the
screws/nuts in the rear holes of the sill plate and thir
from the front (the center of three square holes). Anchor the
side angles(Item #6) by engaging the tabs at each end of the sill
plate with the bottomloopsof the side angle. Engage the tabs at

d shell hole

each end of the top angle(Item #5) with the top loops of the side
angle. Install two (2) screws (Item #7) to secure the top angle
tabs and the side angle to the rear-most holes in the side of the
cabinet (See Figure B, below).

IF THIS INSTALLATION IS THROUGH A WALL – Turn
the sill plate end to end so that the wide flange with pilot holes
will be over the wall header (towards the rear) and two inches
from the front of the cabinet. Bend the tabs into the channel
of th

e sill plate, put the screws/nuts in the front holes of the sill
plate and into the second shell hole from the front. Use one bolt
on each side to secure the sill plate to the cabinet. (See Figure
C, below.)

Figure B

Figure C

CABINET

CABINET

BEFORE

TOP ANGLE (ITEM #5)

SCREW
(4 REQUIRED)

SIDE ANGLE
(ITEM #6) 2
REQUIRED

SILL PLATE
TAB

AFTER

8A X 3/8" LONG SCREW (ITEM #7)
2 REQUIRED

LOOP

Detail B-1

Detail B-2

TAB

LOOP

SILL PLATE

TURN SILL PLATE
END TO END

RETAINER, CHASSIS

(THIS SIDE ONLY)

DETAIL 2

BEND TABS DOWN

NOTE: HOLES
MOVED TO
BACK SIDE

NUT
(4 REQUIRED)

DETAIL 1

Position the sill plate into the
cabinet with the sill plate holes
to the back. Align the plate 2
inches from the front of the
cabinet and secure it with a nut
and bolt in each end.

10

Shell Installation: Sash Window Installations

WARNING

Falling Object Hazard

Not following Installation Instructions
for mounting your air conditioner can
result in property damage, injury, or
death.

STEP1 Check the window sill and frame to be sure they are in good condition and firmly anchored to the wall. Repair if

necessary.

STEP2 CABINETMOUNTING: Raise thelower window sash1/4" morethan the height ofthe cabinet. Carefullyslidethe cabinet

through the open window until the sill platechannel rests behindthe window sill and the top supportangle restsagainstthe
window (See Figure D). Center the cabinet side to side and drill three (3) 5/32" diameter pilot holes into the window sill
using the holes in the cabinet sill plate as a guide. Install three (3) #12A x 2" long screws (Item #4) (See Figure D).

Figure D

CENTER CABINET SIDE TO SIDE IN WINDOW

DRILL 3 5/32" PILOT HOLES AND INSTALL 3

#12A X 2" LONG SCREWS (ITEM #4)

TOP SUPPORT ANGLE

PULL WINDOW SASH DOWN BEHIND
THE TOP SUPPORT ANGLE

SIDE SUPPORT ANGLE

WINDOW SILL

LOCATE THE SILL PLATE GUIDE CHANNEL

JUST BACK OF THE WINDOW SILL.

Figure E

A 1" X 4" OR 2" X 4" SPACER SHOULD BE USED BE-

TWEEN THE WALL AND BRACKET WHEN INSTALLED

ON ALUMINUM,ASBESTOS OR VINYL SIDING.

3/8" (10 MM)
DOWN SLOPE

#12A X 2"
SCREW
(ITEM #4)

SUPPORT
BRACKET

SUPPORT BRACKET (ITEM #1)

10 - 24 FLAT WELDNUT (ITEM #3)

10 - 24 X 1" HEX HEAD SCREW (ITEM #2)

STEP3 OUTSIDE SUPPORT MOUNTING: Assemble the support brackets (Item #1)to the bottom rails of the cabinet with four

(4) 10-24 1" long screws (Item #2) and four (4) 10–24 flat nuts (Item #3). Adjust the support brackets to bring the bottom
pads in contact with the wall surface. (See Figure E.)

A 1" x 4" or 2" x 4" SPACER SHOULD BE USED BETWEEN THE WALL AND THE SUPPORT BRACKETS WHEN
INSTALLED ON ALUMINUM OR VINYL SIDING). Drill 5/32" (4 mm) dia. pilot holes, and secure the brackets to the wall with

) #12A x 2" long screws (Item #4). Adjust the support brackets to provide an approximate 3/8" (10 mm) down slope towardsthe

two (2
outside for drainage. Tighten all screws. (See Figure E).

11

Shell Installation: Thick Wall

The illustrations below show a standard frame construction
installation as well as some suggested ways of adapting the
support bracket to thick walls and large brick ledges.

Typical Installation Sill Plate

NOTICE

Instructions for mounting sleeve with slope must be obser­ved to prevent entry of water into room.

Failure to follow instructions can result in property damage.

Figure 1

WOOD
LEDGE

Figure 3

10 - 24 SCREW
10 - 24 FLAT NUT

3/8" (10 MM)
SLOPE DOWN

#12A X 2" SHEET METAL SCREW

1" X 2" OR 2" X 4" SPACER BETWEEN WALL
AND BRACKET SHOULD BE USED ON ALU­MINUM, ASBESTOS OR VINYL SIDING

BRICK LEDGE

3/8" (10 MM)
SLOPE DOWN

#12A X 2" SHEET METAL SCREW

2" X 4" SPACER

Figure 2

SHADED AREA

Figure 4

CUT
HERE

DISCARD

STONE LEDGE

3/8" (10 MM)
SLOPE DOWN

STONE LEDGE
OUTSIDE WALL

CUT TO FIT DIMENSION "A"
AND BEND DOWN TO FOR A
VERTICAL LEG

3/8" (10 MM) SLOPE DOWN

STRAIGHTEN TAB TO LAY FLAT ALONG
THE BOTTOM RAIL OF THE SHELL.

SECURE THE LONGEST SIDE OF
THE BRACKET TO THE SHELL.

ADJUST IN OR OUT TO
REST ON THE LEDGE

STEP4 CUT WINGBOARD PANELS: Measure and cut the wingboard panels from the supplied masonite (Item #8) to fit the

spaces between the side window channels and the sides of the cabinet (See Figure F).

NOTE: AFTER CUTTING PANELS, MAKE A TRIAL TEST TO SEE IF THEY FIT THE SPACE WITH ABOUT
1/8" CLEARANCE BEFORE GOING TO STEP 5.

Figure F

MEASURE DISTANCE "B" TO THE INSIDE
OF THE CHANNEL

CUT HERE AND DISCARD THE CENTER
WASTE MATERIAL

ON EACH SIDE

WINGBOARD

SUBTRACT 1/8" (3 MM) FROM
DIMENSION "B" AND MEASURE FROM
THE EDGE OF THE WINGBOARD (ITEM
# 8), MARK AND CUT WITH A SAW.

12

Figure G

"J" TYPE SPEED NUT (ITEM #9)

2 REQUIRED

SPRING STEEL CLIP (ITEM #10)
2 REQUIRED

CUT WINGBOARD PANEL

CENTER THE HOLE IN THE SPEED NUT OVER

THE SLOT IN THE WINGBOARD PANEL

CUT EDGE

SLIDE CLIP OVER CUT EDGE OF WINGBOARD PANEL

STEP5 ASSEMBLE CLIPS TO WINGBOARD PANELS: Assemble "J" type speed nuts (Item #9) and spring steel clips (Item

#10) to the edges of the cut wingboard panels (See Figure G).

Figure H

SECURE THE SIDE WINGBOARD PANELS TO
THE SIDE ANGLES WITH FOUR (4) #8 X 1/2"
LONG SCREWS (ITEM #11), TWO ON EACH SIDE.

TOP OF CABINET

PLACE WINGBOARD PANEL IN WINDOW JAM TO
COMPRESS THE SPRINGS INSIDE THE RUNNERS,
AND SWING THE PANEL INTO PLACE INDICATED
BY THE DOTTED LINE.

WINDOW JAM

SECTION A - A

STEP6 INSTALL SIDE WINGBOARD PANELS: Be sure that the cabinet has been secured to the window sill and the outside

support brackets have been installed as shown in Figures D and E on Page 10. Raise the window sash and install the right
and left side wingboard panels (See Figure H).

STEP7

INSTALL WINDOWSEALING GASKETS: Measure and cut the dark foam window seal gasket (Item#12) and
install it between the upper glass panel and the top part of the lower sash (See Figure I).

Figure I

FOAM WINDOW SEAL GASKET (ITEM #12)

NOTE: FOR REASONS OF SECURITY , THE CUSTOMER MUST PROVIDE A MEANS OF PREVENTING THE WINDOW

FROM OPENING.

STEP8 When possible, caulk the outside of the installation with industrial type caulking to prevent air and water leaks.

13

Shell Installation: Through-the-wall Installations

WARNING

Falling Object Hazard

Not following Installation Instructions
for mounting your air conditioner can
result in property damage, injury, or
death.

Wall Preparation

The maximum wall thickness permissible without special construction is determined by the model size to be installed. THE OUT-

SIDE CABINET CONDENSER AIR INTAKE LOUVERS MUST NOT BE BLOCKED BY EXTENDING INSIDE THE WALL
AREA. Observe the maximum wall thickness shown as dimension "A" in Figure J.

SpecialInstructions ForExtraThick Walls

For installation in walls exceeding the maximum thickness shown as dimension A, the following suggested construction

may apply. (See Figure J).

Figure J

15 1/8 " (384 MM)
MAXIMUM WALL THICKNESS

CONDENSER
AIR INTAKE
LOUVERS

TOP VIEW SHOWING BEVELED SIDES
FOR AIR INTAKE. WALL BELOW
UNIT MUST ALSO BE BEVELED TO
ASSURE PROPER TILT ANGLE.

EXTRA THICK WALL CONSTRUCTION

Top View

2" (51 MM) MINIMUM
BOTH SIDES

CONDENSER AIR
INTAKE LOUVERS

STEP1 CHECKING WIRING AND PLUMBING: Check all wiring and plumbing inside and outside the wall to be sure none

will be broken where the hole is to be cut.

STEP2 HOLE CONSTRUCTION: Depending on the size of the unit to be installed, layout the hole dimensions in accordance

with the chart below (See Figure K). Cut and frame in the hole to the finished dimensions. Use
2" x 4

" material for framing and follow the suggested typical installations in Figure L, M or N on Page 14.

NOTE: IF THE WALL CONSTRUCTION IS TYPICAL FRAME OR 2 X 4 STUDDING WITH BRICK OR STONE VENEERS,
LOCATE THE HOLE NEXT TO ONE OF THE STUDS. FOR MASONRY, CONCRETE OR CINDER BLOCK WALLS,
LOCATE THE HOLE FOR CONVENIENCE.

Figure K

HOLE SIZE REQUIREMENTS

FINISHED

DIMENSION

A 16-3/16" 18-3/16"

B 26-3/16" 26-3/16"

SH15

CHASSIS

NOTE: THESE DIMENSIONS ARE FOR FINISHED HOLE SIZE

SH20, SH24

CHASSIS

14

Figure L

CAULK ALL SIDES

WEATHER CABINET

FRAME WALL
CONSTRUCTION

SHIM THE VOID SPACE AT THE TOP AND
SIDES WITH WOOD AS REQUIRED

Figure M

Figure N

CAULK ALL SIDES

WEATHER CABINET

CAULK ALL SIDES

CABINET

BRICK VENEER
CONSTRUCTION

SHIM VOID SPACES AT TOP AND
SIDES WITH WOOD AS REQUIRED

SOLID MASONRY
CONSTRUCTION

15

MORTAR

STEP3 Slide the cabinet into the hole far enough to allow the guide-channel of the sill plate to contact the inside wall surface (See

Figure O).

STEP4

Drill three (3) 5/32" diameter pilot holes through holes in sill-plate into the framing and install three (3) #12 x 2" long
screws (Item #4) (See Figure O).

NOTICE

Instructions for mounting sleeve with slope must be observed to
prevent entry of water into room.
Potential property damage can occur if instructions are not
followed.

Figure O

TRIM MOULDING

SEE NOTE

SCREW #12A X 2" LONG

USE 3

TYPICAL INSTALLATION

CAULK ALL SIDES AIR TIGHT

3/8" (10 MM) SLOPE DOWN

NOTE: SUPPORT BRACKETS MAY BE OMITTED FROM
THROUGH-THE-WALL INSTALLATIONSIF THE CABINET IS
SECURED AS FOLLOWS. DRILL 2 HOLES IN EACH SIDE
AND INSTALL 4 FASTENERS (2 EACH SIDE).

USE #12A X 2" (51 MM) SCREWS, TOGGLE BOLTS OR
EXPANSION ANCHOR BOLTS AS SHOWN IN STEP 5.

SILL PLATE GUIDE CHANNEL

SUPPORT BRACKETS (ITEM 1) (SEE NOTE ABOVE)

INSIDE WALL SURFACE

SCREW #12 X 2" LONG, USE ONE IN EACH
BRACKET. DRILL 5/23 (4 MM) DIA. PILOT HOLES.

NOTE: ALTERNATE FASTENERS WHICH MAY BE USED FOR SECURING THE SILL PLATE IN THE WALL, AND THE

SUPPORT BRACKETS TO THE OUTSIDE WALL ARE NOT FURNISHED, BUT ARE AVAILABLE AT A LOCAL
HARDWARE STORE.

MOLLY OR TOGGLE BOLT EXPANSION ANCHOR BOLT

STEP5 Drill two (2)5/32" (4 mm) dia. pilotholes ineach sideat the locations shown (Figure O) and install four(4) #12x 2"screws

(Item #4). If the hole construction in Step 2 provides a sturdy mount with solid vertical studs, no support brackets are
required. The installation must support theweight of the unit pl

us an additional weight of 400 pounds (185 kg) on therear
of the cabinet. The support brackets may be used for through-the-wall installations as shown in Figure O, for additional
support.

STEP6 If desired, trim around the cabinet onthe room side with a suitable frame molding furnished by the installer (See Figure O).

16

Chassis Installation

STEP 1 Slide the chassis into the cabinet stopping approximately 3" from full insertion. Stuff the chassis seal gasket (Item #14) one

inch deep between the chassis and the cabinet (See Figure P). Begin at either bottom corner and go up the side, across the
top, and down the opposite side. Make sure that the gasket is behind the conduit connector (furthest from you). Push the

chassis into the shell the remaining distance so that the plastic front shrouds the front edge of the shell. Fasten the junction
box mounting foot to the shell with the sheet metal screw.

If chassis seal gasket is not installed, the operation of the unit will be negatively affected. Also, the operation noise and
outside noise will be amplifi ed.

NOTE:

Figure P

CAUTION

Excessive Weight Hazard

Use two or more people when
installing your air conditioner.

Failure to do so can result in
back or other injury.

CAUTION

Cut/Sever

Although great care has been
taken to minimize sharp edges
in the construction of your unit,
use gloves or other hand
protection when handling unit.

Failure to do so can result in minor
to moderate personal injury.

WARNING

Explosion Hazard

Electrically connect unit in accordance with NEC
Code Article 501. Failure to do so can result in
death, explosion, fire, or electrical shock.

Electrical Shock Hazard

Field wiring must be provided to this junction box in accordance with NATIONAL ELECTRIC CODE (NFPA 70, 2008
or current edition) ARTICLE 501. Field and equipment grounds are to be terminated at the post in the junction box with
the green screw provided. Equipment power leads are to be connected with the field supply by means of wire nuts (not
provided). Install the gasket and cover plate onto the junction box.

CHASSIS SEAL GASKET

17

STEP2 Be surethatthe filteris in placethen install the return air grille (See FigureQ). The top of the return air grille can bebutted

against the bottom of the discharge plenum. Snap the grille into place by pushingthe grille up and onto the unit's latches at
the bottom. (See Detail 4).

Figure Q

Discharge Air Plenum

DETAIL 2

Slot

Tab

Slot

Tab

Return Air Grille

DETAIL 1

DETAIL 1

STEP3

DETAIL 3

Return air grille

Latches

DETAIL 4

Side view

(Cutaway)

Latch

You have completed your installation. Conduct a review of your installation to insure that the unit is safely and
securely installed.

End of Life – Customers are advised to ensure that the unit is disposed of in accordance with federal, state and local
guidelines of their country. Contact your municipal department of public works to inquire about the procedures for
collecting and disposing of refrigerated appliances / air conditioners in your neighborhood.

18

Friedrich Air Conditioning Company

10001 Reunion Place, Suite 500

San Antonio, TX 78216

800.541.6645

www.friedrich.com

HAZARDGARD

®

ROOM AIR CONDITIONERS

LIMITED WARRANTY

LIMITED ONE YEAR PARTS WARRANTY

1. Limited warranty – One year. Friedrich warrants that it will provide a replacement for any part of this HazardGard Room Air

Conditioner found defective in material or workmanship for a period of one (1) year from the date of original purchase.

2. Limited warranty – One year. The Friedrich warranty also covers the cost of labor for repairing any compressor, condenser,
evaporator or inter-connecting tubing found defective within the warranty period, provid ing the unit is returned to an authorized
Friedrich Repair Station located wi thin the Continental United States.

The Friedrich warranty does not cover:

(1) Any charges for removal, transportation or reinstallation of the unit; (2) the cost of labor to replace parts other than those described
above; and (3) does not apply to any HazardGard Room Air Conditioner that has been subject to (a) accident, misuse, flood, fire, or
neglect; (b) repairs or alterations outside of the Friedrich Authorized Dealer or Service Center so as to affect adversely its performance
and reliability; or (c) any repairs or servicing as a result of using parts not sold or approved by Friedrich.

LIMITATIONS: This warranty is a LIMITED warranty. Anything in
FOR PARTICULAR PURPOSE AND MERCHANTABILITY SHALL BE LIMITED TO THE DURATION OF THE EXPRESS
WARRANTY. MANUFACTURER EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR
INCIDENTAL DAMAGES FOR BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY.

Performance of Friedrich’s Warranty obligation is limited to one of the following methods:

the warranty notwithstanding, IMPLIED WARRANTIES

1. Repair of the unit

2. A refund to the customer for the prorated value of the unit based upon the remaining warranty period of the unit.

3. Providing a replacement unit of equal value

The method of fulfillment of the warranty obligation is at the sole discretion of Friedrich Air Conditioning.

19