Friedrich MR09C1H User Manual

Models  
Indoor Unit  
12C1H  
MW09C1H MW  
Outdoor Unit  
MR09C1H MR12C1H  
920-088-01  
CONTENTS  
Operation and maintenance  
Notices for use  
......................................1  
.................................  
3
4
Typical Unit Components  
Operation of remote controll  
er  
.............................  
Remote Control Instructions  
7
............................  
.................................  
................................  
Routine Maintenance  
Basic Troubleshooting  
11  
12  
15  
Service & Assistance .................................  
Installation service  
installation ....... ................................  
16  
Typical Unit Dimensions ..............................18  
Install indoor unit  
Install outdoor unit  
...................................19  
..................................  
21  
22  
Checklist .........................................  
This symbol stands for the items  
should be forbidden.  
This symbol stands for the items  
should be followed  
Thank you for choosing Friedrich Air Conditioning, please read this owner's manual  
carefully before operating the unit and keep it carefully for consulation.  
This appliance is not intended for use by persons (including children) with reduced  
physical, sensory or mental capabilities or lack of experience and knowledge,  
unless they have been given supervision or instruction concerning use of the appliance  
by a person reponsible for their safety.  
Children should be supervised to ensure that they do not play with the appliance.  
Do not dispose this product as unsorted municipal waste.  
Collection of such waste separately for special treatment  
is necessary.  
Image shown in this operating instruction manual here is  
indicative only. Actual product you receive may differ!  
Notices for use  
Working principle and special functions for cooling  
Principle:  
Air conditioner absorbs heat in the room and transmit to outdoor and discharged, so that  
indoor ambient temperature decreased, its cooling capacity will increase or decrease by  
outdoor ambient temperature.  
Anti-freezing function:  
If the unit is running in COOL mode and in low temperature, there will be frost formed on  
the heat exchanger, when indoor heat exchanger temperature decreases below 32 , the  
ºF  
indoor unit microcomputer will stop compressor running and protect the unit.  
Working principle and special functions for heating  
Principle:  
Air conditioner absorbs heat from outdoor and transmits to indoor, in this way to increase  
room temperature. This is the heat pump heating principle, its heating capacity will be  
reduced due to outdoor temperature decrease.  
*
If outdoor temperature becomes very low, please operate with other heating equipments.  
*
Defrosting:  
When outdoor temperature is low but high humidity, after a long while running, frost will  
form on outdoor unit, that will effect the heating effect, at this time, the auto defrosting  
function will act, the heat running will stop for 8-10mins.  
*
During the auto defrosting, the fan motors of indoor unit and outdoor unit will stop.  
During the defrosting, the indoor indicator flashes, the outdoor unit may emit vapor.  
This is due to the defrosting, it isn't malfunction.  
*
*
After defrosting finished,the heating will recover automatically.  
*
1
Notices for use  
Anti-cool wind function:  
In "Heat" mode, under the following three kinds of state, if indoor heat exchanger doesn't  
arrive at certain temp., indoor fan will not start, in order to prevent cool wind blowing(within  
2 mins):  
1. Heating starts. 2.After Auto Defrost finished. 3.Heating under the low temperature.  
Working temperature range  
Indoor sideDB/WB(  
)
ºF  
Outdoor sideDB/WB(  
)
ºF  
Maximum cooling  
Minimum cooling  
Maximum heating  
Minimum heating  
95/75  
70/59  
75/---  
68/---  
115/86  
.
70/-  
75/60  
5/-  
The operating temperature range (outdoor temperature) for cooling unit is 32~115  
for cooling and heating unit is 5~115.  
2
Typical Unit Components  
Indoor unit  
(Image shown here is indicative only. Actual product you receive may differ)  
Air inlet  
Front Panel  
Display  
Wrapping Tape  
Wall Pipe  
Guide panel  
Filter  
Air outlet  
Wireless remote control  
Display iconOnly for some Units:  
Receiver  
Cooling  
Power/Run  
Heating  
Set temp.  
Dehumidify  
Outdoor unit  
Air in  
Drainage hose  
Air out  
3
Operation of Remote Controller  
1
START / STOP  
Press to start or stop operation.  
2
3
: Press to decrease temperature  
setting.  
: Press to increase temperature  
setting.  
4
5
FAN AUTO  
Press to set fan speed.  
MODE  
Press to select operation mode  
(AUTO/COOL/DRY/FAN/HEAT).  
6
7
SENSOR  
CLOCK  
Press it set clock.  
8
TIMER ON  
Press it to set auto-on timer.  
1
3
9
2
9
AIR SWEEP  
Press it set swing angle.  
5
4
6
10  
EXTEND  
8
11  
12  
TEMP  
7
TIMER OFF  
Press it to set auto-off timer  
10  
11  
12  
15  
13  
14  
TURBO  
SLEEP  
13  
14  
15  
LIGHT  
Press it to turn on/off the light.  
17  
4
Operation of Remote Controller  
26  
27  
25  
24  
23  
22  
16  
21  
17  
20  
18 19  
16  
MODE icon:  
20  
LIGHT icon:  
If MODE button is pressed,  
current operation mode icon  
is displayed by pressing the  
LIGHT button. Press LIGHT button  
again to clear the display.  
(AUTO),  
( COOL),  
(DRY), (FAN) or (HEAT  
only for heat pump models) will show.  
21  
LOCK icon:  
is displayed by pressing "+"  
and “-” buttons simultaneously. Press  
them again to clear the display.  
17  
SLEEP icon :  
is displayed by pressing  
the SLEEP button. Press this  
button again to clear the display.  
22  
23  
24  
SET TIME display:  
After pressing TIMER button, ON or  
18  
TEMP icon:  
Pressing TEMP button,  
OFF will blink.This area will show  
the set time.  
(set temperature),  
(indoor  
ambient temperature)  
(outdoor ambient temperature)  
and blank is displayed circularly.  
TURBO icon:  
is displayed when pressing the  
TURBO button.Press this button  
again to clear the display.  
AIR SWEEP  
19  
icon:  
is displayed when pressing  
the AIR SWEEP button.  
Press this button again to clear the  
display.  
DIGITAL display:  
This area will show the set tempe-  
rature. In SAVE mode,"SE" will be  
displayed. During defrosting opera-  
tion, “H1” will be displayed.  
5
Operation of Remote Controller  
26  
27  
25  
24  
23  
22  
16  
21  
17  
20  
18 19  
25  
26  
27  
SENSOR icon:  
EXTEND icon:  
is displayed when pressing the  
is displayed when pressing the  
EXTEND button. Press this button  
again to clear the display.  
SENSOR  
button. Press this button  
again  
to clear the display.  
FAN SPEED display:  
Press FAN button to select the  
desired fan speed setting (AUTO-  
Low-Med-High).Your selection will  
be displayed in the LCD windows,  
except the AUTO fan speed.  
6
Remote Control Instructions  
Remote Controller Description  
1
2
START / STOP  
:
Press this button to turn on the unit .Press this button again to turn off the unit.  
Press this button to decrease set temperature. Hold it down for above 2 seconds to  
rapidly decrease set temperature. In AUTO mode, set temperature is not adjustable.  
:
3
4
Press this button to increase set temperature. Hold it down for above 2 seconds to  
rapidly increase set temperature. In AUTO mode, set temperature is not adjustable.  
FAN AUTO  
:
,
This button is used for setting Fan Speed in the sequence that goes from AUTO,  
,
,
to  
then back to Auto.  
Auto  
Medium speed  
High speed  
Low speed  
5
MODE :  
Each time you press this button, a mode is selected in a sequence that goes from AUTO,  
, as the following:  
COOL,DRY, FAN,and HEAT  
*
FAN  
HEAT *  
AUTO  
COOL  
DRY  
*Note: Only for modelswith heating function.  
After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not  
be displayed on the LCD, and the unit will automatically select the suitable operation  
mode in accordance with the room temperature to make indoor room comfortable.  
6
SENSOR:  
Press this button to turn on SENSOR function. The unit automatically adjust temperature  
according to the sensed temperature.Press this button again to cancel SENSORfunction.  
7
CLOCK :  
Pressing CLOCK button,  
blinks. Within 5 seconds, pressing + or - button adjusts the  
present time. Holding down either button above 2 seconds increases or decreases the  
time by 1 minute every 0.5 second and then by 10 minutes every 0.5 second. During  
blinking after setting, press CLOCK button again to confirm the setting, and then  
will be constantly displayed.  
7
Remote Control Instructions  
8
TIMER ON :  
Press this button to initiate the auto-ON timer. To cancel the auto-timer program, simply  
press this button again.  
After pressing thisbutton,  
disappears and "ON "blinks. 00:00 is displayed for ON time  
setting. Within 5 seconds, press + or - button to adjust the time value. Every press of either  
button changes the time setting by 1 minute. Holding down either button rapidly changes the  
time setting by 1 minute and then 10 minutes. Within 5 seconds after setting, press TIMER  
ON button to confirm.  
9
AIR SWEEP:  
Press this button to set up & down swing angle, which circularly changes as below:  
OFF  
This remote controller is universal. If any command  
the unit will carry out the command as  
,
or  
is sent out,  
indicates the guide louver swings as:  
10  
11  
EXTEND:  
PressingEXTENDbutton in COOL or DRY mode, the icon  
is displayed and the indoor  
fan will continue operation for 10 min utes in order to dry the indoor unit even though you  
have turned off the unit.  
After energization,EXTEND OFF is defaulted. EXTEND is not available in AUTO,FAN or  
HEAT mode.  
TEMP:  
By pressing this button you can display the indoor setting temperature or indoor ambient  
temperature.When the indoor unit is first powered on it will display the setting temperature,  
if the temperature's display status is changed from other status to" ",displays the  
ambient temperature, 5s later or within 5s, it receives other remote control signal that will  
return to display the setting temperature. if the users haven't set up the temperature  
displaying status,that will display the setting temperature.(This function is not applicable  
for some models).  
12  
13  
TIMER OFF :  
Press this button to initiate the auto-off timer. To cancel the auto-timer program, simply  
press the button again.TIMER OFF setting is the same as TIMER ON.  
TURBO:  
Press this button to activate / deactivate the Turbo function which enables the unit to  
reach the preset temperature in the shortest time. In COOL mode, the unit will blow strong  
cooling air at super high fan speed. In HEAT mode, the unit will blow strong heating air  
at super high fan speed. (This function is not applicable for some models).  
8
Remote Control Instructions  
14  
SLEEP:  
Press this button to go into the SLEEP operation mode. Press it again to cancel this  
function. This function is available in COOL or DRY mode to maintain the most  
comfortable temperature for you.  
15  
LIGHT:  
Press LIGHT button to turn on the display's light and press this button again to turn off  
the display's light. If the light is turned on,  
is displayed. If the light is tunrned off,  
disappears.  
16  
Combination of "+" and "-" buttons: About lock  
Press "+ " and "-" buttons simultaneously  
to lock or unlock the keypad. If the remote  
controller is locked,  
three times.  
is  
pressing any button,  
blinks  
displayed. In this case,  
17  
Combination of "MODE" and "-" buttons:Allows you to toggle between Fahrenheit and Celsius.  
,press "MODE"  
When the unit is OFF  
and "-"buttons simultaneously toswitch between and  
.
Replacement of Batteries  
1.Remove the battery cover plate from the rear of the remote controller.  
(As shown in the figure)  
2.Take out the old batteries.  
3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity.  
4. Reinstall the battery cover plate.  
Notes:  
When replacing the batteries, do not use old or different types of batteries,  
otherwise, it may cause malfunction.  
If the remote controller will not be used for a long time, please  
remove batteries to prevent batteries from leaking.  
The operation should be performed in its receiving range.  
It should be kept 3 feet away from the TV set or stereo sound sets.  
If the remote controller does not operate normally, please take the  
batteries out and reinsert them after 30 seconds. If it still can't operate properly,  
replace the batteries.  
Sketch map for  
replacing batteries  
9
Front Panel Illumination On/Off  
Display indicator light control of indoor unit  
Display indicator light on: To turn 'On' the light function,the mark will  
display on the remote controller screen by  
pressing this button. In which case,the diss-  
player indicator light will be on if the AC receives  
this signal.  
disappear  
Display indicator light off: To turn 'Off'the light function,the will  
on the remote controller screen by pressing this  
button. In which case, the display indicator light will  
be off if the AC receives this signal.  
Emergency operation  
If the wireless remote control is lost  
or broken, please use the manual switch  
button. At this time, the unit will run in the  
Auto mode, but the temperature and fan  
speed cannot be changed. The operation  
is shown below:  
Manual switch  
Open panel and the manual switch is on  
Fig.3  
the display box.  
Turn on the unit:Press manual button and unit  
will run in  
Auto mode immediately. The  
microcomputer will adjust to the indoor  
temperature to select (Cooling or Fan)  
and obtain a comfortable setting.  
Turn off the unit:  
Press manual switch to turn off unit.  
10  
Routine Maintenance  
Caution  
Turn power off and pull out the power plug before cleaning air conditioner, or it may cause electric  
shock.  
Never sprinkle water on the indoor unit and the outdoor unit for cleaning because it can cause an  
electric shock.  
Volatile liquid (e.g. thinner or gasoline) will damage the air conditioner. (So wipe the units with a  
dry soft cloth, or a cloth slightly moistened with water or cleanser.)  
Clean the front panel  
When cleaning the front panel, please dip the cloth into the water temperature of 45 below, then to dry  
the cloth and wipe the dirty part.  
Note: Please do not to immerse the front panel in water, due to there are microcomputer components and  
circuit diagrams on the front panel.  
Clean the air filter (Recommended once every three months)  
NOTE:If there is an excessive amount of dust around the air conditioner, the air filter should  
be cleaned more frequently. Once filters are removed do not touch fins, edges may be  
sharp.  
to moderate personal injury.  
Failure to do so can result in minor  
Take down the air filter  
At the slot of surface panel to open an angle, pull the air filter  
downward and take it out, please see the Fig. 4(a, b).  
(a)  
(b)  
Clean the air filter  
Fig.4  
To clean the dust adhering to the filters, you can either  
use a vacuum cleaner, or wash them with warm water  
the water with the neutral detergent should below 45  
degree) ,and dry it in the shade.  
NOTE: Never use water above 45  
to clean, or it can  
cause deformation or discoloration.  
Insert the air filter  
Reinsert the filters along the direction of arrowhead, and  
then to cover the cover and clasp it.  
11  
Cause  
Turn unit on.  
Raise/Lower temperature  
setting.  
Unit will resume normal  
operation once power  
has been restored.  
Clean air filter.  
Clean air conditioner.  
Please contact an  
Authorized Friedrich  
Service Agency  
When the compressor  
starts or stops running  
you may here a swoosh  
or gugle, this isn't  
The sound of water flow  
during operation.  
a malfunction.  
-
12  
13  
Cause  
Immediately stop all operations and plug out, contact  
the dealer in following situations occur.  
There is harsh sound during operation.  
The terrible odors emitted during operation.  
Water is leaking in the room.  
Air switch or protection switch often breaks.  
Turn off unit and switch off breaker.  
Accidently splash water or something into unit.  
There is an abnormal heat in power supply cord  
and power plug.  
14  
Service & Assistance  
Troubleshooting" section and still need help, here is  
a list of available services:  
1
2
3
15  
Installation  
Important Notices  
Indoor Unit Placement  
The air inlet and outlet vent should be far from the obstruction, make sure that the air  
1.  
can be blown through the whole room.  
2.Select a position where the condensing water can be easily drained out, and the place  
is easily connected for outdoor unit.  
3.Select a location where the children can not reach.  
4.Can select the place where is strong enough to withstand the full weight and vibration of  
the unit. And will not increase the noise.  
Be sure to leave enough space to allow access for routine maintenance. The height of the  
5.  
installed location should be 8 ft or more from the floor.  
3 ft  
Select a place about  
or more away from TVset or any other electric appliances.  
6.  
7.  
Select a place where the filter can be easily taken out.  
8.Make sure that the indoor unit installation should accord with installation dimension  
diagram requirements.  
9.Do not use the unit in the immediate surroundings of a laundry a bath a shower or a  
swimming pool.  
Outdoor Unit Placement  
.
Select a location from which noise and outflow air emitted by unit will not inconvenience  
neighbors, animals, plants.  
1
.
Select a location where there should be sufficient ventilation.  
2
3
4
.
.
Select a location where there should be no obstructions cover the inlet and outlet vent.  
The location should be able to withstand the full weight and vibration of the outdoor unit  
and permit safe installation.  
.
.
Select a dry place, but do not expose under the direct sunlight or strong wind.  
Make sure that the outdoor unit installation dimension are in accordance with installation  
dimension diagram, convenient for maintenance, repair.  
5
6
The height difference of connecting the tubing within  
tubing within 33 ft.  
, the length of connecting the  
16 ft  
7.  
8.  
9.  
Select a place where it is out of reach for the children.  
Select a place where will not block the passage and do not influence the city appearance.  
16  
Installation  
Safety Requirements For Electric Appliances  
1. The power supply should be used the rated voltage and AC exclusive circuit,  
the power cable diameter should be satisfied.  
2. Don't damage power cord.  
3. It should be reliably earthed, and it should be connected to the special earth device,  
the installation work should be operated by the professional.  
The air switch must have the functions of magnetic tripping and heat tripping, in order  
to protect the short circuit and overloading.  
4. The min. distance from the unit and combustive surface is 5 feet.  
5. The appliance shall be installed in accordance with national wiring regulations.  
9 feet  
6. An all-pole disconnection switch having a contact separation of at least  
should be connected in fixed wiring.  
in all poles  
Note:  
Make sure that the Live wire or Zero line as well as the earth wire in the family power  
socket can not be wrong connected, there should be reliable and no short circuit in the  
diagram.  
wrong connection may cause fire.  
Grounding requirements  
1. Air conditioner needs to be properly grounded.  
2.  
The yellow-green two-color wire in air conditioner is the grounding  
wire and cannot be used for any other purpose. Do not cut.  
17  
Typical Unit Dimensions  
Installation dimension diagram  
Space to the ceiling  
6 in  
Above  
Space to the wall  
6 in Above  
6 in Above  
Space to the wall  
10 ft  
Above  
8ft  
Above  
Air outlet side  
Space to the floor  
The dimensions of the space necessary for correct  
installation of the appliance including the minimum  
permissible distances to adjacent structures  
Space to the obstruction  
Air inlet side  
12 in  
Space to the wall  
Space to the wall  
12 in Above  
Air outlet side  
286  
540  
18  
Install indoor unit  
Install the rear panel  
1.Always mount the rear panel horizontally. Due to the water tray of indoor unit has been adopted the  
both-way drainage design, the outlet of water tray should be adjusted slightly down when installing, that is  
taking the outlet of the water tray as the center of a circle, the included angle between the evaporator and  
level should be 0 or more, that is good for condensing water drainage.  
Wall  
Wall  
2.Fix the rear panel on the wall with screws.  
(Where is pre-covered with plastic granula)  
Mark on the middle of it  
Gradienter  
Space  
to the  
wall  
Space  
to the  
wall  
3.Be sure that the rear panel has been fixed  
firmly enough to withstand the weight of an  
adult of 60kg, further more, the weight should  
be evenly shared by each screw.  
6 in  
6 in  
above  
above  
Right  
Left  
φ
21/2 in  
φ
21/2in  
Fig.5  
(Rear piping hole)  
(Rear piping hole)  
Install the piping hole  
Indoor  
Wall pipe  
Outdoor  
1.Make the piping hole (Ф  
) in the wall at a slight downward  
21/2  
Seal pad  
slant to the outdoor side.  
2.Insert the piping-hole sleeve into the hole to prevent the connection piping  
and wiring from being damaged when passing through the hole.  
Ø55  
Install the water drainage pipe  
1.For well draining, the drain hose should be placed at a downward slant.  
2.Do not wrench or bend the drain hose or flood its end by water.  
Wrenched  
Bent  
3.When the long drainage hose passing through indoor,  
should wrap the insulation materials.  
Flooded  
Connect indoor and outdoor electric wires  
1.Open the surface panel.  
2.Remove the wiring cover Fig 6.  
3.Route the power connection cord and signal control wire (for cooling and heating unit only) from the  
back of the indoor unit and pull it toward the front through the wiring hole for connection.  
4.Reassemble the clampand wiring cover.  
5.Recover the surface panel.  
N(1) 2  
3
BU BK BN YEGN  
Fig.6  
19  
Install indoor unit  
NOTE:  
When connecting the electric wire if the wire length is not enough, please contact with  
the authorized service shop to buy a exclusive electric wire that is long enough and the  
joint on the wire are not allowed.  
The electric wiring must be correctly connected, wrong connection may cause spare parts  
malfunction.  
Tighten the terminal screw in order to prevent loose.  
After tighten the screw, slight pull the wire and confirm whether is it firm or not.  
If the earth wire is wrong connection, that may cause electric shock.  
The cover plate must be fixed, and tighten the connection wire, if it is poor installed, that  
the dust, moisture may enter in or the connection terminal will be affected by outside force,  
and will cause fire or electric shock.  
Install the indoor unit  
External connection  
electric wire  
Gas side pipe  
The piping can be lead out from right, right rear, left  
left rear.  
Liquid side piping  
When routing the piping and wiring from the left  
or right side of indoor unit, cut off the tailings  
from the chassis in necessary(Show in Fig.7)  
1.  
Tailing 2  
Tailing 1  
Gas side piping  
insulation  
Liquid side  
Piping insulation  
Finally wrap it  
with tape  
Fig.7  
Water drainage pipe  
Cut off the tailings 1 when routing the wiring only;  
Cut off the tailings 1 and tailings 2 when routing  
both the wiring and piping.  
Left  
Left rear  
2.Take out the piping from body case, wrap the piping  
electric wire, water pipe with tape and pull them  
through the piping hole (As show in Fig.8)  
右后  
Right  
Fig.8  
Right rear  
Fixing hook  
3.  
Hange the mounting slots of the indoor unit on the  
upper tabs of the rear panel and check if it is firm  
enough.(As show in Fig.9)  
Mounting  
baord  
Mounting  
plate  
8 ft  
4.The height of the installed location should be  
or more from the floor.  
Fig.9  
5.The water drainage pipe can also be installed on the left of  
the indoor-uint.  
Install the connection pipe  
Align the center of the piping flare with the relevant valve.  
1.  
Screw in the flare nut by hand and then tighten the  
2.  
nut with spanner and torque wrench refer to the  
following:  
Indoor unit piping  
Taper nut  
Piping  
(lb . ft)  
Hex nut diameter  
Ф6  
Tightening torque  
11~14.7  
22.8~25.8  
36.9~40.6  
44.3~47.9  
51.6~55.3  
Ф 9.52  
Ф 12  
Spanner  
Torque  
wrench  
Ф 16  
Ф 19  
Note: First connect pipe to indoor unit, then to outdoor unit. Pay  
attention not to bending  
piping as this may cause damage. Do not overtighten joint nut as this may cause  
leakage.  
20  
Install outdoor unit  
Electric wiring  
Disassemble the cable cross plate sub-assy on the outdoor unit  
right side plate.  
1.  
2.Take off wire clamp. Connect and fix power connect  
Cable Cross Plate sub-assy  
cord (for cooling and heating unit,connect and fix power  
connect cord and signal control wire)to terminal of line  
bank. Wiring should fit that of indoor unit.  
For 115V Uints  
N
N(1) 2  
3
L
Fix the power connection cable with wire clamp,  
3.  
BU BK BN  
BN BU YEGN  
(for cooling and heating unit, use the wire clamp  
to fix the power connection cable and the signal  
control wire), then connect the corresponding  
connector.  
L
N
Power  
For 208~230V Uints  
N(1) 2  
3
L1 L2  
Ensure wire has been fixed well.  
4.  
5.  
BU BK BN  
BN BU YEGN  
Install the cable cross plate sub-assy.  
L1  
L2  
Power  
NOTE:  
Wrong wiring may cause spare parts malfunction.  
After the cable fixed, make sure there should be a free space between the connection  
and connection and fixing place on the lead wire.  
Air purging and leakage test  
1. Connect charging hose of manifold valve to charge end of low pressure  
valve (both high/low pressure valves must be tightly shut).  
2. Connect joint of charging hose to vacuum pump.  
Liquid pipe  
3. Fully open handle handle of Lo manifold valve.  
4. Open the vacuum pump to evacuate. At the beginning, slightly  
Vacuum  
gauge  
Gas pipe  
Valve  
cap  
loosen joint nut of low pressure valve to check if there  
is air coming inside. (If noise of vacuum pump has  
been changed, the reading of multimeter is 0) Then  
tighten the nut.  
Vacuum pump  
5. Keep evacuating for more than 15mins and make  
sure the reading of multi-meter is  
5pa  
-1.0 10  
Fig. 10  
(-76cmHg).  
6. Fully open high/low pressure valves.  
7. Remove charging hose from charging end of low pressure valve.  
8. Tighten bonnet of low-pressure valve. (As shown in Fig.10)  
Condensate drainage of outdoor unit (no for cooling only)  
The condensate and defrosting water formd during heating  
in the outdoor unit can be properly discharged by drainage  
pipe .  
Installation method:set the drain connection in 25 hole of the  
Ø
chassis has been installed and then connect drainage pipe  
with drain nozzle,so that condensate and defrosting waer can  
be properly discharged  
Chassis  
Drain  
connection  
21  
Checklist  
Check after installation  
Items to be checked  
Possible malfunction  
Has it been fixed firmly?  
The unit may drop, shake or emit noise.  
It may cause insufficient cooling(heating)  
capacity  
Have you done the refrigerant leakage test?  
Is heat insulation sufficient?  
It may cause condensation and dripping.  
Is water drainage well?  
It may cause condensation and dripping.  
Is the voltage in accordance with the rated  
voltage marked on the nameplate?  
It may cause electric malfunction  
or damage the part.  
Is the electric wiring and piping  
connection installed correctly and securely?  
It may cause electric malfunction  
or damage the part.  
Has the unit been connected to a secure  
earth connection?  
It may cause electrical leakage.  
It may cause insufficient cooling(heating)  
capacity.  
Is the inlet and outlet been covered?  
Has the length of connection pipes  
The refrigerant capacity is not accurate.  
and refrigerant capacity been recorded?  
Test Operation  
Before test operation  
1.  
(1)Do not switch on power before installationis completely finished.  
(2)Electric wiring must be connected correctly and securely.  
(3)Cut-off valves of the connection pipes should be opened.  
All the impurities such as scraps and thrums must be cleared from the unit.  
(4)  
2.Test operation method  
(1)Switch on power, press "  
START / STOP" button on the wireless remote control  
to start  
the operation.  
Press MODE button, to select the COOL, or/and  
the operation is normal or not.  
(2)  
FAN to check whether  
22  
Friedrich Air Conditioning Co.  
10001 Reunion Place, Suite 500 • San Antonio, Texas 78216  
1.800.541.6645  
66129907272  

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