Friedrich ZQ05C10 Air Conditioner Instruction Manual

: August 10, 2024
: FRIEDRICH

Table of Contents

Friedrich ZQ05C10 Air Conditioner
Product Information
Product Usage Instructions
PREFACE
DISASSEMBLY INSTRUCTIONS
INSTALLATION
HOW TO INSTALL
TROUBLESHOOTING GUIDE
CIRCUIT DIAGRAM
EXPLODED VIEW
SERVICE PARTS LIST
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Friedrich ZQ05C10 Air Conditioner

Product Information

Specifications

Brand: FRIEDRICH
Model: ZQ05C10
Type: Air Conditioner
Replacement Parts: Genuine parts available
Models: 1575 different models available

Product Usage Instructions

Installation

Choose a suitable location for the air conditioner near a power outlet.
Ensure proper support for the unit to prevent vibrations and noise.
Securely install any mounting brackets or accessories included.
Connect the air conditioner to the power supply following the manufacturer’s instructions.

Operation

Turn on the power using the control panel or remote control.
Select the desired temperature and fan speed settings.
Adjust the louvers to direct airflow as needed.
Monitor the filter and clean or replace it regularly for optimal performance.

Maintenance

Regularly clean the exterior of the air conditioner with a damp cloth.
Check for any leaks or unusual noises during operation.
Schedule professional maintenance at least once a year for thorough cleaning and inspection.

FAQ

Q: How often should I clean the air filter?
A: It is recommended to clean the air filter every 2 weeks for optimal performance. Replace if necessary.
Q: Can I use the air conditioner without the remote control?
A: Yes, you can operate the air conditioner using the control panel on the unit itself if the remote control is unavailable.
Q: What should I do if the air conditioner is not cooling effectively?
A: Check if the filter is clean, ensure all windows and doors are closed, and verify that the unit is set to the correct temperature and mode.

PREFACE

This service manual provides various service information, including the mechanical and electrical parts, etc. This room air conditioner was manufactured and assembled under a strict quality control system.
The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.

FEATURES

DESIGNED FOR COOLING ONLY
POWERFUL AND INCREDIBLE COOLING
TOP-DOWN CHASSIS FOR THE SIMPLE INSTALLATION AND SERVICE
BUILT-IN ADJUSTABLE THERMOSTAT
WASHABLE ONE-TOUCH FILTER
COMPACT SIZE

SPECIFICATIONS

ITEMS M	ZQ05B10 ZQ05C10	ZQ07B10
COOLING CAPACITY (BTU/h)	5,100	6,500
POWER SUPPLY (Phase, V, Hz)	10, 115V, 60HZ
INPUT (W)	520	670
OPERATING CURRENT (AMP.)	4.8	6.2
REFRIGERANT CONTROL	CAPILLARY TUBE
REFRIGERANT CHARGE (R-22)	325g (7.9 oz) I 205g (7.05oz)	335g (11.8 oz)
INSIDE FAN	TURBOFAN
OUTSIDE FAN	PROPELLER FAN WITH SLINGER RING
AIR DISCHARGE	2-WAY (RIGHT AND LEFT)
CHASSIS	TOP-DOWN
PROTECTOR	• OVERLOAD PROTECTOR FOR COMPRESSOR

• INTERNAL PROTECTOR FOR FAN MOTOR

TEMPERATURE CONTROL| THERMISTOR
FAN MOTOR| 6 POLES, 16W| 6 POLES, 27W

LOCATIONS OF CONTROLS

CAUTION: After switching the air conditioner from Cool to Off or Fan, wait at least 3 minutes before switching it back to Cool.

SAFETY PRECAUTIONS

When servicing, set the ROTARY SWITCH to Off and unplug the power cord.
Observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.
After servicing, make an insulation resistance test to prevent the customer from being exposed to shock hazards.

INSULATION RESISTANCE TEST

Unplug the power cord and connect a jumper between 2 pins (black and white).
The grounding conductor (green or green and yellow) is to be open.
Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment at all position [except Off] of the ROTARY SWITCH.
The value should be over 1 MQ.

DISASSEMBLY INSTRUCTIONS

MECHANICAL PARTS

FRONT GRILLE
Disconnect the unit from source of power.
Remove the two knobs by pulling them off. Using a screwdriver, remove the screw that secures the front grille to control board. (See Figure 1)
Push the front grille up from the bottom. Pull the top of the front grille away from the cabinet as the top tabs lift out of their slots. (See Figure 2)
Replace the grille by placing the tabs in the slots and push the grille until it snaps into place.
CABINET
Disconnect the unit from the power source.
Remove the front grille. (Refer to section 2.1.1)
Remove 9 screws that secure the cabinet to the base pan and condenser. (See Figure 3)
Lift the cabinet from the unit.
Re-install by referring to the procedures above.
CONTROL BOARD
Disconnect the unit from the power source.
Remove the front grille. (Refer to Section 2.1.1)
Remove the cabinet. (Refer to Section 2.1.2)
Remove 2 screws that secure the control board to base pan and air guide. (See Figure 4)
Pull the control board toward yourself.
NOTE: Controls, wires, and capacitor are now accessible for servicing. Discharge the capacitor before servicing. See step 2.3.3 on page 8 for procedures.
Disconnect one housing terminal and 3 wires for the fan motor and compressor. (See Figure 5)
Re-install components by referring to procedures above. (Refer to wiring diagram on page 23 in this manual or inside control board.)

AIR HANDLING PARTS

AIR GUIDE UPPER
Disconnect the unit from the power source.
Remove the front grille. (Refer to Section 2.1.1)
Remove the cabinet. (Refer to Section 2.1.2)
Remove the control board. (Refer to Section 2.1.3)
Remove 2 screws that secure the air guide upper to air guide lower. (See Figure 6)
Lift air guide upper upward.
Re-install by referring to the procedures above.
ORIFICE, TURBO FAN AND FAN
Disconnect the unit from the power source.
Remove the front grille. (Refer to Section 2.1.1)
Remove the cabinet. (Refer to Section 2.1.2)
Remove the control board. (Refer to Section 2.1.3)
Remove the air guide upper. (Refer to Section 2.2.1)
Remove 2 screws that secure the base pan to condenser. (See Figure 7)
Remove screw that secures the shroud to channel of condenser.
Press the snap area of shroud with your thumbs. This allows you to remove it from the condenser.
Lift the compressor upward with the evaporator and condenser. (See Figure 7)
Remove the orfice by pushing the snap area of the air guide blower. (See Figure 8)
Remove the clamp springs which are clamped to the boss of fan and turbo fan by hand plier. (See Figure 9)
Pull the fan and turbo fan outward.
Remove the shroud.
Re-install by referring to the procedures above.
MOTOR
Disconnect the unit from the power source.
Remove the front grille. (Refer to Section 2.1.1)
Remove the cabinet. (Refer to Section 2.1.2)
Remove the control board. (Refer to Section 2.1 .3)
Remove the air guide upper. (Refer to Section 2.2.1)
Remove the compressor, turbo fan, fan and shroud. (Refer to Section 2.2.2)
Remove 2 screws that secure the motor to the motor. (See Figure 10)
Remove the motor.
Re-install by referring to the procedures above.
AIR GUIDE
Disconnect the unit from the power source.
Remove the front grille. (Refer to Section 2.1.1)
Remove the cabinet. (Refer to Section 2.1.2)
Remove the control board. (Refer to Section 2.1 .3)
Remove the air guide upper. (Refer to Section 2.2.1)
Remove the compressor, turbo fan, fan and shroud. (Refer to Section 2.2.2)
Remove the motor. (Refer to Section 2.2.3)
Remove 2 screws that secure the air guide to the base pan. (See Figure 11)
Push the air guide backward and lift it upward. (See Figure 11)
Re-install by referring to the procedures above.

ELECTRICAL PARTS

OVERLOAD PROTECTOR
Remove the front grille and cabinet. (Refer to Section 2.1)
Remove the nut which fastens the terminal cover.
Remove the terminal cover.
Remove all the leads from the overload protector.
Remove the overload protector.
Re-install the components by referring to the removal procedure above. (See Figure 12 and 13)
COMPRESSOR
Remove the front grille and cabinet. (Refer to Section 2.1)
Discharge the refrigerant by using a refrigerant recovery system.
Remove the overload protector. (Refer to Section 2.3.1)
After discharging the unit completely, unbrace the suction and discharge pipes at the compressor connections.
Remove 3 nuts that fasten the compressor.
Remove the compressor.
Re-install by referring to the removal procedure above. (See Figure 14)
CAPACITOR
Remove the cabinet. (Refer to Section 2.1.2)
Remove the control board. (Refer to Section 2.1.3)
Discharge the capacitor by placing a 20 Kn resistor across the capacitor terminals.
Remove the screw which fastens the capacitor clamp.
Remove all the leads of capacitor terminals.
Re-install the components by referring to the removal procedure above. (See Figure 15)
THERMOSTAT
Remove the cabinet. (Refer to Section 2.1.2)
Remove the control board. (Refer to Section 2.1 .3)
Remove 2 screws which fasten the thermostat.
Remove all the leads of the thermostat terminals.
Remove the thermostat.
Re-install the components by referring to the removal procedure above. (See Figure 16)
ROTARY SWITCH
Remove the cabinet. (Refer to Section 2.1.2)
Remove the control board. (Refer to Section 2.1 .3)
Remove 2 screws which fasten the rotary switch.
Remove all the leads of the rotary switch terminals.
Remove the rotary switch.
Re-install the components by referring to the removal procedure above. (See Figure 17)
POWER CORD
Disconnect the unit from source of power.
Remove the front grille. (Refer to Section 2.1.1)
Remove the cabinet. (Refer to Section 2.1.2)
Remove a screw that secures control board to base pan. (Refer to Section 2.1.3)
Pulls the control board toward you.
Disconnect the 2 receptacles and remove the grounding screw.
Remove a screw securing the clip with cord to the control board.
Pull the power cord.
Re-install by referring to procedures above.

REFRIGERANT CYCLE

CONDENSER
Remove the cabinet. (Refer to Section 2.1.2)
Discharge the refrigerant by using a refrigerant recovery system.
Remove the air guide. (Refer to Section 2.2.1)
Remove 2 screws which fasten the condenser.
After discharging the refrigerant completely, unbraze the interconnecting tube at the condenser connections.
Remove the condenser.
Re-install by referring to the procedures above.
EVAPORATOR
Remove the cabinet.
Discharge the refrigerant by using a refrigerant recovery system.
Remove the air guide upper. (Refer to Section 2.2.1)
After discharging the refrigerant completely, unbraze the interconnecting tube of the capillary tube.
Remove the capillary tube.
Re-install by referring to the procedures above.

NOTES Replacement of the refrigeration cycle.

When replacing the refrigerating cycle, be sure to discharge the refrigerant by using a refrigerant recovery system.
After discharging the unit completely, remove the desired components, and unbraze the pinch-off tubes.
Solder service valves into the pinch-off tube ports, leaving the valves open.
Solder the pinch-off tubes with service valves.
After completing the above procedures, the valve must be closed and left in place on the system for any subsequent procedures.
Evacuate as follows:
Connect the vacuum pump, as illustrated in figure 21A.
Start the vacuum pump. Slowly open manifold valves A and B with two full turns counterclockwise and leave the valves closed. The vacuum pump is now pulling through valves A and B up to valve C by means of manifold and the entire system.
CAUTION: If high vacuum equipment is used, just crack valves A and B for a few minutes, then open slowly with the two full turns counterclockwise This will keep oil from foaming and being drawn into the vacuum pump.
Operate the vacuum pump for 20 to 30 minutes, until 600 micron vacuum is obtained. Close valves A and B and observe vacuum gauge for a few minutes. A rise in pressure would indicate a possible leak or moisture remaining in the system. With valves A and B closed, stop the vacuum pump.
Remove the hose from the vacuum pump and place it on the charging cylinder. See figure 23B. Open valve C. Discharge the line at the manifold connection.
The system is now ready for final charging.
Recharge as follows:
Refrigeration cycle systems are charged from the high-side. If the total charge cannot be put in the high-side, the balance will be put in the suction line through the access valve which is installed as the system is opened.
Connect the charging cylinder as shown in figure 21 B. With valve C open, discharge the hose at the manifold connection.
Open valve A and allow the proper charge to enter the system. Valve B is still closed.
If more charge is required, the high-side will not take it. Close valve A.
With the unit running, open valve B and add the balance of the charge.

  *  **a.** Do not add the liquid refrigerant to the lowside.
  *  **b.** Watch the low-side gauge, allow pressure to rise to 30 lbs.
  *  **c.** Turn off valve B and allow the pressure to drop.
  *  **d.** Repeat steps b. and c. until the balance of the charge is in the system.
6. When the unit is operating correctly, use the pinch-off tool with the unit still running and clamp on the pinch-off tube. Using a tube cutter, cut the pinch-off tube about 2 inches from the pinch-off tool. Use sil-fos solder and solder the pinch-off tube closed. Turn off the unit, allow setting for a while and then test the leakage of the pinch-off connection.

Equipment needed: Vacuum pump, charging cylinder, manifold gauge, brazing equipment, a pinch-off tool capable of making a vapor-proof seal, leak detector, tubing cutter, hand tools to remove components and service valve.

INSTALLATION

This air conditioner is designed with a button-down chassis so it can be easily installed in a window.

SELECT THE BEST LOCATION

To prevent vibration and noise, make sure the unit is installed securely and firmly.
Install the unit where the sun does not shine directly on the unit.
The outside of the cabinet must extend outward for at least 10″ and there should be no obstacles, such as a fence or wall, within 20″ from the back of the cabinet because it will prevent heat radiation of the condenser. Restriction of outside air will greatly reduce the cooling efficiency of the air conditioner.
CAUTION All side louvers of the cabinet must remain exposed on the outside of the structure.
Install the unit slanted slightly so the back is slightly lower than the front (about ¼”). This will force condensed water to the outside.
Install the unit with the bottom about 30″~60″ above the floor level.

HOW TO INSTALL

WINDOW REQUIREMENTS
NOTE: All supporting parts should be secured to firm wood, masonry, or metal.
This unit is designed for installation in standard double hung windows with actual opening widths of 22″ to 36″. The upper and lower sash must open sufficiently to allow a clear vertical opening of 13″ from the bottom of the sash to the window stool.
If storm window presents interference, fasten a 2″ wide wood strip to the inner window sill across the full width of the sill. The wood strip should be thick enough to raise the height of the window sill so that the unit can be installed without interference by the storm window frame. See Figure. 24. Top of wood strip should be approximately 3/4″ higher than the storm window frame (STORM WINDOW FRAME) or wood strip (OUT DOOR S) to help condensation to drain properly to the outside.
Install a second wood strip (approximately 6″ long by 11/2″ wide and same thickness as first strip) in the center of the outer sill flush against the back off the inner sill. This will raise the L bracket as shown Figure. 24.
If the distance between STORM WINDOW FRAME and WOOD STRIP MOUNTED ON TOP OF INNER SILL is more than 1″, two of wood strip are not necessary.
Installation
BEFORE INSTALLATION
Insert the guide panels into the guides of the air conditioner. Fasten the curtains to the unit with screws (TYPE A) as shown Figure. 25.
Cut the adhesive-backed seal strip (TYPE D) to the window width. Remove the backing from the seal strip and attach the seal strip to the underside of the bottom window. (Figure. 26)
NOW START INSTALLATION
LOCATING UNIT IN WINDOW
Open the window and mark center line on the center of the inner sill, as shown in Figure. 27.
ATTACH L BRACKET
a. Install the L brackets behind the inner window sill, with the short side of bracket as shown.
Use the 2 screws {TYPE A) provided.
b. The bracket helps to hold unit securely in place. Be sure to place bracket edge flush against back of inner sill. See Figure. 27.
CAUTION: During the following step, hold unit firmly until window sash is lowered to top channel behind side panel frames. Personal injury or property damage may result if unit falls from window.
INSTALL THE AIR CONDITIONER IN THE WINDOW

  *  **a.** Carefully lift the air conditioner and slide it into the open window. Make sure the bottom guide of the air conditioner drops into the notches of the L bracket. See Figure. 28.

IMPORTANT: When the air conditioner drops into the L bracket, the air conditioner will be centered in window opening as shown in Figure. 29.

  *  **b.** While steadying the air conditioner, carefully bring the window sash down behind the upper guide of the air conditioner, as shown in Figure. 30.
4.  **SECURE THE GUIDE PANELS**

Extend the guide panels (TYPE F) to fill the window opening using 4 screws (TYPE B) to secure them, as shown in Figure. 31.

5.  **INSTALL THE SASH SEAL AND SASH LOCK**
  *  **a.** Cut the sash seal (TYPE E) to the window width. Stuff the sash seal between the glass and the window to prevent air and insects from getting into the room, as shown in Figure. 31.
  *  **b.** Fasten the L bracket using a (TYPE A) screw, as shown in Figure. 31.
6. Window installation of room air conditioner is now completed. See ELECTRICAL DATA for attaching power cord to electrical outlet.

REMOVAL FROM WINDOW
Turn the air conditioner off, disconnect the power cord, remove the L bracket and the screws installed through the top and bottom of the guide panels, and save for reinstallation later. Close the guide panels. Keeping a firm grip on the air conditioner, raise the sash, and carefully tilt the air conditioner backward, draining any condensate water. Lift the air conditioner from the window and remove the sash seal from between the windows.

ELECTRICAL DATA

USE OF EXTENSION CORDS
Because of potential safety hazards, we strongly discourage the use of an extension cord. However, if you wish to use an extension cord, use a CSA- certified/UL-listed 3-wire (grounding) extension cord, rated 15A, 125V.

TROUBLESHOOTING GUIDE

OUTSIDE DIMENSIONS (unit: mm [in])

PIPING SYSTEM

Figure 32 is a brief description of the important components and their function in what is called the refrigeration system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.

TROUBLESHOOTING GUIDE
In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused by an electrical defect. The other is Ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application.

Unit is running but cooling is ineffective.

ROOM AIR CONDITIONER VOLTAGE LIMITS