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Refrigerant
R410A, R407C, R22
Compact Wall Mounted Type -
Comfort Model (VRF System)
INSTALLATION INSTRUCTION SHEET
(PART NO. 9377773036)
This model is an appliance not accessible to the general public.
Contents
1. SAFETY PRECAUTIONS ....................................... 2
REFRIGERANT ....................................................... 4
3. ACCESSORIES ...................................................... 5
4. INSTALLATION WORK ........................................... 6
4-1.
SELECTING AN INSTALLATION LOCATION .......... 6
4-2.
INSTALLATION DIMENSIONS ................................. 7
4-3.
INSTALLING THE UNIT ........................................... 8
4-4.
PIPE INSTALLATION ............................................. 11
4-5.
FIELD SETTING .................................................... 12
4-6.
ELECTRICAL WIRING ........................................... 16
4-7.
FINISHING ............................................................. 19
4-8.
INFRARED ADDRESS SETTING .......................... 20
5. TEST OPERATION ............................................... 23
6. CHECK LIST ......................................................... 23
7. ERROR CODES .................................................... 24
En-1
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Table of Contents
Summary of Contents for OVK R22
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Page 1: Table Of Contents
Refrigerant R410A, R407C, R22 Compact Wall Mounted Type - Comfort Model (VRF System) INSTALLATION INSTRUCTION SHEET (PART NO. 9377773036) This model is an appliance not accessible to the general public. Contents 1. SAFETY PRECAUTIONS ........2 2. PRECAUTIONS FOR USING THE ALTERNATIVE REFRIGERANT ............ -
Page 2: Safety Precautions
• To install a unit that uses the R410A refrigerant, use dedicated tools and piping materials that have been manufactured specifically for R410A use. Because the pressure of the R410A refrigerant is approximately 1.6 times higher than the R22, failure to use dedicated piping material or improper installation can cause rupture or injury. - Page 3 This mark indicates procedures which, if improperly performed, might possibly result in personal harm CAUTION! to the user, or damage to property. • Do not install the unit in the following areas: • Area with high salt content, such as at the seaside. It will deteriorate metal parts, causing the parts to fall or the unit to leak water.
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Page 4: Precautions For Using The Alternative Refrigerant
Pay careful attention to the following points : • Since the working pressure is 1.6 times higher than that of R22 models, some of the piping and installation and service tools are special. (See the table in the SPECIAL TOOLS FOR R410A section.) Especially, when replacing a conventional refrigerant (other than R410A) model with a new refrigerant R410A model, always replace the conventional piping and flare nuts with the R410A piping and flare nuts. -
Page 5: Accessories
3. ACCESSORIES Do not discard any accessories needed for installation until the installation work has been completed. Name and Shape Q’ty Application Name and Shape Q’ty Application Wall hook bracket For indoor unit Wire assebly For wired remote control installation installation Binder For remote control cord... -
Page 6: Installation Work
4. INSTALLATION WORK 4-1. SELECTING AN INSTALLATION LOCATION WARNING Install at a place that can withstand the weight of the indoor unit and install positively so that the unit will not topple or fall. CAUTION • Do not install where there is the danger of combustible gas leakage. •... -
Page 7: Installation Dimensions
4-2. INSTALLATION DIMENSIONS Provide a service space for inspection purposes. Do not place any wiring or illumination in the service space, as they will impede service. Fig. 4.1 Installation Dimensions Wall hook bracket 50 mm or over 60 mm or over 90 mm or over 1,500 mm or over... -
Page 8: Installing The Unit
4-3. INSTALLING THE UNIT 1. DETERMINING THE PIPING DIRECTION The piping can be connected in the five directions indicated by 1, 2, 3, 4, and 5 in (Fig. 4.2). When the piping is connected in direction 2 or 5, cut along the piping groove in the side of the front cover with a hacksaw. When connecting the piping in direction 3, cut a notch in the thin wall at the front bottom of the front cover. - Page 9 4. FORMING THE DRAIN HOSE AND PIPE CAUTION • In order to align the drain hose and drain cap, be sure to insert securely and vertically. Incline insertion will cause water leakage. • When inserting, be sure not to attach any material besides water. If any other material is attached, it will cause deterioration and water leakage.
- Page 10 5. Installing the indoor unit (1) After passing the indoor piping and drain hose through the wall hole, hang the indoor unit on the hooks at the top and bottom of the wall hook bracket. (Fig. 4.10) (2) Remove the intake grille. 1 Open the intake grille.
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Page 11: Pipe Installation
Flare nut Torque wrench Indoor unit pipe Connection pipe (body side) In order to use the R407C or R22 refrigerant, the pipe diameter will not match on the AS E07/09L. Therefore, it is necessary to install an adapter (standard part). En-11... -
Page 12: Field Setting
4-5. FIELD SETTING 1. SETTING THE ADDRESS Manual address setting method CAUTION • When setting the DIP switch, use an insulated screw driver. • When handling the PCB, static electricity charged in the body may cause malfunction of the PCB. Follow the cautions below: •... - Page 13 Table 4.3 Switch Setting Switch Setting INDOOR UNIT INDOOR UNIT Dip Switch Dip Switch Dip Switch Rotary Switch Dip Switch Dip Switch Dip Switch Rotary Switch Indoor unit Indoor unit SW4-1 SW4-2 SW4-1 SW4-2 address adress Refrigerant Refrigerant circuit SW5-1 SW5-2 SW5-3 circuit...
- Page 14 2. CUSTOM CODE SETTING Fig. 4.23 Code change Confusion Selecting the custom code prevents the indoor unit mix-up. Indoor (Fig. 4.23) unit (Up to 4 codes can be set.) Remote CUSTOM CODE SETTING FOR INDOOR UNIT controller Set the DIP SW 3-1, 3-2, referring to the Table 4.4. Fig.
- Page 15 4. CONNECTING THE WIRED REMOTE CONTROLLER (IF NECESSARY) In order to connect the wired/simple remote control to the external switch controller, the wire assembly (standard parts) which is attached to the indoor unit needs be connected to the end of remote controller cord. (1) Use a tool to cut off the terminal on the end of the remote controller cord, and then remove the insulation from the cut end of the cord as shown in Fig.
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Page 16: Electrical Wiring
4-6. ELECTRICAL WIRING WARNING • Perform wiring work in accordance with standards so that the air conditioner can be operated safely and positively. • Connect the connection cable firmly to the terminal board. Imperfect installation may cause a fire. • The terminal board numbers should be the same among the indoor units. Also, match the terminal board numbers of the indoor unit with those of the outdoor unit. - Page 17 2. WIRING METHOD (EXAMPLE) Fig. 4.28 3. UNIT WIRING • Before attaching the wire to terminal block. Fig. 4.29 Shielded wire (no film) Earth wire Transmission cord Power supply cord Fig. 4.30 • When the two wires are attached. Fig. 4.31 Screw with Round special washer...
- Page 18 (1) Connect the connection cable. (2) Install the cord clamp. Fig. 4.32 NO GOOD Code Screw hole Code Screw hole Do not route the cords over the screw hole. Power supply cord EV kit cord Transmission cord EV kit cord After connecting the EV kit cord, slide the tube (included with the EV kit) over the connector to protect it.
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Page 19: Finishing
4-7. FINISHING • After completing the refrigerant leak check (for details, refer to the Installation instruction Sheet of the outdoor unit), install the insulation. (1) Insulate between pipes. • For rear, right, and bottom piping, overlap the connection pipe heat insulation and indoor unit pipe heat insulation and bind them with vinyl tape so that there is no gap. -
Page 20: Infrared Address Setting
4-8. INFRARED ADDRESS SETTING • This setting cannot be performed in an environment in which the wireless remote controller cannot be used (the wireless remote controller is an optional parts). • This setting is unnecessary if the indoor unit address and refrigerant circuit address have been set up in section 4-5. •... - Page 21 1 INDOOR UNIT ADDRESS SETTING (1) Press the “MASTER CONTROL ” button to access (2) Make sure the bottom number address code is ‘01’. If the num- the address setting mode. ber is other than ‘01’, press the “+” or the “-” buttons to alter. SET “01”...
- Page 22 2 REFRIGERANT CIRCUIT ADDRESS SETTING (1) Press the “FAN CONTROL ” button to select the address (2) Press the “+” or “-” button to adjust address code 02. code. SET “02” Address code (3) Press the “FAN CONTROL ” button to access the address (4) Press the “+”...
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Page 23: Test Operation
5. TEST OPERATION 1. TEST OPERATION USING PCB (OUTDOOR UNIT) • Refer to the Installation Instruction Sheet for the outdoor unit if the PCB for the outdoor unit is to be used for the test operation. 2. TEST OPERATION USING REMOTE CONTROLLER •... -
Page 24: Error Codes
7. ERROR CODES If you use a wired type remote control, error codes will appear on the remote control display. If you use a wireless remote control, the lamp on the photodetector unit will output error codes by way of blinking patterns. See the lamp blinking patterns and error codes in the table below.
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