Mitsubishi MFZ-KA25VA Installation Manual
Floor type air-conditioner
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Also See for MFZ-KA25VA:
- Operating instructions manual (15 pages) ,
- Installation manual (88 pages)
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Installation Manual
Floor Type Air-Conditioner
MFZ-KA25VA
MFZ-KA35VA
MFZ-KA50VA
[FLARE CONNECTION TYPE]
INSTALLATION MANUAL
• This manual only describes the installation of indoor unit.
When installing the outdoor unit, refer to the installation manual
of outdoor unit.
FOR INSTALLER
HFC
utilized
R410A
CONTENTS
SAFETY ........................................................................................... 2
2. INSTALLATION DIAGRAM & ACCESSORIES ................................ 2
3. SELECTING THE INSTALLATION LOCATION ................................ 3
4. INDOOR UNIT INSTALLATION ....................................................... 4
TEST RUN ....................................................................................... 9
6. FOR MOVEMENT AND MAINTENANCE ...................................... 11
IMPORTANT NOTES
TO COMPLY WITH THE REQUIREMENTS OF AUSTRALIAN
STANDARD AS/NZS 3000 ELECTRICAL INSTALLATIONS (Wiring
Rules), THE ELECTRICAL WIRING REQUIRED BETWEEN THE
INDOOR AND OUTDOOR UNITS MUST BE INSTALLED BY A
LICENCED ELECTRICAL CONTRACTOR.
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Table of Contents
Related Manuals for Mitsubishi MFZ-KA25VA
Summary of Contents for Mitsubishi MFZ-KA25VA
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Page 1: Table Of Contents
CONTENTS Floor Type Air-Conditioner MFZ-KA25VA 1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR MFZ-KA35VA SAFETY ................... 2 2. INSTALLATION DIAGRAM & ACCESSORIES ........ 2 MFZ-KA50VA utilized 3. SELECTING THE INSTALLATION LOCATION ........ 3 R410A [FLARE CONNECTION TYPE] 4. INDOOR UNIT INSTALLATION ............4 5. -
Page 2: The Following Should Always Be Observed For
1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR 2. INSTALLATION DIAGRAM & ACCESSORIES SAFETY • Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY” before install- ing the air conditioner. • Be sure to observe the cautions specified here as they include important items related to safety. Be careful the •... -
Page 3: Selecting The Installation Location
3. SELECTING THE INSTALLATION LOCATION ACCESSORIES PART TO BE PROVIDED AT YOUR SIDE INDOOR UNIT • Where airflow is not blocked. Check the following parts before installation. Optional extension pipe • Where cool air spreads over the entire room. <Indoor unit> Indoor/outdoor unit connecting wire •... -
Page 4: Indoor Unit Installation
4. INDOOR UNIT INSTALLATION INDOOR UNIT INSTALLATION INDOOR UNIT MOUNTING BRACKET INSTALLATION • Install the bracket firmly to the wall structure (stud, etc.). • Hook the top of the indoor unit on the indoor unit mounting bracket 7. • Use a level to install the mounting bracket horizontally. •... - Page 5 INDOOR AND OUTDOOR CONNECTING WIRE CONNECTION AUTO RESTART FUNCTION You can connect indoor/outdoor lead wire without removing the front grille. • These models are equipped with an auto restart function. If you do not want to use this function, please 1 Open the front grille.
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Page 6: Piping Installation
MAKING HOLES IN THE WALL AND FLOOR PIPING INSTALLATION CONNECTING PIPE INSTALLATION MAKING HOLES 1 Make ø65 mm holes (ø75 mm for KA50) that are approximately 5–7 mm deep and angled slightly downward • Install the connecting pipes so that the piping can move slightly to the front, back, left, and right. outward from the room. - Page 7 EMBEDDING THE INDOOR UNIT IN A WALL FOR LEFT OR LEFT-REAR PIPING Bundle the connecting pipes and drain hose together, and then wrap them in felt tape B. • When installing a grating, use a grating with narrow upper and lower horizontal bars so that the airflow from the upper and lower air outlets does not contact the bars.
- Page 8 This can lead to a strange sound (burbling) being produced during strong winds or when a ventilation fan, etc., is used in a residence that is well-sealed. If necessary, contact your nearest Mitsubishi Electric representative for the optional parts to prevent this prob- lem.
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Page 9: Indoor/Outdoor Unit Connection Finishing And Test Run
5. INDOOR/OUTDOOR UNIT CONNECTION FINISHING AND TEST RUN INSTALLATION INFORMATION FOR THE AIR CONDITIONER WITH R410A 3. Putting nut on REFRIGERANT Flare nut • Remove flare nuts attached to indoor and outdoor units, then put them on pipe having completed burr removal. •... -
Page 10: Test Run
PIPE CONNECTION TEST RUN Note: • Before performing the test run, recheck for any wrong wiring. Fasten a flare nut with a torque wrench as specified in the table below. Wrong wiring prevents normal operation or results in blown fuse disabling operation. When fastened too tight, a flare nut may broken after a long period and cause a leakage of refrigerant. -
Page 11: For Movement And Maintenance
6. FOR MOVEMENT AND MAINTENANCE CHECKING AFTER INSTALLATION PUMPING DOWN After finishing the installation, check the following items and mark the next to each item. When relocating or disposing of the air conditioner, pump down the system following the procedure below so Is the specified power supply voltage used? that no refrigerant is released into the atmosphere. - Page 12 HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN SG79Y536H02...