TD FUSE/BREAKER A 20 30 20 REFRIGERATION SYSTEM | REFRIGERANT R410A R410A R410A COMPRESSOR TYPE Inverter (Twin Rotary) Inverter (Twin Rotary) Inverter (Twin Rotary) CONNECTIONS Flare Flare Flare LIQUID LINE O.D. in 3/8" 3/8" 3/8" SUCTION LINE O.D. in 5/8" 5/8" 5/8" FACTORY PRECHARGE ft 50' 50' 50' MAX. LINE LENGTH ft 165' 165' 165' MAX. HEIGHT DIFFERENCE ft 66' 98' 66' DIMENSIONS & WEIGHT INDOOR UNIT W X H X D in 39" x 7 7/8" x 25 3/4" 65 3/8" x 9 1/2" x 27 1/2" 32 5/8

1 Specifi cations ............................................................................................................................................... 2 Important Safety Information ........................................................................................................................ 2 Package Contents/Tools Required ............................................................................................................... 2 To Remove Existing Thermostat ........

1 Specifications ........................................................................................................................................... 2 Important Safety Information .................................................................................................................. 2 Package Contents/Tools Required ............................................................................................................. 3 General Description ...............................

There may be more than one power disconnect. Electrical shock can cause personal injury or death. Improper wiring or installation may damage thermostat. Wiring must conform to local and national electrical codes. INSTALLATION CONSIDERATIONS The thermostat is a wall mounted, low-voltage thermostat, which maintains room temperature by controlling the operation of a heating and air conditioning system. Batteries are not required; temperature and mode settings are preserved with the power off. I. TH

. . . . . . . . . . . . . . . . . . . 1 OUTLINE AND DIMENSIONS . . . . . . . . . . . 3 REFRIGERANT SYSTEM DIAGRAM . . . . . 5 ERROR CONTENTS . . . . . . . . . . . . . . . . . . 15 CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . 6 INDOOR PCB CIRCUIT DIAGRAM . . . . . . 9 OUTDOOR PCB CIRCUIT DIAGRAM . . . . 12 DISASSEMBLY ILLUSTRATION . . . . . . . . . 17 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . 23 Models Indoor unit Outdoor unit MW09Y3FM MW12Y3FM MW18Y3FM MR36TQY3F WALL

11 Standard Grille Installation............................................................................................................................................................................... 12 Electrical Rating Tables ................................................................................................................................................................................... 13 Power Cord Information ...........................................................

filters may shrink and the plastic materials may be damaged. 2. CLEANING INDOOR UNIT(S) & REMOTE CONTROL(S) • Do not touch the evaporator coil when removing and replacing the air filters. Injury may occur. Use a dry cloth for cleaning the indoor unit(s) and remote • Never operate the unit without the air filters. control(s). BEFORE THE SEASON 1. CLEANING AIR FILTERS (ONCE EVERY TWO WEEKS) Clean the air filters at least once every two weeks to save elec-• Check that the air inlet and outlet of th

(°F) Outdoor Intake Temp. (°F) 5 6.5 Outdoor Fan Speed LowHigh Room Temp. (°F) Outdoor Fan Speed Low High Room Temp. (°F) 86 6.0 4.5 80 75 5.5 4 5.0 3.5 4.5 59 68 77 86 95 104 59 68 77 86 95 104 Outdoor Intake Temp. (°F) Outdoor Intake Temp. (°F) 99 99 HCW18000 HCW24000 Outdoor Fan Speed Low High Room Temp. (°F) Outdoor Fan Speed Low High Room Temp. (°F) HHW18000 HHW24000 85 71 57 86 85 80 75 71 80 75 57 43 43 59 68 77 86 95 104 59 68 77 86 95 104 Outdoor Intake Temp. (°F) Outdoor Intake Temp. (

Keep these pipes unrolled (See Fig. 9 and Fig. 10) 2. For left side piping, cut the indoor unit base(s) with a hacksaw and deburr with a file. Flare Coupling installation Band Tape after finishing leak test Discharge pipe Suction pipe Wall hole Fig. 10 Interconnection cable 3. Connect the indoor pipes and check for gas leaks. (See Fig. 10) After the leak test, wrap the flared joints with insulation and fix it with bands. 4. Remove the spacer from installation plate. Suction pipe Discharge pipe I

Up/Down Air Flow Direction Control OPENCLOSED Operation starts by manipulating the Remote Control. Please check and identify the name and location of part. ACL Button (Front Cover) Cover1 2 “AM 12:00” Blinking INSTALLING BATTERIES 3 1. To lift the cover press in and up on the lid latch with your thumb nail. 2. Insert two (2) (AAA) size batteries according to the plus (+) and minus (-) markings. Always use Alkaline batteries. 3. Replace cover. 4. Press the “ACL” button on the face of the Remote.