Daikin IM796 User Manual Download

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IM 796

Page 1

Installation and Maintenance Manual

IM796

Group:

Unitary

Part Number:

IM796

Date:

March 2005

Daikin

MWM Wall Mounted Split Type Air Conditioner

Indoor Unit

Wired Wall

Control (Optional)

Wireless Remote

Control (Standard)

Outdoor Unit

Summary of Contents for IM796

Page 1: ...tion and Maintenance Manual IM796 Group Unitary Part Number IM796 Date March 2005 2005 Daikin MWM Wall Mounted Split Type Air Conditioner Indoor Unit Wired Wall Control Optional Wireless Remote Control Standard Outdoor Unit ...

Page 2: ... Heat pump unit 17 Special Features 19 Dry mode 19 Heat mode heat pump only 19 Air Flow Control 19 Hot Keep for heat pump only 19 Overheating protection heat pump only 19 Frost prevention 19 Fan speed and rated cooling capacity 19 Main Filters 19 Cooling 19 Electrostatic Air Purifying Filter 20 Deodorizing Filter 20 Filter Replacement 20 Auto Random Re start Function 20 Low Ambient Kit 20 Minimum ...

Page 3: ...ore servicing Failure to disconnect power before servicing can cause severe personal injury or death CAUTION Use copper conductors only Unit terminals are not designed to accept other types of conductors Failure to do so may cause damage to the equipment CAUTION Do not install in a laundry room Humidity and laundry chemicals can corrode unit components Do not install the unit where leakage of flam...

Page 4: ...FR 32 7 1 8 11 1 2 10 7 8 1 2 1 8 MOUNTING PLATE SIDE VIEW FRONT VIEW MOUNTING PLATE 28 1 2 6 1 4 2 2 2 4 5 8 4 12 1 4 11 1 2 ELECTRICAL ROUGH IN SIDE VIEW FRONT VIEW MOUNTING PLATE 17 4 15 5 1 4 6 1 4 36 41 3 4 8 12 11 1 2 1 2 1 8 2 5 8 2 2 ELECTRICAL ROUGH IN ELECTRICAL ROUGH IN MOUNTING PLATE ...

Page 5: ... 6 2 10 3 4 2 5 1 2 2 1 2 2 1 2 19 3 8 18 5 8 3 4 3 4 9 10 1 2 29 29 PIPE CONNECTION 2 3 4 5 5 19 10 3 4 1 1 2 1 1 2 5 8 5 8 12 1 2 13 3 4 ELECTRICAL ACCESS PANEL WITH 7 8 KNOCKOUT 13 1 8 6 1 4 3 1 2 2 5 1 2 3 2 1 2 25 3 8 24 5 8 3 4 3 4 12 33 11 3 4 FRONT VIEW SIDE VIEW TOP VIEW PIPE CONNECTION 3 33 4 7 8 4 7 8 23 1 4 1 1 2 1 1 2 14 7 8 16 1 8 5 8 5 8 ...

Page 6: ...arances The indoor unit must be installed in a manner to prevent mixing the cool discharged air with the hot return air Please follow the installation clearances shown in Figure 2 Do not place the indoor unit in direct sunlight The location must be suitable for piping and drainage and be away from doors or windows Figure 2 Indoor Unit Minimum Clearances Piping The refrigerant piping can enter the ...

Page 7: ... located in alignment with the arrows on the mounting plate See Figure 6 Figure 5 Wall Opening for Piping Figure 6 Mounting Plate Wall Opening Installing Unit on Mounting Plate Hook the indoor unit onto the upper portion of the mounting plate Engage the two hooks at the rear top of the indoor unit with the upper edge of the plate Properly seat the hooks and replace the plastic rivet at the bottom ...

Page 8: ...g with a tube cutter See Figure 10 Remove burrs from cut ends by holding tubing down wards to prevent metal chips from entering the tubing Slide the flare nuts for both the indoor unit and outdoor unit onto the copper tubing Flare the tubing as shown in Figure 10 Figure 11 and Table 2 The flare must be even and not cracked or scratched Figure 10 Cutting and Flaring Tube Table 2 Tube Flaring Dimens...

Page 9: ...d technician in compliance with local codes Unit Size 10 15 20 25 Voltage 1Ph 60Hz 115V 208 230V 115V 208V 230V 208V 230V Power supply wire size Number of wires 12 ga 2 gnd 12 ga 2 gnd 12 ga 2 gnd 12 ga 2 gnd Connecting wire size Number of wires A C Number of wires HP 12 ga 2 gnd 4 gnd 12 ga 2 gnd 4 gnd 12 ga 2 gnd 4 gnd 12 ga 2 gnd 4 gnd Fuse Breaker size 15 amp 20 amp 15 amp 20 amp Connecting Wi...

Page 10: ... MOTOR CAPACITOR YELLOW GREEN AS COMP N2 N1 L DS L1 L2 POWER SUPPLY NOTATION IF INDOOR FAN SI ON OFF SWITCH AS AIR SWING MOTOR DS DISCONNECT SWITCH BY OTHERS CM OF C S R OL CAPACITOR CAPACITOR WHITE WHITE RED BLUE BLUE BLUE BLUE RED GREEN YELLOW BROWN ORANGE COMP N GREEN YELLOW NOTATION CM COMPRESSOR MOTOR OF OUTDOOR FAN OL OVERLOAD 12 GA WIRE BY OTHERS OUTDOOR UNIT MODEL MLC 10B 15B INDOOR UNIT M...

Page 11: ...AN MOTOR CAPACITOR AS COMP N2 N1 L DS L1 L2 POWER SUPPLY NOTATION IF INDOOR FAN SI ON OFF SWITCH DS DISCONNECT SWITCH BY OTHERS CM OF C S R CAPACITOR CAPACITOR WHITE RED BLUE BLUE BLUE BLUE RED BROWN COMP N GREEN YELLOW NOTATION CM COMPRESSOR MOTOR OF OUTDOOR FAN OL OVERLOAD 12 GA WIRE BY OTHERS OUTDOOR UNIT MODEL MLC 20B 25B INDOOR UNIT MODEL MWM 20F 25F L 5 3 1 YELLOW GREEN JP1 SHORTED FOR AUTO ...

Page 12: ... IM 796 MAIN BOARD ROOM THERMISTOR T3 15A ORANGE LO BLACK HI INDOOR COIL THERMISTOR AS ID OD CN12 COMP COMP S GREEN YELLOW OL OPTIONAL NETWARE 2 CONTROLLER N 12 GA WIRE LOW VOLTAGE CABLE TO OUTDOOR COIL SENSOR ...

Page 13: ...3 ORANGE LO BLACK HI COMP INDOOR UNIT 208 230V 1 60 MODEL MWM 10FR 15FR YELLOW GREEN INDOOR COIL THERMISTOR COMP YELLOW GREEN S GREEN YELLOW JP AS ID OD ORANGE OL OPTIONAL NETWAR 2 CONTROLLER E 12 GA WIRE LOW VOLTAGE CABLE TO OUTDOOR COIL SENSOR ...

Page 14: ... N2 4WV L DS L1 L2 POWER SUPPLY NOTATION IF INDOOR FAN SI ON OFF SWITCH AS AIR SWING MOTOR DS DISCONNECT SWITCH BY OTHERS SLM OPTIONAL WALL THERMOSTAT S2 HOT KEEP SWITCH ODC OUTDOOR COIL SENSOR CABLE INDOOR UNIT MODEL MWM 20FR 25FR L 5 3 1 YELLOW GREEN JP1 SHORTED FOR AUTO RESTART S2 OF N1 BROWN BLACK AS INDOOR COIL THERMISTOR SLM COMP 4WV OF N TH3 BLACK BLACK NOTATION FM FAN MOTOR CM COMPRESSOR M...

Page 15: ...BLUE BLUE BLUE BLUE RED BROWN COMP N GREEN YELLOW NOTATION CM COMPRESSOR MOTOR OF OUTDOOR FAN OL OVERLOAD FSCM FAN SPEED CONTROL MODULE OPTIONAL LOW AMBIENT KIT MODEL MLC YELLOW ORANGE 1 2 3 4 5 FSCM OUTDOOR COIL SENSOR TO INDOOR UNIT OL WHITE HP ONLY TO 4WV ...

Page 16: ...al R 22 ounces when tubing length is more than 25 feet Charge operation This operation must be done by weighing the R 22 being added thru the service port on the 3 way suction valve See Table 5 See Figure 17 1 Remove the service port cap 2 Connect the low pressure side of the charging gauge to the suction service port center of the cylinder tank and close the high pressure side of the gauge Purge ...

Page 17: ... 7 shows the LED indicator lights for the heat pump unit under normal operation and fault conditions The LED indicator lights are located at the bottom right side of the indoor unit The heat pump units are equipped to maintain selected room temperature by switching automatically to either cool or heat mode Figure 20 LED Indicator Lights For Heat Pump Unit LED indicator lights IR Signal Receiver Ti...

Page 18: ... Heating will resume after coil is defrosted Compressor cycling on overload Low outdoor air flow defective compressor or overload Indoor coil sensor loose or defective Attach or replace Outdoor coil sensor loose or defective Attach or replace Room air sensor loose or defective Attach or replace Unit Malfunctions If in AUTO or SLEEP mode switch to Heat turn SLEEP off unplug power cord and plug back...

Page 19: ...e 21 Overheating protection heat pump only If the indoor coil temperature exceeds 145 F because of high ambient conditions dirty air filter etc the compres sor will turn off Frost prevention If the indoor coil starts to frost in cooling mode the com pressor will stop and the Power indicator light will blink If the outdoor coil becomes frosted heating will stop for a few minutes while the unit goes...

Page 20: ... Sensor to the return bend as shown in Figure 23 Wrap sensor and return bend with insulating tape to promote accurate sensing of the refrigerant temperature Refer also to the instructions supplied with the kit Figure 23 Low Ambient Kit Location Minimum and Maximum Operating Temperatures Cooling Heating heat pump only Ts Dry Bulb Temperature Th Wet Bulb Temperature 32 F with optional Low Ambient Ki...

Page 21: ...TO COOL DRY FAN HEAT Temperature Setting Set the desired room temperature by pressing the buttons to increase or decrease the set temperature The temperature setting range is from 60 F to 86 F Press both buttons simultaneously to toggle the temperature setting between C and F Automatic Air Swing Press the SWING button to activate the automatic air swing function To distribute the air to a specific...

Page 22: ...ns air baffle for better air dis tribution 9 Display normally shows room temperature Momen tarily shows set point when a change is made 10 Heat symbol blinks while outdoor coil defrosts heat pump only 11 Error codes blink on display E1 Room sensor loose or defective E2 Indoor coil sensor loose or defective E3 Outdoor coil sensor loose or defective E4 Compressor cycling on overload E5 Low refrigera...

Page 23: ... and coil Be careful not to bend or flatten the aluminium fins DO NOT use cleaning fluids that might corrode the coil As required to prevent restriction of air flow Trouble Possible cause treatment The compressor does not operate Protection against frequent starting Wait for 3 to 4 minutes for the compressor to start operating Fans and compressor do not operate Power failure Check fuse or circuit ...

Page 24: ...in This document contains the most current product information as of this printing For the most up to date product information please go to www DaikinApplied com Daikin Applied 800 432 1342 www DaikinApplied com ...

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