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INSTALLATION INSTRUCTION
111
11
— Split System Heat Pump Air Conditioner —
X
Model Combinations
22222
K
Combine indoor and outdoor units only as listed below.
Indoor Units and Outdoor Units
33333
Indoor Units Type 24 36 42
T
4-Way Air Discharge
11111
XH2442
XH3642 XH4242
Semi-Concealed
X
(PNR-XH2442)
(PNR-XH3642) (PNR-XH3642)
(Matching Ceiling Panel)
44
444
22
222
Wall-Mounted KH2442
KH3642
K U
33333
Ceiling-Mounted TH2442
TH3642 TH4242
T
55
555
444
44
C
Concealed-Duct UH2442
UH3642
U
55
555
Ou
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Important When Installing Please Read Before Starting …………………………………………………………………… …In a Room This air conditioning system meets strict safety and Properly insulate any tubing run inside a room to prevent operating standards. As the installer or service person, it “sweating” that can cause dripping and water damage to is an important part of your job to install or service the walls and floors. system so it operates safely and efficiently. …In Moist or Uneven Locations For safe installation and tro
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CONTENTS Page Page 3-25. Checking the Drainage IMPORTANT 3-26. Increasing the Fan Speed Please Read Before Starting 4. HOW TO INSTALL THE OUTDOOR UNIT ................ 40 1. GENERAL ................................................................... 4 4-1. Removing the Protective Spacer for Transportation 1-1. Tools Required for Installation (Not Supplied) 4-2. Installing the Outdoor Unit 1-2. Accessories Supplied with Unit 4-3. Tubing Direction 1-3. Type of Copper Tube and Insulation Material 1
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Page 8. HOW TO INSTALL THE WEEKLY TIMER (OPTIONAL PART) ................................................... 65 8-1. Mounting Dimensions for Continuous Installation 8-2. When Using a Wall Box for Flush Mounting 8-3. Wiring Diagram 8-4. Test Run Setting 8-5. Memory Back Up Function for Power Failure Compensation 9. HOW TO INSTALL THE SYSTEM CONTROLLER (OPTIONAL PART) ................................................... 67 9-1. System Controller Installation 9-2. Electrical Wiring 9-3. Address Switc
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1. GENERAL Check local electrical codes CAUTION and regulations before This booklet briefly outlines where and how to install obtaining wire. Also, check the air conditioning system. Please read over the entire any specified instructions or set of instructions for the indoor and outdoor units and limitations. make sure all accessory parts listed are with the system before beginning. 1-4. Additional Materials Required for Installation 1-1. Tools Required for Installation (Not Supplied) 1. Refri
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Table 1-1 XH (4-Way Air Discharge Semi-Concealed) Part Name Figure Q’ty Remarks For determining suspension bolt pitch Full-scale installation diagram 1 111 11 For wide and narrow tubes Flare insulator 2 X For suspending indoor unit from ceiling Washer 8 (White) For wide tube flare nuts Insulating tape 1 22222 Hose band 2 For securing drain hose K Packing 1 For drain joint Drain insulator 1 For drain joint 33333 Drain hose 1 T Drain hose adaptor 1 For drain outlet Sealing putty 1 For sealing rece
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Table 1-3 TH (Ceiling-Mounted) Part Name Figure Q’ty Remarks For temporarily suspending Special washer 4 indoor unit from ceiling Drain insulator 1 For drain hose joint T3 T5 Flare insulator 1 Set For wide tube joints Drain hose adaptor 1 Drain hose clamp 4 Black 2 For wide tube and drain hose joint Insulating tape White 1 For wide flare joints (heat-resisting) Vinyl clamp 2 For ends of flare insulator Full-scale installation For determining suspension 1 diagram bolt pitch Sealing putty 1 For se
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Table 1-6 (Accessories for the Wired Remote Controller) Part Name Figure Q’ty Part Name Figure Q’ty 111 11 Wired remote controller 1 Spacers 2 (comes with 7-7/8 in. wire) X Machine screws 2 Wire joints 4 M4 × 1 in. 22222 K Wood screws 2 33333 T Table 1-7 (Accessories for the Wireless Remote Controller) 44 444 Part Name Figure Q’ty Part Name Figure Q’ty U Operation controller 1 Spacers 2 55 555 Run Timer Heating preparations Pan-head tapping screws Indicator section 1 4 4 × 13/32
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Table 1-8 (Accessories for the Weekly Timer) Part Name Figure Q’ty Part Name Figure Q’ty Weekly timer 1 Wood screws 2 Connecting wiring 1 Spacers 2 length 4 ft. Machine screws 2 Clampers 2 M4 × 1 in. Table 1-9 (Accessories for the System Controller) Part Name Figure Q’ty Part Name Figure Q’ty SYSTEM CONTROLLER IDENTIFICATION LABEL ALL Central Control ALL RCU. ZONE1 Central Control ZONE1 RCU. ZONE2 Central Control ZONE2 RCU. ZONE3 Central Control ZONE3 RCU. Label ZONE4 Central Control ZONE4 RCU.
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1-5. Tubing Length l Refrigerant tubing between the indoor and Tubing length (L) INDOOR UNIT outdoor units should be kept as short as 111 11 possible. X l Select and decide the installation location so Elevation difference (H) OUTDOOR that the length of the refrigerant tubing will be UNIT 22222 within the limits given in Table 1-10. K 0711_M_I Fig. 1-1 Table 1-10 33333 Models CH2442 CH3642, CH4242 T Tubing Data Narrow tube in. (mm) 1/4 (6.35) 3/8 (9.52) Tubing size outer dia. 44 Wide tube in. (
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3 ft. 3 ft. 3 ft. 3 ft. 3 ft. 2. SELECTING THE INSTALLATION SITE Indoor Unit Ceiling-Mounted Type AVOID: Ceiling l areas where leakage of flammable gas may be expected. l places where large amounts of oil mist exist. Wall l direct sunlight. Min.10 inch Min.10 inch l locations near inverter lamps which may affect Front view performance of the unit. NOTE The rear of the indoor unit can be installed flush l locations near heat sources which may affect against the wall. Ceiling performance of the
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Exhaust fan Outdoor Unit Hot air 111 11 Heat source AVOID: X Out- l heat sources, exhaust fans, etc. (Fig. 2-1) door unit l damp, humid or uneven locations. 22222 0591_C_I K DO: Fig. 2-1 l choose a place as cool as possible. 33333 l choose a place that is well ventilated and outside air temperature does not exceed maximum 115°F T Min. Obstacle above Min. constantly. 1 inch 1 inch l allow enough room around the unit for air intake/ Min. 44 7 ft. 444 4 in. exhaust and possible maintenance. (Fig.
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2-1. Air Discharge Chamber for Top Discharge Air discharge Install the air-discharge chamber in the field when: l it is difficult to keep a space of minimum 2 ft. between the air-discharge outlet and the obstacle. l the air-discharge outlet is facing the sidewalk and discharge hot air can annoy the passers-by. Refer to Fig. 2-4. 0426_C_I 22-5/16" Recommended outer dimensions of wind shield (field supply) 11-13/16" 21-13/16" 1-7/32" 9-27/32" 9-27/32" 5-5/32" 5-5/32" 23-5/16" 21-13/16" 0936_C_I 13
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2-3. Precautions When Installing in Heavy Snow Areas (1) The platform should be higher than the maximum. 111 11 In regions with snow fall, the outdoor unit should be provided with a platform and snow-proof duct. snow depth. (Fig. 2-5) X (2) The two anchoring feet of the outdoor unit should be attached to the platform, and the platform should be installed beneath the air-intake side of 22222 the outdoor unit. K (3) The platform foundation must be solid and the unit must be secured with anchor bol
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3. HOW TO INSTALL THE INDOOR UNIT n 4-Way Air Discharge Semi-Concealed Type (XH Type) 111 11 Hole-in-anchor 3-1. Suspending the Indoor Unit X Hole-in-plug Concrete Insert This unit uses a drain pump. Use a carpenter’s level to check that the unit is level. 3-2. Preparation for Suspending (1) Fix the suspension bolts securely in the ceiling Suspension bolt (M10 or 3/8") using the method shown in the diagrams (Figs. (field supply) 3-1 and 3-2), by attaching them to the ceiling 0038_T_I Fig. 3-1 su
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3-3. Placing the Unit Inside the Ceiling (1) When placing the unit inside the ceiling, deter- Full-scale installation diagram mine the pitch of the suspension bolts using the (printed on a cardboard packing) 111 11 supplied full-scale installation diagram. (Fig. 3-4) The size of the opening for the indoor unit can be X confirmed by attaching the full-scale installation diagram beneath the unit. (Fig. 3-4) Tubing and wiring must be laid inside the ceiling when suspending the unit. If the ceiling
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3-4. Installing the Drain Piping Transparent part for Hard PVC pipe Hose band checking drainage (not supplied) (supplied) (1) Prepare standard hard PVC pipe for the drain and use the supplied drain hose and hose band to 111 11 prevent water leaks. The PVC pipe must be purchased separately. X The transparent part allows you to check drain- age. (Fig. 3-6) Drain hose Packing Drain hose adapter (supplied) (supplied) (supplied) 0964_X_I Tighten the hose clamps Fig. 3-6 CAUTION so their locking nuts
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3-5. Checking the Drainage After wiring and piping are completed, use the follow- ing procedure to check that the water will drain 111 11 smoothly. For this, prepare a bucket and wiping cloth ready to catch and wipe up spilled water. X Do not supply power to the unit until the tubing and wiring to the outdoor unit are completed. (1) Take off the tube cover and through the opening, slowly pour about 43 oz. of water into the drain pan to check drainage. (2) Do Test Run to check the drainage after
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n Ceiling Panel 111 11 Never touch or attempt to X CAUTION move the air direction louver by hand or you may damage the unit. Instead, use the remote control unit if you want to change the direction or air flow. 3-6. Before Installing the Ceiling Panel (1) Remove the air-intake grille and air filter from the ceiling panel. (Figs. 3-13 and 3-14) (a) Remove the 2 screws on the latch of the air- intake grille. (Fig. 3-13) Screw (b) Press on the 2 latches of the air-intake grille Latch with your thum
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3-7. Installing the Ceiling Panel (1) Lift the ceiling panel and position it to align the (5) Install the air filter and air-intake grille by perform- panel hook with the panel catch of the indoor unit. ing the steps in section 3-6 in reverse. 111 11 NOTE NOTE X The ceiling panel must be mounted in the correct Rehook the safety string before closing the air-intake direction. Note that the 2 catches of the panel differ in grille. size. Confirm that the catches are correctly matched be- 3-8. When
