MANUEL D'INSTALLATION Pour le personnel agréé uniquement. MANUAL DE INSTALACIÓN Solo para personal autorizado. Français For authorized personnel only. Español INSTALLATION MANUAL English AIR CONDITIONER OUTDOOR UNIT PART No. 9374747153 En-1 9374747153_IM.
AIR CONDITIONER INSTALLATION MANUAL PART No. 9374747153 Outdoor Unit Contents 1. SAFETY PRECAUTIONS… ……………………………………………………………… 1 2. ABOUT THE PRODUCT 2. 1. Precautions for using R410A refrigerant… ………………………………………… 2 2. 2. Special tools for R410A refrigerant… ……………………………………………… 2 2. 3. Accessories… ………………………………………………………………………… 2 2. 4. System configuration… ……………………………………………………………… 2 3. INSTALLATION WORK 3. 1. Selecting an installation location… ………………………………………………… 5 3. 2.
CAUTION For the air conditioner to operate satisfactorily, install it as outlined in this installation manual. Connect the indoor unit and outdoor unit with the air conditioner piping and cables available standards parts.This installation manual describes the correct connections using the installation set available from our standard parts. Installation work must be performed in accordance with national wiring standards by authorized personnel only. Do not use an extension cable.
2. 4. 1. Connectable indoor unit capacity type CAUTION The total capacity of the indoor units connected must be between 27,000 and 39,000 BTU. Connection patterns are restricted. Normal operatio n is not guaranteed if connected pattern in the combination not listed below. The product may be damaged. Surely connect in accordance with the combination in the following connection pattern. • To install an indoor unit, refer to the installation instruction sheet included with the indoor unit. Port D ø1/4 in.
OUTDOOR UNIT：18 type Indoor unit connection pattern Indoor unit A B C 1 7,000 7,000 – 2 9,000 7,000 – 3 12,000 7,000 – 4 15,000 7,000 – 5 18,000 7,000 – 6 9,000 9,000 – 7 12,000 9,000 – 8 15,000 9,000 – 9 18,000 9,000 – 10 12,000 12,000 – 11 15,000 12,000 – 12 7,000 7,000 7,000 7,000 13 9,000 7,000 14 12,000 7,000 7,000 15 9,000 9,000 7,000 16 9,000 9,000 9,000 Outdoor port Connectable model name Standard port size [in.(mm)] C 1/4 (6.
2. 4. 6. Limitation of refrigerant piping length 3. INSTALLATION WORK CAUTION The total maximum pipe lengths and height difference of this product are shown in the table. If the units are further apart than this, correct operation cannot be guaranteed. Please obtain the approval of the customer when selecting the location of installation and installing the unit. 3. 1. Selecting an installation location 164 ft. (50 m)*1 Total max. length (a+b) WARNING Max. length for each indoor unit (a or b) 82 ft.
3. 2. Drain installation 3. 3. Installation dimensions 36 type only CAUTION CAUTION Perform drain work in accordance with this Manual, and ensure that the drain water is properly drained. If the drain work is not carried out correctly, water may drip down from the unit, wetting the furniture. When the outdoor temperature is 32 ° F (0 ° C) or less, do not use the accessory drain pipe and drain cap. If the drain pipe and drain cap are used, the drain water in the pipe may freeze in extremely cold weather.
When an obstruction is present also in the upward area 3. 5. Installation of the unit • Install 4 anchor bolts at the locations indicated with arrows in the figure. • To reduce vibration, do not install the unit directly on the ground. Install it on a secure base (such as concrete blocks). • The foundation shall support the legs of the unit and have a width of 1 in. (50 mm) or more.
(1) Detach the caps and plugs from the pipes. 4. PIPE INSTALLATION - 1 (2) Center the pipe against the port on the outdoor unit, and then turn the flare nut by hand. 4. 1. Flare connection (pipe connection) CAUTION To prevent gas leakage, coat the flare surface with alkylbenzene oil (HAB). Do not use mineral oil. Do not use mineral oil on a flared part. Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
4. 1. 3. How to use adapter (Connection ports of outdoor unit) • When using the ADAPTER, be careful not to overtighten the nut, or the smaller pipe may be damaged. • Apply a coat of refrigeration oil to the threaded connection port of the outdoor unit where the flare nut comes in. • Use appropriate wrenches to avoid damaging the connection thread by overtightening the flare nut. • Apply wrenches on both of flare nut (local part), and ADAPTER to tighten them. 5. 1.
18 type Connection diagrams (Inter-unit) Power lines TERMINAL UNIT A 1 2 3 208/230 V 208/230 V 208/230 V 1 2 3 G DISCONNECT SWITCH (Locally purchased) INDOOR UNIT B TERMINAL Grounding line DISCONNECT SWITCH (Locally purchased) INDOOR UNIT C TERMINAL Grounding line G DISCONNECT SWITCH (Locally purchased) Grounding line INDOOR UNIT D TERMINAL DISCONNECT SWITCH (Locally purchased) Grounding line DISCONNECT SWITCH (Locally purchased) Grounding line L1 L2 G G UNIT B 1 2 3 208/230 V 208/230
18 type Look nut Conduit plate Power supply cable Knockout hole Power supply cable UNIT B connection cable Connection cable UNIT A connection cable 36 type (5) Be sure to seal the holes when applying the putty. Place the cables side by side. (Do not overlap the cables.) (6) Put the service cover and valve cover back after completion of the work.
6. PIPE INSTALLATION - 2 6. 1. Vacuum CAUTION (12) Remove the blank caps, and fully open the spindles of the 2-way and 3-way valves with a hexagon wrench. [torque : 4.4 to 5.2 lbf·ft. (6 to 7 N·m)]. (13) Tighten the blank caps and charging port cap of the 2-way valve and 3-way valve to the specified torque. Tightening torque [lbf·ft. (N·m)] Always use a vacuum pump to purge the air. Refrigerant for purging the air is not charged in the outdoor unit at the factory. 1/4 (6.35) 14.8 to 18.
6. 2. Additional charging 9. TEST RUN Refrigerant suitable for a total piping length of 164 ft is charged in the outdoor unit at the factory. When the piping is longer than 164 ft, additional charging is necessary. For the additional amount, see the table below. Total piping length [ft.
LED4 LED3 LED2 LED1 Hole LED is on the reverse side of the board. 9. 2. Confirming the operation of indoor unit Run the unit in a normal way, and confirm its operation. (Please end the test run first before confirmation) (1) Cold air (or warm air) must be discharged from the indoor unit. (2) The indoor unit operates normally when air direction or air volume adjustment button is pressed. 10.
