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Air-Conditioners
OUTDOOR UNIT
PUHY-YMC
FOR INSTALLER
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
∗ Remote controller (PAR-F25MA) is available as an optional remote controller.
ENGLISH
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Contents 1. Safety precautions ...................................................................... 3 1.1. Before installation and electric work ............................... 3 1.2. Before getting installed ................................................... 3 1.3. Before getting installed (moved) - electrical work ........... 4 1.4. Before starting the test run ............................................. 4 2. Combination with indoor units...................................................
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1. Safety precautions • Do not touch the heat exchanger fins. 1.1. Before installation and electric work - Improper handling may result in injury. • If refrigerant gas leaks during installation work, ventilate the s Before installing the unit, make sure you read all the room. “Safety precautions”. - If the refrigerant gas comes into contact with a flame, poisonous gases will be released. s The “Safety precautions” provide very important points • Install the air conditioner according to this Inst
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1.3. Before getting installed (moved) - 1.4. Before starting the test run electrical work Caution: • Turn on the power at least 12 hours before starting operation. Caution: - Starting operation immediately after turning on the main power • Ground the unit. switch can result in severe damage to internal parts. Keep the power - Do not connect the ground wire to gas or water pipes, lightning switch turned on during the operational season. rods, or telephone ground lines. Improper grounding may r
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2. Combination with indoor units The indoor units connectable to this unit are shown below. Total capacity of Outdoor unit model Quantity of connectable connected indoor unit Model name of connectable indoor unit name indoor unit models PLFY- P32 · 40 · 50 · 63 · 80 · 100 · 125 VKM PUHY-600 300 to 780 PLFY- P20 · 25 · 32 · 40 · 50 · 63 · 80 · 100 · 125 VLMD PEFY- P20 · 25 · 32 · 40 · 50 · 63 · 80 · 100 · 125 VM PUHY-650 325 to 845 PDFY-P20 · 25 · 32 · 40 · 50 · 63 · 71 · 80 · 100 · 125 VM 3 to 3
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4. Outdoor unit configuration The unit (PUHY-600/650/700/750YSMC) consists of a combination of variable capacity units (PUHY-400/500YMC) and constant capacity units (PUHN- 200/250YMC). A CMC-30A (optional) is required when using a combination of these units. Super Y Variable capacity unit Constant capacity unit PUHY-600YSMC PUHN-200YMC PUHY-400YMC PUHY-650YSMC PUHN-250YMC PUHY-700YSMC PUHN-200YMC PUHY-500YMC PUHY-750YSMC PUHN-250YMC CMC-30A (optional) Name 1 Distributer (gas) 2 Oil balance pipe
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6. Space required around unit When unit is surrounded by walls 6.1. Individual installation A B Basic space required A space of at least 250 mm is necessary at the back for inlet air. Taking B servicing, etc. from the rear into account, a space of about 450 mm should be provided, the same as at the front. C E D A D C A A L1 or more B L2 or more E F C Front B D Front panel E Rear panel C Note: • Wall heights (H) of the front and the back sides shall be within he
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6.2. Collective installation and continu- A ous installation C C C C B B Space required for collective installation and continuous installation: When installing several units, leave the space between each block as shown below considering passage for air and people. F F F FE B A B A A C C D C C B B D D A C C A A A (Must be open) B Wall height (H) C Front D 1000 mm or more D B E 250 mm or more F 450 mm or more G 900 mm or more Note: • Open in the two directions • In case wall height (H) exceeds ov
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8. Installation of unit 8.1. Location of anchor bolt Mount the constant capacity unit on the left and variable capacity unit on the right of the same frame (as seen from the front of the unit). Allow 10 mm of clearance between the units. • Individual installation (Unit: mm) Constant capacity unit Variable capacity unit 10 560±2 440 780±2 780±2 Service side • Example of collective installation Constant capacity unit Variable capacity unit Constant capacity unit Variable capacity unit 10 10 10 560
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Down piping and down wiring precautions When down piping and down wiring are performed, be sure that founda- tion and base work does not block the base through holes. When down piping is performed, make the foundation at least 150 mm high so that the piping can pass under the bottom of the unit. 694 80 82 78 A 584 194 75 230 150 25 160 A F 780B 780B 560B 15 15 760G F 1760G 990D 1990D A Bottom piping through hole B (bolt hole) C (bolt hole for old model
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9. Caution for snow and seasonal wind In cold and/or snowy areas, sufficient countermeasures to wind and snow Note: damages should be taken for operating unit in normal and good condi- 1. Height of frame base for snow damage prevention (H) shall be tion in winter time. Even in the other areas, full consideration is required twice as high as expected snowfall. Width of frame base shall for installation of unit in order to prevent abnormal operations caused by not exceed that of the unit. The fram
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10. Refrigerant piping installation Connecting the piping is a terminal-branch type in which refrigerant piping from the outdoor unit is branched at the terminal and connected to each of the indoor units. The method of connection consists of flare connections at the indoor units, flange connections for the piping of the outdoor unit and flare connections for the liquid, oil balance piping. Note that the branched sections are brazed. Warning: Always use extreme care to prevent the refrigerant g
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10.2. Refrigerant piping system Constant Variable capacity unit capacity unit Constant Variable Distributer (gas) (optional) capacity unit capacity unit Oil balance pipe (optional) I Gas line B (for distribution within the unit) Gas line A Liquid line B Liquid line A A G B Distributer (liguid) (optional) Note 1 Distributer Gas line (main) C Liquid line (main) C Line-branch method L (liquid) :indicates piping connection points Connection examples Distributer (gas) R (connecting to six indoor unit
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Constant Variable capacity unit capacity unit Distributer (gas) (optional) Oil balance pipe (optional) I (for distribution within the unit) Gas line B Constant Variable capacity unit capacity unit Gas line A Liquid line B Liquid line A Distributer (liguid) (optional) Gas line (main) C Liquid line (main) C :indicates piping connection points Multiple line/header A B Note 1 G Distributer Connection examples (liquid) To down stream units (connecting to six indoor units) Distributer A (gas) Branch h
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^ S S S S E E E 10.3. Precautions concerning piping connection and valve operation the manufacturer> • Connect piping and operate valves exactly as described in the figure below. • After performing the following distributor (gas) connection, remove the con- A necting pipe included with the gas ball valve of the variable capacity unit, and 3 mount the distributor (gas) (optional). 3 1 When brazing the distributor (gas), braze it
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O S S S S E E E • Connect piping and operate valves exactly as described in the figure below. Replace the solid packing. • Gas side connecting piping is already assembled when the equipment is shipped. (See figure on right.) 3 1 When brazing to connecting pipe with flange, remove the connecting pipe with flange from the ball valve, and braze at the outside of the unit. 2 During the time when removing the connecting pipe with flange, remove the seal attached on the ba
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A Valve stem Appropriate tightening torque by torque wrench [Fully closed at the factory, when connecting the piping, when evacuating, and when charging additional refrigerant. Open fully after the operations Copper pipe external dia. (mm) Tightening torque (N·m) / (kg·cm) above are completed.] ø6.35 14 to 18 / 140 to 180 B Stopper pin [Prevents the valve stem from turning 90° or more.] ø9.52 35 to 42 / 350 to 420 C Packing (accessory) ø12.7 50 to 57.5 / 500 to 575 D Distributer (gas) (option)
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10.4. Oil balance pipe connection method • Oil balance piping can be took out from the front, bottom or side of the unit (left side for the variable capacity unit, right side for the constant capacity unit). • Connect piping and operate valves exactly as described below. (for details, see item 10.3.) 1 After connecting oil balance pipe, be sure to evacuate using the service port of the variable capacity unit side valve. 2 After evacuating, be sure to fully open each valve stem. If you operate wi
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Taking out piping in the downward direction 10.5. Distributor (gas) connection (1) Remove the copper cap and rubber packing attached to the pip- method ing and flange of the distributor (gas) (optional). (2) Assemble outside the unit with the elbow (8), connecting pipe Taking out piping from the front direction (7 for 600 type), or connecting pipe (6 for types other than 600) (1) Remove the copper cap and rubber packing attached to the pip- in the specified shape and braze. (see Fig. 4.) in
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10.6. How to install branch pipe C For detail, please observe the instruction manual attached to the op- tional refrigerant branch kit. Joint D E C Pipe cutter A B D or E Deformed joint • When the number of pipes to be connected is smaller than the number of header branches, install a cap to the unconnected branches. The cap is included with the kit. A To outdoor unit B To branch piping or indoor unit Distributer (liquid) • Apart from the CMY-Y202-F and CMY-Y302-F gas side, there are no Fiel
