Sanyo Cool/Dry installation instructions Air Purging

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05-424 KS0971-1271 12/13/05 1:28 PM Page 19

6. Air Purging

Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. Therefore, they must be purged completely.

pressure in the system rises

operating current rises

cooling (or heating) efficiency drops

moisture in the air may freeze and block capillary tubing

water may lead to corrosion of parts in the refrigerant system

Air Purging with a Vacuum Pump (for Test Run)

(1)Check that each tube (both narrow and wide tubes) between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed. Note that both narrow and wide tube service valves on the outdoor unit are kept closed at this stage.

(2)Using an adjustable wrench or box wrench, remove the valve caps from the service valve on both nar- row and wide tubes.

(3)Connect a vacuum pump and a manifold valve (with pressure gauges) to the service port on the wide tube service valve. (Fig. 57)

 

CAUTION

The service port on the wide tube

 

 

 

service valve uses a Schrader core

 

 

 

 

 

 

valve to access the refrigerant sys-

 

 

 

tem. The valve core is similar to

 

 

 

those used in automobile tires.

 

 

 

Therefore, be sure to use a vacuum

 

 

 

hose connector which has a push-

 

 

 

pin inside.

 

 

 

Be sure to use a manifold valve

 

CAUTION

 

 

for air purging. If it is not avail-

 

 

 

 

 

 

 

 

able, use a stop valve (field sup-

 

 

 

ply) for this purpose. The “Hi”

 

 

 

knob of the manifold valve must

 

 

 

always be kept closed.

(4)With the “Lo” knob of the manifold valve open, run the vacuum pump. The operation time for the vacu- um pump varies with tubing length and the capacity of the pump. The following table shows the amount of time for evacuation:

Table 7

Required time for evacuation when 100 liter/h vacuum pump is used

If tubing length is

If tubing length is

less than 33 ft. (10 m)

more than 33 ft. (10 m)

 

 

10 min. or more

15 min. or more

 

 

Indoor unit

Outdoor unit

Manifold valve (Exclusively for R410A)

Pressure

Lo

Hi

gauge

 

 

Charging hose (Exclusively for R410A)

Vacuum pump adapter (Exclusively for R410A)

(with reverse flow prevention)

Vacuum pump

Fig. 57

NOTE

To prevent other refrigerants from being mistakenly charged to units which use R410A, the size of the charge port on the service valve is different from the one for other refrigerant types. For servicing such as recharging, the specified charging hose, manifold and vacuum pump adapter (with reverse flow prevention) for R410A must be used.

NOTE

The required time in Table 7 is calculated based on the assumption that the ideal (or target) vacuum condition is around 10 mmHg abs.

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Contents Contents Installation Instructions…In Moist or Uneven Locations For safe installation and trouble-free operation, you must…In a Ceiling or Wall …In a RoomOptional Copper Tubing Kit Tools Required for Installation not suppliedAccessories Supplied with Unit Table GeneralAdditional Materials Required for Installation Installation Site SelectionIndoor Unit Baffle Plate for the Outdoor Unit CLxx models only Outdoor UnitMake a Hole How to Install the Indoor UnitTrical wiring or conduits are Remove the Rear Panel from the UnitHole Dia Install the Rear Panel on the WallIf Wooden Wall If Block, Brick, Concrete or Similar Type WallHow to replace the grille Remove the Grille to Install the Indoor UnitShape the Indoor Side Tubing Wiring Instructions General precautions on wiringRecommended Wire Length and Diameter Wiring Instructions for Inter-unit Connections For Outdoor Unit For solid core wiring or F-cable How to connect wiring to the terminal For Indoor UnitFor stranded wiring Right-side tubing MountingDrain cap Switching drain hose and drain capLeft-side tubing Drain hoseUnit or operate it until all Do not supply power toTubing and wiring to the out To unmount indoor unitFirst refer to . Installation Site Selection How to Install the Outdoor UnitWiring Instructions for the Outdoor Unit Use of the Flaring Method Flaring Procedure with a Flare ToolTo 0.5 mm Adjust so that the amount of tube Refrigerant TubingTo prevent heat loss and wet floors due to dripping of con Connecting Tubing between Indoor and Outdoor UnitsFinishing the Installation Insulation of Refrigerant TubingAir Purging Hex wrench before Be sure to completely insertAttempting to turn the valve How to Test Run the Air Conditioner Pump Down Basic Functions of the Service ValvesTo take out the remote control unit, pull it forward Remote Control Unit Installation PositionMounting on a Wall Address Setting of the Remote Control Unit Address Switch

Cool/Dry specifications

The Sanyo Cool/Dry air conditioning unit is a versatile and efficient solution designed to provide optimal indoor comfort across varying climate conditions. Known for its advanced technologies and features, the Sanyo Cool/Dry offers an ideal balance between performance and energy efficiency, making it a popular choice among consumers looking for reliable cooling and dehumidifying capabilities.

One of the standout features of the Sanyo Cool/Dry is its multi-function capability. This unit is designed to operate in two modes: cool and dry, allowing users to effortlessly switch between air conditioning and dehumidification based on their needs. The cooling function ensures that rooms are kept at comfortable temperatures even during the hottest days, while the dry mode effectively reduces humidity levels, promoting a healthier indoor environment.

Energy efficiency is a hallmark of this model, as it includes advanced technologies that minimize energy consumption without sacrificing performance. The Sanyo Cool/Dry is equipped with a high-efficiency compressor that adapts its power according to the cooling demand. This inverter technology not only ensures a quieter operation but also significantly reduces electricity bills, making it an eco-friendly choice for environmentally-conscious consumers.

This air conditioning unit also comes with an intelligent control system that allows for easy operation and programming. Users can adjust their desired temperature settings with a remote control, which enhances convenience. Some models may even feature smart home integration capabilities, enabling users to monitor and control their air conditioning units through smartphone applications.

Another important characteristic of the Sanyo Cool/Dry is its air purification features. Many models include advanced filters designed to capture allergens, dust, and other airborne particles, helping to improve indoor air quality. This is particularly beneficial for those with allergies or respiratory issues, as it creates a cleaner and healthier living space.

Quiet operation is another highlight of the Sanyo Cool/Dry, making it suitable for residential environments where noise levels need to be kept to a minimum. This is ideal for bedrooms, offices, or any space where tranquility is prized.

In summary, the Sanyo Cool/Dry air conditioning unit combines efficiency, versatility, and user-friendly features, making it a standout option for those seeking effective climate control solutions. With its dual-mode functionality, energy-efficient technology, smart operation, and air purification capabilities, it satisfies a wide range of consumer needs while enhancing overall comfort in living and working spaces.