Celestron VMH30SB-1, VMC30SB-1 manual Pump Down Procedure

Page 27

Installation

NOTICE

If the actual pressure is higher than shown, the system is most likely over-charged, and charge should be removed. If the actual pressure is lower than shown, the system is most likely undercharged, and charge should be added.

PUMP DOWN

This is performed when the unit is relocated or the refrigerant circuit is serviced.

Pump Down means collecting all refrigerant into the outdoor unit without the loss of refrigerant.

Be sure to perform Pump Down procedure in the cooling mode.

Pump Down Procedure

1.Connect a low-pressure gauge manifold hose to the charge port on the gas side service valve.

2.Open the gas side service valve halfway and purge the air in the manifold hose using the refrigerant.

3.Close the liquid side service valve(all the way).

4.Turn on the unit's operating switch and start the cooling operation.

5.When the low-pressure gauge reading becomes 1 to 0.5kg/cm2 G(14.2 to 7.1 P.S.I.G.), fully close the gas side valve and then quickly turn off the unit. Now Pump Down procedure is completed, and all refrigerant is collected into the outdoor unit.

ENGLISH

Installation Manual 27

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Contents Wall Mounted Inverter Mini-Split System Table of Contents No installation may cause a fire and electrical shock Be sure not to do Be sure to follow the instructionIt may cause injury or an accident Otherwise, it may cause a fire Otherwise, it may result in personal injurySharp edges may cause injury Otherwise, it may cause a fire or electrical shockOtherwise, it may do harm to your health Otherwise, it may cause water leakageOtherwise, it may disturb the neighbors Otherwise, it may cause vibration or water leakageFeatures Symbols used in this ManualInstallation Parts Installation ToolsRead carefully, and then follow step by step Installation Map Select the best Location Indoor unitOutdoor unit Liquid Piping Length and ElevationDrill a Hole in the Wall Fixing Installation PlatePutting nut on Flaring WorkCutting Tubes Burrs removalConnecting the Piping CheckIndoor Wrap the insulation material around the connecting portion Indoor unit installationFor left rear piping Indoor unit installation Worst Practice Best PracticeKg .m Lb .ft OutdoorConnecting the Cables Wiring Diagram Connecting cable How to connect wiring to the terminalsFor strand wiring Power supply cable Strand wirePour a glass of water on the evaporator Checking the DrainageTo check the drainage Drain pipingForming the Piping Preparation Air PurgingAir purging Air purging with vacuum pumpSoap water method EvacuationFinishing the job Evaluation of the performance Prepare remote controllerTest Running Settlement of outdoor unitPump Down Pump Down ProcedureSelecting the locationOutdoor Unit Installation guide at the seasideHeat CONTROLLER, INC

VMH30SB-1, VMC30SB-1 specifications

The Celestron VMC30SB-1 and VMH30SB-1 telescopes are exceptional instruments designed for both amateur astronomers and experienced stargazers alike. These models offer remarkable optical performance in compact packages, making them ideal for both home use and portable observations.

The VMC30SB-1 features a unique catadioptric design combining a primary mirror with a corrector lens, enabling significant improvements in image quality and sharpness. This design minimizes spherical aberration and allows for more precise focusing. With an aperture of 30 cm, it captures ample light for deep-sky observing while maintaining a manageable size for transport.

The telescope utilizes a Vixen-style dovetail mounting, which ensures compatibility with a variety of mounting systems. This flexibility allows users to easily switch between different mounts according to their preference or observing needs. The VMC30SB-1 is also equipped with a 2-inch dual-speed focuser, which provides smooth and precise focusing, enhancing the overall observing experience.

On the other hand, the VMH30SB-1 offers similar optical and mechanical features but integrates a specialized coating technology to enhance light transmission and reduce glare. This ensures that users can enjoy brighter and clearer images of celestial objects, making faint details more visible.

Both models come with a solid, stable optical tube that minimizes vibrations, ensuring steady views even at high magnification. They include a built-in finderscope that simplifies locating celestial objects, coupled with a user-friendly interface for easy operation.

Moreover, Celestron’s innovative StarSense technology is available for these telescopes, allowing for automatic alignment and facilitating a smooth observing experience. Users can set up quickly, even in challenging conditions, without the need for extensive setup procedures.

In conclusion, the Celestron VMC30SB-1 and VMH30SB-1 are robust telescopes that bring a blend of advanced technology, superior optics, and user-friendly features. Whether for detailed planetary observation or exploring deep-sky wonders, these telescopes are a remarkable choice for enthusiasts looking for quality and convenience in one reliable package. With their durable construction and outstanding performance, they stand out in the competitive astronomy market, offering experiences that inspire awe and curiosity about the universe.
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