Envision Peripherals Series Unit Startup, Before Powering Unit, Check The Following

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NS SPLIT INSTALLATION MANUAL

Unit Startup

Before Powering Unit, Check The Following:

•High voltage is correct and matches nameplate.

•Fuses, breakers and wire size correct.

•Low voltage wiring complete.

•Piping completed and water system cleaned and flushed.

•Air is purged from closed loop system.

•Isolation valves are open, water control valves or loop pumps wired.

•Condensate line open and correctly pitched.

•Transformer switched to 208V if applicable.

•DIP switches are set correctly.

•DHW pump switch is “OFF” unless piping is completed and air has been purged.

•Blower rotates freely.

•Blower speed correct.

•Air filter/cleaner is clean and in position.

•Service/access panels are in place.

•Return air temperature is between 50-80ºF heating and 60-95ºF cooling.

•Check air coil cleanliness to insure optimum performance. Clean as needed according to maintenance guidelines. To obtain maximum performance the air coil should be cleaned before startup. A 10-percent solution of dishwasher detergent and water is recommended for both sides of coil, a thorough water rinse should follow.

Startup Steps

Notes: Complete the Equipment Start-Up/Commissioning Check Sheet during this procedure. Refer to thermostat operat- ing instructions and complete the startup procedure.

1.Initiate a control signal to energize the blower motor. Check blower operation.

2.Initiate a control signal to place the unit in the cooling mode. Cooling setpoint must be set below room temperature.

3.First stage cooling will energize after a time delay.

4.Be sure that the compressor and water control valve or loop pump(s) are activated.

5.Verify that the water flow rate is correct by measuring the pressure drop through the heat exchanger using the P/T plugs and comparing to unit capacity data in specification catalog.

6.Check the temperature of both the supply and discharge water (see page 24).

7.Check for an air temperature drop of 15°F to 25°F across the air coil, depending on the fan speed and entering water temperature.

8.Decrease the cooling set point several degrees and verify high-speed blower operation.

9.Adjust the cooling setpoint above the room temperature and verify that the compressor and water valve or loop pumps deactivate.

10.Initiate a control signal to place the unit in the heating mode. Heating set point must be set above room temperature.

11.First stage heating will energize after a time delay.

12.Check the temperature of both the supply and discharge water (see page 24).

13.Check for an air temperature rise of 20°F to 35°F across the air coil, depending on the fan speed and entering water temperature.

14.If auxiliary electric heaters are installed, increase the heating setpoint until the electric heat banks are sequenced on. All stages of the auxiliary heater should be sequenced on when the thermostat is in the Emergency Heat mode. Check amperage of each element.

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Contents Geothermal/Water Source Outdoor Split Heat Pumps 410A Refrigerant 4, 5, 6 Ton Dual CapacityPage Table of Contents Physical Characteristics Model NomenclatureGeneral Installation Information Equipment Selection Utilizing Existing Coil or Air HandlerAir Handler Installation Connection to Air CoilDual Fuel Systems Thermostat Wiring ElectricalGeneral Electrical DataClosed Loop Earth coupled Systems Outdoor Installations Connecting To Earth LoopFlow Center Installation Water PipingAir Handler Coil Data Air Handler NomenclatureLine Set Sizes `6O\RZS`RSZcPS`@ST`WUS`O\b  $ ! !$ $ Refrigerant Coil Compatibility Heat Recovery Unit for Domestic Hot Water Maximum One-Way Line LengthHeat Recovery Connections Water Tank PreparationPlumbing Installation Heat Recovery StartupWiring Schematics 24V Accessory relay see SW2 3 for description of operationMicroprocessor Control Fan G only Lockout ConditionsOperation Logic Data STG1 STG2 STG3 Emerg Dual Capacity UnitsDIP Switch Settings Freeze Sensing SettingRefrigeration Caused by excessive heatLeak Testing System EvacuationInitial System Charge Calculation Charging the SystemDetermining Subcooling Pressure/Temperature Coversion Chart for R-410A Unit Operating Parameters Dual Capacity ModelsPressure Drop and Recommended Flow Rates Dual CapacityUnit Startup Before Powering Unit, Check The FollowingStartup Steps Final Evaluation Unit Startup/Troubleshooting Heating Cycle AnalysisTroubleshooting LED Definitions and DiagnosticsStandard Microprocessor Controls Refrigerant SystemsPreventive Maintenance Replacement ProceduresCabinet Dimensions and Refrigerant Piping Connections Physical DimensionsNS026 thru NS072 Installation Notes Page Envision Series NS Outdoor Split

Series specifications

Envision Peripherals, a leading provider of display solutions, offers a wide range of products under its Series lineup tailored to meet diverse consumer needs in the realms of home, office, and gaming. With a focus on quality, performance, and user experience, the Envision Peripherals Series stands out in the crowded display market.

One of the main features of the Envision Peripherals Series is its commitment to high-definition displays. The Series includes a variety of monitors that offer resolutions starting from Full HD (1920x1080) up to 4K Ultra HD (3840x2160). This ensures that users can enjoy crisp and clear visuals whether they are working, watching movies, or gaming. The use of IPS (In-Plane Switching) technology in many of the monitors provides wide viewing angles and accurate color reproduction, making it perfect for creative professionals and content consumers alike.

In terms of technological advancements, the Envision Peripherals Series incorporates adaptive sync technology, such as AMD FreeSync and NVIDIA G-Sync compatibility. This feature reduces screen tearing and stuttering, providing a smoother gaming experience for competitive gamers. Additionally, many models in this series come equipped with high refresh rates, often reaching up to 144Hz, which is essential for fast-paced gaming applications.

The design of Envision Peripherals monitors is nothing to overlook either. Slim bezels and a modern aesthetic are standard across the Series, allowing for a sleek and professional look that fits well in any setting. Furthermore, some models offer ergonomic adjustments such as height, tilt, and swivel options, ensuring comfort during extended use.

Connectivity is another strong suit of the Envision Peripherals Series. Most monitors come with multiple input options, including HDMI, DisplayPort, and even USB-C in select models. This versatility allows easy connection to a variety of devices, from computers to gaming consoles.

Lastly, the emphasis on eye care technology, such as blue light filters and flicker-free screens, highlights Envision Peripherals' commitment to user health and comfort over prolonged periods of use. Overall, the Envision Peripherals Series combines exceptional visual quality, advanced gaming technologies, ergonomic design, and user-friendly connectivity, making it a top choice for consumers seeking a reliable and versatile display solution.
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