Table of Contents
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Table of Contents
Related Manuals for Unico V2430
Summary of Contents for Unico V2430
- Page 1 VERTICAL AHU INSTALLATION MANUAL BULLETIN 30-015.003...
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Page 2: Table Of Contents
CHECKING AIRFLOW ..........................11 CHARGING A COOLING SYSTEM ......................12 CHARGING A HEAT PUMP SYSTEM ...................... 14 Certified to UL Standard 1995 Conforms to CAN/CSA Standard C22.2 NO. 236 Unico products comply with the European regulations that guarantee product safety. - Page 3 V2430/3036/3642 Vertical Air Handler Unit. The are covered in other bulletins. Before beginning any Unico vertical air handler unit (V-AHU) is a single installation, a detailed system layout must be done in packaged unit. The cooling and heating coils are accordance with Bulletin 40-40 System Sizing and contained within the same cabinet.
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Page 4: Mounting
All units are inspected prior to shipping and are is available to add additional features or to simplify carefully packaged in individual cartons. Inspect all installation. Please refer to the latest Unico Catalog for cartons prior to unpacking. Notify carrier of any damage. -
Page 5: Location
See drain pan for the drain line to clear the side. Figure 4 for standard sizes for the square adapter. Copyright © 2017 Unico Inc. Page 5... -
Page 6: Air Filtration
Return Duct best attenuation, always have at least one 90 degree The Unico return air system typically has a single return bend to eliminate direct line-of-site from the unit to the that includes the return air box with filter, the acoustical return opening. -
Page 7: Piping
Bulletin 30-015.003 inspect for clogs. The U-Trap is designed for the Unico System with a 2.5 inch (64mm) deep trap to handle the higher static pressures. The U-Traps also feature easy to remove clean-out caps and incorporate tees to accommodate any piping arrangement (Part No. - Page 8 Figure 10 Attaching TXV to Distributor expansion valve control, good thermal contact between the bulb and the suction line is essential. Figure 11 Attaching TXV to Liquid Line Figure 9 TXV Placement Figure 12 TXV bulb placement Copyright © 2017 Unico Inc. Page 8...
- Page 9 3. Plug the motor cable to the motor. solution with a freezing point below the coldest 4. Connect the anti-frost wires if using a refrigerant temperature expected coil. 5. Connect the thermostat wires. 6. Connect the condensing unit wires. Copyright © 2017 Unico Inc. Page 9...
- Page 10 Bulletin 30-015.003 Figure 14 Wiring Schematic, 230V Copyright © 2017 Unico Inc. Page 10...
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Page 11: Sequence Of Operation
DS105I07) to measure the CFM from each outlet. This closes the “W2” contacts and energizes the sequencer hand held vane type velocity meter that fits directly for electric heat. When the second stage thermostat is Copyright © 2017 Unico Inc. Page 11... -
Page 12: Charging A Cooling System
75 to 85°F (24 to 29 °C) is preferred. If the system charge must be checked when the outdoor temperature is below 80°F (26.7 °C), block the condenser coil until the head pressure is approximately Copyright © 2017 Unico Inc. Page 12... - Page 13 CAUTION. TO MAINTAIN PROPER HEAT PUMP OPERATION, DO NOT STRAP THE LIQUID AND SUCTION LINES TOGETHER FOR HEAT PUMP SYSTEMS. Copyright © 2017 Unico Inc. Page 13...
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Page 14: Charging A Heat Pump System
Likewise, the system may cycle on the anti- frost control because of a low refrigerant charge if the The Unico System will show a lower suction pressure system was charged during heating. during the cooling mode than a conventional system. - Page 15 (gauge) any heat pump is operated during mild weather (temperatures above 50°F (10 C)), the compressor may 48.4 trip out on the high pressure limit. The Unico System 51.1 is particularly sensitive to this since it operates at a 53.8 higher pressure.
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