December 2014 Pints with Pete The Year In Review
Busy Year at Unico New Products VAH: 2 2 ½ Ton, 2 ½ to 3 Tons, 3 to 3 ½ Tons I Series Outdoor Units IS24 IS30 IS36
New Products at Unico I Series Indoor Units High Wall Mounted 1 Ton 2 Tons Unico System U1218 2430 3036
Media Appearnces This Old House Over Haulin with Darryl Hall
Unico Changes Application Engineer ISO 9000 Certification Codification of Unico SDHV Addition of Vlad Mrnjavac, our new applications engineer
Marketing Efforts Wide variety of print ads Numerous trade articles Extensive presence on social media
Year in Pints with Pete Highlights: Many topics discussed Industry leaders co-hosted Talked about both product components and applications
Motors Interesting talk with NIDEC (formerly Emerson Motors) Controller is available separately from the motor Great emphasis on quality control, only a handful of returns each year EC motors are growing exponentially, are very similar in nature to the inverter technology we are exploring with the iseries
Airflow Top troubleshooting problem: Airflow Airflow Airflow Videos are available online at Unico University
New Unico Vertical Air Handler
One piece Painted EC Motor Fits into any closet
Dimensions 2430 3036 3642 Width 20 20 23 ¾ Height 42 42 44 Depth 20 24 25
INTRODUCING
Unico now gives you more options with Inverter Technology!
Features: Same outdoor unit for single split and multi-split Outdoor Inverter technology matched to EC variable speed indoor units. Higher system efficiency and SEER ratings: Up to 20 SEER! Ability to do zoning with dampers
Features: Use a wide variety of third party thermostats or wireless remote temperature control E-Mix option for Domestic Hot Water FREE HOT WATER IN THE SUMMER! Auxiliary Heat available for cold temperatures Broad temperature operating range from -25F to 120F
Wide modulation range
Features: Intelligent Defrost: Heats even in the Defrost Cycle!
4 Zone Dampers in Plenum
Outdoor Units
Indoor Units
Wide Selection of Indoor-Outdoor Units Remember, Inside Unit Load Cannot exceed outdoor Unit Capacity
Combines all the efficiencies and performance of inverter technology with all the features and benefits of The Unico System
Check The Air Flow at the Air Handler Check the Air Flow at the Outlet
An Amp meter Should measure to.01 amps
AMPS 2.4 Amps 100 200 300 400 500 600 700 800 CFM 680 CFM
44 Blade
Inspect the NTC thermistor for any cracks Inspect the capacitors for any bulging Capacitors
Check phase to phase resistance Use Ohmmeter to see if any two Wires have greater than 100K If lower, replace
Emerson EZ Check
New Menus New Improved Diagnostics
Metal Ear
Older Condensing Unit
New 20 SEER Condensing Unit
Replacing Older Unico Units
MERV Rating Scale Less than 20% MERV 1-4 MERVS 5-8 between 35% to 75% MERV 9-12 are 85% to 95% MERV 13-15 shows up on E1 group, over 95% MERV 16 tops out the E1 group at @95% HEPA
Humification with Unico 1. Higher operating static pressure 2. Small ductwork system 3. Reduced airflow 4. Usually installed in unconditioned spaces 5. High Velocity
Humidifiers and Unico Steam Fan Assist Bypass (not recommended with Unico)
General Filters Elite Steam Line Model
General Filters Fan Assist Model 1137
General Filter MSP180
General Air GUV100A83
Charging the System Before you start charging the system, there are other serious considerations Definitely consider installing a quality filterdrier Also consider a sight glass
Where should I install it?
FACTS No matter what company made the thermostatic expansion valve on your system, they are all designed to receive 100% Liquid refrigerant at the valve inlet. If you feed a TEV with liquid and vapor, the capacity of the TEV is reduced 50%!!!
Charging the System Pull a vacuum down to 500 microns Use a micron gauge. Not manifold gauges. Use hoses intended for pulling a vacuum. Not manifold gauge hoses. They leak under a vacuum. When you are certain there are no leaks (system holds a vacuum) charge the high side with liquid refrigerant. Start system and top it up with vapor refrigerant on the low side until you reach a full sight glass. You now have Subcooling Continue charging until you reach the proper amount of subcooling prescribed by the manufacturer
Unico and Heating Unico is involved in all aspects of HVAC, not just Air- Conditioning Unico is known for its outstanding comfort for air-conditioning but also provides superior heating
Unico and Heating
The Total Comfort System
INTRODUCING
Heating Cooling Bulletin 20-121 Page 2 iseries outdoor unit capacity for sizing (with SDHV units Only Outdoor Temperature IS24G065 IS30G080 IS36G110 F 115 14750 12300 12200 105 17200 14100 26000 95 20900 25700 31000 82 22650 27800 35000 47 25350 29000 35700 35 19200 21800 23000 17 15800 18900 26500 5 13075 16350 19600-7.6 11650 14150 17200-25.6 6750 7950 9200
Cold Climate Operation (-25.6 F) -15 C (5 F) +43 C (109.4 F) (122 F) iseries systems fit every installation, both warm and cold climate
Coming in 2015 More iseries Products Emix: Makes DHW using heat of refrigeration from the iseries 4 Ton Outdoor Unit the 14KW system
Coming in 2015 The Unilite
Coming Soon!
Unico Additional Presentation emix port for Domestic Hot Water
Coming in 2015 Unizone