Continental Single Phase Chillers | UniPac™ |
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UniPac™ Options and Selection Procedures |
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1.Control Transformer - For applications where a separate
2.Factory mounted and wired flow switch - This accessory is mandatory for Continental warranty to be effective. Provides protection from chiller freezing due to “no flow” through
3.Factory Mounted and Wired Chiller Water Pump/Valve - Includes chilled water circulating pump, pump starter, and isolation valve. Provides system pump for chilled water circulation- saves field labor and material. This pump is interlocked with the flow switch and “phased in” at the factory for proper rotation.
4.
5.Low Evaporator Pressure Freezestat - Senses low evaporator pressure and shuts down system after sixty second time delay. Extra safety protection against low pressure due to gas shortage or freeze conditions.
6.Pressure Gauges -
7.Indicator Lights - Three indicating lights show Power On, High Pressure Fail, and No Flow/Freeze for each refrigerant circuit.
8.Vibration Isolators - Level adjusting spring type for
9.Low Ambient Controls - Standard units have fan cycling and are good for 45°F ambient.
a) For Low Ambient of 0°F. Includes a modulating solid state fan speed controller and a single phase condenser motor(s) as well as fan cycling.
b) For Low Ambient of
10.
11.Water Regulating Valve - Provides head pressure control for water cooled models USWC.
12.90/10
13.Blygold or Heresite Coated Condenser - Coil is coated with Blygold or Heresite for protection against elements. Minimal effect on heat transfer.
14.Copper Tube/Copper Fin Condenser Coil - Seamless copper tube with die formed copper fins, mechanically bonded to the tube. Provides maximum protection from
15.Complete Unit Coating - Your choice of paint, Blygold, Imron, polyester or Heresite coating for compete unit.
16.Stainless Steel Hardware - For extra protection against corrosion.
17.Low Speed Condenser Fan Motors - For lower noise levels
18.Centrifugal Condenser Fans - For ducted applications
19.Acoustical Enclosure - Compressor is located in an acoustical enclosure providing dampening of sound levels.
20.Dual Unit Kit - Allows operation of two or more units
21.Alarm Bell Contacts - Allows alarm bell connection to pressure controls for signaling if unit fails on manual reset safety controls. (alarm bell is not included but can be provided)
22.Water Flange Kit - Factory or field mounted consists of 150lb raised face flanges to convert male pipe thread to flanged cooler connections.
23.High Return Water Thermostat - Factory mounted thermostat senses high return water temperature at
24.Brine Chilling - Modified cooler and controls for various brines/glycols/alcohols.
25.High entering Water Process Cooling - Secondary plate heat exchanger with pump, factory mounted and wired to protect compressor against burnouts due to high water temperatures.
26.Potable/Ingredient Water at 34°F - For bakeries/produce or other applications.
27.Cooler Heater with Thermostat - For freeze protection.
28.Desuperheaters - Provides “free hot water” by recovering heat from super heated gas.
29.Compressor Circuit Breaker - Both fused and
30.Digital Temperature Readout
31.Compressor Cycle Counter/Hour Meters
32.
Ratings and Selection Procedures
1.Ratings: are in accordance with ARI standard for chillers. These ratings may be interpolated for any published chilled water temperatures between 40°F and 50°F but must not be extrapolated.
2.Chilled Water Flow: based on 2.4 GPM per Ton and 10°F chilled water range. Limit 6°F minimum to 14°F maximum.
3.Cooler Fouling Factor: 0.00025 fouling is standard
For 0.0005 fouling capacity correction factor = 0.982 x TR, 0.994 x kW For 0.00075 fouling capacity correction factor = 0.964 x TR, 0.989 x kW
4.Water cooled condenser fouling factor : ratings are based on 0.00025 for condenser. For 0.00075 Condenser tons x 0.97
5.Copper Fin Ratings: TR x 1.01 – kW x 0.99
6.Ethylene Glycol Correction Factors: Following factors are to be applied to the standard ratings for ethylene glycol. For other glycols consult factory.
% Wt. |
| Correction Factors |
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| Freeze | ||
Ethylene |
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| Point |
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| GPM/ |
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Glycol | Tons | kW | VP |
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| (°F) |
°F /Ton | |||||||
10 | .995 | 1.000 | 1.02 |
| 24.1 |
| 26 |
20 | .990 | 0.995 | 1.05 |
| 24.8 |
| 16 |
30 | .980 | .990 | 1.10 |
| 26.0 |
| 5 |
40 | .975 | 0.985 | 1.13 |
| 27.3 |
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50 | .960 | 0.980 | 1.18 |
| 29.0 |
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Altitude: Ratings are based on altitude of sea level. For other ratings use the following correction factors
Alt. Above | Capacity |
| Alt. Above | Capacity |
Sea Level | Multiplier |
| Sea Level | Multiplier |
Sea Level | 1.0 |
| 4000 | .971 |
1000 | 1.0 |
| 5000 | .962 |
2000 | .995 |
| 6000 | .951 |
3000 | .980 |
| 7000 | .949 |
7.For ratings outside this catalog range consult Continental for assistance
Selection Procedures
All units are rated in accordance with ARI Standard and cover a wide range of leaving chilled water temperatures and ambients from 85°F to 120°F.
To select any chiller it is necessary to know:
1.Capacity: ______ Tons
2.Entering and leaving chilled water temperature: ______ °F
3.Water Flow: ______ GPM
4. | Design ambient temperature: ______ °F or |
5.Entering/leaving cond. water temperature, for water cooled units: ______ °F Knowing any two of items 1,2 or 3, the third can be calculated as follows:
GPM = Tons x 24
Temp. Rise(Vt)
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Phone: | www.continentalchillers.com |
Fax: |
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