ENERSAVE Hydrocarbon Scroll Water Cooled Chiller

Transcription

1 ENERSAVE Hydrocarbon Scroll Water Cooled Chiller Your Green Input to Chiller ever found in the market To eliminate the threat of environmental impact by utilizing environmental friendly refrigerant gas- Hydrocarbon Refrigerant Gas

2 Table of Contents 1. Table of Contents Page 1 2. Model Description Page2 3. Superior Features Page 3 4. Technical Specification Page 4 Page 8 5. Refrigerant Gas Selection Page 9 Page Label on Hydrocarbon Chiller Page Safety Guideline and Minimum Room Ventilation Page Authorized Distributor and Qualified Installer Page Appendix Applicable to Commercial, Industrial, Institution and Government Building P a g e 1

3 Model Description P a g e 2

4 Superior Feature: ESWC Hydrocarbon series designed using scroll hermetic compressor. System designs consist of several systems and every system operated by single scroll compressor. It further reduces the refrigerant gas charge amount and increases the feasibility of easy maintenance and servicing. Scroll compressor ZR380 deploy to serve the main compression drive to ESWC Hydrocarbon Chiller, low noise level, high EER and high reliability and tested in many application. The electrical termination point is sealed by fire rating insulation. Series HC1 which is utilizing the HC-12a as refrigerant further reduce extremely high pressure hazard if compares to system using HC-22a and HFC R410a. Picture 2- Scroll Compressor Picture 3- Operation flow of scroll compressor Chiller capacity control design is based on number of compressor and the control step from thermostat controller. Other safety gadget to protect the chiller system is flow rate sensor, pressure switch, anti-freeze sensor and HC leak detector. HC leak detector can be linked to exhaust fan or other control circuit for refrigerant gas evacuation and indication. Picture 4 Isobutene/ Propane refrigerant gas sensor P a g e 3

5 Technical Specification: Model (55RT to 160RT) ESWC55S5 0SHC2 ESWC80S5 0SHC2 ESWC110S 50SHC2 ESWC135S 50SHC2 ESWC160S 50SHC2 General Capacity, RT +/-5% Input Power, kw No. Of refrigerant circuits Number of compressor Capacity Steps of Compressor Steps Compressor Type Scroll Scroll Scroll Scroll Scroll Compressor Size, Hp 30 (ZR380) 30 (ZR380) 30 (ZR380) 30 (ZR380) 30 (ZR380) each RLA(380Vac/3ph/50H z), each Locked Rotor Amp Connection Soft-Start Soft-Start Soft-Start Soft-Start Soft-Start Voltage Range Vac Power Supply 380/ 415V / 3ph/ 50Hz Condenser Shell & Tube Water Connection Size, mm dia, each Number of Condenser shell and tube Length, mm Condenser Water Temperature inlet /outlet, Degree Celsius Cooling Shell & Tube Differential Temp, Degree Celsius Chilled Water, LCWT 7.1 Degree Celsius Max. Water Pressure, Psig Number of Cooling shell and tube Water Connection P a g e 4

6 Size, mm dia, each HC-12a, Weight, kg per system HC-22a, Weight, kg per system Refrigerant Dimension Height, mm Width, mm Length, mm Notes: 1. 1 RT = 3024kcal/h = 3.517kW, 1m3 H2O 9.8kPa 2. Specification subject to change without prior notice 3. Compressor Oil SUNISO 3GS ESWC55S50SHC2 ESWC80S50SHC2 P a g e 5

7 ESWC110SS50SHC2 ESWC135SS50SHC2 P a g e 6

8 Technical Specification: Model (185RT & ESWC185S50SHC1 ESWC210S50SHC1 210RT) General Capacity, RT +/-5% Input Power, kw No. Of refrigerant 7 8 circuits Number of 7 8 compressor Capacity Steps of 7 Steps 8 Steps Compressor Compressor Type Scroll Scroll Compressor Size, Hp 30 (ZR380) 30 (ZR380) each RLA(380Vac/3ph/50H z), each Locked Rotor Amp Connection Soft-Start Soft-Start Voltage Range Vac Power Supply 380/ 415V / 3ph/ 50Hz Condenser Shell & Tube Water Connection Size, mm dia, each Number of Condenser 7 8 shell and tube Length, mm Condenser Water Temperature inlet /outlet, Degree Celsius Cooling Shell & Tube Differential Temp, Degree Celsius Chilled Water, LCWT 7.1 Degree Celsius Max. Water Pressure, Psig Number of Cooling 3 4 shell and tube Water Connection Size, mm dia, each P a g e 7

9 HC-12a, Weight, kg per system HC-22a, Weight, kg per system Refrigerant Dimension Height, mm Width, mm Length, mm Notes: 1. 1 RT = 3024kcal/h = 3.517kW, 1m3 H2O 9.8kPa 2. Specification subject to change without prior notice 3. Compressor Oil SUNISO 3GS ESWC210S50SHC2 P a g e 8

10 Refrigerant Gas Selection Hydrocarbon Refrigerant Gas HC refrigerant is designed to replace ozone-depleting, global-warming refrigerants, HC Refrigerants are made of natural, organic compounds not a blend of pre-existing, chemically based synthetic refrigerants. Features of HC Refrigerant: Benefits Highly efficient Energy Saving Non-ozone depleting Environmental Friendly Non-corrosive Enhance Life and Performance of Non-toxic A/C System Non-global warming Molecule Lighter In fact, HC Refrigerant products can actually enhance the life and performance of airconditioning and refrigeration system. Thanks to an anti-friction additive and their excellent thermal and chemical stability. After more than 12 years of extensive testing, it s clear that HC Refrigerant Products provide more efficient performance than the man-made, synthetic refrigerants they replace! is designed as direct replace and retrofit refrigerant gas for Ozone Depleting refrigerant R12 (CFC) or Global Warming refrigerant gas R134a (HFC) is designed as direct replace and retrofit refrigerant gas for ozone depleting refrigerant gas R22 (HCFC), Global Warming Refrigerant gas R410a, R411a and R407C A Natural Solution to a Global Dilemma A growing awareness of the environmental issues facing our planet has motivated many world leaders and governments to embrace hydrocarbon technology as a long-term solution to environmental concerns. The European Common has adopted a new Standard, EN 378, which provides guidelines for the use and installation of hydrocarbon refrigerants in over 14 European countries. In the past five years alone, more than 8 million refrigerators and freezers were manufactured in Germany and Denmark utilizing hydrocarbon technology. In the U.S., ASHRAE has rewritten Standard 15 to provide a framework for greater use of hydrocarbon refrigerants. In the past ten years, more than one million gallons of our HC Refrigerant has been used to cool between 3 million and 5 million motor vehicles P a g e 9

11 throughout North America. During that period, there have been no reported accidents or injuries attributed to the use of our products. Label on Hydrocarbon Chiller P a g e 10

12 Safety Guideline and Minimum Room Ventilation General Safety Issues All hydrocarbon refrigerants are highly flammable but non-toxic. This gives them an A3 classification according to BS EN378 Part 1. Reference should be made to this Standard which details the requirements for the safe use of flammable refrigerants in commercial and industrial applications. For more detailed information on these safety requirements refer to the Institute of Refrigeration Safety Code for A3 refrigerants. There are many other safety requirements that should be considered in the design and construction of all refrigerating and air conditioning installations, regardless of the flammability of the refrigerant used. General safety standards and codes of practice, referenced in this document, should be consulted for this additional information. Allowable Refrigerant Charge The limiting factor associated with the use of hydrocarbon refrigerants is the refrigerant charge size, the occupancy category and the room size. The charge size requirements according to Annex C of BS EN378 Part 1 are detailed in Table below. Table: Charge size requirements for various location categories Systems with charge sizes of 0.15kg or less can be installed in any size of room. Systems with charge size of more than 0.15kg room size should be such that a sudden loss of refrigerant shall not raise the mean concentration in the room above the practical limit (approximately 0.008kg/m3). Room Ventilation and Refrigerant Detection Refrigeration machinery rooms should be vented to the outside air by means of natural or mechanical ventilation. Free Air Movement (All) Ensure that free air movement can be achieved around all refrigerant containing parts of the system. Openings for outside air should be positioned such that short circuiting does not occur. P a g e 11

13 Mechanical Ventilation (All) Where the refrigerant charge of a single refrigerating circuit exceeds the mass in Equation below, a machinery room containing HC refrigerants must employ mechanical ventilation capable of providing the minimum ventilation rate. The minimum ventilation rate depends upon the type of electrical protection within the machinery room. Where the installation is protected according to the mechanical ventilation rate should be equivalent to at least 10- room volume changes per hour. Minimum ventilation fan flow rate for extraction, Vmin Vmin = Mr /[ tr (SF) (LFL)] Where: Vmin = minimum volume flow rate of extract fan, m3 /hr (ft3 /hr). Mr = largest mass of refrigerant within any single circuit of any refrigerating system, kg (lb). tr = minimum release time of refrigerant following a catastrophic leak, typically 0.17 hr. SF = safety factor, 0.5. LFL = Lower Flammability Limit of refrigerant, kg/m3 (lb/ft3) Vmin = 7.5 / (0.17 x 0.5 x 0.04) = 2206 m3/ hr or 1299 cfm Suggested Ventilation Fan should be more than 1299 cfm flow rate for Ener-Save In all cases a refrigerant detector should be linked into the initiation of mechanical ventilation. The location of the sampling point should be at low level (where heavier than air refrigerants are used). The ventilation must either be running continuously or use a refrigerant detector starting device set at 20% of the Lower Flammability Level (LFL). Lower ventilation rates can be initiated upon detection of lower refrigerant concentrations. The inlet of the extract ventilation should be located at floor level, and ducted to a safe location. Discharge points for vented air or openings for fresh air shall be positioned so as to avoid discharged air being drawn back in the building such as ventilation system inlets, opening windows and doors and sources of ignition. The rejection of flammable materials shall not present a hazard externally, such as entering a building or being in contact with sources of ignition. The mechanical ventilation system should be designed to maintain the room at a lower pressure than surrounding areas so that there will be no escape of leaked refrigerants to other areas. Fans for mechanical ventilation should use motors of non-sparking type and the fan blades and cowling should be designed so as to avoid sparking as a result of metal-tometal contact. Mechanical ventilation equipment should be installed with independent emergency control located outside of and near to the machinery room. P a g e 12

14 Authorized and Qualified Installer Product Manufacturer and HC Trainer ENER-SAVE SDN. BHD. ( A) Tel: , Fax: Today's Savings, Tomorrow's Sustainable Living! Switch To Green, Save The Environment, Save The Earth! P a g e 13