ACMVTECH HIGH EFFICIENCY UNITARY AHU

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Irene Shields
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1 HIGH EFFICIENY UNITARY AHU 50 / 60 Hz R-134A, R407c R-407F, R-410A ACMVTECH HIGH EFFICIENCY UNITARY AHU WATER COOLED CONDENSERS VARIABLE and CONSTANT SPEED VSD FANS ; VSD COMPRESSORS

ACMCVTECH UNITARY AHU High Efficiency Unitary AHU (HEUA) are packaged with Huber & Ranner AHU, water cooled condensers and with optimized direct expansion cooling coils.

2 ACMCVTECH UNITARY AHU High Efficiency Unitary AHU (HEUA) are packaged with Huber & Ranner AHU, water cooled condensers and with optimized direct expansion cooling coils. HEUA are applied in commercial, industrial, laboratories and hospitals. Available as Horizontal or Vertical unit. Capacities range from 20 to 80 TR and can be fitted with Scrolls, Reciprocating and Screw compressors either operate on constant or variable speed or combination of both to optimize cost and energy savings. PACKAGED HIGH EFFICIENCY UNITARY AHU WASTE ENERGY (WE) RECOVERY ACMVTECH HEAU can be fitted as option with heat exchanger to recover waste energy from the compressor to heat water. This is use to control room humidity from 65% down to 35%. Some applications of WE in hospitals, pharmaceutical manufacturing, laboratories and process heating. VSD FANS and COMPRESSORS ACMVTECH HEUA utilize High Efficiency High Reliability fan -motors with built-in VSD (ECBlue motors) and are mainly used for VAV air distribution system to save energy. ECBlue are electronically communicated motors that can be operated from 5-100% of its rated speed. ECBlue motors are trademark of Ziehl-Abegg of Germany. Compressors are the main energy user of any refrigeration system that is why VSD is now a standard option to control ECBlue Fans capacity during partial load. HEAU with VSD is to meet customer s high expectations when it comes to energy consumption and more stringent local environmental laws. DIRECT EXPANSION COOLING COILS ACMVTECH HEUA are fitted with AHRI approved cooling coils. Coils sizing are computerized to match compressors selections. Direct expansion evaporators are available for R134a, R404a, R- 407C & F and R410A refrigerants. AHRI administers the ARI Performance Certified programs that test and certify the performance of cooling and commercial refrigeration equipment and components. AHRI is recognized as the industry authority on product rating procedures and performance monitoring.

Standard HEAU utilize reliable Thermostatic expansion valve (TXV).

Today Electronic Expansion Valve (EXV) have become more cost effective and with its inherent precise flow control of the refrigerant during full and

The EXV respond faster to meet cooling demands thereby improves the ACMVTECH HEUA efficiency.

and suction volume ratio is automatically adjusted.

3 Standard HEAU utilize reliable Thermostatic expansion valve (TXV). The TXV has external equalizers and proprietary bulb charges for maintaining constant gas superheats. Today Electronic Expansion Valve (EXV) have become more cost effective and with its inherent precise flow control of the refrigerant during full and part-load operation, the evaporator capacity is easily optimized. The EXV respond faster to meet cooling demands thereby improves the ACMVTECH HEUA efficiency. TXV EXV SCREW or SCROLL COMPRESSOR WITH VSD High Efficiency Optimized integrated part load value over time High accuracy temperature control Discharge and suction volume ratio is automatically adjusted. Low Power Consumption: Built-In Protection Gradual starting for low and no-inrush current Conventional starters not required Maintains good power factor while in operation Frequency inverter Low noise level Efficiency one of the industry best C3 level RFI filter UL & CE certified Inbuilt harmonics reduction Optional IEEE 519 compliance Built-in high and low pressure protection using transducers Built-in motor overload protection Integrated oil level and temperature protection Variable Speed Screw Compressor Scroll Compressor VSD or Single Speed

IMPORTANT FEATURES OF ACMVTECH HEUA Serviceable semi-hermetic compressor

condensing temperature Infinite compressor unloading for VSD drive from

Step unloading for single speed from 100 to 25% or combination step and

4 IMPORTANT FEATURES OF ACMVTECH HEUA Serviceable semi-hermetic compressor or Reliable hermetic scroll compressors Optimized heat exchangers for low condensing temperature Infinite compressor unloading for VSD drive from 100 to 16%. Step unloading for single speed from 100 to 25% or combination step and infinite EXV for DX evaporator R134a, R407c, R407F and R410a refrigerants * * R410A for scroll compressors only. Direct Expansion (DX) Evaporator Coil Panel or Bag Type Air Filters (or as per customer requirements) Braze Plate Heat Exchanger (Optional) Shell and Tube Heat Exchanger (Optional)

PLC CONTROLLER WITH HMI DISPLAY Return Air temperature Leaving Air water temperature (Optional) Compressor motor current Compressor % load Oil level alarm indication Suction and discharge pressure

controller options with codes as N, M, MH. N is a control type for Constant Speed compressor that uses Temperature Controller basic Controller and relays for normal operations.

5 PLC CONTROLLER WITH HMI DISPLAY Return Air temperature Leaving Air water temperature (Optional) Compressor motor current Compressor % load Oil level alarm indication Suction and discharge pressure and temperature Power supply Chiller elapsed time in operation Compressor on-off Fault alarms MODBUS or local operation HMI Touch Screen Monitor ACMVTECH HEUA CONTROLLERS ACMVTECH HEUA has three controller options with codes as N, M, MH. N is a control type for Constant Speed compressor that uses Temperature Controller basic Controller and relays for normal operations. M is a microprocessor based control use to manage the chiller operation. It has a small LCD display to read important data like, chilled water temperatures and refrigerant pressures. The M controller is able to record events that is downloadable with a computer. It has MODBUS protocol to communicate to the BMS. MH type is a microprocessor based controller with human-machine interphase (HMI). Like M type it will fully control ACMVTECH HEUA operation and important data can be displayed on the HMI. Operator can easily check the conditions of the chiller while in operation. The MH has also MODBUS protocol to communicate to the BMS as well as record events up to 30-days operation. Microprocessor Based Controller

OPERATOR-FRIENDLY MH type is an advance PLC controller option for all ACMVTECH Chillers.

Inputs can be simple on the touch screen with Menus to guide the operator.

HMI Touch Screen Monitor REMOTE-MODE OPERATION (BMS): Auto start and stop can be programmed for the whole year

All the conditioned can be done and/or recorded remotely through MH MODBUS.

AUTO-MODE OPERATION : Using a single push button the Auto-Mode is perform locally at the chiller s control panel.

6 OPERATOR-FRIENDLY MH type is an advance PLC controller option for all ACMVTECH Chillers. The Controller is programmed to manage analog and digital inputs to achieve control set point precisely. Inputs can be simple on the touch screen with Menus to guide the operator. Temperatures and pressures, power, and current of the motor is displayed. HMI Touch Screen Monitor REMOTE-MODE OPERATION (BMS): Auto start and stop can be programmed for the whole year operation. This minimizes the operators time. All the conditioned can be done and/or recorded remotely through MH MODBUS. The unit with MH is fitted with Local and Remote switch. AUTO-MODE OPERATION : Using a single push button the Auto-Mode is perform locally at the chiller s control panel. Once unit is switch on its operation is fully automatic through the PLC. SERVICING MODE: This allow the operator or serviceman to test the unit either preventive or during troubleshooting. NON-BMS MODE: Like the Remote Mode, the ACMVTECH Chiller operation can be programmed the whole year locally on the touch screen or HMI. Access door locks Drip Eliminators Inspection window Secured grounding connections

7 GENERAL DIMENSIONS Notes: 1.0 Off cooling coil temperature = 16 C 2.0 Fan motors for 20 to 60 TR are all with built in VSD 3.0 All other fan motors are driven by external VSD 4.0 External dimensions can be limited re-configured to suite tight spaces. 5.0 Dimension 'd' are drain connections 6.0 Dimension 'e' are condenser connections

8 kw / TR kwo / kwi HEUA EFFICIENCY COOLING APPLICATION COP AND kw / TR 7 COOLING COP CHW SUPPLY TEMPERATURE, C COOLING kw/tr CHW SUPPY TEMPERATURE, C Condensing temperature : 40 C 35 C Notes: 1. Based on R134A refrigerant 2. HEUA at full load operation 3. Evap. Fan power not included C/3PH/50HZ

9 MODEL NOMENCLATURE HEU WC 1 C VS MH 4 DC 40 Design Series Type WC : Water Cooled ACS : Air Cooled Split Number of Compressors 1, 2, 3, 4 Type of Compressor A : Reciprocating Semi Hermetic B : Scroll Hermetic C : Screw Semi-Hermetic Speed Control VS : Variable Speed CS : Constant Speed Control Type N : Normal type M : Microprocessor w/o HMI MH : Microprocessor w/ HMI Power Supply V / PH / Hz 1 : 575/3/60; 2: 460/3/60; 3: 230/3/60 4 : 400/3/50; 5 : 230/3/50 Evaporator Type DC : Direct Expansion Copper Tube, Alum. Fins DA : Direct Expansion All Aluminum Nominal Cooling Capacity, TR 10 80

PRODUCTS TO PAIR WITH ACMVTECH CHILLERS AIR HANDLING UNITS WITH DEHUMIDIERS AND HUMIDIFIERS Unit

solution Efficiency and Economy Reduced energy consumption and minimized internal pressure losses

Selection of fans adapted to the operating point Use of all conventional heat recovery systems;

all applications Suitable for interior and exterior installation Hygienic Finish Integrated

10 PRODUCTS TO PAIR WITH ACMVTECH CHILLERS AIR HANDLING UNITS WITH DEHUMIDIERS AND HUMIDIFIERS Unit construction totally smooth inner surfaces without edges, joints & grooves. Thermal optimized casing structure by GRP (glass reinforced plastics) profile Typical 2-Deck Arrangement (Other configurations available) Internal walls hygienically smooth Patented thermal solution Efficiency and Economy Reduced energy consumption and minimized internal pressure losses by optimized air flow though the treatment components. Selection of fans adapted to the operating point Use of all conventional heat recovery systems; layout to the actual application Life-Cycle-Cost optimized air handling units AHU Top quality for all applications Suitable for interior and exterior installation Hygienic Finish Integrated cooling units Various material versions designed to be dismantled Large and special units DCS (Desiccant Cooling System) AIR TO AIR Heat Recovery and High Efficiency motors

tube (S/T) heat exchangers Reciprocating

Condensers Automatic Tube Brush Cleaning

filters Sand Filters HVAC AHU, Clean Room

11 ACMVTECH HEUA SUPPLY OPTIONS Screw or Scroll compressors Plate or shell and tube (S/T) heat exchangers Reciprocating compressors (VSD) Automatic Tube cleaning for S/T condenser tubes Single or multiple compressors Air cooled Condensers Automatic Tube Brush Cleaning for Shell & Tube Condensers In line filters Sand Filters HVAC AHU, Clean Room and Industrial Applications Supplied w/ Heat Recovery Dehumidifier System Electronic Air Filters Chillers FORM101317ACMVTECH AC MV Pte. Ltd. 59P Tuas South Ave. 1, Singapore(637415) T ; F

Refrigerant Type Heat Recovery Unit for Temperature & Humidity Control Room

Legend of quality Energy saving products. Refrigerant Type Heat Recovery Unit for Temperature & Humidity Control Room ENERCOV, The best solution to create room environment controls such as humidity, temperature,