ROBUR_ACF-HR_com-leaf.qxt 16-09-2009 12:21 Pagina 1

caring for the environment

GA Line ACF HR Series 5 Ton Gas Fired Absorption Cooling with Heat Recovery

Cooling Applications with Heat which require simultaneous hot operates as a chiller only. Recovery. water production for applications The recuperator Robur high efficiency use such as domestic hot water or provides an output of 86,400 a water-ammonia air-cooled reheat in air handling units. BTU/h at 122 °F and can deliver absorption cycle and are The heat recovery operation water at temperatures up to designed for outdoor installation. does not interfere with normal approximately 176 °F. The HR version is engineered for chiller operation: when heat applications recovery is not required, the unit

Use Cooling with Heat Recovery electric power is reduced by Features electronic ignition box. Type Air cooled approximately 87% as • circuit made of low • Panels made of galvanized fluid Water compared with electric carbon steel and completely sheet metal with powder epoxy Cooling Capacity 60,500 BTU/h compression units. sealed. coating, thermally treated. Free Heating Capacity 86,400 • Minimal Electrical Power • tube and shell • Built-in safety and control BTU/h Requirements. Avoid electrical tower geometry made of devices, comprised of water Outlet water temperature service upgrades and three stainless steel. flow switch; sealed circuit cooling 37.4 °F / heating 176 °F phase service. Minimize electric • Variable speed condenser safety valve and safety by-pass Main application demand charges. for optimal performance and valve between high and low cooling systems with high • Smaller Generator Requirements efficiency. pressure side; generator high recovery of heating capacity suitable for domestic hot water for those applications requiring • Optional Direct Digital temperature limit switch with supply. off grid power or emergency Controller (DDC). A single manual reset; Main advantage Air conditioning cooling. device to fully manage and control system; redundant gas with free supply of hot water • High Reliability due to few control Robur units. valve; microprocessor control (maximum temperature 176 °F); moving parts inside the units. • Microprocessor Control. with LED readout to assist with availability of hot water from 86 • Easy Maintenance, similar to Printed resin electronic circuit maintenance and service to 176 °F for various applications, gas fired . with LED display. Ensures diagnostics; temperature such as pre-heating of domestic • No Water Consumption. No optimum operation of the limit switch with automatic water or reheat in AHUs, etc. and related absorption cooling process reset to avoid overheating. Additional advantages water treatment and while allowing easy access of • Single Phase Power. maintenance. unit data for preventative • Modular Systems containing up • No Use of Harmful maintenance and diagnostics. to 5 chiller modules are available that contaminate the • Pre-mixed gas burner. preassembled from Robur environment. Stainless steel multiple gas (RTCF HR series). • Outdoor Installation. No need type with ignitor and flame • Using gas as the primary for indoor equipment room. sensor device controlled by an energy source, the need of ROBUR_ACF-HR_com-leaf.qxt 16-09-2009 12:21 Pagina 2

GA Line ACF HR Series

PERFORMANCE RATINGS (1) ACF HR Cooling capacity (no recovery) (2) BTU/h 60,500 Cooling capacity (with recovery) (3) BTU/h 61,240 Heating capacity (3) BTU/h 86,400 Gas input BTU/h 94,900 maximum °F 120 Ambient operating temperature minimum °F 32 minimum outlet (to hydronic system) °F 37.4 Chilled water temperature maximum inlet (to unit) °F 113 Maximum hot water outlet temperature °F 176 Chilled water flow nominal GPM 12.2 Internal pressure drop Feet of Head 9.7 at nominal chilled water flow psig 4.2

ELECTRICAL RATINGS (1) Required voltage, 60 Hz, single phase (4) V 208 - 230 Operating consumption (5) kW 0.75

PHYSICAL DATA (1) Operating weight pounds 750 Chilled / hot water entering and leaving connections FPT 1” Gas inlet connections FPT 1/2” width inches 33 1/2 Dimensions length inches 48 1/2 height inches 50 3/4

(1) All illustrations and specifications contained herein are based on the latest information 122 °F - return 104 °F. available at the time of publication. (4) Units are factory-wired for 208-230 volts operation. (2) Cooling capacity at standard conditions (no recovery): ambient temperature 95 °F. Chilled (5) May vary by ± 10% as function of both power supply and electrical motor input tolerance. water outlet temperature 45 °F, chilled water inlet temperature 55 °F. (3) Cooling capacity at standard conditions (with recovery): ambient temperature 95 °F. Due to continuous product innovation and development, Robur reserves the right to change Chilled water outlet temperature 45 °F, heat recovery system water temperature - delivery product specifications without prior notice.

ACF HR dimensions ACF HR connection panel

Chiller - CHILLED WATER

A - Water Delivery to Appliance Ø 1” FPT

B - Water Return to Unit Ø 1” FPT

G - Gas Supply Ø 1/2” FPT

Recovery Unit - HOT WATER

C - Water Delivery to Appliance Ø 1” FPT

D - Water Return to Unit Ø 1” FPT

Front view Right side view

ACF HR hydronic System: Typical Installation Arrangement (External Components not included with Robur Unit)

1 Antivibration flexible hoses 6 Circulating water pump 2 Pressure gauge 7 3 Flow regulating valve 8 Chilled water storage 4 Water filter 9 DDC (optional from Robur) 5 Shut-off valve 10 Can Bus cable (optional from Robur)

Robur Corporation advanced heating and cooling technologies www.robur.com/us [email protected] 827 E. Franklin Street Evansville Indiana 47711 USA Ph. (812) 424-1800 Fax (812) 422-5117