Kitchen Ventilation & HVAC Efficiency Solutions Click to download presenta1on
SMALL BUILDING ENERGY MANAGEMENT SOLUTION Digi-SFT (Building Automation System) is a cloud based full featured building automation system which integrates sensors, actuators, and advanced control logic data with performance monitoring access. Features: - Loop automatically & continuously refined based on real time performance - S-Method: Reset supply-air static pressure & loop differential pressure to ensure minimum loop loss and stable operation - Reset supply air temperature based on actual load - Sequenced pump operation to match pump and loop performance - 40-80% rule: Chillers, boilers & compressors are sequenced to ensure reliable and efficient operation Benefits: - Low cost investment compared to standard BAS systems - Zone sensor upfront cost with monthly server fee - No on-site server required - Cloud based with fully programmable desktop & mobile access - Full data/reporting functionality
RESTAURANT AIR MANAGEMENT Issues Facing Kitchens - Cooking units generate substantial heat and airborne cooking by-products such as water vapor, grease particulates, smoke and aerosols. - Kitchen air exhausted to remove cooking effluent must be replaced with air to avoid excess negative space pressure. - Most restaurants have constant speed ac motors on exhaust hood, make-up air, and rtu supply fans. - Kitchen areas need slight negative pressurize to keep cooking by-products, and conditioned air from the rtu.
DIGI-KVC SOLUTION (KITCHEN VENTILATION CONTROL) - MODULATES THE KITCHEN EXHAUST FAN AND MAKE-UP AIR FAN - EXHAUST FAN AND MAKE-UP AIR FAN ARE COORDINATED AND NO LONGER RUN INDEPENDENT OF EACH OTHER - CREATES SLIGHT NEGATIVE PRESSURE TO BEST MANAGE FOOD EFFLUENT AND COOKING BY-PRODUCTS - MONITORS THE EXHAUST AIR TEMPERATURE LEVEL AT THE KITCHEN EXHAUST HOOD - INDEPENDENT FULL-TIME MAKE-UP AIR FAN IS IDEAL FOR PROVIDING REPLACEMENT AIR FOR VENTILATION PURPOSES ONLY
DIGI-KVC APPLICATION Kitchen Exhaust Air Digi-KVC Restroom Exhaust Air Dedicated make-up air fan Outdoor Air Digi-RTU V F D Outdoor Air *Exhaust Air Temp Sensor EATS* Capture Jet Hood Exhaust Air Return Air Kitchen Exhaust Air Kitchen Make-up Air Transfer Air Kitchen Dining/Service Area
RESTAURANT AIR CONDITIONING A/C Issues Facing Restaurants - Restaurants struggle to maintain temperature control due to kitchen demand as well as the ebb and flow nature of their customers and business model. - Rooftop hvac units are sized for the 2-3 hottest days of the year and then oversized as a margin of error. The result is a unit(s) that are oversized for the space they serve. - Rooftop package units operate on/off attempting to maintain set-point. They do not manage temperature nor humidity.
DIGI-RTU SOLUTION BY INTERCEPTING HEATING AND COOLING CALLS, THE DIGI-RTU S PATENTED TECHNOLOGY MANAGES THE COMPRESSOR AND FAN SPEEDS TO MATCH THE SPACE REQUIREMENTS. AS A RESULT SPACE TEMPERATURE AND HUMIDITY ARE BEST MANAGED. - Modulates HVAC rooftop units to match - space load conditions - Longer run times at slower speeds manages - space temperature and humidity - Reduces energy consumption up to 50% - Integrates with existing BAS or thermostat - As equipment runs at slower speeds, - space noise is reduced - Operating and maintenance expenses - are reduces American Public Power Association s 2011 DEED Energy Innovator Award
Restaurant Air Management & Energy Efficiency Solutions DIGI-KVC LOW COST BAS ALTERNATIVE CLOUD BASED, NO ON-SITE SERVER REQUIRED FULLY PROGRAMMABLE WITH REPORTING AND REMOTE ACCESS DIGI-RTU KITCHEN EXHAUST & MAKE-UP AIR FAN MODULATION IS COORDINATED SLIGHT NEGATIVE PRESSURE MANAGES FOOD EFFLUENT SAVINGS???? DIGI-SFT MATCHES ROOFTOP UNIT CAPACITY WITH DYNAMIC BUILDING LOAD LONGER RUN-TIMES BETTER MANAGES TEMPERATURE AND HUMIDITY REDUCES OVERALL ENERGY UP TO 50% *Digi technologies can be implemented as standalone solutions