OFFICE BUILDING COMFORT SOLUTIONS SERVICE PRO MAX 3.0™ STATE-OF-THE-ART PREVENTATIVE MAINTENANCE ANALYSIS TO CERTIFY THAT YOU ACHIEVE THE MAXIMUM COST SAVING EFICIENCY OF YOUR EXISITING HEATING & COOLING EQUIPMENT ALLOWS FACT-BASED REPAIR / REPLACE DECISION MAKING ANALYSIS DETAILED REPORTS TO PROVIDE MANAGERS ACCURATE REAL-TIME EFFICIENCY AND PERFORMANCE STATUS LEVELS OF YOUR EXISTING HEATING & COOLING EQUIPMENT PROVIDES PRE-TEST AND POST-REPAIR EFFICIENCY % INDEX VALUES OF EACH UNIT Standards based on: The American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) & Air Conditioning Contractors of America (ACCA) Standards 180 ACCURATELY ESTIMATES THE HEATING & COOLING ACTUAL % CAPACITY OF EACH UNIT IF IT WAS SERVICED TO OPERATE LIKE NEW SUPPORTS SOUND BUSINESS DECISIONS DRIVES EFFICIENT EQUIPMENT BUDGETING ANALYSIS IMPROVES YOUR HEATING & COOLING SYSTEM’S OPERATIONAL AVAILABILITY & LIFECYCLE COST Tucson Electric Power (T.E.P.)

REBATE IS OFFERRED ON FOUR TON OR LARGER ROOF-TOP PACKAGE UNITS AGE OF EQUIPMENT: UNIT(s) MUST BE THREE YEARS OR OLDER TESTING & SERVICE MUST BE PERFORMED DURING THE A/C TUNE-UP (N/A @ HEAT TUNE-UP) T.E.P. REBATE IS OFFERED ONCE EVERY SIX YEARS ON EACH HVAC UNIT TESTED Examples of Program Cost: Larger Units Cost & Rebate Price % Discount: An industry leading approach to planned schedule maintenance programs Employ highly skilled professional team of service technicians – all certified Efficient preventative and diagnostic tasks reducing operating costs and decreasing energy consumption Comprehensive on-site inspection of your existing mechanical and environmental systems Contact us today at 520-629-9833 to request a meeting at your facility with one of our commercial accounts representative team members. The key objective is to offer and ensure a comfortable, healthy workplace and protecting the environment. Contact Hamstra at 520-629-9833 before noon and we 100% guarantee a service technician will be at your facility the same day before the close of our business hours.

Hamstra offers the exact same testing activities as the Premium Plus Plan. The following cleaning activities are omitted to provide an alternative lower-cost plan: Evaporative & condensing coils, blower wheels & condensate pans are excluded. By offering these activities separately, you select the requested cleaning per system. Name*Email*Phone*How May We Help You? Contact us today regarding a complimentary estimate Request a meeting at your facility with one of our commercial accounts representative team members The system simplifies air conditioning technology and delivers more than 100% energy savings vs. a conventional system. Understand your savings with the BeCool™ unit We believe that innovation begins with the customer’s needs and is followed by a solution that exceeds their expectations. Our state-of-the-art BeCool™ air conditioner delivers the best in HVAC performance and goes a step further to produce electricity that the customer uses to power their building.

The value of the electricity produced is higher than the cost of natural gas consumed, turning energy savings into energy earnings. The BeCool™ unit is a cogeneration system that produces electricity, heating and air conditioning (A/C).average cost of a new hvac unit Take a tour of our BeCool™ prototypeac unit checklist Learn how the BeCool™ system workscentral air conditioner indoor unit Applying the Air Conditioner to Your Building We believe that innovation begins with an approach to the customer's needs and is followed by a solution that exceeds their expectations. Be Power Tech will enter the commercial building market in 2019. Field trials are expected to begin in 2018. We are now accepting applications for field trial partners.

For more information, submit an inquiry. Protects and Restores the Environment Each BeCool™ unit installed has the same environmental impact as buying 5 electric cars. Assumptions: San Diego, CA typical meteorological year (TMY3), 10 ton cooling load, 5 kW average building electrical load (non-A/C), US grid average displaced emission rates Benefits of Air Conditioner Reduces building energy cost by more than 67% Produces 5 kW of high quality electricity to power your building or sell back to the grid Cooling or heating mode Peak electricity demand reduced by more than 70% Easy to install packaged rooftop system (direct replacement for standard 10 ton unit) No harmful chemicals (uses NO refrigerant) Protects and restores the environment by reducing and eliminating harmful emissions Water neutral (no hook up or condensate drain lines required)What is a 10-ton air conditioning unit? A 10-ton air conditioning unit is a cooling system capable of removing 120,000 British thermal units of heat per hour from the air in the building to which it is attached.

In this system of measurement, 1 ton is equal to 12,000 BTUs of heat extraction per hour. What is involved in installing a heat pump for residential heating? Prior to the invention of modern air conditioning, total cooling capacity was measured in tonnage, referring to the amount of ice that was used. The amount of heat that is necessary to melt 1 ton of ice in 24 hours is 286,000 BTUs, or about 12,000 BTUs per hour. This is the basis for the measurement of modern cooling capacity. How does a gas furnace work? A gas furnace consists of two parts, an outdoor air conditioning unit and indoor furnace that work together to draw in, heat and circulate winter air and c... How do Bryant heating and cooling systems work? What is a Protemp heater? How do Honeywell furnace controls work? What is a unit rate? Does injecting air into your bloodstream kill you? What are the advantages of using a ductless heat pump?There are many types, manufacturers, and sizes of commercial HVAC systems which can make it difficult to create general guidelines for repair procedures and estimates for hail-damaged units.

This guide uses the most common “light commercial” rooftop units (RTUs), which are 5-tons, 7.5-tons, and 10-tons in capacity, for estimating time to repair or replace. Defining Hail Damage to an RTU Hail damages a condenser coil when it impacts and bends the fins which prevents the appropriate airflow across the coil and inhibits cooling of the refrigerant. If the refrigerant is not cooled the system can overheat reducing the life of the unit. Coils are designed with extra capacity to allow for some reduction in airflow due to debris in the coils or minor bending of the fins, but proper practices to maintain unobstructed coils is important for extending the life of the unit. Repair versus Replacing Damaged Coils It is uncommon for the coil of the system to be so badly dented that the only way to return the unit to preloss condition is to replace the coil or entire unit. Hail typically does not have the mass or fall at the required trajectory to impact the coil with enough force to cause it to leak refrigerant, which would require more invasive repairs.

Most of the hail impact’s energy is lost when it bends the fins on the condenser coil and the refrigerant tubing behind the fins is left unaffected. If the coil is leaking refrigerant there is typically a noticeable oil spot at the impact or on the roof below the impact. Occasionally a coil may not be able to be combed because the fins are too closely spaced together to place a comb between them, the fins are too brittle and break when they are combed, or the cost to comb the coil exceeds the cost of replacing it. In these instances a replacement coil needs to be installed or the unit replaced if the coil is no longer manufactured. Combing is the most efficient way to repair coils and by far the most common repair method recommended by Donan’s forensic technicians. About 85% of Donan hail studies recommend repairing the unit by combing the coil. To comb a coil, a plastic or light gauge metal comb or a precision blade is inserted between the fins and pulled down to straighten them and allow the appropriate airflow to cross the coil.