Hilton Short Hills NJ

Client:  Hilton Short Hills
Work Scope: Domestic Hot Water Plant Upgrade and Backflow Prevention

The existing hot water heating system supplying both the hotel common areas, kitchen and guest rooms was due for an upgrade. Our engineers provided an exhaustive and thorough estimation of the hotels hot water usage being sure to work closely with management to understand guest room hot water usage profiles. Of utmost importance was full redundancy of the capacity of the system; the hotel could never be without hot water. To meet this challenge high input, modular on-demand instantaneous gas fired water heaters were employed. The design is such that the system can meet peak demand and also provide great turn-down for low usage periods. The scalable modular approach promotes continuity in the case any-one burner-heat exchanger-control module requires repair or replacing all the while keeping full redundancy in the peak capacity. 

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1114 Bloomfield St, Hoboken, NJ

 

Client:  Private Owner
Work Scope: Residential HVAC Design

This turn of the century historic 3-story multi-family brownstone townhouse in Hoboken NJ required a heating system upgrade. The original oil-fired forced hot air furnace in the basement was a testament to the robustness and quality of early mechanical equipment, nonetheless, it was beyond its service life and needed to be replaced.  The work called for modernization of the heating system as well as implementing a strategy for providing cooling in the summer. A strict requirement was to have any equipment integrate seamlessly with the historical architectural features of the building’s interior. AEP met this challenge by specifying era-correct refurbished Victorian cast-iron radiators. The new boiler however, is a high-efficiency modulating condensing boiler with an indirect tank for domestic hot water. The air conditioning for each apartment is handled with mini-split systems. 

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265 York St Condominiums, Jersey City, NJ

Client: Private Investor
Architect: Jeff Jordan Architects
Project Type: Mechanical HVAC, Electrical, Plumbing and Fire Protection 

This newly constructed three-family, four story annex which is adjacent to its shared property, a turn-of-the-century building registered with the Jersey City Landmarks Conservatory, are both located in Jersey City’s historic Van Vorst Park. The historic building’s exterior was restored to its former condition while the adjacent new building was designed to visually blend with its neighbors whilst boasting modern amenities. In the new building, each floor is split into two heating and cooling zones, one North, and one South. Mini-split Variable Refrigerant Flow (VRF) heat pump systems were employed for heating and cooling. Automatic sprinklers were designed throughout. Gas-fired instantaneous tank-less water heaters were employed for each apartment. AEP worked closely with the architect, contractors, Jersey City authorities and the local utility provider to design and set the sub-slab foundation to ensure constructability and compliance with local ordinances and accuracy of incoming water, gas and electric services. Some challenges included the unavailability of three-phase electrical power in the neighborhood, low city water pressure and fitting HVAC systems and ductwork along with the other trades, e.g. electric, plumbing and fire protection in very tight, low-depth spaces above ceilings to accommodate the architects vision of the spaces. AEP met those challenges and the result is a beautifully designed modern and efficient condominium apartment building in a wonderful historic-urban setting.

See more photos at Jeff Jordan Architects

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Private Reseidence, Berkeley Heights, NJ

Client:  Private Owner
Architect:  Gary Rosard Architect
Work Scope: Residential HVAC Design

The owner and Architect of this 4000 sf private residence desired the comfort of radiant heat with the cooling efficiency of a central air conditioning system all while utilizing state-of-the –art high efficiency equipment. To answer this challenge, AEP designed a hybrid hydronic heat and heat pump system. This system coupled with a Heat Recovery Ventilator circulates heated or cooled condition air mixed with fresh outdoor air at just the right mixture and temperature at any given time throughout the year. During the winter months with the coldest outdoor temperatures, the heat pumps and air handlers cycle down and the heating is taken over by the supplemental hydronic system which uses a high efficiency condensing boiler and pump to circulate hot water through a network of radiant flooring and baseboard heating radiators.

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Explore Hotel and Hostel, Union City, NJ

 

Client: Private Investor
Project Type: Mechanical HVAC, Electrical, Plumbing and Fire Protection 

This project is a major renovation and conversion of a 10,000 square foot four story multi-apartment residence into a hotel. The renovation called for full HVAC, plumbing and fire protection design to meet all local and state regulations and codes. A 5 ton air-cooled split DX system and air handling unit with a hot water coil was designed to bring in 7,000 cfm of fresh tempered air to meet and exceed the ASHRAE Std. 62.1 ventilation fresh air requirement. 

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Backflow Prevention, Queens, NJ

Client: SLJ Property Management, LLC
Project Type: Backflow Prevention Design, NYCDEP Application  

AEP was contracted by SLJ Property Management LLC to design Reduced Pressure Zone (RPZ) and other Backflow Prevention Devices (BFP) systems to be installed in their building to meet the current NYC Department of Environmental Protection’s drinking water protection program which is legally mandated under the New York State Sanitary Code and the Rules of the City of New York. This job was one of three BFP jobs performed by AEP for three buildings owned by SLJ.

Backflow Preventers
A backflow prevention device is used to protect city water supplies from contamination or pollution. These devices allow water to flow in only one direction; that is, to the consumer, thus protecting the city water supply from contamination that an end user may cause. In an unprotected system water flows both in and out of a building without constraint. If there is a pressure drop, potentially contaminated water say from a chemically treated water storage tank will be pulled backwards into the city water system if not protected. Backflow prevention devices can be tested by a city licensed backflow tester, who examines various components such as double-check valves and reduced pressure zone devices to ensure their proper function.

Changes to NYC Plumbing Code
Effective July 1, 2008, the first major change in over 40 years was added to the New York City Plumbing Code:
“New Code: PC 608.3- “All devices, appurtenances, appliances, and apparatus intended to serve some special functions, such as sterilization, distillation, processing, cooling, or storage of ice or foods, and that connect to the water supply system, shall be provided with protection against backflow and contamination of the water supply system.” 608.13.2 Reduced Pressure Principle Backflow Preventers and 608.13.7- Double Check Valve assemblies. These devices shall be tested annually by a certified tester.”

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248 Reynolds Terrace, Orange, NJ

Client: MRM Management, LLC
Project Type: Engineering Report - Boiler Combustion Air Analysis  

Reynolds Terrace Apartments is a 120-unit building located in Orange, New Jersey. The means by which the buildings boiler room drew in combustion air had to be reexamined. During a previous summer season, one of two louvered openings providing combustion air for the boiler room was re-purposed and widened to create a roll up door and garbage truck dock. A new combustion air opening was created on the same wall further down adjacent to a portion of sprinkler piping; the existing louver was relocated to this spot. During the subsequent winter season, the relocated combustion air opening drew in cold outside and air froze the sprinkler system piping at that location. The fix was to infill this opening adjacent to the sprinkler piping and re-utilize the other of the two preexisting combustion air openings. An outside air intake opening and louver were sized to meet a six story residential building’s boiler room combustion air requirements. The sizing complies with the 2009 Uniform Construction Code of New Jersey which adopts the 2009 IMC code.

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