A Success Story on the installation of HVAC equipment and controllers for Aruba's new Hyatt Place.
by Johnson Controls
The Hyatt Place Aruba Hotel is located in Wayaca, Oranjestad Aruba, is the second Hyatt brand hotel in Aruba and the fourth Hyatt Place hotel in the Caribbean. Its location is ideal for business and leisure travelers.
The hotel is part of a mixed development that has 2,100 square meters of office space, for car rental and other uses; 800 square meters of food fair, shops and casual restaurants. With its variety of uses and wide spaces it is expected to provide the guest on their visit with a balance between work and local life.
The Hotel has 7 floors, fully equipped and offers:
• 116 large rooms with separate spaces
• Bar/Restaurant and dining room
• Swimming pool
• Event spaces offer more than 200 square meters
• Fitness center with cardio equipment and free weights to maintain your exercise routine
Efficiently controlled cooling system
The challenge of this project was to be able to integrate and control all the equipment of the water-cooled HVAC system to achieve an optimal operating coefficient (COP), incorporating a sensorless control in the variable primary pumping, using smart thermostats of the TEC3000 series in the rooms and FX-PC field controllers for the control of the Air Handling Units (UMA) of the common areas.
All these subsystems are connected to the BACnet MS/TP network of a Johnson Controls BMS Facility Explorer, which monitors and controls the equipment to achieve comfort and efficiency of the entire building.
This solution was provided by our ABCS (Authorized Building Control Specialist) Group 123 C.A., together with its subsidiary Gamiz Investments LLC, who have qualified personnel and the certifications obtained from Facility Explorer in Johnson Controls training centers.
Figure 1.
An air of comfort to every corner of the hotel
The building teams to command, control and/or supervise are the following:
• 2 Chillers Water-cooled screw Brand York, 250 TON each, with ELINK communication card
• Variable Primary Pumping Systems (3 pumps)
• Parameterizable Condensation Pumping System (3 pumps)
• 2 Cooling towers with fans
• Air handling units for common areas
• Fancoil units for rooms and some administrative areas
• Temperature and humidity measurements in outdoor environments
• Measurement of electrical parameters
To carry out the control of the aforementioned systems, a BMS Facility Explorer System was installed:
• TEC3000 thermostats with LCD screen and BACnet MS/TP communication for all 116 rooms
• FX-PCA field controllers for common area UMAS and pumping systems (primary and condensate) of the ice water plant
• VAV boxes with FX-PCV controllers for event halls
• An FX80 supervisor to interconnect, monitor and control all equipment using BACnet MS/TP protocol
• TE-6311P-1 duct temperature sensors (supply and return)
• Johnson Controls Series II variable speed drives for room corridor and event room UMAS
• P499 pressure sensors up to 100 psi, for monitoring and control of primary pumping of ice water
• Johnson Controls 6" ON/OFF VG1000 series valves for Chillers ice water and condensation circuits
Results
The installed BMS is intended to control the operation of the equipment within the established parameters, with local access so that the operation and maintenance staff of the Hyatt Place Hotel in Aruba can monitor and command the HVAC systems.
In addition, our ABCS, Grupo 123 C.A. offers the Hotel a remote monitoring service that allows it to adjust parameters of the equipment of the engine room such as Chillers, Water Pumps and Cooling Towers so that they operate more efficiently and thus determine if you have an efficient COP according to the color table.
The values received by the BMS are stored and graphed to be compared over time versus internal and external conditions.
With respect to the rooms, presence sensors were installed in each one that are connected to one of the digital inputs of its TEC3000 thermostat to activate the busy and unoccupied modes and thus automatically change parameters such as temperature set-point and fan speed; managing to reduce consumption when the room is not occupied.
