This hotel has 279 rooms, and the Oventrop valves provide for commissioning, isolation, straining and hydronic balancing. They were selected by mechanical-services contractor Rotary NW.
The building has two plant rooms. There is one on the third floor housing boilers, chillers, air-handling units and ancillary plant. The other is on the 24th floor and houses equipment for the constant-temperature LPHW system for radiators and towel rails in the 22 floors of residential apartments.
The heating and cooling systems were installed by Rotary NW and comprise four gas-fired atmospheric boilers in the level-three plant room to serve air-handling units, corridor radiators and DHW plate heat exchangers. From the boilers, LPHW is fed into a flow header before being circulated into various LPHW heating systems. Radiators in hotel corridors on floors four to 24 are served by a variable-temperature system.
Comfort conditions in the hotel guest rooms on the fourth to 24th floors are delivered by a Daikin water-cooled VRV system.
A constant-temperature LPHW system serves 24 AHUs in the third-floor plant room via flow header and a duplicated system of pumps. Another constant-temperature system provides hot water for the residential part of the tower. The water is circulated to the 24th-floor plant room, where it passes through a plate heat exchanger for distribution to floors 25 to 47 as LTHW to each apartment for radiators and towel rails.
Two air-cooled chillers in the third-floor plant room provide chilled water for AHU cooling coils and the VRV heat exchanger. Each chiller has a duty of 800 kW with flow/return temperatures of 6/12°C.
