User Manual

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Siemens Reservation and energy management CM110602en
Building Technologies Reservations strategy 09/30/2008
2 Reservations strategy
The purpose of the Siemens HOTEL SOLUTION reservations strategy is to support the
management of energy.
To save as much heating and/or cooling energy as possible, the energy management
system is used to assign different temperature setpoints to vacant and allocated guest
rooms.
Guests expect to find their rooms at "room temperature" as soon as they check in.
To save costs while maintaining the comfort of guests, the rooms need to be pre-
heated or pre-cooled accordingly. The reservation management system provides one
way of achieving this objective.
2.1 Reservations
In a hotel, rooms can be allocated to guests in various ways. The system supports the
three most common methods:
• A guest reserves a room (any room)
• A guest reserves a specific room
• A guest arrives without prior reservation and checks in immediately ("walk-in")
It is important that the required number of rooms should be heated to "room
temperature" on the day of arrival. In addition, an unspecified number of rooms must be
prepared for walk-in guests. Normally, this is a matter for the hotelier's judgment, based
on experience.
The Siemens HOTEL SOLUTION supports this function by pre-heating/pre-cooling the
required number of guest rooms to the appropriate room temperature.
If a front-office program is used which operates with reservation algorithms, the
optimum room allocation sequence (in energy terms) can be transmitted via the
appropriate interface. Currently, the Hogatex FOS incorporates this type of interface.
2.2 Room allocation sequence
It is clear that every hotel has its own criteria for the allocation of rooms. To achieve
really effective energy savings, the actual design of the heating system must be taken
into account.
Siemens Building Technologies Group installs systems of this kind, and therefore
knows which rooms are connected to which heating circuit.
The objective of the energy strategy is as follows:
All rooms connected to the same heating circuit are allocated to the same energy
group. Consequently, every guest room is allocated to a specific energy group.