The Beginning and Evolution: PAFMAC Story Part 3

The Beginning and Evolution: PAFMAC Story



3.3　Types of AC systems to consider

        Types of systems that offer a year round cooling and heating are 4-Pipe Fan coil 
        system, Water source heat pump system and VRV system.
 
         Sacrifices and cost to overhaul air conditioning system in this hotel per system:

3.3.1 “4 pipe Fan coil system”

　  ・ It doesn’t fit within the existing pipe shaft, requires reduction of guest room space  
            and number of rooms.

    ・  The hotel would have to shut down its business for 3 months


  ・  Aside from the guest room construction fees, air condition construction cost alone 
        would be $9 million US dollars and work on the building would cost another
        $9 million, which totals $18 million.

   When calculating per room cost, it would be $20,000 per room.

3.3.2 “Water source heat pump system”


    ・  The hotel would have to shut down its business for 3 months
 
3.3.3 VRV System
    ・  It doesn’t fit within the existing pipe shaft, requires reduction of guest room space
            and number of rooms.

  ・  The hotel would have to shut down its business for 3 months

  ・  Refrigerant pipes do not fit into the hallway ceiling

  ・  There are no space to install the outdoor units.

 

  Actualization of a dual cooling and heating system would not be realistic by the three types   of air conditioning systems mentioned above. Therefore, in order to maximize the existing  
  2-pipe Fan coil system and achieve dual cooling and heating system with all year round at-
  command switching option, development efforts began for PAFMAC (PMAC And Fan-coil,
  Module, Air-conditioner, Cassette), an air conditioning unit specifically made for hotel    
  guest rooms with technology from the previous PFAS system intact.

 


 






















 

 












Popular posts from this blog

Recent PAFMAC Reviews in Japan Part 2

Image
Recent PAFMAC Reviews in Japan Part 2 Taken from an article published in the Japanese weekly magazine, “ HOTERES”.   NIPPON SEINENKAN HOTEL Hotel types: City Hotel Guest rooms: 220 rooms New construction     Our previous building was also a two-pipe air conditioning system and it had to be centrally controlled and locked in either cooling or heating mode, and it would take a full day to switch from one to the other mode. Therefore, we were always concerned about the weather every day during the changing of the seasons to determine when to switch from cooling mode to the heating or vice versa. Given this experience, it was critical for us to have a de-centralized all-year-round cooling and heating system, so we had requested it directly to an architectural firm. The ability to switch between cooling and heating anytime throughout the year and to have the flexibility to do it individually in each room. However, if we
Read more

Recent PAFMAC Reviews in Japan Part 3

Image
Taken from an article published in the Japanese weekly magazine, “HOTERES”. Richmond Hotel Tokyo Mejiro Hotel type: Business Hotel Guest rooms: 145 rooms Guest room renovation Air conditioning was our main focus when renovating. Our hotel had a conventional two-pipe fan coil system using cold and hot water, so before the renovation, we had always received many complaints about the room being too hot or too cold during spring and autumn seasons The hotel's storage room was full because it had piles of heating appliances and fans that we lent out to our guests upon request. We were searching for a cooling and heating system that could be interchanged individually in each room while using our existing 2 pipe fan coil system. We were introduced to PAFMAC by an air conditioning consultant. Our hotel converted from 2-pipe fan coil system to PAFMAC. When trouble occurs in any room, the hotel does not have to stop operating any other room, since PAFMAC works independe
Read more

Recent PAFMAC Reviews in Japan Part 5

Image
Upgrading the air conditioning system, co-developed by the hotel and the manufacturer. PAFMAC realizes all-year-round cooling and heating system while using 2-pipe fan coil system. As the wave of new hotel openings continue, great effort is poured into rebranding and new brand generation to differentiate from the competitors, and therefore air conditioning unit, which provides the most fundamental comfort in guest rooms, is gaining great attention. Mr. Ryuji Ikegami, Managing Officer of Prince Hotels, Inc. and Mr. Mikio Wakayama, President of NIPPON PMAC Co., discuss PAFMAC, which successfully converts conventional 2-pipe fan coil system into an all-year-round cooling and heating system. Ryuji Ikegami, Managing Officer, Principal Architect & Designer, Prince Hotels, Inc. Mikio Wakayama, CEO of NIPPON PMAC Co., Ltd. In addition to the basic functions of air conditioning, quiet operation and energy conservation as key factors. Moderator: To start, I heard that the new corporate HQ fo
Read more