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Eaton-Williams Qualitair QLC Installation Manual

Manual is about: Low Temperature DX Cassette

Summary of Qualitair QLC

  • Page 1

    Qlc low temperature dx cassette installation manual document 0412124 issue 2.1 05/06.

  • Page 2: Qlc/icu

    Page 2 eaton-williams qlc/icu packaged air handling units document 0412124 issue 2.1 05/06 contents section page installation & safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 3: Qlc/icu

    Page 3 eaton-williams document 0412124 issue 2.1 05/06 qlc/icu low temperature dx cassette installation & safety the units making up the air conditioning system must only be installed by a qualified engineer, following the mandatory and local codes of practice. Handling care must be taken when the u...

  • Page 4: Qlc/icu

    System description qlc indoor unit the qlc indoor unit has been designed to be installed in a false or suspended ceiling, but it can be mounted from a solid ceiling. In its basic form the unit is a cooling only unit with a plastic fascia (supplied separately), but depending on customer specification...

  • Page 5: Qlc/icu

    Location & mounting of indoor unit (qlc) preparation of suspended ceiling the ceiling tiles and suspension framework must be cut away and re-supported to suit the size of the unit such that the grille assembly, when fitted to the chassis, will cover all raw edges. Unit fixing the unit should be susp...

  • Page 6: Qlc/icu

    Eaton-williams low temperature dx cassette page 6 qlc/icu document 0412124 issue 2.1 05/06 qlc unit dimensions ceiling opening facia location e b a 132 100 100 100 100 132 f g h c 1 0 0 j k n 30 1 1 5 qlc10 qlc15/20 a facia length mm 1245 1245 b facia width mm 650 850 c facia depth mm 60 60 d body l...

  • Page 7: Qlc/icu

    Indoor unit access item no. Unit component acess details/fixings (1) filter remove inlet grille (2) inlet grille 2 off slide latches (3) facia outlet 2 off screws & 2 off keyhole fixings (4) (5) (6) (7) fan deck assembly 2 off screws and slide out (8) controller n/a (9) outlet air assembly swing bol...

  • Page 8: Qlc/icu

    Location & mounting of outdoor unit (icu) location the unit can either be mounted on a level surface or suspended from a vertical wall using the qualitair wall mounting optional kit (1). The unit should always be mounted on a load bearing wall and not a partition wall. Ensure there is sufficient fre...

  • Page 9: Qlc/icu

    Outdoor unit access (icu) item no. Unit component acess details/fixings (1) fan guard front access set screw fixings (2) fan/motor (fixed to rear of fan guard) front access set screw fixings on guard (3) condenser coil access from rear of unit (4) compressor remove “service access panel” (5) removab...

  • Page 10: Qlc/icu

    General service connections * figures in brackets are for three phase condensing units. Eaton-williams low temperature dx cassette page 10 qlc/icu document 0412124 issue 2.1 05/06 0 i 10 20 30 f e a b c d g h general service connections a - liquid line sizes qlc10 qlc15 qlc20 run 1 / 4 ” 1 / 4 ” 3 /...

  • Page 11: Qlc/icu

    Power & control connections single phase systems three phase systems wiring-up the unit electrical terminations should be made onto the screw terminal side of the indoor and outdoor unit terminal blocks. Wiring requirements power supply – connection of isolation power supply to the outdoor unit. Int...

  • Page 12: Qlc/icu

    Refrigerant pipe connections pipe installation run the suction and liquid lines in appropriately sized refrigeration copper tubing as detailed on page 10 of this installation manual. When calculating the effective run take into account any bends or oil traps. Note: 90 deg elbow equivalent length = 2...

  • Page 13: Qlc/icu

    Refrigerant commissioning refrigerant schematic diagram evacuation and charging connections evacuation, charging and refrigerant procedures after completing the refrigerant connections the following steps should be followed with reference to the evacuation and charging connections above. ❏ service g...

  • Page 14: Qlc/icu

    Ancillary service connections condensate removal as standard the condensate is removed by gravity drainage. The drains are run in two off flexible hoses (one off per drain tray) which are run to the outside of the unit and joined with a ‘y’ connector, which is housed within the connection of the uni...

  • Page 15: Qlc/icu

    Final checks eaton-williams low temperature dx cassette page 15 qlc/icu document 0412124 issue 2.1 05/06 check 1. Have all option kits been fitted? 2. Have units been mounted level and correct drainage been checked? 3. Have the suction line, expanded liquid line (if required) and condensate drains (...

  • Page 16

    Product ranges air-cooled & water-cooled liquid chillers packaged roof-top units full range of air handling units fan coil units package telecommunications units fresh air units condensing units air cooled condensers low temperature cassettes cellar & storage low temperature cooling units packaged i...