Daikin CMSQ200A7W1B Installation Manual

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Contents

Daikin CMSQ200A7W1B Installation Manual Manual pdf 11 page image

CMSQ200+250A7W1BAir conditioning system4PW47543-1C – 07.2010Installation manual76.6. Example of connectionExample of connection(Connection of 4 indoor units Heat pump system)Branch with refnet joint Branch with refnet joint and refnet header Branch with refnet headerOne outdoor unit installedMaximum allowable length Between outdoor and indoor unitsActual pipe length Pipe length between outdoor and indoor units ≤165 m[Example] unit 4: a+b+c+d+h≤165 m [Example] unit 3: a+b+e≤165 m, unit 4: a+f+g≤165 m [Example] unit 4: a+e≤165 mEquivalent length Equivalent pipe length between outdoor and indoor units ≤190 m (Assume equivalent pipe length of refnet joint to be 0.5 m and of the refnet header to be 1.0 m. (forcalculation purposes))Total extension length Total piping length from outdoor unit to all indoor units ≤200 mAllowable height Between outdoor and indoor units Difference in height Difference in height between outdoor and indoor units (H1)≤30 mBetween indoor and indoor units Difference in height Difference in height between adjacent indoor units (H2)≤4 mAllowable length after the branch Actual pipe length Pipe length from first refrigerant branch kit (either refnet joint or refnet header) to indoor unit ≤40 m (See note on next page)[Example] unit 4: b+c+d+h≤40 m [Example] unit 3: b+e≤40 m, unit 4: f+g≤40 m [Example] unit 4: e≤40 mRefrigerant branch kit selectionRefrigerant branch kits can only be used with R410A.How to select the refnet joint• When using refnet joints at the first branch counted from the outdoor unit side.Choose from the following table in accordance with the capacity of the outdoor unit.• For refnet joints other than the first branch, select the proper branch kit model based onthe total capacity index.How to select the refnet header• Choose from the following table in accordance with the total capacity of all the indoorunits connected below the refnet header.Example of downstream indoor units[Example]in case of refnet joint C; indoor units 3+4[Example]in case of refnet joint B; indoor unit 4,in case of refnet header; indoor units 1+2+3[Example]in case of refnet header;indoor units 1+2+3+4indoor unitrefnet jointrefnet headera b c d H1hA B C D1 2 34H2e f gH1H2a fbc d eg4A B1 2 3aH1H2c d eb1 2 34Outdoor unit capacity type Refrigerant branch kit nameCMSQ200 KHRQ22M20TCMSQ250 KHRQ22M29T9Indoor capacity type Refrigerant branch kit name<200 KHRQ22M20T200≤x<250 KHRQ22M29T9Indoor capacity type Refrigerant branch kit name50~125 KHRQ22M29H