RCA RACE6011-6COM English Manual - Page 12

INSTALLATION & ASSEMBLY INSTRUCTIONS Introduction to Refrigerants R32 Before installing the appliance, you must read the manual carefully to get the safety information and notes. When filling the combustible refrigerant, any of your rude operations may cause serious injury or injuries to human body or bodies and object or objects. A leak test must be done after the installation is completed. It is a must to do the safety inspection before maintaining or repairing an air conditioner using combustible refrigerant in order to ensure that the fire risk is reduced to minimum. It is necessary to operate the machine under a controlled procedure in order to ensure that any risk arising from the combustible gas or vapor during the operation is reduced to minimum. Requirements for the total weight of filled refrigerant and the area of a room to be equipped with an air conditioner (are shown as in the following Tables GG.1 and GG.2) The maximum charge and the required minimum floor area m1 = (4 m3) x LFL , m2 = (26 m3)) x LFL, m3 = (130 m3 )x LFL Where LFL is the lower flammable limit in kg/ m3, R32 LFL is 0.306 kg/ m3. For the appliances with a charge amount m1 < M m2: The maximum charge in a room shall be in accordance with the following:m = max 2. 5 x (LFL)(5/4) x h0 x (A)1/2 The required minimum floor area Amin to install an appliance with refrigerant charge M (kg) shall be in accordance with following: Amin = (M/ (2.5 x (LFL)(5/4) x h0)) 2 Where: mmax is the allowable maximum charge in a room, in kg; M is the refrigerant charge amount in appliance, in kg; Amin is the required minimum room area, in m2; A is the room area, in m2; LFL is the lower flammable limit, in kg/m3; h0 is the installation height of the appliance, in meters for calculating mmax or A , min 1.8 m for wall mounted; Table GG.1 Maximum charge (kg) LFL Category (kg/m3) h0 (m) Floor area(m2) Category LFL (kg/m3 ) h0 (m) Table GG.2 Minimum room area (m2) Charge amount (M) ( kg) Minimum room area(m2) 10